Az Cli

Question 1

How can I create an azure resource group?

Answer 1

Az group create –name –location

Question 2

How to create an azure vm

Answer 2

az vm create

• -name <>
• -resource-group <>
• -image &laquo_space;name image to restore ex: win16 datacenter&raquo_space;
• -size &laquo_space;sizing ex: Standard_DS2_v2&raquo_space;
• -location <>
• -admin-username <>
• -admin-password <>

Question 3

Is a vm reachable from the internet?

Answer 3

By default, Azure assigns a public IP address to your VM. You can configure a VM to be accessible from the Internet or only from the internal network

Question 4

How to check if vm is running?

Answer 4

az vm get-instance-view

• -name <>
• -resource-group <>
• -output table

Question 5

What is the custom Script Extension

Answer 5

The Custom Script Extension is an easy way to download and run scripts on your Azure VMs

Question 6

Custom script to install is

Answer 6

az vm extension set \

• -resource-group a6da4425-41cb-4ac8-95bd-1385151b034f \
• -vm-name myVM \
• -name CustomScriptExtension \
• -publisher Microsoft.Compute \
• -settings ‘{“fileUris”:[“https://raw.githubusercontent.com/MicrosoftDocs/mslearn-welcome-to-azure/master/configure-iis.ps1”]}’ \
• -protected-settings ‘{“commandToExecute”: “powershell -ExecutionPolicy Unrestricted -File configure-iis.ps1”}’

Question 7

How to open a port on a vm?

Answer 7

az vm open-port

• -name <>
• -resource-group <>
• -port <>

Question 8

How to show info about vm?

Answer 8

az vm show

• -name <>
• -resource-group <>
• -show-details
• -query [<>]
• -output tsv

Question 9

Difference between scaling up and scaling out

Answer 9

Scaling up is adding more memory,cpu, storage.
Scaling out(horizontal) is adding virtual machines

Cloud is elastic, you scare scale up and down, out and in

Question 10

How do I resize vm?

Answer 10

az vm resize

• -resource-group <>
• -name <>
• -size Standard_DS3_v2

Question 11

What are availability zones?

Answer 11

Availability Zones are physically separate datacenters within an Azure region.

Each Availability Zone is made up of one or more datacenters equipped with independent power, cooling, and networking. It is set up to be an isolation boundary. If one zone goes down, the other continues working.

Question 12

What is an availability set?

Answer 12

An availability set is a logical grouping of two or more VMs that ensure your application remains available during planned or unplanned maintenance.

Question 13

What are update domains?

Answer 13

Update domain assures that if one of the VMs is undergoing planned maintenance, the other VMs are available and not undergoing maintenance at the same time.
By default, 5 update domains are created.

Question 14

What are fault domains?

Answer 14

A fault domain assure that if there is a fault on a machine, the switch is made to a different vm in the domain. A fault domain is essentially a rack of servers. It provides the physical separation of your workload across different hardware in the datacenter.
By default, 2 fault domains are created.

Question 15

What are virtual machine scale sets?

Answer 15

Azure virtual machine scale sets let you create and manage a group of identical, load balanced VMs. This makes it possible to automatically upscale or downscale the number of VMs needed at the time.

Question 16

What is azure batch?

Answer 16

Azure Batch enables large-scale job scheduling and compute management with the ability to scale to tens, hundreds, or thousands of VMs.

When you’re ready to run a job, Batch starts a pool of compute virtual machines for you, installing applications and staging data, running jobs with as many tasks as you have, identifying failures and re-queuing work, and scaling down the pool as work completes.

Question 17

What is ACI?

Answer 17

Azure Container Instances is a paas service that allows the uploading of containers

Question 18

What is AKS?

Answer 18

Azure Kubernetes Service complete orchestration service(managing/interacting) for containers with distributed architectures with multiple containers.

Question 19

What is Serverless computing?

Answer 19

Azure takes care of managing the server infrastructure and allocation/deallocation of resources based on demand

You focus solely on the logic you need to execute and the trigger that is used to run your code. You configure your serverless apps to respond to events. This could be a REST endpoint, a periodic timer, or even a message received from another Azure service. The serverless app runs only when it’s triggered by an event.

Question 20

What storage tiers are available?

Answer 20

• Hot storage tier: optimized for storing data that is accessed frequently.
• Cool storage tier: optimized for data that is infrequently accessed and stored for at least 30 days.
• Archive storage tier: for data that is rarely accessed and stored for at least 180 days with flexible latency requirements

Question 21

What is SSE?

Answer 21

Storage Service Encryption :
It encrypts the data before storing it and decrypts the data before retrieving it. The encryption and decryption are transparent to the user.

Question 22

What is NSG?

Answer 22

A network security group, or NSG, allows or denies inbound network traffic to your Azure resources. Think of a network security group as a cloud-level firewall for your network.