Browse SAA Questions
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Total: 100 questionsPage: 7 of 10
Question 61 of 100
A Solutions Architect plans to migrate NAT instances to NAT gateway. The Architect has NAT instances with scripts to manage high availability. What is the MOST efficient method to achieve similar high availability with NAT gateway?
ARemove source/destination check on NAT instances.
BLaunch a NAT Gateway in each Availability Zone
CUse a mix of NAT instances and NAT gateway
DAdd an ELB Application Load Balancer in front of NAT gateway
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Question 62 of 100
After launching an instance that you intend to serve as a NAT (Network Address Translation) device in a public subnet you modify your route tables to have the NAT device be the target of internet bound traffic of your private subnet. When you try and make an outbound connection to the Internet from an instance in the private subnet, you are not successful. Which of the following steps could resolve the issue?
AAttaching a second Elastic Network interface (ENI) to the NAT instance, and placing it in the private subnet
BAttaching an Elastic IP address to the instance in the private subnet
CAttaching a second Elastic Network Interface (ENI) to the instance in the private subnet, and placing it in the public subnet
DDisabling the Source/Destination Check attribute on the NAT instance
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Question 63 of 100
An administrator runs a highly available application in AWS. A file storage layer is needed that can share between instances and scale the platform more easily. The storage should also be POSIX compliant. Which AWS service can perform this action?
AAmazon EBS
BAmazon S3
CAmazon EFS
DAmazon EC2 Instance store
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Question 64 of 100
A Solutions Architect is designing a solution to monitor weather changes by the minute. The frontend application is hosted on Amazon EC2 instances. The backend must be scalable to an unlimited size, and data retrieval must occur with minimal latency. Which AWS service should the Architect use to store the data and achieve these requirements?
AAmazon S3
BAmazon DynamoDB
CAmazon RDS
DAmazon EBS
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Question 65 of 100
A Solutions Architect is designing a solution to monitor weather changes by the minute. The frontend application is hosted on Amazon EC2 instances. The backend must be scalable to an unlimited size, and data retrieval must occur with minimal latency. Which AWS service should the Architect use to store the data and achieve these requirements?
AAmazon S3
BAmazon DynamoDB
CAmazon RDS
DAmazon EBS
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Question 66 of 100
You are running a legacy application that has a hardcoded IP address in your application. How might you apply high availability to the instance running that application?
AAssign a public IP address to the EC2 instance, have a backup instance running. In the event of failure, move the Public IP from the primary instance to the backup instance.
BAssign an elastic IP address to the EC2 instance, have a backup instance running. In the event of failure, move the Elastic IP from the primary instance to the backup instance.
CUse ELB for load balancing and assign the IP address and use auto scaling to manage load
DEC2 instance cannot be configured with hardcoded IP address
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Question 67 of 100
A Solutions Architect is planning a new web application in an Amazon VPC. The customer has specified that the architecture for the new web application must include the capability of sharing session state among a highly available group of web servers. To fulfil this requirement, the Solutions Architect should
ADeliver session state as messages in the Amazon SQS queue.
BEnable session state on Amazon CloudFront.
CStore session state in Amazon ElastiCache
DProvide session state through Elastic Load Balancing sticky sessions
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Question 68 of 100Multiple Choice
A Solutions Architect has a multi-layer application running in Amazon VPC. The application has an ELB Classic Load Balancer as the front end in a public subnet, and an Amazon EC2-based reserve proxy that performs content-based routing to two backend Amazon EC2 instances hosted in a private subnet. The Architect sees tremendous traffic growth and is concerned that the reserve proxy and current backend setup will be insufficient. Which actions should the Architect take to achieve a cost-effective solution that ensures the application automatically scales to meet traffic demand? (select TWO)
AReplace the Amazon EC2 reserve proxy with an ELB internal Classic Load Balancer
BAdd Auto Scaling to the Amazon EC2 backend fleet.
CAdd Auto Scaling to the Amazon EC2 reserve proxy layer.
DUse t2 burstable instance types for the backend fleet.
EReplace both the frontend and reserve proxy layers with an ELB Application Load Balancer.
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Question 69 of 100
A Solutions Architect needs to design a centralized logging solution for a group of web applications running on Amazon EC2 instances. The solution requires minimal development effort due to budget constraints. Which of the following should the Architect recommend?
ACreate a crontab job script in each instance to push the logs regularly to Amazon S3
BInstall and configure Amazon CloudWatch Logs agent in the Amazon EC2
CEnable Amazon CloudWatch Events in the AWS Management Console.
DEnable AWS CloudTrail to map all API calls invoked by the application
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Question 70 of 100
You have a video transcoding application running on Amazon EC2. Each instance polls a queue to find out which video should be transcoded, and then runs a transcoding process. If this process is interrupted, the video will be transcoded by another instance based on the queuing system. You have a large backlog of videos, which need to be transcoded, and would like to reduce this backlog by adding more instances. You will need these instances only until the backlog is reduced. Which type of Amazon EC2 instances should you use to reduce the backlog in the most cost efficient way?
AReserved instances
BSpot instances
CDedicated instances
DOn-demand instances
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