AWS Certified Solutions Architect - Professional

AWS Certified Solutions Architect - Professional practice questions, page 40 of 41, with answer review and explanations.

Question 196

By default, temporary security credentials for an IAM user are valid for a maximum of 12 hours, but you can request a duration as long as _________ hours.

  1. 24
  2. 36
  3. 10
  4. 48

Question 197

What RAID method is used on the Cloud Block Storage back-end to implement a very high level of reliability and performance?

  1. RAID 1 (Mirror)
  2. RAID 5 (Blocks striped, distributed parity)
  3. RAID 10 (Blocks mirrored and striped)
  4. RAID 2 (Bit level striping)

Question 198

One of the AWS account owners faced a major challenge in June as his account was hacked and the hacker deleted all the data from his AWS account. This resulted in a major blow to the business. Which of the below mentioned steps would not have helped in preventing this action?

  1. Setup an MFA for each user as well as for the root account user.
  2. Take a backup of the critical data to offsite / on premise.
  3. Create an AMI and a snapshot of the data at regular intervals as well as keep a copy to separate regions.
  4. Do not share the AWS access and secret access keys with others as well do not store it inside programs, instead use IAM roles.

Question 199

With Amazon Elastic MapReduce (Amazon EMR) you can analyze and process vast amounts of data. The cluster is managed using an open-source framework called Hadoop. You have set up an application to run Hadoop jobs. The application reads data from DynamoDB and generates a temporary file of 100 TBs. The whole process runs for 30 minutes and the output of the job is stored to S3. Which of the below mentioned options is the most cost effective solution in this case?

  1. Use Spot Instances to run Hadoop jobs and configure them with EBS volumes for persistent data storage.
  2. Use Spot Instances to run Hadoop jobs and configure them with ethereal storage for output file storage.
  3. Use an on demand instance to run Hadoop jobs and configure them with EBS volumes for persistent storage.
  4. Use an on demand instance to run Hadoop jobs and configure them with ephemeral storage for output file storage.

Question 200

In Amazon SNS, to send push notifications to mobile devices using Amazon SNS and ADM, you need to obtain the following, except:

  1. Device token
  2. Client ID
  3. Registration ID
  4. Client secret