ALL FAQS (Questions only )

 

sno

category

Main qsn

sub qsn

1

AZURE

Which Azure features did you work

 

2

AWS

Which AWS features did you work

 

3

Data Governance

LIST OF data quality checks -pg 28

 

4

Data Governance

What is Data governance (pg 109 and 116)

 

5

Data Governance

Contents of Data Governance :

 

6

Data Governance

Data Governance Framework Steps :

 

7

Data Governance

Explain Gdpr & Hipaa in data governance? 

 

8

Data modeling

 3 levels of Data modeling

 

9

Data modeling

Logical and physical model - Differences ?

 

10

Data modeling

Star schema & Snowflake schema - Differences ?

 

11

Data modeling

Types of Dimension tables (12)

 

12

Data modeling

What is factless fact table

 

13

Data modeling

Which tools used for Data profiling tools

 

14

Data modeling

ACID properties

 

15

Data modeling

How to do Data model testing

 

16

Data modeling

What are roles of data modeler 61

 

17

Data modeling

Roles of data architect

 

18

Data modeling

steps to prepare STTM

 

19

Data modeling

What is Data vault modeling and contents

 

20

Data modeling

when do you suggest client for Data vault

 

21

Data modeling

steps for Dimensional model

 

22

Data modeling

Diff. View and materialized view

 

23

Data modeling

Types of Nosql databases Did you work on

 

24

Data modeling

explain Ralph and kimball approaches

 

25

Data modeling

How do you calculate the size of each table 

 

26

Data modeling

Problems / Chellenges of Data modeling ?

 

27

Data modeling

common Data modeling tools list 

 

28

Data modeling

Best Data modeling practices

 

29

Data modeling

Common mistakes in data modeling include

 

30

Data modeling

Steps to convert a relational table to 3nf

 

29

DWH qsns

Types of Fact tables

 

30

DWH qsns

Types of facts

 

31

DWH qsns

Granularity and Granule

 

32

DWH qsns

What is Data Mart

 

33

DWH qsns

Steps in Datawarehouse life cycle steps

 

34

DWH qsns

What is Datawarehouse

 

35

DWH qsns

what is ODS( operational data store)

 

36

DWH qsns

OLTP & OLAP- differences (pg 17) 53

 

37

DWH qsns

surrogate key (33) and when to use

 

38

DWH qsns

What is data lakehouse

 

39

DWH qsns

What is a Data Lake?

 

40

DWH qsns

When to use a surrogate key

 

41

DWH qsns

Why do we need Data warehouse when Application database already exists ?

 

42

ERWIN qsns

Erwin - Data modeler workspace

 

43

ERWIN qsns

Erwin - Domains

 

44

ERWIN qsns

Erwin - types of relationships

 

45

ERWIN qsns

Erwin - which erwin features did you use

 

46

ERWIN qsns

Erwin - which feature used to merge the subtype tables to supertype

 

47

ERWIN qsns

Erwin - Forward and reverse engineering steps

 

48

ERWIN qsns

Erwin - Complete compare feature

 

49

ERWIN qsns

Erwin - Naming standards

 

50

ERWIN qsns

Erwin - Name hardening

 

51

ERWIN qsns

Erwin - querying tool

 

52

ERWIN qsns

Erwin - subject areas

 

53

ERWIN qsns

Erwin - identifying and non identifying relationships differences...........

 

54

ERWIN qsns

ERWIN - how maintain versions In erwin
( DELTA AND NAMED VERSIONS)

 

55

ETL qsns

Datalake and its layers

 

56

ETL qsns

What is data lienage

 

57

ETL qsns

ELT is better suited for which  data sets

 

58

ETL qsns

what is data lineage ? and tools

 

59

ETL qsns

What is Medallion architechture ?

 

60

PERF TUNING

what is most likely reason that sql query may run slowly

 

61

snowflake db

List of Snowflake DB Features

 

62

SQL qsns

types of indexes 53

 

63

SQL qsns

Normalization (34) types

 

64

SQL qsns

sql query : find nth highest salary - 54

 

65

SQL qsns

sql query : find and delete duplicate rows

 

66

SQL qsns

find  is inner join and outer join count of below

 

67

SQL qsns

Which tools used for 'schema comparision'

 

68

SQL qsns

SQL : query to show Total salary  of each department

 

69

SQL qsns

 SQL : query to sum of salary by dept and cumulative salary by each dept 

 

70

SQL qsns

sql :  union union all difference

 

71

SQL qsns

DIFFERENCE between joins and union

 

72

SQL qsns

Query optimization best practices

 

73

Data architect

Harish P:
Question: Imagine you are designing a database schema for a new e-commerce platform. The platform needs to store data about customers, orders, products, and categories. What steps would you take, and what considerations would you have in mind while creating this schema?

Strategy:

Scenario 1: Designing Database Schema for an E-commerce Platform

74

Data architect

Harish P:
The e-commerce platform you designed is facing high traffic and large data volumes, resulting in slower response times. What strategies could you employ to improve performance without compromising data integrity?

Scenario 2: Scaling Database for High Traffic E-commerce Platform

75

Data architect

You’ve been asked to introduce a recommendation feature to suggest products based on the user’s past purchases. How would you modify the existing data model to support this new feature?

Scenario 3: Introducing New Features to the E-commerce Platform

76

Data architect

Question: Assume you’ve been tasked with designing a data warehouse for a large retail company that wants to analyze sales data across multiple stores. How would you approach this task, and what factors would you consider in your design?

Scenario 1: Designing Data Warehouse Structures

77

Data architect

Your current data warehouse is experiencing performance issues during peak times. What strategies would you consider to optimize the data warehouse structure and improve performance?

Scenario 2: Optimizing Data Warehouse Structures

78

Data architect

: You need to design an ETL pipeline to integrate data from several different sources into your data warehouse. What steps would you take in this process, and what challenges would you anticipate?

Scenario 3: Designing ETL Pipelines

79

Data architect

Imagine you’re asked to consolidate customer data from two disparate systems into a single CRM platform. The data models and formats in these systems are distinct. What strategies would you employ to successfully merge the data, and what challenges do you anticipate?

Scenario 1: Merging Data from Different Systems

80

Data architect

 Suppose you’re overseeing a project to transition from an existing database system to a new one that better accommodates the company’s growth. What actions would you take to facilitate a seamless transition, and how would you prevent data loss?

Scenario 2: Data Migration Between Systems

81

Data architect

 Your company is deploying a new ERP system and needs to transfer all existing data from the old system. However, there are concerns about data integrity and potential system downtime. How would you approach this task?

Scenario 3: ERP System Implementation and Data Migration

82

Data architect

: Imagine you’ve been asked to enhance the security of a customer database in response to recent cyber threats. What steps would you take to secure the database, and what factors would influence your approach?

Scenario 1: Implementing Security Measures

83

Data architect

Your organization has been criticized for its lack of robust data privacy measures. As a data architect, how would you address these concerns and improve the overall data privacy strategy?

Scenario 2: Ensuring Data Privacy

84

Data architect

Question: You’re working for a healthcare organization that needs to balance data accessibility for patient care with stringent data security requirements. How would you approach this challenge to ensure both needs are met?

Scenario 3: Balancing Data Accessibility and Security

85

Data architect

Suppose you’ve been assigned to design a big data architecture for a multinational company that generates a large amount of data daily. What factors would you consider when designing this architecture, and how would you ensure scalability?

Scenario 1: Designing Big Data Architecture

86

Data architect

Your organization plans to migrate its on-premises data warehouse to a cloud-based architecture. As a data architect, how would you plan this migration?

Scenario 2: Migrating to Cloud-Based Architecture

87

Data architect

Managing Cloud-Based Architecture

Question: As a data architect, how would you ensure efficient data management and security in a cloud-based architecture?

 

88

Data architect

1. Have you ever taken part in improving a company’s existing data architecture? Please describe your involvement in the process and the overall impact the changes had on the company.

 

89

Data architect

have you faced any challenges related to the company’s data security? How did you ensure the integrity of the data was not compromised?

 

90

Data architect

t, you should be current with the latest technologies and developments. How do you keep yourself informed about the new trends in data architecture?

 

91

Data architect

Many companies use data from internal and external sources. Have you faced any problems while integrating a new external data source into the existing company’s infrastructure? How did you solve these issues

 

92

Data architect

Have you worked with open-source technology? Tell us about issues you’ve come across when using it.

 

93

Data architect

What is a primary key and a foreign key?

 

94

Data architect

What modeling tools have you used in your work? Which do you consider efficient or powerful?

 

95

Data architect

What’s your experience with batch and real-time data processing?

 

96

Data architect

As a data architect, what metrics have you created or used to measure the quality of new and existing data?

 

97

Data architect

What challenges have you faced working with colleagues with no technical background? How did you address and overcome these challenges?

 

98

Data architect

How would you resolve a conflict within your team?

 

99

Data architect

What is the most critical factor for you when taking a job?

 

100

Data architect

Are you also interviewing with any of our close competitors?

 

101

Data architect

How would you assess your performance with these data architect interview questions?

 

102

Requirement gathering

Can you use the cloud? (nowadays, this is almost always yes, if not, let’s evaluate why and see if we can overcome it)

 

103

Requirement gathering

Is this a new solution or a migration?

 

104

Requirement gathering

What is the skillset of the developers?

 

105

Requirement gathering

Is this an OLTP or OLAP/DW solution?

 

106

Requirement gathering

Will you use non-relational data (variety)?

 

107

Requirement gathering

How much data do you need to store (volume)?

 

108

Requirement gathering

Will you have streaming data (velocity)?

 

109

Requirement gathering

Will you use dashboards and/or ad-hoc queries?

 

110

Requirement gathering

Will you use batch and/or interactive queries?

 

111

Requirement gathering

How fast do the operational reports need to run (SLA’s)?

 

112

Requirement gathering

Will you do predictive analytics/machine learning (ML)?

 

113

Requirement gathering

Do you want to use Microsoft tools or open source?

 

114

Requirement gathering

What are your high availability and/or disaster recovery requirements?

 

115

Requirement gathering

Do you need to master the data (MDM)?

 

116

Requirement gathering

Are there any security limitations with storing data in the cloud (i.e. defined in your customer contracts)?

 

117

Requirement gathering

Does this solution require 24/7 client access?

 

118

Requirement gathering

How many concurrent users will be accessing the solution at peak-time and on average?

 

119

Requirement gathering

What is the skill level of the end users?

 

120

Requirement gathering

What is your budget and timeline?

 

121

Requirement gathering

Is the source data cloud-born and/or on-prem born?

 

122

Requirement gathering

How much daily data needs to be imported into the solution?

 

123

Requirement gathering

What are your current pain points or obstacles (performance, scale, storage, concurrency, query times, etc)?

 

124

Requirement gathering

Are you ok with using products that are in public or private preview?

 

125

Requirement gathering

What are your security requirements? Do you need data sovereignty?

 

126

Requirement gathering

Is data movement a challenge?

 

127

Requirement gathering

How much self-service BI would you like?

 

128

Data architect

 1.       How do you approach designing a scalable data architecture?"

 

129

Data architect

2.       "Can you explain the concept of data governance and why it's important?"

 

130

Data architect

3.       "How do you ensure data quality and integrity in your designs?"

 

131

Data architect

"Describe your experience with different database technologies and how you choose the right one for a project."

 

132

Data architect

"How do you handle data security and privacy in your architectures?"

 

133

Data architect

"Explain how you would handle a situation where the data volume exceeds the capacity of your current architecture."

 

134

Data architect

"How do you stay current with emerging technologies and trends in data architecture?"

 

135

Data architect

 a time when you had to optimize or refactor an existing data architecture for better performance?

 

136

Data architect

"Could you elaborate on the current data architecture and how it supports the company's business objectives?"

 

137

Data architect

"What are the main data-related challenges the company is facing, and how do you expect the Data Architect to address them?"

 

138

Data architect

"How does the organization approach innovation in data management, and what role does the Data Architect play in this process?"

 

139

Data architect

"Can you describe the team dynamics and how cross-functional collaboration works with the Data Architect role?"

 

140

Data architect

What Does a Good Data Architect Candidate Look Like?

 

141

Data architect

"How do you design a scalable data architecture?"

 

142

Data architect

What's the best way to discuss past failures or challenges in a Data Architect interview?

 

143

Data architect

How can I effectively showcase problem-solving skills in a Data Architect interview?

 

144

Data architect

1. How would you create a model to describe our sales process? What different elements would you add for a distributed sales team?

 

145

Data architect

2. What model would you use to forecast quarterly and annual sales trends? Why?

 

146

Data architect

3. If you had to review an existing database to identify potential improvements, where would you start?

 

147

Data architect

4. How would you gather user requirements for a new project?

 

148

Data architect

5. What’s the difference between a dimensional model and a third normal form data model?

 

149

Data architect

6. What are software design patterns? Which patterns are you familiar with?

 

150

Data architect

7. What is the difference between OLTP and OLAP and where do you use each of them?

 

151

Data architect

8. What is snowflake schema?

 

152

Data architect

9. What visualization tools (e.g. Tableau, D3.js and R) have you used?

 

153

Data architect

10. What’s the most difficult database problem you faced, and how did you handle it?

 

154

Data architect

1. Can you explain the concept of Data Modelling and its importance in the role of a Data Architect?

 

155

Data architect

2. How do you approach the challenge of ensuring data security?

 

156

Data architect

3. Can you detail your experience with Database Management Systems (DBMS)?

 

157

Data architect

4. What is data normalization, and why is it important?

 

158

Data architect

5. Could you explain the concept of Data Partitioning?

 

159

Data architect

8. Can you explain the concept of ETL and its importance in data handling?

 

160

Data architect

9. How do you handle data redundancy and what techniques do you use?

 

161

Data architect

10. What is a Data Lake and how does it differ from a Data Warehouse?

 

162

Data architect

11. Can you explain Big Data and its relevance in modern business?

 

163

Data architect

12. How do you ensure high availability and disaster recovery in databases?

 

164

Data architect

13. Explain your experience with data virtualization.

 

165

Data architect

14. How do you handle change management in database environments?

 

166

Data architect

15. Can you explain what a Schema is in database design?

 

167

Data architect

1. Why did you choose to pursue your career as a data architect?

 

168

Data architect

5. How can a company ensure data security?

 

169

Data architect

1. Have you ever taken part in improving a company’s existing data architecture? Please describe your involvement in the process and the overall impact the changes had on the company.

 

170

Data architect

2. As a data architect, have you faced any challenges related to the company’s data security? How did you ensure the integrity of the data was not compromised?

 

171

Data architect

3. As a data architect, you should be current with the latest technologies and developments. How do you keep yourself informed about the new trends in data architecture?

 

172

Data architect

1. Many companies use data from internal and external sources. Have you faced any problems while integrating a new external data source into the existing company’s infrastructure? How did you solve these issues?

 

173

Data architect

2. Have you worked with open-source technology? Tell us about issues you’ve come across when using it.

 

174

Data architect

3. State and describe the different types of SQL Joins.

 

175

Data architect

6. What modeling tools have you used in your work? Which do you consider efficient or powerful?

 

176

Data architect

7. What’s your experience with batch and real-time data processing?

 

177

Data architect

8. As a data architect, what metrics have you created or used to measure the quality of new and existing data?

 

178

Data architect

1. What challenges have you faced working with colleagues with no technical background? How did you address and overcome these challenges?

 

179

Data architect

3. How would you resolve a conflict within your team?

 

180

Data architect

4. What is the most critical factor for you when taking a job?

 

181

Data architect

2. Can you explain the difference between OLTP and OLAP?

 

182

Data architect

3. What is a data model, and why is it important?

 

183

Data architect

7. What is the difference between structured and unstructured data?

 

184

Data architect

8. What is a database index, and why is it important?

 

185

Data architect

9. What are the ACID properties in a database?

 

186

Data architect

13. What is the purpose of a data dictionary?

 

187

Data architect

14. What are the different types of data relationships in a database?

 

188

Data architect

16. What are the different types of database schemas?

 

189

Data architect

17. How would you implement data security in a database system?

 

190

Data architect

20. How do you design a scalable database?

 

191

Data architect

21. How do you design an effective data modeling strategy?

 

192

Data architect

22. What are the best practices for database indexing?

 

193

Data architect

23. What is data denormalization, and when should it be used?

 

194

Data architect

24. Can you explain the concept of data federation?

 

195

Data architect

25. How do you handle data versioning in a database system?

 

196

Data architect

26. What are materialized views, and how are they used?

 

197

Data architect

28. How do you approach database performance tuning?

 

198

Data architect

29. What are the considerations for choosing between SQL and NoSQL databases?

 

199

Data architect

30. How would you handle large datasets and ensure performance optimization?

 

200

Data architect

31. How do you optimize SQL queries for better performance?

 

201

Data architect

32. Explain the use of NoSQL databases.

 

202

Data architect

33. What is the role of metadata in data management?

 

203

Data architect

34. How do you design a high-availability database system?

 

204

Data architect

35. What is data governance, and why is it important?

 

205

Data architect

36. Explain the CAP theorem

 

206

Data architect

37. How do you design a data architecture for a cloud environment?

 

207

Data architect

38. What is the importance of data lineage in data architecture?

 

208

Data architect

40. What are the benefits and challenges of using microservices architecture for data management?

 

209

Data architect

41. How do you approach performance tuning for a complex SQL query?

 

210

Data architect

42. Describe a time when you had to design a data solution under a tight deadline. How did you handle it?

 

211

Data architect

43. How do you handle conflicts within a team, especially when there are disagreements about data architecture decisions?

 

212

Data architect

44. Can you give an example of a time when you identified a major flaw in a data system? What steps did you take to address it?

 

213

Data architect

47. What is the most challenging data project you’ve worked on? What made it challenging, and how did you overcome those challenges?

 

214

Data architect

48. How do you prioritize your tasks when managing multiple projects or deadlines?

 

215

Data architect

49. Tell me about a time when you had to advocate for a change in data management practices. How did you convince stakeholders to support your proposal?

 

216

Data architect

50. Describe a time when you had to troubleshoot a critical data issue. What steps did you take, and what was the outcome?

 

217

Data architect

51. How do you ensure the quality and integrity of data in your architecture designs?

 

218

Data architect

1. Question: What is the role of a data architect, and how does it differ from that of a database administrator?

 

219

Data architect

2. Question: How do you approach designing a data architecture that supports both structured and unstructured data?

 

220

Data architect

3. Question: Explain the concept of data governance and its importance in a data architecture.

 

221

Data architect

4. Question: How do you ensure data security in a data architecture, especially considering the increasing threats to cybersecurity?

 

222

Data architect

5. Question: Can you explain the concept of ETL (Extract, Transform, Load) in the context of data architecture?

 

223

Data architect

8. Question: How would you design a scalable and high-performance data architecture to handle a growing volume of data?

 

224

Data architect

9. Question: Can you explain the concept of data virtualization and its role in modern data architectures?

 

225

Data architect

10. Question: How do you ensure data quality in a data architecture, and what are common challenges associated with maintaining data quality?

 

226

Data architect

 Explain the concept of ACID properties

 

227

Data architect

3. Explain the concept of data mesh and its potential advantages over traditional centralized data governance models. How would you implement a data mesh architecture in practice?

 

228

Data architect

4.  Discuss frameworks or key performance indicators (KPIs) you consider crucial for data-driven decision making.

 

229

Data architect

Explain your experience with data security and privacy regulations like GDPR or CCPA

 

230

Data architect

6. How would you handle the challenge of data provenance and lineage tracking within a complex data architecture with multiple data sources and transformations?

 

231

Data architect

1. Question: Imagine you’re tasked with designing a data architecture for a rapidly growing e-commerce platform. The company wants to enhance its customer experience by personalizing product recommendations. How would you approach this, considering both scalability and real-time processing?

 

232

Data architect

2. Question: A multinational company with diverse business units and varying data needs is seeking a unified data architecture. How would you design a solution that accommodates the different data requirements of each business unit while ensuring overall coherence and governance?

 

233

Data architect

3. Question: You join a startup that is rapidly innovating in a dynamic market. The company wants to leverage big data analytics for gaining a competitive edge. How would you design a cost-effective data architecture that can scale as the startup grows?

 

234

Data architect

4. Question: You’re hired by a traditional enterprise that is transitioning to a cloud-first strategy. The organization has legacy systems with large volumes of historical data. How would you plan the migration to the cloud while ensuring minimal disruption and maintaining data integrity?

 

235

Data architect

5. Question: You are leading a data architecture team in a highly regulated industry, such as finance or healthcare. How would you design a secure and compliant data architecture that meets industry regulations without sacrificing innovation and efficiency?

 

236

Data Governance

 1. What is data governance and why is it important?

 

237

Data Governance

2. Can you explain the key components of data governance?

 

238

Data Governance

3. How does data governance align with an organization’s business strategy?

 

239

Data Governance

4. How do you ensure data quality and integrity?

 

240

Data Governance

5. What tools and technologies are commonly used in data governance?

 

241

Data Governance

6. Can you explain the process of data classification and its significance?

 

242

Data Governance

7. How do you develop and implement data governance policies?

 

243

Data Governance

8. Describe your experience with data governance frameworks (e.g., DAMA-DMBOK).

 

244

Data Governance

9. How do you handle data stewardship and data ownership?

 

245

Data Governance

10. How do you ensure compliance with data privacy regulations (e.g., GDPR, CCPA)?

 

246

Data Governance

11. What strategies do you use to protect sensitive data?

 

247

Data Governance

12. How do you manage data access and control within an organization?

 

248

Data Governance

13. How would you handle a situation where data quality issues are identified?

 

249

Data Governance

14. Describe a time when you had to implement a data governance solution in a complex environment.

 

250

Data Governance

15. How do you prioritize data governance initiatives in a resource-constrained setting?

 

251

Data Governance

16. How do you communicate the importance of data governance to non-technical stakeholders?

 

252

Data Governance

17. Describe your approach to training and educating employees about data governance.

 

253

Data Governance

18. How do you measure the success of data governance initiatives?

 

254

AWS FAQS

1. Explain in depth what AWS is?

 

255

AWS FAQS

 2. What are the three varieties of cloud services?

 

256

AWS FAQS

3. Define Auto-scaling?

 

257

AWS FAQS

4. What do you mean by AMI?

 

258

AWS FAQS

5. Can you illustrate the relationship between an instance and AMI?

 

259

AWS FAQS

6. What does geo-targeting in CloudFront mean?

 

260

AWS FAQS

7. What is AWS S3?

 

261

AWS FAQS

 8. How can one send a request to Amazon S3?

 

262

AWS FAQS

 9. What is a default storage class in S3?

 

263

AWS FAQS

 10. What different storage classes accessible in Amazon S3?

 

264

AWS FAQS

11. What are the ways to encipher the data in S3?

 

265

AWS FAQS

12.On what grounds the pricing policy of the S3 is decided?

 

266

AWS FAQS

13. What are the different types of routing policies that are available in Amazon route S3?

 

267

AWS FAQS

14. What is the standard size of an S3 bucket?

 

268

AWS FAQS

15. Is Amazon S3 an international service?

 

269

AWS FAQS

16. What are the important differences between EBS and S3?

 

270

AWS FAQS

17. What is the process to upgrade or downgrade a system that involves near-zero downtime?

 

271

AWS FAQS

18. What all is included in AMI?

 

272

AWS FAQS

19. Are there any tools or techniques available that will help one understand if you are paying more than you should be and how accurate it is?

 

273

AWS FAQS

20. Apart from the console, is there any substitute tool available that will help me log into the cloud environment?

 

274

AWS FAQS

21. Can you name some AWS services that are not region-specific?

 

275

AWS FAQS

22. Can you define EIP?

 

276

AWS FAQS

23. What is VPC?

 

277

AWS FAQS

26. How many subnets can one have as per VPC?

 

278

AWS FAQS

27. Provide the default table that we get when one sets up AWS VPC?

 

279

AWS FAQS

28. How can security to your VPC be controlled?

 

280

AWS FAQS

  29. Does the property of the broadcast or multicast be backed up by Amazon VPC?

 

281

AWS FAQS

 30. Explain the difference between a Domain and a Hosted Zone?

 

282

AWS FAQS

31. What are NAT gateways?

 

283

AWS FAQS

32. How many buckets can be set-up in AWS by default?

 

284

AWS FAQS

33. How is SSH agent forwarding set-up so that you do not have to copy the key every time you log in?

 

285

AWS FAQS

34. What are the different varieties of EC2 instances based on their expenditure?

 

286

AWS FAQS

35. What is the best security practice for Amazon EC2?

 

287

AWS FAQS

36. What are the steps to configure CloudWatch to reclaim EC2 instance?

 

288

AWS FAQS

37. What are the various types of AMI designs?

 

289

AWS FAQS

38. How can a user gain access to a specific bucket?

 

290

AWS FAQS

39. How can a current instance be added to a new Autoscaling group?

 

291

AWS FAQS

40. What is SQS?

 

292

AWS FAQS

41. What are the types of queues in SQS?

 

293

AWS FAQS

 42. What are the different types of instances available?

 

294

AWS FAQS

43. What aspects need to be considered while migrating to Amazon Web Services?

 

295

AWS FAQS

44. What are the components of an AWS CloudFormation template?

 

296

AWS FAQS

45. What are the key pairs in AWS?

 

297

AWS FAQS

 46. How many Elastic IPs are granted you to set up by AWS?

 

298

AWS FAQS

47. What are the advantages of auto-scaling?

 

299

AWS FAQS

48. How can old snapshots be auto-deleted?

 

300

AWS FAQS

49. What are the varieties of load balancers in AWS?

 

301

AWS FAQS

50. Are there any different AWS IAM divisions that one can control?

 

302

AWS FAQS

51. What do you mean by subnet?

 

303

AWS FAQS

52. What is the portrayal of AWS CloudTrail?

 

304

AWS FAQS

 53. Illustrate Amazon Elastic Cache?

 

305

AWS FAQS

55. What is the duration taken by the boot time for the instance stored backed AMI?

 

306

AWS FAQS

56. Do you require an internet gateway to utilize peering connections?

 

307

AWS FAQS

 57. What are the different types of Cloud services?

 

308

AWS FAQS

58. Can you state some important features of the Amazon cloud search?

 

309

AWS FAQS

59. Is vertical scaling allowed in Amazon instance?

 

310

AWS FAQS

Yes. Vertical estimation can be scaled in Amazon instance.

 

311

AWS FAQS

60. What are the different layers of cloud architecture, as is explained in AWS training?

 

312

AWS FAQS

61. What do you mean by Cloud Watch?

 

313

AWS FAQS

 62. Can you provide few examples of the DB engine that is utilized in AWS RDS?

 

314

AWS FAQS

63. Is region based services on all services get supported by Amazon?

 

315

AWS FAQS

 64. Which is the cheapest AWS region?

 

316

AWS FAQS

65. What are the advantages of AWS?

 

317

AWS FAQS

 66. Which service would you utilize if you need to perform real-time administration of AWS services and get actionable insights?

 

318

AWS FAQS

67. Is AWS RDS available for free?

 

319

AWS FAQS

 68. State the difference between block storage and file storage?

 

320

AWS FAQS

 How do you design a data lake on AWS? What are the key services you would use?

 

321

AWS FAQS

Explain the difference between a data lake and a data warehouse in the context of AWS services.

 

322

AWS FAQS

Describe your process for migrating an on-premise data warehouse to Amazon Redshift.

 

323

AWS FAQS

When would you use Amazon S3 as a data lake, and what are its key advantages and disadvantages?

 

324

AWS FAQS

What is the purpose of AWS Glue? How does it fit into an ETL pipeline on AWS?

 

325

AWS FAQS

How would you handle a continuously streaming data source and ingest it into a data lake? What AWS services would you use?

 

326

AWS FAQS

Explain the concept of schema-on-read versus schema-on-write and how it applies to an AWS data architecture.

 

327

AWS FAQS

How do you optimize query performance in Amazon Redshift?

 

328

AWS FAQS

What is the role of AWS Lake Formation, and how does it simplify building a data lake?

 

329

AWS FAQS

Describe a scenario where you would use Amazon Kinesis versus Amazon MSK.

 

330

AWS FAQS

How do you implement data governance and security in a multi-account AWS environment?

 

331

AWS FAQS

What are the key considerations for cost optimization in an AWS data architecture?

 

332

AWS FAQS

Explain the different types of Amazon Redshift nodes and how you would choose the right node type for a specific workload.

 

333

AWS FAQS

How would you design a serverless data processing pipeline using AWS Lambda, Amazon S3, and Amazon Athena?

 

334

AWS FAQS

Discuss a time you had to troubleshoot a performance issue in a big data pipeline on AWS.

 

335

AWS FAQS

What is the role of a data catalog in a modern data architecture, and what AWS service would you use for it?

 

336

AWS FAQS

How do you ensure data quality and integrity in a complex data pipeline?

 

337

AWS FAQS

Explain the concept of ACID transactions and how you would achieve them in a data lake environment using services like AWS Glue or Apache Hudi/Iceberg on AWS.

 

338

AWS FAQS

What is the purpose of using different storage classes in Amazon S3 for a data lake?

 

339

AWS FAQS

Describe your approach to building a disaster recovery plan for a critical data warehouse on AWS.

 

340

AWS FAQS

 How would you design a data mesh on AWS, and what are the key principles you'd apply?

 

341

AWS FAQS

Explain the concept of a "medallion architecture" (Bronze, Silver, Gold layers) and how you would implement it in an S3 data lake.

 

342

AWS FAQS

When would you choose Amazon Athena over Amazon Redshift Spectrum for querying data in S3?

 

343

AWS FAQS

Describe a solution for a real-time analytics dashboard on AWS. What services would you use and why?

 

344

AWS FAQS

What are some key security measures you would implement for sensitive data in an AWS data lake?

 

345

AWS FAQS

How do you manage schema evolution in a data lake, especially when dealing with different data formats like JSON, Parquet, and Avro?

 

346

AWS FAQS

Compare and contrast AWS DynamoDB and Amazon Aurora for OLTP workloads.

 

347

AWS FAQS

Explain the use case for AWS Step Functions in a data pipeline.

 

348

AWS FAQS

How would you handle slowly changing dimensions (SCDs) in a data warehouse built on Amazon Redshift?

 

349

AWS FAQS

What are the pros and cons of using a serverless data architecture (e.g., AWS Lambda, Fargate) versus a more traditional EC2-based approach?

 

350

AWS FAQS

Describe a method for automating and monitoring data pipelines on AWS.

 

351

AWS FAQS

How do you design for high availability and fault tolerance in a data platform on AWS?

 

352

AWS FAQS

What is the difference between AWS Redshift's RA3 and DC2 node types, and when would you choose one over the other?

 

353

AWS FAQS

How would you design a solution for processing and analyzing machine learning data at scale?

 

354

AWS FAQS

Discuss the benefits and challenges of using open-source frameworks like Apache Spark on Amazon EMR.

 

355

AWS FAQS

How do you approach data partitioning and clustering to optimize query performance in a data lake or data warehouse?

 

356

AWS FAQS

What is AWS Data Exchange, and how could it be used in a data architecture?

 

357

AWS FAQS

Explain the difference between using AWS Glue for ETL and running a custom Spark job on Amazon EMR.

 

358

AWS FAQS

How do you implement a data-sharing strategy between different business units in a large organization using AWS services?

 

359

AWS FAQS

Describe your approach to data modeling for a data warehouse, including star schema and snowflake schema design.

 

360

AWS FAQS

 1. How would you model a data warehouse on AWS for a business that has many small, fast-growing datasets?

 

361

AWS FAQS

2. Explain how to model data for a search and analytics use case using Amazon OpenSearch Service.

 

362

AWS FAQS

3. How do you approach data modeling for data migration from an on-premise data warehouse to AWS?

 

363

AWS FAQS

4. What are the key considerations for data modeling when using Amazon Redshift Spectrum?

 

364

AWS FAQS

5. How would you design a data model for a financial application that requires strong ACID compliance?

 

365

AWS FAQS

6. Explain how to model an IoT data stream for analysis using AWS IoT Core and a data lake.

 

366

AWS FAQS

7. What is the role of a data mesh in a data modeling strategy, and how do you implement it on AWS?

 

367

AWS FAQS

8. How do you model data for data sharing using AWS Data Exchange?

 

368

AWS FAQS

9. How would you model data for a recommendation engine using AWS?

 

369

AWS FAQS

10. How do you handle unstructured data modeling in a data lake on AWS?

 

370

AWS FAQS

11. What is the difference between a key-value data model and a document data model on AWS?

 

371

AWS FAQS

12. How do you model a data warehouse on AWS that combines transactional data with external data sources?

 

372

AWS FAQS

13. What is the purpose of using a denormalized data model in Amazon Redshift?

 

373

AWS FAQS

14. How would you design a data model for a global e-commerce application using AWS services?

 

374

AWS FAQS

15. Describe a data model for an application that uses a combination of Redis and a relational database on AWS.

 

375

AWS FAQS

16. How do you model data for data governance and access control using AWS Lake Formation?

 

376

AWS FAQS

17. What are the key differences in data modeling for a data lake vs. a data warehouse, in terms of schema?

 

377

AWS FAQS

18. How would you model data for a customer 360-degree view using AWS?

 

378

AWS FAQS

19. Describe the data modeling approach for an application that uses AWS Lambda and S3.

 

379

AWS FAQS

20. How would you model a data warehouse on AWS to support both historical data analysis and real-time reporting?

 

380

AWS FAQS

1. How would you design a data model for a multi-tenant SaaS application on Amazon DynamoDB?

 

381

AWS FAQS

2. Explain how to model a star schema in Amazon Redshift, and what are the key considerations?

 

382

AWS FAQS

3. How do you handle a data model with complex many-to-many relationships in AWS?

 

383

AWS FAQS

4. What is the difference in data modeling between a relational database (Amazon Aurora) and a document database (DynamoDB)?

 

384

AWS FAQS

5. Describe how to model a data lake using the "medallion architecture" on AWS.

 

385

AWS FAQS

6. How would you model data for a time-series analytics application using Amazon Timestream?

 

386

AWS FAQS

7. What is the purpose of using a sort key in an Amazon DynamoDB data model?

 

387

AWS FAQS

8. How do you design for schema evolution in a data lake on Amazon S3?

 

388

AWS FAQS

9. What are the key differences in data modeling for Amazon Aurora vs. Amazon Redshift?

 

389

AWS FAQS

10. How would you model a data warehouse on AWS that uses a data lake for raw data?

 

390

AWS FAQS

11. Describe how to model data for a graph use case using Amazon Neptune.

 

391

AWS FAQS

12. How do you model data for data sharing and governance in a multi-account AWS environment?

 

392

AWS FAQS

13. What is the role of a data catalog (AWS Glue Data Catalog) in a data model?

 

393

AWS FAQS

14. How would you model data for machine learning feature engineering in an AWS environment?

 

394

AWS FAQS

15. What are some of the key trade-offs in data modeling for a data lake vs. a data warehouse on AWS?

 

395

AWS FAQS

16. How would you design a data model for a real-time leaderboard in a gaming application using AWS services?

 

396

AWS FAQS

17. How do you handle dimensional modeling with JSON data in an S3 data lake?

 

397

AWS FAQS

18. Describe a data model for an IoT application that uses Amazon Kinesis and S3.

 

398

AWS FAQS

19. How would you model an audit trail or log data that is stored in S3?

 

399

AWS FAQS

20. When would you use a combination of DynamoDB and Redshift in a data model?

 

400

AWS FAQS

 1. How would you design a cost-effective data warehousing solution on AWS?

 

401

AWS FAQS

2. Explain the purpose of AWS Glue Data Catalog.

 

402

AWS FAQS

3. What is the difference between Amazon Redshift and Amazon RDS?

 

403

AWS FAQS

4. How do you handle schema evolution in a data lake?

 

404

AWS FAQS

5. When would you use Amazon EMR?

 

405

AWS FAQS

6. Describe a serverless data ingestion pipeline.

 

406

AWS FAQS

7. How do you ensure data security in an AWS data lake?

 

407

AWS FAQS

8. What is the purpose of Amazon Athena?

 

408

AWS FAQS

9. How would you handle a batch processing workload on AWS?

 

409

AWS FAQS

10. When would you use Amazon S3 as a data lake?

 

410

AWS FAQS

11. What are the key considerations for selecting a data format for a data lake?

 

411

AWS FAQS

12. How do you implement data governance in a multi-account AWS environment?

 

412

AWS FAQS

13. What is the difference between a star schema and a snowflake schema?

 

413

AWS FAQS

14. How would you design a real-time analytics solution for clickstream data?

 

414

AWS FAQS

15. What are the benefits of using a columnar data format?

 

415

AWS FAQS

16. How would you optimize Amazon Redshift performance?

 

416

AWS FAQS

17. Explain the role of AWS Lake Formation.

 

417

AWS FAQS

18. How do you approach data partitioning?

 

418

AWS FAQS

19. When would you use Amazon Redshift Serverless versus a provisioned Redshift cluster?

 

419

AWS FAQS

20. How would you design a data solution for a machine learning use case?

 

420

AZURE FAQS

1. How would you design a data lake on Azure? What services would you use?

 

421

AZURE FAQS

2. Explain the difference between Azure SQL Database and Azure SQL Data Warehouse (now Azure Synapse Analytics).

 

422

AZURE FAQS

3. How do you implement a modern data warehouse on Azure?

 

423

AZURE FAQS

4. What is the purpose of Azure Data Factory?

 

424

AZURE FAQS

5. How would you handle a continuously streaming data source on Azure?

 

425

AZURE FAQS

6. Explain the concept of the Medallion Architecture on Azure.

 

426

AZURE FAQS

7. How do you design for schema evolution in Azure Data Lake?

 

427

AZURE FAQS

8. What is the difference between Azure Databricks and Azure Synapse Analytics Spark Pools?

 

428

AZURE FAQS

9. How do you ensure data security and governance in Azure?

 

429

AZURE FAQS

10. How would you choose between Azure Cosmos DB and Azure SQL Database?

 

430

AZURE FAQS

11. How do you design a data model for a multi-tenant SaaS application on Azure Cosmos DB?

 

431

AZURE FAQS

12. What are the key considerations for a data model that needs to support both batch and real-time processing?

 

432

AZURE FAQS

13. How do you model data for a graph database use case on Azure?

 

433

AZURE FAQS

14. Explain the concept of a Star Schema and how it is implemented in Azure Synapse Analytics.

 

434

AZURE FAQS

15. How would you design a data model for an IoT application using Azure services?

 

435

AZURE FAQS

16. What is the purpose of a conformed dimension in a data model on Azure?

 

436

AZURE FAQS

17. How do you handle unstructured data modeling in a data lake on Azure?

 

437

AZURE FAQS

18. What is the difference between a hash distribution and a round-robin distribution in Azure Synapse Analytics?

 

438

AZURE FAQS

19. How would you design a data model for a customer 360-degree view on Azure?

 

439

AZURE FAQS

20. How would you model data for a data governance solution on Azure?

 

440

AZURE FAQS

20 More Azure Data Architect Interview Questions with Answers

 

441

AZURE FAQS

1. How would you design a data ingestion solution for a hybrid cloud environment using Azure?

 

442

AZURE FAQS

2. Explain how to manage a data lifecycle in Azure Data Lake Storage.

 

443

AZURE FAQS

3. What is the difference between a data lake and a data warehouse in the context of Azure?

 

444

AZURE FAQS

4. How would you design a real-time fraud detection solution on Azure?

 

445

AZURE FAQS

5. Describe how to implement a serverless data processing pipeline on Azure.

 

446

AZURE FAQS

6. What is the role of Azure Service Bus in a data architecture?

 

447

AZURE FAQS

7. How do you design for high availability and disaster recovery in an Azure data solution?

 

448

AZURE FAQS

8. What is the purpose of a data mart and how would you implement one on Azure?

 

449

AZURE FAQS

9. How do you ensure data quality and integrity in an Azure data pipeline?

 

450

AZURE FAQS

10. Explain the concept of data virtualization and how it can be used on Azure.

 

451

AZURE FAQS

11. How would you design a data model for a financial services application that requires strong transactional consistency?

 

452

AZURE FAQS

12. What are the key considerations for cost optimization in an Azure data architecture?

 

453

AZURE FAQS

13. How would you choose between Azure Data Factory and a custom Spark job on Azure Databricks?

 

454

AZURE FAQS

14. How do you model data for a data lakehouse architecture on Azure?

 

455

AZURE FAQS

15. Describe how to implement a security model for data in Azure Synapse Analytics.

 

456

AZURE FAQS

16. What is the role of Azure Purview in a data governance strategy?

 

457

AZURE FAQS

17. How do you design a data model for an event-driven architecture on Azure?

 

458

AZURE FAQS

18. What are the key differences in data modeling for Azure Cosmos DB's different APIs?

 

459

AZURE FAQS

19. How would you model data for a multi-tenant application using Azure SQL Database?

 

460

AZURE FAQS

20. How do you model data for a machine learning use case on Azure?

 

461

Data vault faqs

5) What is a Data Vault?

 

462

Data vault faqs

6) What are the different entities of the Data Vault?

 

463

Data vault faqs

7) What benefits does Data Vault bring in?

 

464

Data vault faqs

8) Does Data Vault support Big Data?

 

465

Data vault faqs

9) State the difference between Data Vault & Data Vault 2.0.

 

466

Data vault faqs

10) What are the Different ways to load data into the Data Vault?

 

467

Data vault faqs

11) Define the Business Key.

 

468

Data vault faqs

12) State the difference between type 1 and type 2 data change in the data loading context.

 

469

Data vault faqs

13)  What do you know about operational data sources?

 

470

Data vault faqs

14) Can you create multiple fact tables from a single database?

 

471

Data vault faqs

15) Can you name some of the top companies using Data Vault?

 

472

Data vault faqs

16) What makes Data Vault architecture unique compared to all other architectures? lity to accommodate any data changes.

 

473

Data vault faqs

17) What is the use of a staging area in a Data Vault?

 

474

Data vault faqs

18) Explain the primary key & its importance in the data model.

 

475

Data vault faqs

19) What is Slowly changing dimensions?

 

476

Data vault faqs

20) What is a Semantic Layer?

 

477

Data vault faqs

FREQUENTLY ASKED QUESTIONS ABOUT DATA VAULT

 

478

Data vault faqs

https://data-vault.com/what-is-data-vault/

 

479

Data vault faqs

What is Data Vault?

 

480

Data vault faqs

Where did Data Vault come from?

 

481

Data vault faqs

What are Hubs in Data Vault?

 

482

Data vault faqs

What are Satellites in Data Vault?

 

483

Data vault faqs

What are Links in Data Vault?

 

484

Data vault faqs

Is Data Vault scalable to work with big data?

 

485

Data vault faqs

Is Data Vault proven?

 

486

Data vault faqs

How do I migrate from an Inmon or Kimball solution to Data Vault?

 

487

Data vault faqs

What technologies work with Data Vault?

 

488

Data vault faqs

What is the difference between Data Vault and Data Vault 2.0?

 

489

Data vault faqs

What is Data Vault data modelling?

 

490

Data vault faqs

Are Data Vaults compatible with Star Schemas?

 

491

Data vault faqs

Who owns Data Vault?

 

492

Data vault faqs

Is Data Vault suitable for my business?

 

493

Data vault faqs

Is Data Vault free?

 

494

Data vault faqs

Do data lakes work with Data Vault?

 

495

Data vault faqs

https://climbtheladder.com/data-vault-interview-questions/

 

496

Data vault faqs

Data Vault Interview Questions and Answers

 

497

Data vault faqs

1. Explain the concept of Hubs, Links, and Satellites.

 

498

Data vault faqs

2. Write a SQL query to create a Hub table given a set of business keys.

 

499

Data vault faqs

3. Write a SQL query to create a Link table that connects two Hubs.

 

500

Data vault faqs

4. Explain the role of hash keys in Data Vault modeling.

 

501

Data vault faqs

5. Write a SQL query to create a Satellite table for a given Hub.

 

502

Data vault faqs

6. How do you manage slowly changing dimensions (SCD) in a Data Vault model?

 

503

Data vault faqs

7. Describe your approach to integrating real-time data.

 

504

Data vault faqs

9. How would you automate the loading and maintenance of a Data Vault model?

 

..

Data vault faqs

10. Compare and contrast Data Vault 1.0 and Data Vault 2.0.

 

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