AWS Certified Solutions Architect – Associate Questions and Answers (Dumps and Practice Questions)

Question : In order to optimize performance for a compute cluster that requires low inter-node latency, which of the following feature should you use?

1. Multiple Availability Zones
2. AWS Direct Connect
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4. Placement Groups
5. VPC private subnets

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Explanation: A placement group is a logical grouping of instances within a single Availability Zone. Using placement groups enables applications
to participate in a low-latency, 10 Gbps network. Placement groups are recommended for applications that benefit from low network latency, high network
throughput, or both. To provide the lowest latency, and the highest packet-per-second network performance for your placement group, choose an instance type
that supports enhanced networking. For more information, see Enhanced Networking.
First, you create a placement group and then you launch multiple instances into the placement group. We recommend that you launch the number of instances
that you need in the placement group in a single launch request and that you use the same instance type for all instances in the placement group. If you try
to add more instances to the placement group later, or if you try to launch more than one instance type in the placement group, you increase your chances of
getting an insufficient capacity error.
If you stop an instance in a placement group and then start it again, it still runs in the placement group. However, the start fails if there isn't enough
capacity for the instance.
If you receive a capacity error when launching an instance in a placement group, stop and restart the instances in the placement group, and then try the
launch again.






Question : You have an application running on an Amazon Elastic Compute Cloud instance, that
uploads 5 GB video objects to Amazon Simple Storage Service (S3). Video uploads are
taking longer than expected, resulting in poor application performance. Which method will
help improve performance of your application?

1. Enable enhanced networking
2. Use Amazon S3 multipart upload
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4. Use Amazon Elastic Block Store Provisioned IOPs and use an Amazon EBS-optimized instance
Ans : 2




Question : For which of the following use cases are Simple Workflow Service (SWF) and Amazon EC an appropriate solution? Choose answers
A. Using as an endpoint to collect thousands of data points per hour from a distributed fleet of sensors
B. Managing a multi-step and multi-decision checkout process of an e-commerce website
C. Orchestrating the execution of distributed and auditable business processes
D. Using as an SNS (Simple Notification Service) endpoint to trigger execution of video transcoding jobs
E. Using as a distributed session store for your web application

1. A,B
2. B,C
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4. D,E

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Question : Which of the following are characteristics of a reserved instance? Choose answers
A. It can be migrated across Availability Zones
B. It is specific to an Amazon Machine Image (AMI)
C. It can be applied to instances launched by Auto Scaling
D. It is specific to an instance Type
E. It can be used to lower Total Cost of Ownership (TCO) of a system



1. A,C,E
2. B,C,E
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4. C,D,E

Ans : 1
Exp : Q: Can I reassign my RI from one instance family (e.g., c1.xlarge) to another (e.g., m1.large)?
No. An RI is associated with a specific instance family for the duration of the RI term; however, you can change from one instance type (e.g., c3.large) to
another (e.g., c3.xlarge) in the same family, if it is a Linux/UNIX RI.
Hence Option D is out.
The only difference between a Reserved instance and a regular instance is the billing, All other features such as AutoScaling and AMIs remain the same. It
is important that you factor the billing aspect of Reserved Instance's in to your deployment design as you do not want to have paid Reserved Instances not
in use as you have already paid for them upfront.
Hence option B is out, and C is correct.




Question : In AWS, which security aspects are the customer's responsibility? Choose answers
A. Security Group and ACL (Access Control List) settings
B. Decommissioning storage devices
C. Patch management on the EC2 instance's operating system
D. Life-cycle management of IAM credentials
E. Controlling physical access to compute resources
F. Encryption of EBS (Elastic Block Storage) volumes




1. A,C,D,F
2. B,D,E,F
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4. B,C,D,E

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Refer : https://aws.amazon.com/compliance/shared-responsibility-model/

Related Questions

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Question :
A route table in VPC can be associated with multiple subnets. However, a subnet can be associated with only ______ route table(s).


1. 4
2. 3
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4. 1



Question :
What type of S3 Access Control supports AWS Account-Level Control as well as User-Level control?

1. All of the three answers above
2. ACLs
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4. Bucket Policies



Question :
What are the permission types that can be used within IAM, to control the access your AWS infrastructure?

1. Service-based
2. User-based and Product-based
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4. User-based and Resource-based


Question :
Availability Zones (a.k.a AZ) within a region might have a different mapping 'AZ id - AZ physical location', for each user.
Therefore the Availability Zone 'us-east-1a' of the user A, might not refer to the same physical location that
the Availability Zone 'us-east-1a' (same ID) for the User B.



1. True
2. False
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4. You can ask to Amazon a unique identifier when you create the instance


Question :
An instance running a webserver is launched in a VPC subnet. A security group and a NACL are
configured to allow inbound port 80. What should be done to make web server accessible by everyone?

1. Outbound Port 80 rule should be enabled on security group
2. Outbound Port 80 rule should be enabled on both security group and NACL
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4. All ports both inbound and outbound should be enabled on security group and NACL


Question :
Is it possible to get a history of all EC2 API calls made on your account for security analysis and operational troubleshooting purposes?


1. No, Just VPC API calls are available
2. No, Amazon cannot store all history of all EC2 API calls
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4. Yes, by default history is logged