Caching

Question 1

TRUE or FALSE?
You can use CloudFront to front your Datacenter?

Answer 1

TRUE

Question 2

What is a better option than CloudFront for blocking individual countries?

Answer 2

WAF

Question 3

What are two database caching solutions offered by AWS?

Answer 3

Elasticache and DAX

Question 4

What are the two types of Elasticache?

Answer 4

Memcached and Redis

Question 5

How does Elasticache work?

Answer 5

By caching common database queries.

Question 6

What does Redis offer that Memcached doesn’t?

Answer 6

Can function as a standalone database (no-SQL)
Failover and multi-AZ support
Supports backups

Question 7

If you get an exam question asking for a no-SQL database and DynamoDB isn’t an option, go for…

Answer 7

Redis

Question 8

If the exam asks for a caching solutions that has backups, choose…

Answer 8

Redis

Question 9

TRUE or FALSE?
Memcached and Redis can front a relational database.

Answer 9

TRUE
They can front just about any DB, but excel when used with RDS

Question 10

TRUE or FALSE?
Elasticache and DAX are external caching solutions.

Answer 10

FALSE
They are internal

Question 11

TRUE or FALSE?
Redis can be a cache as well as a standalone database.

Answer 11

TRUE

Question 12

What is Global Accelerator?

Answer 12

A networking service that routes traffic through AWS global network infrastructure

Question 13

What kind of traffic is Global Accelerator meant for?

Answer 13

TCP and UDP

Question 14

What do the accelerators in Global Accelerator do?

Answer 14

They direct the user traffic to the optimal AWS endpoint.

Question 15

In Global Accelerator, what do the listener components do?

Answer 15

They process inbound connections.