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Q1. 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.
Answer: C
Explanation:
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.
Reference: http://media.amazonwebservices.com/AWS_Storage_Options.pdf
Q2. 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.
Answer: D
Explanation:
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).
Reference: http://docs.aws.amazon.com/elasticbeanstaIk/latest/dg/using-features.heaIthstatus.htmI
Q3. In DynamoDB, a secondary index is a data structure that contains a subset of attributes from a table, along with an alternate key to support operations.
A. None of the above
B. Both
C. Query
D. Scan
Answer: C
In DynamoDB, a secondary index is a data structure that contains a subset of attributes from a table, along with an alternate key to support Query operations.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Secondarylndexes.htmI
Q4. 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
C. Snapshot
D. Automated backup
Answer: D
Explanation:
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
Q5. A user is launching an AWS RDS instance with MySQL. The user wants to enable the Nlulti AZ feature. Which of the below mentioned parameters will not be allowed to configure by RDS?
A. Availability Zone
B. Region
C. DB subnet group
D. Database port
Answer: A
Explanation:
If the user is launching RDS with Multi AZ the user cannot provision the Availability Zone. RDS is launched automatically instead
Reference: https://console.aws.amazon.com/rds/
Q6. You have been given a scope to deploy some AWS infrastructure for a large orgAMsation. The requirements are that you will have a lot of EC2 instances but may need to add more when the average utilization of your Amazon EC2 fileet is high and conversely remove them when CPU utilization is low. Which AWS services would be best to use to accomplish this?
A. Amazon CIoudFront, Amazon CIoudWatch and Elastic Load Balancing.
B. Auto Scaling, Amazon CIoudWatch and AWS CIoudTraiI.
C. Auto Scaling, Amazon CIoudWatch and Elastic Load Balancing.
D. Auto Scaling, Amazon CIoudWatch and AWS Elastic Beanstalk
Answer: C
Explanation:
Auto Scaling enables you to follow the demand curve for your applications closely, reducing the need to manually provision Amazon EC2 capacity in advance. For example, you can set a condition to add new Amazon EC2 instances in increments to the Auto Scaling group when the average utilization of your Amazon EC2 fileet is high; and similarly, you can set a condition to remove instances in the same increments when CPU utilization is low. If you have predictable load changes, you can set a schedule through Auto Scaling to plan your scaling actMties. You can use Amazon CIoudWatch to send alarms to trigger scaling actMties and Elastic Load Balancing to help distribute traffic to your instances within Auto Scaling groups. Auto Scaling enables you to run your Amazon EC2 fileet at optimal utilization. Reference: http://aws.amazon.com/autoscaIing/
Q7. ExamKiIIer (with AWS account ID H1122223333) has created 50 IAM users for its orgAMzation’s employees. ExamKiIIer wants to make the AWS console login URL for all IAM users as: https:// examkiI|er.signin.aws.amazon.com/conso|e/. How can this be configured?
A. Create a bucket with the name ExamKiI|er and map it with the IAM alias
B. It is not possible to have capital letters as a part of the alias name
C. The user needs to use Route 53 to map the ExamKiIIer domain and IAM URL
D. For the AWS account, create an alias ExamKiIIer for the IAM login
Answer: B
Explanation:
If a user wants the URL of the AWS IAM sign-in page to have the company name instead of the AWS
account ID, he can create an alias for his AWS account ID. The alias must be unique across all Amazon Webservices products and contain only digits, lowercase letters, and hyphens.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccountAIias.html
Q8. True or False: In DynamoDB, Scan operations are always eventually consistent.
A. No, scan is like Query operation
B. Yes
C. No, scan is strongly consistent by default
D. No, you can optionally request strongly consistent scan.
Answer: B
Explanation:
In DynamoDB, Scan operations are always eventually consistent.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/APISummary.htmI