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AZ-900 Azure Fundamental Concepts > Module 2 Core Azure Services > Flashcards

Module 2 Core Azure Services Flashcards

1
Q

Enumerate Azure Common Storage Services

A
  1. Azure Blob Storage
  2. Azure Disk Storage
  3. Azure Files Storage
  4. Azure Blob Access Tiers
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2
Q

_________ provides disks for Azure virtual machines. Applications and other services can access and use these disks as needed, similar to how they would in on-premises scenarios. _________ allows data to be persistently stored and accessed from an attached virtual hard disk.

A

Disk Storage

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3
Q

_____________ is an object storage solution for the cloud. It can store massive amounts of data, such as text or binary data. ____________ is unstructured, meaning that there are no restrictions on the kinds of data it can hold. _________ can manage thousands of simultaneous uploads, massive amounts of video data, constantly growing log files, and can be reached from anywhere with an internet connection.

A

Azure Blob Storage

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4
Q

Advantage of Blob Storage over Disk Storage.

A

It does not require developers to think about or manage disks.

Data is uploaded as blobs, and Azure takes care of the physical storage needs.

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5
Q

Ideal use for Blob Storage

A
  1. Serving images or documents directly to a browser.
  2. Storing files for distributed access.
  3. Streaming video and audio
  4. Storing data for backup and restore, disaster recovery, and archiving
  5. Storing data for analysis by an on-premises or Azure-hosted service
  6. Storing up to 8 TB of data for virtual machines
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6
Q

_________ offers fully managed file shares in the cloud that are accessible via the industry standard Server Message Block and Network File System (preview) protocols.

A

Azure Files

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7
Q

Used to allow access to a private asset for a specific amount of time when using Azure Files

A

Shared Access Signature (SAS) token

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8
Q

Enumerate Azure’s blob access tiers

A
  1. Hot Access Tier
  2. Cool Access Tier
  3. Archive Access Tier
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9
Q

Blob Access Tier that is optimized for storing data that is accessed frequently (i.e. images for your website)

A

Hot Access Tier

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10
Q

Blob Access Tier that is optimized for data that is infrequently accessed and stored for at least ___ ____ (i.e. invoices for your customers)

A

Cool Access Tier ; 30 Days

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11
Q

Blob Access Tier that is appropriate for data that is rarely accessed and stored for at least ________, with flexible latency requirements (i.e. long-term backups)

A

Archive Access Tier ; 180 Days

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12
Q

True or False: All Blob Access Tiers can be set at the account level.

A

False.

Only hot and cool access tiers can be set at the account level. The archive access tier isn’t available at the account level.

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13
Q

True or False: Hot, cool, and archive tiers can be set at the blob level, during upload or after upload.

A

True

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14
Q

Data in the _________ can tolerate slightly lower availability, but still requires high durability, retrieval latency, and throughput characteristics similar to hot data. For _______, a slightly lower availability service-level agreement (SLA) and higher access costs compared to hot data are acceptable trade-offs for lower storage costs. (Blob Access Tiers)

A

Cool Access Tier

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15
Q

__________ stores data offline and offers the lowest storage costs, but also the highest costs to rehydrate and access data. (Blob Access Tiers)

A

Archive Storage

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16
Q

Enumerate Azure Database Services

A
  1. Azure Cosmos DB
  2. Azure SQL Database
  3. Azure SQL Managed Instance
  4. Azure Database for MySQL
  5. Azure Database for PostgreSQL
  6. Azure Synapse Analytics
  7. Azure HDInsight
  8. Azure Databricks
  9. Azure Data Lake Analytics
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17
Q

___________ is a globally distributed, multi-model database service. _________ provides comprehensive service level agreements for throughput, latency, availability, and consistency guarantees.

A

Azure Cosmos DB.

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18
Q

True or False: Azure Cosmos DB supports schema-less data, which lets you build highly responsive and “Always On” applications to support constantly changing data.

A

True

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19
Q

___________ is flexible. At the lowest level, _________ stores data in atom-record-sequence (ARS) format. The data is then abstracted and projected as an API, which you specify when you’re creating your database. This level of flexibility means that as you migrate your company’s databases to _________, your developers can stick with the API that they’re the most comfortable with.

A

Azure Cosmos DB

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20
Q

API choices for Azure Cosmos DB

A
  1. SQL
  2. MongoDB
  3. Cassandra
  4. Tables
  5. Gremlin
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21
Q

_____________ is a relational database based on the latest stable version of the Microsoft SQL Server database engine. _____________ is a high-performance, reliable, fully managed, and secure database. You can use it to build data-driven applications and websites in the programming language of your choice, without needing to manage infrastructure.

A

Azure SQL Database

22
Q

True or False: Azure SQL Database is an Infrastructure as a Service (IaaS) database engine.

A

False.
Azure SQL Database is a Platform as a Service (PaaS) database engine. It handles most of the database management functions, such as upgrading, patching, backups, and monitoring, without user involvement.

23
Q

Azure SQL Database provides ____% availability.

A

99.99

24
Q

You can migrate your existing SQL Server and MySQL databases with minimal downtime by using the ______________.

A

Azure Database Migration Service

25
Q

The _____________ can generate assessment reports that provide recommendations to help guide you through required changes prior to performing a migration. (Azure SQL Database)

A

Microsoft Data Migration Assistant

26
Q

What does LAMP stack stands for? (Azure SQL Database)

A

Linux
Apache
MySQL
PHP

27
Q

____________ is a relational database service in the cloud, and it’s based on the MySQL Community Edition database engine, versions 5.6, 5.7, and 8.0.

A

Azure Database for MySQL

28
Q

Percentage availability service level agreement for Azure Database for mySQL

A

99.99%

29
Q

True or False: With Azure Database for MySQL, you can use point-in-time restore to recover a server to an earlier state, as far back as 35 days.

A

True. 35 Days

30
Q

_____________ enables your database to transparently respond to rapidly changing resource requirements. You only pay for the resources you need, and only when you need them. (Azure Database for MySQL)

A

Dynamic scalability

31
Q

______________ is a relational database service in the cloud. The server software is based on the community version of the open-source PostgreSQL database engine. Your familiarity with tools and expertise with PostgreSQL is applicable when you’re using _________________

A

Azure Database for PostgreSQL

32
Q

One of the benefits of Azure Database for PostgreSQL is adjustable automatic backups and point-in-time restore for up to _________

A

35 days

33
Q

Deployment options for Azure Database for PostgreSQL

A
  1. Single Server

2. Hyperscale (Citus)

34
Q

Pricing Tiers for Single Server Deployment Option (Azure Database for PostgreSQL)

A
  1. Basic
  2. General Purpose
  3. Memory Optimized
35
Q

Deployment option for Azure Database for PostgreSQL that horizontally scales queries across multiple machines by using sharding. Its query engine parallelizes incoming SQL queries across these servers for faster responses on large datasets. It serves applications that require greater scale and performance, generally workloads that are approaching, or already exceed, 100 GB of data.

A

Hyperscale (Citus) deployment option

36
Q

True or False: The Hyperscale (Citus) deployment option supports multi-tenant applications, real-time operational analytics, and high throughput transactional workloads. Applications built for PostgreSQL can run distributed queries on Hyperscale (Citus) with standard connection libraries and minimal changes.

A

True

37
Q

_______________ is a scalable cloud data service that provides the broadest SQL Server database engine compatibility with all the benefits of a fully managed platform as a service.

A

Azure SQL Managed Instance

38
Q

True or False: Like Azure SQL Database, Azure SQL Managed Instance is an Infrastructure as a Service (IaaS) database engine.

A

False. Both Azure SQL Database and Azure SQL Managed Instance is a Platform as a Service (PaaS) database engine.

39
Q

SLA provided by Azure SQL Managed Instance

A

99.99% availability

40
Q

Azure SQL Managed Instance makes it easy to migrate your on-premises data on SQL Server to the cloud using the ______________ or native backup and restore.

A

Azure Database Migration Service (DMS)

41
Q

Migration Process Flow from SQL Server to Azure SQL Managed Instance

A

Discover -> Assess -> Migrate -> Cutover -> Optimize

42
Q

______________ allows customers to find, try, purchase, and provision applications and services from hundreds of leading service providers, which are
all certified to run on Azure.

A

Azure Marketplace

43
Q

Tailwind Traders uses the LAMP stack for several of its websites. Which option would be ideal for migration?

a. Azure Database for MySQL
b. Azure Cosmos DB
c. Azure SQL Database
d. Azure Database for PostgreSQL

A

Answer:
a. Azure Database for MySQL

Azure Database for MySQL is the logical choice for existing LAMP stack applications.

44
Q

Which Azure compute resource can be deployed to manage a set of identical virtual machines?

a. Virtual machine availability sets
b. Virtual machine scale sets
c. Virtual machine availability zones

A

Answer:
b. Virtual machine scale sets

Virtual machine scale sets let you deploy and manage a set of identical virtual machines.

45
Q

Which of the following services should be used when the primary concern is to perform work in response to an event (often via a REST command) that needs a response in a few seconds?

a. Azure Functions
b. Azure App Service
c. Azure Container Instances

A

Answer:
a. Azure Functions

Azure Functions is used when you need to perform work in response to an event (often via a REST request), timer, or message from another Azure service, and when that work can be completed quickly, within seconds or less.

46
Q

Your company has a team of remote workers that need to use Windows-based software to develop your company’s applications, but your team members are using various operating systems like MacOS, Linux, and Windows. Which Azure compute service would help resolve this scenario?

a. Azure App Service
b. Windows Virtual Desktop
c. Azure Container Instances

A

Answer:
b. Windows Virtual Desktop

Windows Virtual Desktop enables your team members to run Windows in the cloud, with access to the required applications for your company’s needs.

47
Q

What is the first step that you would take in order to share an image file as a blob in Azure Storage?

a. Create an Azure Storage container to store the image
b. Upload the image file and create a container
c. Use a Shared Access Signature (SAS) token to restrict access to the image.
d. Create an Azure Storage account

A

Answer:
d. Create an Azure Storage account

You must create an Azure Storage account before you can use any Azure Storage features.

48
Q

Which Azure Storage option is better for storing data for backup and restore, disaster recovery, and archiving?

a. Azure Blob Storage
b. Azure Files Storage
c. Azure Disk Storage

A

Answer:
a. Azure Blob Storage

Azure Blob Storage is your best option for storing disaster recovery files and archives

49
Q

Tailwind Traders wants to create a secure communication tunnel between its branch offices. Which of the following technologies can’t be used?

a. Point-to-site virtual private network
b. Implicit File Transfer Protocol (FTP) over Secure Sockets Layer (SSL)
c. Azure ExpressRoute
d. Site-to-site virtual private network

A

Answer:
b. Implicit FTP over SSL

FTP over SSL can’t be used to create a secure communication tunnel.

50
Q

Tailwind Traders wants to use Azure ExpressRoute to connect its on-premises network to the Microsoft cloud. Which of the following choices isn’t an ExpressRoute that Tailwind Traders can use?

a. Site-to-site virtual private network
b. Any-to-any connection
c. Point-to-point Ethernet connection
d. CloudExchange colocation

A

Answer:
a. Site-to-site virtual private network

A site-to-site virtual private network isn’t an ExpressRoute model.

51
Q

Which of the following options can you use to link virtual networks?

a. Network address translation
b. Multi-chassis link aggregation
c. Dynamic Host Control Protocol
d. Virtual network peering

A

Answer:
d. Virtual network peering

Virtual network peering can be used to link virtual networks.

52
Q

Which of the following options isn’t a benefit of ExpressRoute?

a. Redundant connectivity
b. Consistent network throughput
c. Encrypted network communication
d. Access to Microsoft cloud services

A

Answer
c. Encrypted network communication

Correct. ExpressRoute does provide private connectivity, but it isn’t encrypted.

AZ-900 Azure Fundamental Concepts (5 decks)

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