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AZ900 > Module 7 > Flashcards

Module 7 Flashcards

1
Q

Azure storage options are c____ b_____, se____ and sc_____

A

Cloud based, Secure and Scalable

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2
Q

Azure Mitigates losing data due to unforeseen failure or interruption by

A

Automatic Backup and Recovery

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3
Q

Global replication allows you to protect against planned or unplanned events (such as Maintenance or Hardware failure) by allowing you to choose to….

A

Replicate your data at multiple locations across the globe.

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4
Q

Azure also supports data analysis on your

A

Data Consumption

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5
Q

Azure also supports encryption and multiple data types, some of which are

A 
Video
Text
VHDs
Relational
NoSQL
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6
Q

Virtual disks can store up to…

A

32TB of data in virtual disks.

This is significant when storing video or simulation data

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7
Q

Storage Tiers allows you to…

A

Prioritise access to data based on Frequency of access.

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8
Q

What is Structured Data

A

Data that adhears to a schema.

All of the data has the same fields or properties and can be stored in a database with lots of columns.

This straight forward, easy to access, enter, query and analyse.

All data follows the same format

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9
Q

What is Semi-Structured data?

A

Data that doesn’t neatly fit into tables. and uses Keys or Tags to provide hierarchy for data.

This is also known as non-relational or NoSQL data

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10
Q

What is Unstructured data?

A

Data with no designated structure, means there is no restriction on the data it can hold.

E.G. A blob can be a PDF, JPG, JSON or Video Content.

This is more prominent as business are trying to tap into new data streams

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11
Q

What is Azure SQL Database

A

Relational DaaS, based on latest stable version of SQL Server

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12
Q

What are some of the benefits of Azure SQL Database

A

High Performance,
Reliability,
Fully Managed

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13
Q

Azure SQL Database allows you to build data driven Websites and Apps in the language of your choice without needing to…

A

Manage the Infrastructure

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14
Q

You can Migrate existing SQL DBs to Azure SQL DB with minimal down time using…

A

The Database Migration Service, which uses the MS Database Migration Assistant

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15
Q

The Database Migration Assistant generates what…

A

Reports and Recommendations oto help guide you through changes prior to migration

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16
Q

What needs to change when migrating to Azure SQL DB from another SQL DB

A

Just the Connection String in your App

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17
Q

What is Azure Cosmos DB

A

Globally distributed database service supporting Schemaless data

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18
Q

Azure Cosmos DB can store/update data all around the world, it is highly responsive for always on applications to support

A

Constantly Changing data

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19
Q

Azure Blob storage stores unstructured data and therefore

A

There are no restrictions on data types

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20
Q

True or False Azure Blob Storage is Highly Scalable

A

True

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21
Q

Apps work with blobs muck in the same way as…

A

Files on a disk

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22
Q

Azure Blob Storage can support ___ of simultaneous uploads

A

1000s

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23
Q

Azure Blob storage supports massive video data, constantly growing log files world wide, however Azure Blob storage is not limited to common file formats,.

It is often used to store…

A

Data for Backup, DR and Archive

24
Q

Azure Blob Storage allows streaming of Video and Audio direct to….

A

Direct to the browser

25
Q

Azure Blob Storage is able to store up to ___ for VMs

A

8TB

26
Q

Azure Data Lake Storage is and allows you to perform…..

A

Analytics on data usages and prep reports.

Large Repositry storing unstructured and structured data

Azure Data lake storage combines scalability and cost benefits of object storage with reliability /performance of big data file system capabilities

27
Q

Azure Files offers…

A

Full managed files shares in cloud accessible via SMB

28
Q

Azure Files allows what with regards to mounting

A

Concurrent mounting in on-prem and cloud via deployments of Win/Linux/Mac

29
Q

Azure Files works as any other typical file share and any number of VMs or Roles can mount and access simultaneiously.

What is a Usage example:

A

Share files world wide, diagnostic or App data

30
Q

What is Azure Queue Storage?

A

Azure Queue Storage can store large numbers of messages for world wide access

31
Q

What does Azure Queue storage allow you to do?

A

Build flexible apps, with separate functions for durability over large workloads

32
Q

When app components decouples they can…

A

Scale inderpendantly

33
Q

Azure Queue Storage allows for async message queuing for comms between app components on cloud, desktop, on prem or mobile.

How does Azure Queue Storage typically work at a high level.

A

One or more sender components, one or more reciever components.

Senders add messages to queue, retrievers retrieve messages from front of queue for processing.

A typical usages would be to create a backlog of work to pass to different Azure Web services

34
Q

Azure Queue Storage allows you to distribute different work among different web servers/infrastructrue to manage traffic bursts.

This builds resilance against…

A

Component failure when multiple users access data at the same time

35
Q

Azure Disk Storage provides.

A

Disks to VMs, Apps and other services as they would on prem

36
Q

How is data stored and accessed with Disk Storage in Azure

A

Data is stored persistently and accessed from VHD.

37
Q

What is meant by Disks being Managed or Unmanaged

A 
Managed = Managed By Azure
UnManaged = Manged by users
38
Q

What would be a lift and shift example where Azure Disks storage is used

A

Lift and Shift Apps that read/write to persistent disks

39
Q

True or False: Data stored on Azure Disk Storage is not accessible outside of VM

A

True

40
Q

Disks come in different sizes and performance levels.

What would you use for Critical and Less Critical workloads?
What is the industry leading annualised failure rate?

A
  • SSD or HDD for less critical
  • Premium SSD for mission critical
  • Consistently delivered enterprise grade durability with 0% annualised failure rate - Industry leading
41
Q

What are the different storage tiers for Blob storage

A

Hot, Cool. Archive

42
Q

What is meant by the Hot Storage tier

A
  • HOT - Optimized for frequently accessed data
43
Q

What is meant by the cool storage tier.

A
  • COOL - Optimized for infrequently accessed data stored for at least 30 days
44
Q

What is meant by the Archive storage tier

A
  • ARCHIVE - Rarely accessed data stored for at least 180 days with flexible latency requirements.
45
Q

What provides High Availability and Security for Azure Storage?

A

Encryption and Replication

46
Q

There are two encryption models for Azure Storage, what are these?

A

Azure Storage Service Encryption

Client Side Encryption

47
Q

What does Azure Storage Service Encryption do?

A

Data is encrypted by Azure before storing and decrypted before retreival

48
Q

How does Client Side Encryption work

A
  • Data encrypted by client libraries

- Azure Stores encrypted at rest state, decrypted before retrieval.

49
Q

When is the Replication type setup for Azure Storage

A

When Storage account is created

50
Q

What does Replication for Storage availability ensure.

A

Ensures Durability and Availability of data

51
Q

How can you protect against natural and local disasters

A

With Regional and Geographic replication

52
Q

When comparing On-prem vs Azure Storage, what are some of the downsides of On Prem with regards to cost effectiveness

A
  • On prem requires dedicated H/W to be purchased/configured and maintained with significant upfront cost (CapEx)
  • Change in requirements can require new H/W Investment
  • H/W needs to be able to handle peak demand so may sit idle during off peak.
53
Q

When comparing On prem to Azure Storage what are some of the advantages to Azure, with regards to cost effectiveness?

A
  • AZURE has PAYG pricing model appealing as OpEx
  • Scale up or out as demand increases, scale back when lower demand
  • Only pay for services as you use them
54
Q

What are some of the points around reliability for On-Prem and Azure with regards to storage

A
  • On Prem requires stratergies for Backup/DR/Load balancing - this can be challenging and expensive as often requires dedicated H/W and Personnel
  • AZURE - Backup/DR/Load balancing and data replication provided as services to ensure data safety and HA
55
Q

When requiring various storage types, what are some of the points to consider in the Azure VS on Prem debate

A
  • On Prem requires numerous H/W + Admin tools for each storage type
  • Azure Variety of storage types incl: Distributed access, tiered storage, possible to intergrate a combination providing better storage for each part of your solution
56
Q

How does agility come into the Azure VS OnPrem for storage

A
  • On prem = changes may mean provisioning new H/W which can be time consuming and expensive
  • AZURE - Flexible to create services in minutes, change storage backends without significant H/W investment.

AZ900 (12 decks)

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