Module 7

Question 1

Azure storage options are c____ b_____, se____ and sc_____

Answer 1

Cloud based, Secure and Scalable

Question 2

Azure Mitigates losing data due to unforeseen failure or interruption by

Answer 2

Automatic Backup and Recovery

Question 3

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

Answer 3

Replicate your data at multiple locations across the globe.

Question 4

Azure also supports data analysis on your

Answer 4

Data Consumption

Question 5

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

Answer 5

Video
Text
VHDs
Relational
NoSQL

Question 6

Virtual disks can store up to…

Answer 6

32TB of data in virtual disks.

This is significant when storing video or simulation data

Question 7

Storage Tiers allows you to…

Answer 7

Prioritise access to data based on Frequency of access.

Question 8

What is Structured Data

Answer 8

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

Question 9

What is Semi-Structured data?

Answer 9

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

Question 10

What is Unstructured data?

Answer 10

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

Question 11

What is Azure SQL Database

Answer 11

Relational DaaS, based on latest stable version of SQL Server

Question 12

What are some of the benefits of Azure SQL Database

Answer 12

High Performance,
Reliability,
Fully Managed

Question 13

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

Answer 13

Manage the Infrastructure

Question 14

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

Answer 14

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

Question 15

The Database Migration Assistant generates what…

Answer 15

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

Question 16

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

Answer 16

Just the Connection String in your App

Question 17

What is Azure Cosmos DB

Answer 17

Globally distributed database service supporting Schemaless data

Question 18

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

Answer 18

Constantly Changing data

Question 19

Azure Blob storage stores unstructured data and therefore

Answer 19

There are no restrictions on data types

Question 20

True or False Azure Blob Storage is Highly Scalable

Answer 20

True

Question 21

Apps work with blobs muck in the same way as…

Answer 21

Files on a disk

Question 22

Azure Blob Storage can support ___ of simultaneous uploads

Answer 22

1000s

Question 23

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…

Answer 23

Data for Backup, DR and Archive

Question 24

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

Answer 24

Direct to the browser

Question 25

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

Answer 25

8TB

Question 26

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

Answer 26

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

Question 27

Azure Files offers...

Answer 27

Full managed files shares in cloud accessible via SMB

Question 28

Azure Files allows what with regards to mounting

Answer 28

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

Question 29

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:

Answer 29

Share files world wide, diagnostic or App data

Question 30

What is Azure Queue Storage?

Answer 30

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

Question 31

What does Azure Queue storage allow you to do?

Answer 31

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

Question 32

When app components decouples they can...

Answer 32

Scale inderpendantly

Question 33

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.

Answer 33

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

Question 34

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

Answer 34

Component failure when multiple users access data at the same time

Question 35

Azure Disk Storage provides.

Answer 35

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

Question 36

How is data stored and accessed with Disk Storage in Azure

Answer 36

Data is stored persistently and accessed from VHD.

Question 37

What is meant by Disks being Managed or Unmanaged

Answer 37

``` Managed = Managed By Azure UnManaged = Manged by users ```

Question 38

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

Answer 38

Lift and Shift Apps that read/write to persistent disks

Question 39

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

Answer 39

True

Question 40

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?

Answer 40

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

Question 41

What are the different storage tiers for Blob storage

Answer 41

Hot, Cool. Archive

Question 42

What is meant by the Hot Storage tier

Answer 42

- HOT - Optimized for frequently accessed data

Question 43

What is meant by the cool storage tier.

Answer 43

- COOL - Optimized for infrequently accessed data stored for at least 30 days

Question 44

What is meant by the Archive storage tier

Answer 44

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

Question 45

What provides High Availability and Security for Azure Storage?

Answer 45

Encryption and Replication

Question 46

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

Answer 46

Azure Storage Service Encryption Client Side Encryption

Question 47

What does Azure Storage Service Encryption do?

Answer 47

Data is encrypted by Azure before storing and decrypted before retreival

Question 48

How does Client Side Encryption work

Answer 48

- Data encrypted by client libraries | - Azure Stores encrypted at rest state, decrypted before retrieval.

Question 49

When is the Replication type setup for Azure Storage

Answer 49

When Storage account is created

Question 50

What does Replication for Storage availability ensure.

Answer 50

Ensures Durability and Availability of data

Question 51

How can you protect against natural and local disasters

Answer 51

With Regional and Geographic replication

Question 52

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

Answer 52

- 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.

Question 53

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

Answer 53

- 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

Question 54

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

Answer 54

- 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

Question 55

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

Answer 55

- 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

Question 56

How does agility come into the Azure VS OnPrem for storage

Answer 56

- 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.