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Q41. AWS Elastic Load Balancer supports SSL termination.
A. True. For specific availability zones only.
B. False
C. True. For specific regions only
D. True. For all regions
Answer: D
Explanation:
You can configure your load balancer in ELB (Elastic Load Balancing) to use a SSL certificate in order to improve your system security.The load balancer uses the certificate to terminate and then decrypt requests before sending them to the back-end instances. Elastic Load Balancing uses AWS Identity and Access Management (IAM) to upload your certificate to your load balancer.
Reference: http://docs.aws.amazon.com/EIasticLoadBaIancing/latest/DeveIoperGuide/US_SettingUpLoadBaIancerH TTPS.htmI
Q42. How long are the messages kept on an SQS queue by default?
A. If a message is not read, it is never deleted
B. 2 weeks
C. 1 day
D. 4 days
Answer: D
Explanation:
The SQS message retention period is configurable and can be set anywhere from 1 minute to 2 weeks. The default is 4 days and once the message retention limit is reached your messages will be automatically deleted. The option for longer message retention provides greater filexibility to allow for longer intervals between message production and consumption.
Reference: https://aws.amazon.com/sqs/faqs/
Q43. A user is enabling logging on a particular bucket. Which of the below mentioned options may be best suitable to allow access to the log bucket?
A. Create an IAM policy and allow log access
B. It is not possible to enable logging on the S3 bucket
C. Create an IAM Role which has access to the log bucket
D. Provide ACL for the logging group
Answer: D
Explanation:
The only recommended use case for the S3 bucket ACL is to grant the write permission to the Amazon S3 Log Delivery group to write access log objects to the user’s bucket.
Reference: http://docs.aws.amazon.com/AmazonS3/latest/dev/access-policy-alternatives-guidelines.html
Q44. In DynamoDB, the default table size is:
A. 5 GB
B. 1 GB
C. 10 GB
D. There is no table size
Answer: D
Explanation:
DynamoDB has seamless scalability with no table size limits and unlimited storage, so you shouIdn't be worried about managing storage on the host or to provisioning more drive, as your data requirement changes.
Reference: http://aws.amazon.com/dynamodb/
Q45. When a user is detaching an EBS volume from a running instance and attaching it to a new instance, which of the below mentioned options should be followed to avoid file system damage?
A. Unmount the volume first
B. Stop all the I/O of the volume before processing
C. Take a snapshot of the volume before detaching
D. Force Detach the volume to ensure that all the data stays intact
Answer: A
Explanation:
When a user is trying to detach an EBS volume, the user can either terminate the instance or explicitly remove the volume. It is a recommended practice to unmount the volume first to avoid any file system damage.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-detaching-volume.html
Q46. A user has created a MySQL RDS instance. Which of the below mentioned options is mandatory to configure while creating an instance?
A. MuIti AZ deployment setup
B. Automated backup window
C. Availability Zone
D. Maintenance window
Answer: A
Explanation:
When creating an RDS instance, the user needs to specify whether it is Nlulti AZ or not. If the user does not provide the value for the zone, the maintenance window or automated backup window, RDS will automatically select the value.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.lV|u|tiAZ.htmI
Q47. Can one instance be registered with two ELBs in the same region?
A. No
B. Yes, provided both ELBs have the same health check configuration
C. Yes, always
D. Yes, provided both ELBs are in the same AZ
Answer: C
Explanation:
Yes, it is possible to have one instance part of two separate ELBs, though both ELBs have different configurations. ELBs are never launched in specific zones.
Reference:
http://docs.aws.amazon.com/EIasticLoadBaIancing/latest/DeveIoperGuide/enable-disable-az.html
Q48. A user has developed an application which is required to send the data to a NoSQL database. The user wants to decouple the data sending such that the application keeps processing and sending data but
does not wait for an acknowledgement of DB. Which of the below mentioned applications helps in this scenario?
A. AWS Simple Notification Service
B. AWS Simple Workflow
C. AWS Simple Query Service
D. AWS Simple Queue Service
Answer: D
Explanation:
Amazon Simple Queue Service (SQS) is a fast, reliable, scalable, and fully managed message queuing service. SQS provides a simple and cost-effective way to decouple the components of an application. In this case, the user can use AWS SQS to send messages which are received from an application and sent to DB. The application can continue processing data without waiting for any acknowledgement from DB. The user can use SQS to transmit any volume of data without losing messages or requiring other services to always be available.
Reference: http://aws.amazon.com/sqs/