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October 17, 2017

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Q51. Please select the Amazon EC2 resource which cannot be tagged.

A. images (AM|s, kernels, RAM disks)

B. Amazon EBS volumes

C. Elastic IP addresses

D. VPCs

Answer: C


Q52. After moving an E-Commerce website for a client from a dedicated server to AWS you have also set up auto scaling to perform health checks on the instances in your group and replace instances that fail these checks. Your client has come to you with his own health check system that he wants you to use as it has proved to be very useful prior to his site running on AWS. What do you think would be an appropriate response to this given all that you know about auto scaling?

A. It is not possible to implement your own health check system. You need to use AWSs health check system.

B. It is not possible to implement your own health check system due to compatibility issues.

C. It is possible to implement your own health check system and then send the instance's health information directly from your system to Cloud Watch.

D. It is possible to implement your own health check system and then send the instance's health information directly from your system to Cloud Watch but only in the US East (N. Virginia) region.

Answer:

Explanation:

Auto Scaling periodically performs health checks on the instances in your group and replaces instances that fail these checks. By default, these health checks use the results of EC2 instance status checks to determine the health of an instance. If you use a load balancer with your Auto Scaling group, you can optionally choose to include the results of Elastic Load Balancing health checks.

Auto Scaling marks an instance unhealthy if the calls to the Amazon EC2 action DescribeInstanceStatus returns any other state other than running, the system status shows impaired, or the calls to Elastic Load Balancing action DescribeInstanceHeaIth returns OutOfService in the instance state field.

After an instance is marked unhealthy because of an Amazon EC2 or Elastic Load Balancing health check, it is scheduled for replacement.

You can customize the health check conducted by your Auto Scaling group by specifying additional checks or by having your own health check system and then sending the instance's health information directly from your system to Auto Scaling.

Reference: http://docs.aws.amazon.com/AutoScaIing/latest/Deve|operGuide/healthcheck.html


Q53. Security groups act like a firewall at the instance level, whereas _ are an additional layer of security that act at the subnet level.

A. DB Security Groups

B. VPC Security Groups

C. network ACLs 

Answer: C


Q54. An AWS customer is deploying an application mat is composed of an AutoScaIing group of EC2 Instances.

The customers security policy requires that every outbound connection from these instances to any other service within the customers Virtual Private Cloud must be authenticated using a unique x 509 certificate that contains the specific instance-id.

In addition an x 509 certificates must Designed by the customer's Key management service in order to be trusted for authentication.

Which of the following configurations will support these requirements?

A. Configure an IAM Role that grants access to an Amazon 53 object containing a signed certificate and configure me Auto Scaling group to launch instances with this role Have the instances bootstrap get the certificate from Amazon 53 upon first boot.

B. Embed a certificate into the Amazon Machine Image that is used by the Auto Scaling group Have the launched instances generate a certificate signature request with the instance's assigned instance- id to   the Key management service for signature.

C. Configure the Auto Scaling group to send an SNS notification of the launch of a new instance to the trusted key management service. Have the Key management service generate a signed certificate and send it directly to the newly launched instance.

D. Configure the launched instances to generate a new certificate upon first boot Have the Key management service poll the AutoScaIing group for associated instances and send new instances a

certificate signature (hat contains the specific instance-id. 

Answer: A


Q55. Select the correct statement:

A. You don't need not specify the resource identifier while stopping a resource

B. You can terminate, stop, or delete a resource based solely on its tags

C. You can't terminate, stop, or delete a resource based solely on its tags

D. You don't need to specify the resource identifier while terminating a resource 

Answer: C


Q56. When automatic failover occurs, Amazon RDS will emit a DB Instance event to inform you that automatic failover occurred. You can use the to ret urn information about events related to your DB Instance

A. FetchFai|ure

B. DescriveFai|ure

C. DescribeEvents

D. FetchEvents 

Answer: C


Q57. While signing in REST/ Query requests, for additional security, you should transmit your requests using Secure Sockets Layer (SSL) by using   

A. HTIP

B. Internet Protocol Security(IPsec)

C. TLS (Transport Layer Security)

D. HTIPS

Answer: D


Q58. You have just set up yourfirst Elastic Load Balancer (ELB) but it does not seem to be configured properly. You discover that before you start using ELB, you have to configure the listeners for your load balancer. Which protocols does ELB use to support the load balancing of applications?

A. HTTP and HTTPS

B. HTTP, HTTPS , TCP, SSL and SSH

C. HTTP, HTTPS , TCP, and SSL

D. HTTP, HTTPS , TCP, SSL and SFTP

Answer:

Explanation:

Before you start using Elastic Load BaIancing(ELB), you have to configure the listeners for your load balancer. A listener is a process that listens for connection requests. It is configured with a protocol and a port number for front-end (client to load balancer) and back-end (load balancer to back-end instance) connections.

Elastic Load Balancing supports the load balancing of applications using HTTP, HTTPS (secure HTTP), TCP, and SSL (secure TCP) protocols. The HTTPS uses the SSL protocol to establish secure connections over the HTTP layer. You can also use SSL protocol to establish secure connections over the TCP layer.

The acceptable ports for both HTTPS/SSL and HTTP/TCP connections are 25, 80, 443, 465, 587, and

1024-65535.

Reference:

http://docs.aws.amazon.com/E|asticLoadBaIancing/latest/DeveIoperGuide/elb-listener-config.htmI


Q59. Can Amazon 53 uploads resume on failure or do they need to restart?

A. Restart from beginning

B. You can resume them, if you flag the "resume on fai lure" option before uploading.

C. Resume on failure

D. Depends on the file size 

Answer: C


Q60. You currently operate a web application In the AWS US-East region The application runs on an  autoscaled layer of EC2 instances and an RDS Multi-AZ database Your IT security compliance officer has tasked you to develop a reliable and durable logging solution to track changes made to your EC2.1AM And RDS resources. The solution must ensure the integrity and confidentiality of your log data. Which of these solutions would you recommend?

A. Create a new C|oudTraiI trail with one new 53 bucket to store the logs and with the global services option selected Use IAM roles 53 bucket policies and Multi Factor Authentication (MFA) Delete on the 53 bucket that stores your logs.

B. Create a new CIoudTraiI with one new 53 bucket to store the logs Configure SNS to send log file delivery notifications to your management system Use IAM roles and 53 bucket policies on the 53 bucket mat stores your logs.

C. Create a new CIoudTraiI trail with an existing 53 bucket to store the logs and with the global services option selected Use 53 ACLs and Multi Factor Authentication (MFA) Delete on the 53 bucket that stores your logs.

D. Create three new C|oudTrai| trails with three new 53 buckets to store the logs one for the AWS Management console, one for AWS 5DKs and one for command line tools Use IAM roles and 53 bucket policies on the 53 buckets that store your logs.

Answer: A



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