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Q81. When should a user try to Force Detach an EBS volume?
A. If the volume is stuck in a detaching state
B. If the volume is not accessible from the instance
C. If the volume is not unmounted and the user still wants to detach
D. If the volume is a root volume
If an EBS volume stays in the detaching state, the user can force the detachment by clicking Force Detach. Forcing the detachment can lead to either data loss or a corrupted file system. The user should use this option only as a last resort to detach a volume from a failed instance or if he is detaching a volume with the intention of deleting it.
Q82. In relation to Amazon SQS, how can you ensure that messages are delivered in order?
A. Increase the size of your queue
B. Send them with a timestamp
C. Give each message a unique id.
D. AWS cannot guarantee that you will receive messages in the exact order you sent them
Amazon SQS makes a best effort to preserve order in messages, but due to the distributed nature of the queue, AWS cannot guarantee that you will receive messages in the exact order you sent them. You typically place sequencing information or timestamps in your messages so that you can reorder them upon receipt.
Q83. When AutoScaIing is launching a new instance based on condition, which of the below mentioned policies will it follow?
A. Based on the criteria defined with cross zone Load balancing
B. Launch an instance which has the highest load distribution
C. Launch an instance in the AZ with the fewest instances
D. Launch an instance in the AZ which has the highest instances
AutoScaIing attempts to distribute instances evenly between the Availability Zones that are enabled for the userâs AutoScaIing group. Auto Scaling does this by attempting to launch new instances in the Availability Zone with the fewest instances.
Q84. When you use the AWS Elastic Beanstalk console to deploy a new application .
A. youâII need to upload each file separately
B. youâII need to create each file and path
C. youâII need to upload a source bundle
D. youâII need to create each file
When you use the AWS Elastic Beanstalk console to deploy a new application or an application version, youâII need to upload a source bundle.
Q85. You have a number of image files to encode. In an Amazon SQS worker queue, you create an Amazon SQS message for each file specifying the command (jpeg-encode) and the location of the file in Amazon S3. Which of the following statements best describes the functionality of Amazon SQS?
A. Amazon SQS is for single-threaded sending or receMng speeds.
B. Amazon SQS is a non-distributed queuing system.
C. Amazon SQS is a distributed queuing system that is optimized for horizontal scalability, not for single-threaded sending or receMng speeds.
D. Amazon SQS is a distributed queuing system that is optimized for vertical scalability and for single-threaded sending or receMng speeds.
Amazon SQS is a distributed queuing system that is optimized for horizontal scalability, not for
single-threaded sending or receMng speeds. A single client can send or receive Amazon SQS messages at a rate of about 5 to 50 messages per second. Higher receive performance can be achieved by requesting multiple messages (up to 10) in a single call. It may take several seconds before a message that has been to a queue is available to be received.
Q86. AWS Elastic Beanstalk will change the health status of a web server environment tier to gray color when:
A. AWS Elastic Beanstalk detects other problems with the environment that are known to make the application unavailable
B. Your application hasn't responded to the application health check URL within the last one hour.
C. Your application hasn't responded to the application health check URL within the last five minutes.
D. Your appIication's health status is unknown because status is reported when the application is not in the ready state.
AWS Elastic Beanstalk will change the health status of a web server environment tier to gray color when your appIication's health status is unknown (because status is reported when the application is not in the ready state).
Q87. Can a user associate and use his own DNS with ELB instead ofthe DNS provided by AWS ELB?
A. Yes, by creating a CNAME with the existing domain name provider
B. Yes, by configuring DNS in the AWS Console
D. Yes, only through Route 53 by mapping ELB and DNS
The AWS ELB allows mapping a custom domain name with ELB. The user can map ELB with DNS in two ways: 1) By creating CNAME with the existing domain name service provider or 2) By creating a record with Route 53.
Q88. A user has launched a MySQL RDS. The user wants to plan for the DR and automate the snapshot. Which of the below mentioned functionality offers this option with RDS?
A. Copy snapshot
B. Automated synchronization
D. Automated backup
Amazon RDS provides two different methods for backing up and restoring the Amazon DB instances: automated backups and DB snapshots. Automated backups automatically back up the DB instance during a specific, user-definable backup window, and keep the backups for a limited, user-specified period of time.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonR DSInstances.htmI
Q89. A user has attached one RDS security group with 5 RDS instances. The user has changed the ingress rule for the security group. What will be the initial status of the ingress rule?
D. It is not possible to assign a single group to multiple DB instances
When the user makes any changes to the RDS security group the rule status will be authorizing for some time until the changes are applied to all instances that the group is connected with. Once the changes are propagated the rule status will change to authorized.
Q90. Which one of the following operations is NOT a DynamoDB operation?
In DynamoDB, Deleteltem deletes a single item in a table by primary key, but BatchDeIeteItem doesnât exist.