UDEMY AWS Certified Solutions Architect Associate Practice Test 5

Question 1

What is the limit of scope of VPC endpoints?

Ex., Global, Regional, AZ.

Answer 1

VPC endpoints are region-specific only and do not support inter-region communication.

Question 2

What is used to deliver HPC and enhanced networking for Windows Servers?

Answer 2

Elastic Network Adapter (ENA).

Question 3

What HPC feature is needed for OS-bypass capabilities?
Is it compatible with windows?

Answer 3

Elastic Fabric Adapter (EFA). NOT windows compatible

Question 4

How do you create your DNS zone apex to point to a load balancer?

Answer 4

Create an A record aliased to the load balancer DNS name.

ex., an alias record for tutorialsdojo.com that routes traffic to www.tutorialsdojo.com

Question 5

What is the failover behavior for running a single Aurora DB instance?

Answer 5

Aurora will attempt to create a new DB Instance in the same Availability Zone as the original instance and is done on a best-effort basis.

Question 6

Why is multiple API calls across different data sources considered poor design?

Answer 6

This can degrade application performance and user experience

Question 7

What is the best solution for easy retrieval of data from multiple sources with just a single call?

Answer 7

AppSync pipeline resolvers

Question 8

What is AppSync?

Answer 8

AWS AppSync is a managed service that makes it easy to build scalable APIs that connect applications to data

Question 9

What is AWS Batch?

Answer 9

AWS Batch is a powerful tool for developers, scientists, and engineers who need to run a large number of batch and ML computing jobs

Key words - CONCURRENT, PARALLEL

Question 10

Whats the best way to troubleshoot application performance or traffic patterns on your app running on an AWS service (ex., ECS Anywhere service)?

Answer 10

Amazon CloudWatch Application Insights can be used to analyze traffic patterns and simplify troubleshooting.

Question 11

Should you read every little detail in AWS questions or skim over assuming that AWS is not trying to trick you??

Answer 11

YES READ EVERY DETAIL IN A QUESTION AWS IS TRYNG TO TRICK YOU!!!!!

Question 12

Are you going to pass this certification and move on to a different job and continue to earn more $$ and do more and better things?

Answer 12

100%.

Question 13

What is SQS visibility timeout?

Answer 13

The visibility timeout is a period of time during which SQS prevents other consuming components from receiving and processing a message.

Question 14

what is the default visibility timeout?

Answer 14

30 seconds

Question 15

What is the best way to block or allow http/s traffic from specific countries?

Answer 15

Create a Web ACL rule in AWS WAF to block the specified country

Question 16

of messages in an SQS queue is growing due to I/O intensive processes on the compute. This is causing missed SLAs. How can you improve your EC2 performance and therefore improve SQS messages processed?

Answer 16

Use an ASG with target tracking based on the “ApproximateAgeOfOldestMessage” metric.

EC2s scale in/out based on SQS queue lengths

Question 17

How do you make sure CloudTrail event logs are encrypted?

Answer 17

By default, CloudTrail event log files are encrypted using Amazon S3 server-side encryption (SSE).

Question 18

Can passwords or secrets be stored in CloudHSM?

Answer 18

you only store keys in CloudHSM and not passwords.

Question 19

Can S3 manage receiving over 2000 PUT requests and 3500 GET requests per second at peak hour?

Answer 19

Amazon S3 will automatically manage performance at this scale.

Question 20

What is the API performance for S3?

Answer 20

at least 3,500 PUTS per second and 5,500 GETs per second

Question 21

What AWS service is best for OLAP apps ?

Answer 21

Redshift

Question 22

What kinds of applications are best for Redshift warehouse?

Answer 22

O
L
A
P

Applications🤪

Question 23

What AWS managed service is associated with GraphQL?
(When you hear GraphQL what service should you look for on a test question?)

Answer 23

AWS AppSync.

AWS AppSync is a serverless GraphQL and Pub/Sub API service that simplifies building modern web and mobile applications

Question 24

Is AWS Elastic Beanstalk a serverless solution?

Answer 24

No, beanstalk is NOT serverless. It uses EC2s.

Question 25

Is GW VPC endpoint CHEAPER than using a NAT gw?

Answer 25

GW VPC is cheaper than NAT gw.