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Read Azure Data Lake Storage Interview Questions and Answers on :

  • azure data lake tutorial
  • azure data lake documentation
  • azure data lake gen 2
  • azure data lake vs blob storage
  • azure data lake diagram
  • azure data lake vs data factory
  • azure data lake icon
  • azure data lake pricing

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Question#1 ______ is build on top of Azure Blob Storage.

i) Azure data lake store gen 1

ii) Azure data lake store gen 2

iii) None of the options mentioned

Answer- Azure data lake store gen 2

Question#2 How may copies of the data does ADLS maintain for high availability of data provisioning.

i) 1

ii) 2

iii) 3

iv) 4

Answer- 3

Question#3 While creating ADLS Gen 1 using CLI which parameter ensures that the folder is to be created with the given name.

i) –folder

ii) –file

iii) –directory

iv) None of the options

Answer- –folder

Question#4 ADLS manages what form of data.

i) Semi-structured

ii) Unstructured

iii) Structured

iv) All of the options

Answer- All of the options

Question#5 ______ function writes the custom queries to bring the desired data-sets for the queries.

i) Table value function

ii) Procedures

iii) Database

iv) Views

Answer- Table value function

Question#6 ______ language is used to create a script that runs the job which query the data to generate output for analysis.

i) P-SQL

ii) SQL

iii) C#

iv) U-SQL

Answer- U-SQL

Question#7 ______ is not a build in Extractor in U-SQL

i) Extractors.Tsv

ii) Extractors.Csv

iii) Extractors.Text

iv) Extractors.Xlsv

Answer- Extractors.Xlsv

Question#8 In ADLS Schema of the data is required to be defined before data is loaded

i) True

ii) False

Answer- False

Question#9 ADLS Gen1 provides a command line tool, AdlCopy, to copy data from Azure Blob to ADLS and vice-versa.

i) True

ii) False

Answer- False

Question#10 Account management / Authorization in microsoft Azure is implemented by RBAC which is also a built in feature.

i) True

ii) False

Answer- True

Question#11 You can enable access to only trusted clients by specifying an IP address or defining a range of IP addresses by setting up the firewall rules to cut down access to your data lake analytics at network level.

i) True

ii) False

Answer- True

Question#12 What is the purpose of data lake store?

i) Optimized and dedicated storage for bigdata analytics workload

ii) General purpose object store for variety of storage scenarios

Answer- Optimized and dedicated storage for bigdata analytics workload

Question#13 _______is an analytics job service that writes queries and extracts valuable insights from any scale of data.

i) Azure data lake store

ii) Azure SQL database

iii) Azure data lake analytics

iv) None of the options

Answer- Azure data lake analytics

Question#14 ADLS Gen1 provides which command line tool to copy data ?

i) AdlCopy

ii) Azure Data Factory

iii) Azure copy

iv) All of the options

Answer- AdlCopy

Question#15 Which extractor parameter is used to specify column separator whose default value is comma?

i) rowDelimeter

ii) skipFirstNRows

iii) silent

iv) delimeter

Answer- delimeter

Question#16 Which of the following is not an operation performed by data lake store gen 1?

i) ngest

ii) Prepare

iii) Analyze

iv) Scripting queries

v) Store

Answer- Scripting queries

Question#17 The standard RBAC role is

i) Contributor

ii) Owner

iii) Reader

iv) All of the options

Answer- All of the options

Question#18 If you has not mentioned the –folder parameter while creating the storage account using cli, it creates _____ named folder at the root location?

i) myfolder

ii) newfolder

iii) mynewfolder

iv) emptyfolder

Answer- mynewfolder

Question#19 Key Capabilities of data lake store gen 2 include which of the following?

i) Cost effective

ii) Hadoop Compatiblity access

iii) A superset of POSIX permissions

iv) All of the options

Answer- All of the options

Question#20 From which menu of the azure data lake analytics you can explore the added data sources?

i) Data Extractor

ii) Data explorer

iii) New Job

iv) None of the options

Answer- Data explorer

Question#21 What is the cost per GB that azure incurs in order to store first 100 TB of data in your data lake storage gen 1 account?

i) 3.00 INR

ii) 2.45 INR

iii) 2.52 INR

iv) 2.58 INR

Answer- 2.58 INR

Question#22 What are the permissions required to append a file that is located in a folder.

i) Not required any permission

ii) Write and Execute

iii) Read and Write

iv) Read and Execute

Answer- Write and Execute

Question#23 Azure data lake store gen 2 uses which component to organize data files into a hierarchy of directories for efficient data access?

i) Diversified storage

ii) Hadoop compatible access

iii) Hierarcial namespace

iv) None of the options

Answer- Hierarcial namespace

Question#24 _______ object is used to encapsulate the code that performs certain tasks regularly?

i) View

ii) Table value function

iii) Procedures

iv) Table

Answer- Procedures

Question#25 Data Operations – Authentication in ADLS is based on

i) Azure active directory

ii) Account access keys

iii) Shared access key

iv) All of the options

Answer- Azure active directory

Question#26 _________ is used for managing clusters after ingesting large volume of data clusters by extending various open sources such as hadoop, spark, pig, hive etc…

i) Analytics service

ii) HDInsight

iii) Diversified storage

iv) All of the options

Answer- HDInsight

Question#27 What is the account type that needs to be selected while creating an azure data lake storage gen 2 instance?

i) Storage gen 2

ii) General Account

iii) StorageV1

iv) StorageV2

Answer- StorageV2

Question#28 _________ helps in creating service alerts and control the cost of Azure data lake implementation.

i) Security mechanism

ii) Log analytics

iii) Azure data lake analytics

iv) None of the options

Answer- Log analytics

Question#29 Key Capabilities of data lake store gen 1 include which of the following?

i) Built for Hadoop

ii) Enterprise ready and highly available

iii) Unlimited storage

iv) All of the options

Answer- All of the options

Question#30 What is the file size limit imposed to be stored in ADLS ?

i) No limit

ii) 100TB

iii) 500TB

iv) 50GB

Answer- No limit

Question#31 Data Storage and analytics jobs combined performed in which layer of the streamed data management?

i) Data generation

ii) Storage

iii) Data processing

iv) None of the options

Answer- Storage

Question#32 Organizing data into larger files than many small files decreases the performance of the data lake store.

i) True

ii) False

Answer- False

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