[2021-New] Amazon AWS-SysOps Dumps With Update Exam Questions (131-140)

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Q1. - (Topic 2)

An organization has created 50 IAM users. The organization has introduced a new policy which will change the access of an IAM user. How can the organization implement this effectively so that there is no need to apply the policy at the individual user level?

A. Use the IAM groups and add users as per their role to different groups and apply policy to group

B. The user can create a policy and apply it to multiple users in a single go with the AWS CLI

C. Add each user to the IAM role as per their organization role to achieve effective policy setup

D. Use the IAM role and implement access at the role level

Answer: A

Explanation:

With AWS IAM, a group is a collection of IAM users. A group allows the user to specify permissions for a collection of users, which can make it easier to manage the permissions for those users. A group helps an organization manage access in a better way; instead of applying at the individual level, the organization can apply at the group level which is applicable to all the users who are a part of that group.

Q2. - (Topic 2)

A user has configured the Auto Scaling group with the minimum capacity as 3 and the maximum capacity as 5. When the user configures the AS group, how many instances will Auto Scaling launch?

A. 3

B. 0

C. 5

D. 2

Answer: C

Q3. - (Topic 3)

A user is trying to understand the CloudWatch metrics for the AWS services. It is required that the user should first understand the namespace for the AWS services. Which of the below mentioned is not a valid namespace for the AWS services?

A. AWS/StorageGateway

B. AWS/CloudTrail

C. AWS/ElastiCache

D. AWS/SWF

Answer: B

Explanation:

Amazon CloudWatch is basically a metrics repository. The AWS product puts metrics into this repository, and the user can retrieve the data or statistics based on those metrics. To distinguish the data for each service, the CloudWatch metric has a namespace. Namespaces are containers for metrics. All AWS services that provide the Amazon CloudWatch data use a namespace string, beginning with "AWS/". All the services which are supported by CloudWatch will have some namespace. CloudWatch does not monitor CloudTrail. Thus, the namespace “AWS/CloudTrail” is incorrect.

Q4. - (Topic 3)

A user has configured Auto Scaling with the minimum capacity as 2 and the desired capacity as 2. The user is trying to terminate one of the existing instance with the command:

as-terminate-instance-in-auto-scaling-group<Instance ID> --decrement-desired-capacity

What will Auto Scaling do in this scenario?

A. Terminates the instance and does not launch a new instance

B. Terminates the instance and updates the desired capacity to 1

C. Terminates the instance and updates the desired capacity and minimum size to 1

D. Throws an error

Answer: D

Explanation:

The Auto Scaling command as-terminate-instance-in-auto-scaling-group <Instance ID> will terminate the specific instance ID. The user is required to specify the parameter as --decrement-desired-capacity. Then Auto Scaling will terminate the instance and decrease the desired capacity by 1. In this case since the minimum size is 2, Auto Scaling will not allow the desired capacity to go below 2. Thus, it will throw an error.

Q5. - (Topic 3)

A user has created a Cloudformation stack. The stack creates AWS services, such as EC2 instances, ELB, AutoScaling, and RDS. While creating the stack it created EC2, ELB and AutoScaling but failed to create RDS. What will Cloudformation do in this scenario?

A. Cloudformation can never throw an error after launching a few services since it verifies all the steps before launching

B. It will warn the user about the error and ask the user to manually create RDS

C. Rollback all the changes and terminate all the created services

D. It will wait for the user’s input about the error and correct the mistake after the input

Answer: C

Explanation:

AWS Cloudformation is an application management tool which provides application modelling, deployment, configuration, management and related activities. The AWS Cloudformation stack is a collection of AWS resources which are created and managed as a single unit when AWS CloudFormation instantiates a template. If any of the services fails Amazon AWS-SysOps : Practice Test

to launch, Cloudformation will rollback all the changes and terminate or delete all the created services.

Q6. - (Topic 2)

A user has a refrigerator plant. The user is measuring the temperature of the plant every 15 minutes. If the user wants to send the data to CloudWatch to view the data visually, which of the below mentioned statements is true with respect to the information given above?

A. The user needs to use AWS CLI or API to upload the data

B. The user can use the AWS Import Export facility to import data to CloudWatch

C. The user will upload data from the AWS console

D. The user cannot upload data to CloudWatch since it is not an AWS service metric

Answer: A

Explanation:

AWS CloudWatch supports the custom metrics. The user can always capture the custom data and upload the data to CloudWatch using CLI or APIs. While sending the data the user has to include the metric name, namespace and timezone as part of the request.

Q7. - (Topic 3)

A user has launched an EBS backed instance with EC2-Classic. The user stops and starts the instance. Which of the below mentioned statements is not true with respect to the stop/start action?

A. The instance gets new private and public IP addresses

B. The volume is preserved

C. The Elastic IP remains associated with the instance

D. The instance may run on a anew host computer

Answer: C

Explanation:

A user can always stop/start an EBS backed EC2 instance. When the user stops the instance, it first enters the stopping state, and then the stopped state. AWS does not charge the running cost but charges only for the EBS storage cost. If the instance is running in EC2-Classic, it receives a new private IP address; as the Elastic IP address (EIP. associated with the instance is no longer associated with that instance.

Q8. - (Topic 2)

A user is planning to setup notifications on the RDS DB for a snapshot. Which of the below mentioned event categories is not supported by RDS for this snapshot source type?

A. Backup

B. Creation

C. Deletion

D. Restoration

Answer: A

Explanation:

Amazon RDS uses the Amazon Simple Notification Service to provide a notification when an Amazon RDS event occurs. Event categories for a snapshot source type include: Creation, Deletion, and Restoration. The Backup is a part of DB instance source type.

Q9. - (Topic 3)

A user has created a VPC with public and private subnets using the VPC wizard. The VPC has CIDR

20.0.0.0/16. The private subnet uses CIDR 20.0.0.0/24 . The NAT instance ID is i-a12345. Which of the below mentioned entries are required in the main route table attached with the private subnet to allow instances to connect with the internet?

A. Destination: 0.0.0.0/0 and Target: i-a12345

B. Destination: 20.0.0.0/0 and Target: 80

C. Destination: 20.0.0.0/0 and Target: i-a12345

D. Destination: 20.0.0.0/24 and Target: i-a12345

Answer: A

Explanation:

A user can create a subnet with VPC and launch instances inside that subnet. If the user has created a public private subnet, the instances in the public subnet can receive inbound traffic directly from the Internet, whereas the instances in the private subnet cannot. If these subnets are created with Wizard, AWS will create two route tables and attach to the subnets. The main route table will have the entry “Destination: 0.0.0.0/0 and Target: ia12345”, which allows all the instances in the private subnet to connect to the internet using NAT.

Q10. - (Topic 1)

A customer has a web application that uses cookie Based sessions to track logged in users It Is deployed on AWS using ELB and Auto Scaling The customer observes that when load increases. Auto Scaling launches new Instances but the load on the easting Instances does not decrease, causing all existing users to have a sluggish experience.

Which two answer choices independently describe a behavior that could be the cause of the sluggish user experience? Choose 2 answers

A. ELB's normal behavior sends requests from the same user to the same backend instance

B. ELB's behavior when sticky sessions are enabled causes ELB to send requests in the same session to the same backend instance

C. A faulty browser is not honoring the TTL of the ELB DNS name.

D. The web application uses long polling such as comet or websockets. Thereby keeping a connection open to a web server tor a long time

E. The web application uses long polling such as comet or websockets. Thereby keeping a connection open to a web server for a long time.

Answer: B,D