Az305

Question 1

In Key Vaults what are secrets used to store?

Answer 1

Tokens
Passwords
Certificates
API Keys

Question 2

In Key Vaults what are keys used to store?

Answer 2

Encryption keys

Question 3

In Key Vaults what are certificates used to store?

Answer 3

TSL/SSL Certificates

Question 4

Which App Service Plans are zone redundant?

Answer 4

Only premium V2 and V3 are redundant. P1v2 is cheaper than P1v3

Question 5

What is log shipping?

Answer 5

The process of automating the backup of transaction log files on a primary database server, and then restoring them onto a standby server. It is a feature of Microsoft’s SQL server, recommended when the RPO and RTO are more flexible or databases aren’t considered highly mission critical.

Question 6

What is the Lsv2 VM size good for?

Answer 6

Lsv2 are high throughput and IO VMs

Question 7

What is the F series VM size good for?

Answer 7

F are high in CPU to memory ratio VMs
E.g web servers

Question 8

What is the Esv3 VM size good for?

Answer 8

Esv3 are high memory to CPU VMs
E.g databases (not optimised for throughput and IO)

Question 9

What is the NCv2 VM size good for?

Answer 9

NCv2 are GPU based VMs

Question 10

What are the three migration phases for MS CAF for Azure?

Answer 10

Assess
Deploy
Release

Question 11

Features of Azure Synapse analytics

Answer 11

Allows for data transformation
Links data to Microsoft Power BI
Performs near real time log analysis

Question 12

What is business continuity?

Answer 12

Solutions are high availability and disaster recovery. The goal is to keep the business up and running with minimal or no interruption.

Question 13

What are the four main ways Always On availability groups, Always On failover cluster instances, log shipping can be used? (Availability features)

Answer 13

High availability
Disaster Recovery
Migrations and upgrades
Scaling out readable copies of one or more databases

Question 14

What are Availability groups?

Answer 14

Provide database level protection by sending each transaction of a database to another instance.
Recommended for lower RPO and RTO
Data movement between replicas can be synchronous or asynchronous
An AG has one fully read/write copy of the database that is on the primary replica, the secondary replica can’t receive transactions directly from end users or applications.

Question 15

What is Disaster recovery?

Answer 15

When your primary availability location experiences a catastrophic event like an earthquake or flood, the business must be prepared to have its systems come online elsewhere.

Question 16

What’s the difference between AGs and Distributed AGs

Answer 16

AGs(outside those with a cluster type of none) require all replicas are part of the same underlying cluster. Distributed AGs allows an AG to span AGs configured on different clusters.

Question 17

What does scaling up(horizontal) mean?

Answer 17

Make instance larger
+increases scalability
-does not increase resiliency
-does not enable live changes to scale
-limit to how much resource a service can effectively use

Question 18

What does scaling out(vertical) mean?

Answer 18

Add more instances
+increases scalability
+increases resiliency
+enables live changes to scale of service
-Requires service to support multiple instances