Amazon Amazon Certifications BDS-C00 Questions & Answers

• Question 151:

  When you put objects in Amazon 53, what is the indication that an object was successfully stored?

  A. A HTTP 200 result code and MD5 checksum, taken together, indicate that the operation was successful

  B. A success code is inserted into the S3 object metadata

  C. Amazon S3 is engineered for 99.999999999% durability. Therefore there is no need to confirm that data was inserted.

  D. Each S3 account has a special bucket named_ s3_logs. Success codes are written to this bucket with a timestamp and checksum

  Correct Answer: A

• Question 152:

  In the context of MySQL, version numbers are organized as MySQL version = X.Y.Z. What does X denote here?

  A. release level

  B. minor version

  C. version number

  D. major version

  Correct Answer: D

• Question 153:

  You currently run your infrastructure on Amazon EC2 instances behind on Auto Scaling group. All logs for your application are currently written to ephemeral storage. Recently your company experienced a major bug in code that made it through testing and was ultimately deployed to your fleet. This bug triggered your Auto Scaling group to scale up and back down before you could successfully retrieve the logs off your server to better assist you in troubleshooting the bug.

  Which technique should you use to make sure you are able to review your logs after your instances have shut down?

  A. Configure the ephemeral policies on your Auto Scaling group to back up on terminate

  B. Configure your Auto Scaling policies to create a snapshot of all ephemeral storage on terminate

  C. Install the CloudWatch logs Agent on your AMI, and configure CloudWatch Logs Agent to stream your logs

  D. Install the CloudWatch monitoring agent on your AMI, and set up a new SNS alert for CloudWatch metrics that triggers the CloudWatch monitoring agent to backup all logs on the ephemeral drive

  E. Install the CloudWatch Logs Agent on your AMI. Update your Scaling policy to enable automated CloudWatch Log copy

  Correct Answer: C

• Question 154:

  You have been asked to handle a large data migration from multiple Amazon RDS MySQL instances to a DynamoDB table. You have been given a short amount of time to complete the data migration. What will allow you to complete this complex data processing workflow?

  A. Create an Amazon Kinesis data stream, pipe in all of the Amazon RDS data, and direct data toward DynamoDB table

  B. Write a script in you language of choice, install the script on an Amazon EC2 instance, and then use Auto Scaling groups to ensure that the latency of the mitigation pipelines never exceeds four seconds in any 15-minutes period.

  C. Write a bash script to run on your Amazon RDS instance that will export data into DynamoDB

  D. Create a data pipeline to export Amazon RDS data and import the data into DynamoDB

  Correct Answer: D

• Question 155:

  You can use _____ and _____ to help secure the instances in your VPC.

  A. security groups and multi-factor authentication

  B. security groups and 2-Factor authentication

  C. security groups and biometric authentication

  D. security groups and network ACLs

  Correct Answer: D

• Question 156:

  The Trusted Advisor service provides insight regarding which four categories of an AWS account?

  A. Security, fault tolerance, high availability, and connectivity

  B. Security, access control, high availability, and performance

  C. Performance, cost optimization, security, and fault tolerance

  D. Performance, cost optimization, access control, and connectivity

  Correct Answer: C

• Question 157:

  Which DNS name can only be resolved within Amazon EC2?

  A. Internal DNS name

  B. External DNS name

  C. Global DNS name

  D. Private DNS name

  Correct Answer: A

• Question 158:

  A user is planning to setup notifications on the RDS DB for a snapshot. Which of the below mentioned event categories is not supported by RDS for this snapshot source type?

  A. Backup

  B. Creation

  C. Deletion

  D. Restoration

  Correct Answer: A

• Question 159:

  Will I be charged if the DB instance is idle?

  A. No

  B. Yes

  C. Only is running in GovCloud

  D. Only if running in VPC

  Correct Answer: B

• Question 160:

  Which of the following are characteristics of Amazon VPC subnets? Choose 2 answers A. Each subnet maps to a single Availability Zone

  B. A CIDR block mask of /25 is the smallest range supported

  C. Instances in a private subnet can communicate with the internet only if they have an Elastic IP.

  D. By default, all subnets can route between each other, whether they are private or public

  E. Each subnet spans at least 2 Availability zones to provide a high-availability environment

  Correct Answer: AD