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Q31. In regard to DynamoDB, can I modify the index once it is created?
A. Yes, if it is a primary hash key index
B. Yes, if it is a Global secondary index
C. No
D. Yes, if it is a local secondary index
Answer: C
Explanation:
Currently, in DynamoDB, an index cannot be modified once it is created. Reference: http://aws.amazon.com/dynamodb/faqs/#security_anchor
Q32. 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
Q33. An orgAMzation has 10000 employees. The orgAMzation wants to give restricted AWS access to each employee. How can the orgAMzation achieve this?
A. Create an IAM user for each employee and make them a part of the group
B. It is not recommended to support 10000 users with IAM
C. Use STS and create the users’ run time
D. Use Identity federation with SSO
Answer: D
Explanation:
Identity federation enables users from an existing directory to access resources within your AWS account,
making it easier to manage your users by maintaining their identities in a single place. In this case, the federated user is the only solution since AWS does not allow creating more than 5000 IAM users. Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/LimitationsOnEntities.html
Q34. In regard to DynamoDB, what is the Global secondary index?
A. An index with a hash and range key that can be different from those on the table.
B. An index that has the same range key as the table, but a different hash key
C. An index that has the same hash key and range key as the table
D. An index that has the same hash key as the table, but a different range key
Answer: A
Explanation:
Global secondary index - an index with a hash and range key that can be different from those on the table.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModel.html
Q35. In regard to DynamoDB, which of the following statements is correct?
A. An Item should have at least two value sets, a primary key and another attribute.
B. An Item can have more than one attributes.
C. A primary key should be single-valued.
D. An attribute can have one or several other attributes.
Answer: B
Explanation:
In Amazon DynamoDB, a database is a collection of tables. A table is a collection of items and each item
is a collection of attributes.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModeI.html
Q36. 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
Answer: C
Explanation:
AutoScaIing attempts to distribute instances evenly between the Availability Zones that are enabled for the user’s AutoScaIing group. Auto Scaling does this by attempting to launch new instances in the Availability Zone with the fewest instances.
Reference:http://docs.aws.amazon.com/AutoScaIing/latest/Deve|operGuide/AS_Concepts.htmI
Q37. In relation to Amazon SQS, how many queues and messages can you have per queue for each user?
A. Unlimited
B. 10
C. 256
D. 500
Answer: A
Explanation:
Amazon SQS supports an unlimited number of queues and unlimited number of messages per queue for each user. Please be aware that Amazon SQS automatically deletes messages that have been in the queue for more than 4 days.
Reference: https://aws.amazon.com/items/1343?externaIID=1343
Q38. A user has setup Multi AZ with the MS SQL RDS instance. Which of the below mentioned functionalities can be achieved by the user?
A. High availability
B. Scalability
C. MS SQL does not support Multi AZ
D. Disaster recovery
Answer: C
Explanation:
The Multi AZ feature allows the user to achieve High Availability. MS SQL does not support Multi AZ. Reference: https://aws.amazon.com/rds/faqs/#36
Q39. A user has configured ELB with two instances running in separate AZs of the same region? Which of the below mentioned statements is true?
A. Nlulti AZ instances will provide HA with ELB
B. lVIuIti AZ instances are not possible with a single ELB
C. Nlulti AZ instances will provide scalability with ELB
D. The user can achieve both HA and scalability with ELB
Answer: A
Explanation:
If a user is running two instances in separate AZs, it will provide HA with ELB since ELB will automatically stop routing the traffic to unhealthy instances and send it to healthy instances only.
Q40. A user is creating multiple IAM users. What advice should be given to him to enhance the security?
A. Grant least prMleges to the indMdual user
B. Grant all higher prMleges to the group
C. Grant less prMleges for user, but higher prMleges for the group
D. Grant more prMleges to the user, but least prMleges to the group
Answer: A
Explanation:
It is a recommended rule that the root user should grant the least prMleges to the IAM user or the group. The higher the prMleges, the more problems it can create.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/IAMBestPractices.htmI