Amazon SAA-C01 Online Practice Questions and Exam Preparation

Amazon SAA-C01 Online Questions & Answers

• Question 361:

  A client is migrating a legacy web application to the AWS Cloud. The current system uses an Oracle database as a relational database management system solution. Backups occur every night, and the data is stored on-premises. The Solutions Architect must automate the backups and identity a storage solution while keeping costs low.

  Which AWS service will meet these requirements?

  A. Amazon RDS
  B. Amazon RedShift
  C. Amazon DynamoDB Accelerator
  D. Amazon ElastiCache
  A. Amazon RDS

• Question 362:

  A Solutions Architect is designing a highly available web application on AWS. The data served on the website is dynamic and is pulled from Amazon DynamoDB. All users are geographically close to one another. How can the Solutions Architect make the application highly available?

  A. Host the website data on Amazon S3 and set permissions to enable public read-only access for users.
  B. Host the web server data on Amazon CloudFront and update the objects in the Cloudfront distribution when they change.
  C. Host the application on EC2 instances across multiple Availability Zones. Use an Auto Scaling group coupled with an Application Load Balancer.
  D. Host the application on EC2 instances in a single Availability Zone. Replicate the EC2 instances to a separate region, and use an Application Load Balancer for high availability.
  B. Host the web server data on Amazon CloudFront and update the objects in the Cloudfront distribution when they change.

• Question 363:

  Your department creates regular analytics reports from your company's log files. All log data is collected in Amazon S3 and processed by daily Amazon Elastic MapReduce (EMR) jobs that generate daily PDF reports and aggregated tables in

  CSV format for an Amazon Redshift data warehouse.

  Your CFO requests that you optimize the cost structure for this system.

  Which of the following alternatives will lower costs without compromising average performance of the system or data integrity for the raw data?

  A. Use reduced redundancy storage (RRS) for all data In S3. Use a combination of Spot Instances and Reserved Instances for Amazon EMR jobs. Use Reserved Instances for Amazon Redshift.
  B. Use reduced redundancy storage (RRS) for PDF and .csv data in S3. Add Spot Instances to EMR jobs. Use Spot Instances for Amazon Redshift.
  C. Use reduced redundancy storage (RRS) for PDF and .csv data In Amazon S3. Add Spot Instances to Amazon EMR jobs. Use Reserved Instances for Amazon Redshift.
  D. Use reduced redundancy storage (RRS) for all data in Amazon S3. Add Spot Instances to Amazon EMR jobs. Use Reserved Instances for Amazon Redshift.
  D. Use reduced redundancy storage (RRS) for all data in Amazon S3. Add Spot Instances to Amazon EMR jobs. Use Reserved Instances for Amazon Redshift.

• Question 364:

  In Amazon EIastiCache, the failure of a single cache node can have an impact on the availability of your application and the load on your back-end database while EIastiCache provisions a replacement for the failed cache node and it get repopulated. Which of the following is a solution to reduce this potential availability impact?

  A. Spread your memory and compute capacity over fewer number of cache nodes, each with smaller capacity.
  B. Spread your memory and compute capacity over a larger number of cache nodes, each with smaller capacity.
  C. Include fewer number of high capacity nodes.
  D. Include a larger number of cache nodes, each with high capacity.
  B. Spread your memory and compute capacity over a larger number of cache nodes, each with smaller capacity.

• Question 365:

  A company wants to analyze all of its sales information aggregated over the last 12 months. The company expects there to be over 10TB of data from multiple sources. What service should be used?

  A. Amazon DynamoDB
  B. Amazon Aurora MySQL
  C. Amazon RDS MySQL
  D. Amazon Redshift
  D. Amazon Redshift

• Question 366:

  An application runs on Amazon EC2 instances in multiple Availability Zones (AZs) behind an Application Load Balancer. The load balancer is in public subnets; the EC2 instances are in private subnets and must not be accessible from the internet. The EC2 instances must call external services on the internet. If one AZ becomes unavailable, the remaining EC2 instances must still be able to call the external services.

  How should these requirements be met?

  A. Create a NAT gateway attached to the VPC. Add a route to the gateway to each private subnet route table
  B. Configure an internet gateway. Add a route to the gateway to each private subnet route table.
  C. Create a NAT instance in the private subnet of each AZ. Update the route tables for each private subnet to direct internet-bound traffic to the NAT instance.
  D. Create a NAT gateway in each AZ. Update the route tables for each private subnet to direct internet-bound traffic to the NAT gateway.
  D. Create a NAT gateway in each AZ. Update the route tables for each private subnet to direct internet-bound traffic to the NAT gateway.

• Question 367:

  How can a user track memory usage in an EC2 instance?

  A. Call Amazon CloudWatch to retrieve the memory usage metric data that exists for the EC2 instance.
  B. Assign an IAM role to the EC2 instance with an IAM policy granting access to the desired metric.
  C. Use an instance type that supports memory usage reporting to a metric by default.
  D. Place an agent on the EC2 instance to push memory usage to an Amazon CloudWatch custom metric.
  D. Place an agent on the EC2 instance to push memory usage to an Amazon CloudWatch custom metric.

• Question 368:

  An organization must process a stream of large-volume hashtag data in real time and needs to run custom SQL queries on the data to get insights on certain tags. The organization needs this solution to be elastic and does not want to manage clusters.

  Which of the following AWS services meets these requirements?

  A. Amazon Elasticsearch Service
  B. Amazon Athena
  C. Amazon Redshift
  D. Amazon Kinesis Data Analytics
  B. Amazon Athena

• Question 369:

  A customer has a legacy application with a large amount of data. The files accessed by the application are approximately 10 GB each, but are rarely accessed. However, when files are accessed, they are retrieved sequentially. The customer

  is migrating the application to AWS and would like to use Amazon EC2 and Amazon EBS.

  What is the Least expensive EBS volume type for this use case?

  A. Cold HDD (sc1)
  B. Provisioned IOPS SSD (io1)
  C. General Purpose SSD (gp2)
  D. Throughput Optimized HDD (st1)
  D. Throughput Optimized HDD (st1)

• Question 370:

  

  Refer to the architecture diagram above of a batch processing solution using Simple Queue Service (SQS) to set up a message queue between EC2 instances which are used as batch processors Cloud Watch monitors the number of Job requests (queued messages) and an Auto Scaling group adds or deletes batch servers automatically based on parameters set in Cloud Watch alarms. You can use this architecture to implement which of the following features in a cost effective and efficient manner?

  A. Reduce the overall lime for executing jobs through parallel processing by allowing a busy EC2 instance that receives a message to pass it to the next instance in a daisy-chain setup.
  B. Implement fault tolerance against EC2 instance failure since messages would remain in SQS and worn can continue with recovery of EC2 instances implement fault tolerance against SQS failure by backing up messages to S3.
  C. Implement message passing between EC2 instances within a batch by exchanging messages through SQS.
  D. Coordinate number of EC2 instances with number of job requests automatically thus Improving cost effectiveness.
  E. Handle high priority jobs before lower priority jobs by assigning a priority metadata field to SQS messages.
  D. Coordinate number of EC2 instances with number of job requests automatically thus Improving cost effectiveness.