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Q131. – (Topic 3) 

A .NET application that you manage is running in Elastic Beanstalk. Your developers tell you they will need access to application log files to debug issues that arise. The infrastructure will scale up and down. 

How can you ensure the developers will be able to access only the log files? 

A. Access the log files directly from Elastic Beanstalk 

B. Enable log file rotation to S3 within the Elastic Beanstalk configuration 

C. Ask your developers to enable log file rotation in the applications web.config file 

D. Connect to each Instance launched by Elastic Beanstalk and create a Windows Scheduled task to rotate the log files to S3. 

Answer:

Explanation: Reference: 

http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.loggingS3.title.html 

Q132. – (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:

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. 

Q133. – (Topic 3) 

A user has launched an EC2 instance store backed instance in the US-East-1a zone. The user created AMI #1 and copied it to the Europe region. After that, the user made a few updates to the application running in the US-East-1a zone. The user makes an AMI#2 after the changes. If the user launches a new instance in Europe from the AMI #1 copy, which of the below mentioned statements is true? 

A. The new instance will have the changes made after the AMI copy as AWS just copies the reference of the original AMI during the copying. Thus, the copied AMI will have all the updated data 

B. The new instance will have the changes made after the AMI copy since AWS keeps updating the AMI 

C. It is not possible to copy the instance store backed AMI from one region to another 

D. The new instance in the EU region will not have the changes made after the AMI copy 

Answer:

Explanation: 

Within EC2, when the user copies an AMI, the new AMI is fully independent of the source AMI; there is no link to the original (source. AMI. The user can modify the source AMI without affecting the new AMI and vice a versa. Therefore, in this case even if the source AMI is modified, the copied AMI of the EU region will not have the changes. Thus, after copy the user needs to copy the new source AMI to the destination region to get those changes. 

Q134. – (Topic 3) 

An organization has launched 5 instances: 2 for production and 3 for testing. The organization wants that one particular group of IAM users should only access the test instances and not the production ones. How can the organization set that as a part of the policy? 

A. Launch the test and production instances in separate regions and allow region wise access to the group 

B. Define the IAM policy which allows access based on the instance ID 

C. Create an IAM policy with a condition which allows access to only small instances 

D. Define the tags on the test and production servers and add a condition to the IAM policy which allows access to specific tags 

Answer:

Explanation: 

AWS Identity and Access Management is a web service which allows organizations to manage users and user permissions for various AWS services. The user can add conditions as a part of the IAM policies. The condition can be set on AWS Tags, Time, and Client IP as well as on various parameters. If the organization wants the user to access only specific instances he should define proper tags and add to the IAM policy condition. 

The sample policy is shown below. 

"Statement": [ 

"Action": "ec2:*", 

"Effect": "Allow", 

"Resource": "*", 

"Condition": { 

"StringEquals": { 

"ec2:ResourceTag/InstanceType": "Production" 

Q135. – (Topic 2) 

A user has launched two EBS backed EC2 instances in the US-East-1a region. The user wants to change the zone of one of the instances. How can the user change it? 

A. Stop one of the instances and change the availability zone 

B. The zone can only be modified using the AWS CLI 

C. From the AWS EC2 console, select the Actions – > Change zones and specify new zone 

D. Create an AMI of the running instance and launch the instance in a separate AZ 

Answer:

Explanation: 

With AWS EC2, when a user is launching an instance he can select the availability zone (AZ. at the time of launch. If the zone is not selected, AWS selects it on behalf of the user. Once the instance is launched, the user cannot change the zone of that instance unless he creates an AMI of that instance and launches a new instance from it. 

Q136. – (Topic 3) 

An AWS root account owner is trying to create a policy to access RDS. Which of the below mentioned 

statements is true with respect to the above information? 

A. Create a policy which allows the users to access RDS and apply it to the RDS instances 

B. The user cannot access the RDS database if he is not assigned the correct IAM policy 

C. The root account owner should create a policy for the IAM user and give him access to the RDS services 

D. The policy should be created for the user and provide access for RDS 

Answer:

Explanation: 

AWS Identity and Access Management is a web service which allows organizations to manage users and user permissions for various AWS services. If the account owner wants to create a policy for RDS, the owner has to create an IAM user and define the policy which entitles the IAM user with various RDS services such as Launch Instance, Manage security group, Manage parameter group etc. 

Q137. – (Topic 3) 

An organization (Account ID 123412341234. has attached the below mentioned IAM policy to a user. What does this policy statement entitle the user to perform? 

"Version": "2012-10-17", 

"Statement": [{ 

"Sid": "AllowUsersAllActionsForCredentials", 

"Effect": "Allow", 

"Action": [ 

"iam:*LoginProfile", 

"iam:*AccessKey*", 

"iam:*SigningCertificate*" 

], 

"Resource": ["arn:aws:iam:: 123412341234:user/${aws:username}"] 

}] 

A. The policy allows the IAM user to modify all IAM user’s credentials using the console, SDK, CLI or APIs 

B. The policy will give an invalid resource error 

C. The policy allows the IAM user to modify all credentials using only the console 

D. The policy allows the user to modify all IAM user’s password, sign in certificates and access keys using only CLI, SDK or APIs 

Answer:

Explanation: 

WS Identity and Access Management is a web service which allows organizations to manage users and user permissions for various AWS services. If the organization (Account ID 123412341234. wants some of their users to manage credentials (access keys, password, and sing in certificates. of all IAM users, they should set an applicable policy to that user or group of users. The below mentioned policy allows the IAM user to modify the credentials of all IAM user’s using only CLI, SDK or APIs. The user cannot use the AWS 

console for this activity since he does not have list permission for the IAM users. 

"Version": "2012-10-17", 

"Statement": [{ 

"Sid": "AllowUsersAllActionsForCredentials", 

"Effect": "Allow" 

"Action": [ 

"iam:*LoginProfile", 

"iam:*AccessKey*", 

"iam:*SigningCertificate*" 

], 

"Resource": ["arn:aws:iam::123412341234:user/${aws:username}"] 

Amazon AWS-SysOps : Practice Test 

}] } 

Q138. – (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. Which of the below mentioned entries are required in the main route table to allow the instances in VPC to communicate with each other? 

A. Destination : 20.0.0.0/24 and Target : VPC 

B. Destination : 20.0.0.0/16 and Target : ALL 

C. Destination : 20.0.0.0/0 and Target : ALL 

D. Destination : 20.0.0.0/24 and Target : Local 

Answer:

Q139. – (Topic 3) 

A user has enabled session stickiness with ELB. The user does not want ELB to manage the cookie; instead he wants the application to manage the cookie. What will happen when the server instance, which is bound to a cookie, crashes? 

A. The response will have a cookie but stickiness will be deleted 

B. The session will not be sticky until a new cookie is inserted 

C. ELB will throw an error due to cookie unavailability D. The session will be sticky and ELB will route requests to another server as ELB keeps replicating the Cookie 

Answer:

Explanation: 

With Elastic Load Balancer, if the admin has enabled a sticky session with application controlled stickiness, the load balancer uses a special cookie generated by the application to associate the session with the original server which handles the request. ELB follows the lifetime of the application-generated cookie corresponding to the cookie name specified in the ELB policy configuration. The load balancer only inserts a new stickiness cookie if the application response includes a new application cookie. The load balancer stickiness cookie does not update with each request. If the application cookie is explicitly removed or expires, the session stops being sticky until a new application cookie is issued. 

Q140. – (Topic 2) 

A user has received a message from the support team that an issue occurred 1 week back between 3 AM to 4 AM and the EC2 server was not reachable. The user is checking the CloudWatch metrics of that instance. How can the user find the data easily using the CloudWatch console? 

A. The user can find the data by giving the exact values in the time Tab under CloudWatch metrics 

B. The user can find the data by filtering values of the last 1 week for a 1 hour period in the Relative tab under CloudWatch metrics 

C. It is not possible to find the exact time from the console. The user has to use CLI to provide the specific time 

D. The user can find the data by giving the exact values in the Absolute tab under CloudWatch metrics 

Answer:

Explanation: 

If the user is viewing the data inside the CloudWatch console, the console provides options to filter values either using the relative period, such as days /hours or using the Absolute tab where the user can provide data with a specific date and time. The console also provides the option to search using the local timezone under the time range caption in the console. 

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