Editing AWS SSA Sample exam questions

* https://d1.awsstatic.com/training-and-certification/docs-sa-assoc/AWS-Certified-Solutions-Architect-Associate_Sample-Questions.pdf


==A customer relationship management (CRM) application runs on Amazon EC2 instances in multiple Availability Zones behind an Application Load Balancer. If one of these instances fails, what occurs?==
* A) The load balancer will stop sending requests to the failed instance.
* B) The load balancer will terminate the failed instance.
* C) The load balancer will automatically replace the failed instance.
* D) The load balancer will return 504 Gateway Timeout errors until the instance is replaced.

== A company needs to perform asynchronous processing, and has Amazon SQS as part of a decoupled architecture. The company wants to ensure that the number of empty responses from polling requests are kept to a minimum. What should a solutions architect do to ensure that empty responses are reduced?==
* A) Increase the maximum message retention period for the queue.
* B) Increase the maximum receives for the redrive policy for the queue.
* C) Increase the default visibility timeout for the queue.
* D) Increase the receive message wait time for the queue.

==A company currently stores data for on-premises applications on local drives. The chief technology
officer wants to reduce hardware costs by storing the data in Amazon S3 but does not want to make
modifications to the applications. To minimize latency, frequently accessed data should be available
locally. What is a reliable and durable solution for a solutions architect to implement that will reduce the cost of
local storage?==

* A) Deploy an SFTP client on a local server and transfer data to Amazon S3 using AWS Transfer for SFTP.
* B) Deploy an AWS Storage Gateway volume gateway configured in cached volume mode.
* C) Deploy an AWS DataSync agent on a local server and configure an S3 bucket as the destination.
* D) Deploy an AWS Storage Gateway volume gateway configured in stored volume mode.

== yo ==

* 4) A company runs a public-facing three-tier web application in a VPC across multiple Availability Zones.
Amazon EC2 instances for the application tier running in private subnets need to download software
patches from the internet. However, the instances cannot be directly accessible from the internet.
Which actions should be taken to allow the instances to download the needed patches? (Select TWO.)
:A) Configure a NAT gateway in a public subnet.
:B) Define a custom route table with a route to the NAT gateway for internet traffic and associate it with the
private subnets for the application tier.
:C) Assign Elastic IP addresses to the application instances.
:D) Define a custom route table with a route to the internet gateway for internet traffic and associate it with
the private subnets for the application tier.
:E) Configure a [[NAT]] instance in a [[private subnet]].

* 5) A solutions architect wants to design a solution to save costs for Amazon EC2 instances that do not
need to run during a 2-week company shutdown. The applications running on the instances store data in
instance memory (RAM) that must be present when the instances resume operation.
Which approach should the solutions architect recommend to shut down and resume the instances?
:A) Modify the application to store the data on instance store volumes. Reattach the volumes while restarting
them.
:B) Snapshot the instances before stopping them. Restore the snapshot after restarting the instances.
:C) Run the applications on instances enabled for hibernation. Hibernate the instances before the shutdown.
:D) Note the Availability Zone for each instance before stopping it. Restart the instances in the same
Availability Zones after the shutdown.

* 6) A company plans to run a monitoring application on an Amazon EC2 instance in a VPC. Connections
are made to the instance using its private IPv4 address. A solutions architect needs to design a solution
that will allow traffic to be quickly directed to a standby instance if the application fails and becomes
unreachable.
Which approach will meet these requirements?
:A) Deploy an Application Load Balancer configured with a listener for the private IP address and register the
primary instance with the load balancer. Upon failure, de-register the instance and register the secondary
instance.
:B) Configure a custom DHCP option set. Configure DHCP to assign the same private IP address to the
secondary instance when the primary instance fails.
:C) Attach a secondary elastic network interface (ENI) to the instance configured with the private IP address.
Move the ENI to the standby instance if the primary instance becomes unreachable.
:D) Associate an Elastic IP address with the network interface of the primary instance. Disassociate the
Elastic IP from the primary instance upon failure and associate it with a secondary instance.

== See also ==
* {{AWS certifications}}

[[Category:AWS]]