Amazon Amazon Certifications BDS-C00 Questions & Answers

• Question 71:

  It is advised that you watch the Amazon CloudWatch "_____" metric (available via the AWS Management Console or Amazon Cloud Watch APIs) carefully and recreate the Read Replica should it fall behind due to replication errors.

  A. Write Lag

  B. Read Replica

  C. Replica Lag

  D. Single Replica

  Correct Answer: C

• Question 72:

  You have been asked to use your department's existing continuous integration (CI) tool to test a three- tier web architecture defined in an AWS CloudFormation template. The tool already supports AWS APIs and can launch new AWS CloudFormation stacks after polling version control. The CI tool reports on the success of the AWS CloudFormation stack creation by using the DescribeStacks API to look for the CREATE_COMPLETE status.

  The architecture tiers defined in the template consist of:

  1.

  One load balancer

  2.

  Five Amazon EC2 instances running the web application

  3.

  One multi-AZ Amazon RDS instance

  How would you implement this? Choose 2 answers

  A. Define a WaitCondition and a WaitConditionhandle for the output of a output of a UserData command that does sanity checking of the application's post-install state

  B. Define a CustomResource and write a script that runs architecture-level integration tests through the load balancer to the application and database for the state of multiple tiers

  C. Define a WaitCondition and use a WaitConditionHandle that leverages the AWS SDK to run the DescribeStacks API call until the CREATE_COMPLETE status is returned

  D. Define a CustomResource that leverages the AWS SDK to run the DescribeStacks API call until the CREATE_COMPLETE status is returned

  E. Define a UserDataHandle for the output of a UserData command that does sanity checking of the application's post-install state and runs integration tests on the state of multiple tiers through load balancer to the application

  F. Define a UserDataHandle for the output of a CustomResource that does sanity checking of the application's post-install state

  Correct Answer: AF

• Question 73:

  What is web identity federation?

  A. Use of an identity provider like Google or Facebook to become an AWS IAM User.

  B. Use of an identity provider like Google or Facebook to exchange for temporary AWS security credentials.

  C. Use of AWS IAM User tokens to log in as a Google or Facebook user.

  D. Use of AWS STS Tokens to log in as a Google or Facebook user.

  Correct Answer: B

• Question 74:

  True or False: When you add a rule to a DB security group, you do not need to specify port number or protocol.

  A. Depends on the RDMS used

  B. TRUE

  C. FALSE

  Correct Answer: B

• Question 75:

  You have identified network throughput as a bottleneck on your m1.small EC2 instance when uploading data Into Amazon S3 In the same region.

  How do you remedy this situation?

  A. Add an additional ENI

  B. Change to a larger Instance

  C. Use DirectConnect between EC2 and S3

  D. Use EBS PIOPS on the local volume

  Correct Answer: B

• Question 76:

  What happens to the I/O operations while you take a database snapshot?

  A. I/O operations to the database are suspended for an hour while the backup is in progress.

  B. I/O operations to the database are sent to a Replica (if available) for a few minutes while the backup is in progress.

  C. I/O operations will be functioning normally

  D. I/O operations to the database are suspended for a few minutes while the backup is in progress.

  Correct Answer: D

• Question 77:

  The majority of your Infrastructure is on premises and you have a small footprint on AWS Your company has decided to roll out a new application that is heavily dependent on low latency connectivity to LOAP for authentication Your security policy requires minimal changes to the company's existing application user management processes. What option would you implement to successfully launch this application1?

  A. Create a second, independent LOAP server in AWS for your application to use for authentication

  B. Establish a VPN connection so your applications can authenticate against your existing on- premises LDAP servers

  C. Establish a VPN connection between your data center and AWS create a LDAP replica on AWS and configure your application to use the LDAP replica for authentication

  D. Create a second LDAP domain on AWS establish a VPN connection to establish a trust relationship between your new and existing domains and use the new domain for authentication

  Correct Answer: C

• Question 78:

  You are deploying an application to track GPS coordinates of delivery in the United States. Coordinates are transmitted from each delivery truck once every three seconds. You need to design an architecture that will enable realtime processing of these coordinates from multiple consumers.

  Which service should you use to implement data ingestion?

  A. Amazon Kinesis

  B. AWS Data Pipeline

  C. Amazon AppStream

  D. Amazon Simple Queue Service

  Correct Answer: A

• Question 79:

  A user has created an ELB with Auto Scaling. Which of the below mentioned offerings from ELB helps the user to stop sending new requests traffic from the load balancer to the EC2 instance when the instance is being deregistered while continuing in-flight requests?

  A. ELB sticky session

  B. ELB deregistration check

  C. ELB connection draining

  D. ELB auto registration Off

  Correct Answer: C

• Question 80:

  Does Amazon RDS for SQL Server currently support importing data into the msdb database?

  A. No

  B. Yes

  Correct Answer: A