Azure Data Lake Storage is also known as ADLS. ADLS Gen 2 is a powerful cloud-based storage solution built on top of Azure Blob Storage and it is used to store large amounts of data for big data analysis.
Azure Data Lake Storage service supports structured, semi-structured, and unstructured data. It provides a scalable, durable, and secure storage platform to protect your data, including encryption, access control, and auditing.
ADLS is also cost-effective way to store large amounts of data and can be Integration with Azure Active Directory (Azure AD) for single sign-on and role-based access control (RBAC). It can also be used in other Azure services, such as Azure Machine Learning and Azure Stream Analytics.
Azure Data Lake Storage Quiz Question and Answers
______ is build on top of Azure Blob Storage?
- Azure data lake store gen 1
- Azure data lake store gen 2
ADLS manages what form of data
- Structured
- Semi-structured
- Unstructured
- All of the options
___________ is a highly scalable, distributed and parallel system capable of storing diversified data from several diversified sources.
- Azure Data Lake Store
- Azure Data Factory
- Azure Databricks
Azure HDInsight clusters can be provisioned and configured to directly access data stored in Data Lake Storage Gen1.
- True
- False
ADLS account contains containers, which in turn has data in the form of blobs
- True
- False
_____ driver is enabled with all Hadoop environments to access data stored in Azure Data Lake Storage Gen2.
- Azure ML
- Azure blob file system
- Azure Data Factory
- Azure databricks
How may copies of the data does ADLS maintain for high availability of data provisioning.
- 1 copy of data
- 2 copies of data
- 3 copies of data
- 4 copies of data
_______ component is used to build various data analytic jobs services and execute them parallelly.
- Diversified storage
- HDInsight
- Analytics service
_______ instance is required to be created for log analytic visualizations that provide various analytical outcomes in a single dashboard?
- Azure data lake analytics
- Azure data lake store
- Log analytics workspace
- Azure Data Factory
Creating Azure Data Lake Storage Gen 1 using CLI which parameter ensures that the folder is to be created with the given name
- --directory
- --folder
- --file
In ADLS Schema of the data is required to be defined before data is loaded.
- True
- False
Account management / Authorization in Microsoft Azure is implemented by RBAC which is also a built in feature.
- True
- False
______ function writes the custom queries to bring the desired data-sets for the queries.
- Database
- Table value function
- Procedures
- Views
For data protection, ADLS Gen 1 uses ______ protocol to secure data over the network.
- SSL 1.0
- SSL 2.0
- TLS 1.1
- TLS 1.2
ADLS Gen1 provides which command line tool to copy data?
- AdlCopy
- Azure copy
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.
- False
- True
______ is not a build in Extractor in U-SQL.
- Extractors.Csv
- Extractors.Text
- Extractors.Xlsv
- Extractors.Tsv
ADLS Gen1 provides a command line tool, AdlCopy, to copy data from Azure Blob to ADLS and vice-versa. True or False
- True
- False
______ language is used to create a script that runs the job which query the data to generate output for analysis.
- SQL
- C#
- P-SQL
- U-SQL
_______ is an analytics job service that writes queries and extracts valuable insights from any scale of data
- Azure data lake analytics
- Azure SQL database
- Azure data lake store
- None of the options mentioned
Which of the following is not an operation performed by data lake store gen 1?
- Store
- Scripting queries
- Analyze
- Ingest
- Prepare
What is the purpose of data lake store?
- Optimized and dedicated storage for bigdata analytics workload
- General purpose object store for variety of storage scenarios
Which extractor parameter is used to specify column separator whose default value is comma?
- rowDelimeter
- skipFirstNRows
- silent
- delimeter
The standard RBAC role is
- Owner
- Contributor
- Reader
- All of the options
If you has not mentioned the –folder parameter while creating the storage account using cli, it creates _____ named folder at the root location?
- myfolder
- newfolder
- mynewfolder
- emptyfolder
From which menu of the azure data lake analytics you can explore the added data sources?
- Data Extractor
- Data explorer
- New Job
- None of the options
Key Capabilities of data lake store gen 1 include which of the following?
- Built for Hadoop
- Enterprise ready and highly available
- Unlimited storage
- All of the options
Data Storage and analytics jobs combined performed in which layer of the streamed data management?
- Data generation
- Storage (ans)
- Data processing
Organizing data into larger files than many small files decreases the performance of the data lake store.
- True
- False
______ is not a build in Extractor in U-SQL
- Extractors.Csv
- Extractors.Xlsv
- Extractors.Text
- Extractors.Tsv
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?
- 2.58 INR
- 2.45 INR
- 2.52 INR
- 3.00 INR
Azure data lake architecture include which of the below components?
- Diversified storage
- HDInsight
- Analytics service
- All of the options
Data Operations - Authentication in ADLS is based on
- Account access keys
- Azure active directory
- Shared access key
- All of the options menioned
_________ helps in creating service alerts and control the cost of Azure data lake implementation.
- Security mechanism
- Azure data lake analytics
- Log analytics
- None of the options mentioned
You can use AdlCopy to copy data from ADLS gen 1 to blob and from blob to ADLS gen 1. True or False?
- True
- False
_______ is the built-in outputter in U-SQL that provides outputting a rowset into tab separator value file
- Outputters.Text
- Outputters.Csv
- Outputters.Tsv
- None of the options
What are the permissions required to append a file that is located in a folder
- Not required any permission
- Read and Execute
- Write and Execute
- Read and Write
_______ object is used to encapsulate the code that performs certain tasks regularly?
- Table value function
- Table
- View
- Procedures
What is the file size limit imposed to be stored in ADLS?
- No limit
- 100TB
- 500TB
- 50GB
Key Capabilities of data lake store gen 2 include which of the following?
- Hadoop Compatibility access
- A superset of POSIX permissions
- Cost effective
- All of the options
What is the account type that needs to be selected while creating an azure data lake storage gen 2 instance?
- Storage gen 2
- StorageV2
- General Account
- StorageV1
Which of the following are data sources for azure data lake store?
- Log files
- Raw unstructured data
- Azure website
- Videos
- All of the options
Azure data lake store gen 2 uses which component to organize data files into a hierarchy of directories for efficient data access?
- Diversified storage
- Hadoop compatible access
- Hierarcial namespace
- None of the options mentioned
_________ is used for managing clusters after ingesting large volume of data clusters by extending various open sources such as hadoop, spark, pig, hive etc...
- HDInsight
- Diversified storage
- Analytics service
- All of the options mentioned
Which of the following features of storage account needs to be enabled for Azure Data Lake Store Gen2?
- Hierarchical namespace must be enabled
- Versioning must be enabled.
- High-performance data access must be enabled
- All of the options mentioned
What is required to provision azure data lake storage in an azure storage account?
- Hierarchical namespace
- Versioning
- High-performance data access
__________ massively scalable, secure data lake functionality built on azure blob storage.
- Azure Data Factory
- Azure Data Lake Store Gen2
- Azure Data Lake Store Gen1