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AWS Certified SysOps Administrator - Associate Questions and Answers

Question 1

A company has deployed a NAT instance to allow web servers to obtain software updates from the internet. There latency on the NAT instance as the network grows. A SysOps Administrator needs to reduce latency on the instance in a manner that a efficient, cost effective, and allow for scaling with future demand.

Which action should be taken to accomplish this?

Options:

A.

Add a second NAT instance and place both instance behind a load balancer.

B.

Convert the NAT instance to a larger instance size.

C.

Replace the NAT instance with NAT gateway.

D.

Replace the NAT instance with a virtual private gateway.

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Question 2

A SysOps Administrator created an AWS CloudFormation template for the first time. The stack failed with a status of ROLLBACK_COMPLETE. The Administrator identified and resolved the template issue causing the failure.

How should the Administrator continue with the stack deployment?

Options:

A.

Delete the failed stack and create a new stack.

B.

Execute a change set on the failed stack.

C.

Perform an update-stack action on the failed stack.

D.

Run a validate-template command.

Question 3

A company is using AWS Storage Gateway to create block storage volumes and mount them as Internet Small Computer Systems Interlace (iSCSI) devices from on-premise! servers As the Storage Gateway has taken on several new projects some of the Development teams report that the performance of the iSCSI drives has degraded. When checking the Amazon CloudWatch metrics a SysOps Administrator notices that the cachePercentUsed metric is below 60% and the cachePercentUsed metric is above 90%.

What steps should the Administrator take to increase Storage Gateway performance?

Options:

A.

Change the default block size for the Storage Gateway from 64 KB to 128 KB 256 KB or 512 KB to improve I/O performance

B.

Create a larger disk for the cached volume. In the AWS Management Console. edit the local disks then select the new disk as the cached volume

C.

Ensure that the physical disks for the Storage Gateway are in a RAID 1 configuration to allow higher throughput

D.

Take point in time snapshots of all the volumes in Storage Gateway flush the cache completely then restore the volumes from the clean snapshots