AWS Quest 3 Test

Question 1

Which of the following is not an RDS database offered?

Answer 1

MongoDB

Question 2

Which kind of database should be used to store unstructured data as key value pairs?

Answer 2

DynamoDB

Question 3

True or False: You have just as much control over an RDS instance as you have with an EC2 instance

Answer 3

false

Question 4

You are billed for RDS snapshots:

Answer 4

Incrementally, just like EBS snapshots

Question 5

How many copies of data does Aurora maintain to maximize availability and durability?

Answer 5

2 data copies across 3 availability zones = 6 copies

Question 6

What is the difference between Redshift and Elastic Map Reduce? (choose 2)

Answer 6

1. Redshift is intended for data warehousing and running complex SQL requests
2. EMR is intended for on demand big data processing workloads (YES)

Question 7

True or False: Redshift leader nodes coordinate parallel execution of plans with compute nodes and aggregate the results into a response

Answer 7

true

Question 8

Aurora is compatible with: (choose 2)

Answer 8

1. MySQL

2. PostgreSQL

Question 9

Which caching engine best supports more advanced data structures and a more rich feature set?

Answer 9

Redis

Question 10

Which of the following is an example of a 2nd level domain?

Answer 10

the “skillstorm” in www.skillstorm.com

Question 11

Which of the following would you use to direct traffic from a top level domain to a load balancer?

Answer 11

An ALIAS record

Question 12

Which routing policy should be used to route traffic based on the location of users and the location of the resources themselves?

Answer 12

Geoproximity Routing

Question 13

Which of the following routing policies will send traffic to a list of endpoints randomly, acting as an inexpensive load balancer?

Answer 13

Simple Routing

Question 14

If a business was using AWS for their videogame, and needed to direct traffic to servers that would provide the best user experience, which routing policy should be used?

Answer 14

Latency Routing

Question 15

What is the purpose of a root name server in the DNS process?

Answer 15

To find and direct traffic to the name server for the top level domain

Question 16

Which of the following routing policies should you use if you needed to route traffic to different endpoints in predefined proportions?

Answer 16

Weighted Routing

Question 17

True or False: Load balancers automatically get assigned a public IP address

Answer 17

false

Question 18

Which of the following load balancers operates at layer 7?

Answer 18

An application load balancer

Question 19

Which of the following load balancers can operate at layers 4 and 7?

Answer 19

An application load balancer

Question 20

True or False: New AWS accounts are able to launch EC2 classic instances

Answer 20

false

Question 21

If your load balancer responds with a 504 error, what does this mean?

Answer 21

The server behind the load balancer is likely having an issue

Question 22

If an EC2 instance needed to check the IP addresses of users that send requests that are routed through a load balancer, how would they be able to do it?

Answer 22

Check the request’s x-forwarded-for header

Question 23

Choose the most appropriate auto scaling option for the following scenario:

A retail business has an auto scaling group supporting their website. They typically receive consistent traffic until they decide to launch sales. When they do, they see a large increase of traffic to their website.

Answer 23

Manual scaling