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Q131. 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


Q132. If an Amazon EBS volume is the root device of an instance, can I detach it without stopping the instance?

A. Yes but only if Windows instance

B. No

C. Yes

D. Yes but only if a Linux instance 

Answer: B


Q133. What does RRS stand for when talking about 53?

A. Redundancy Removal System

B. Relational Rights Storage

C. Regional Rights Standard

D. Reduced Redundancy Storage 

Answer: D


Q134. After setting up some EC2 instances you now need to set up a monitoring solution to keep track of these instances and to send you an email when the CPU hits a certain threshold. Which statement below best describes what thresholds you can set to trigger a CIoudWatch Alarm?

A. Set a target value and choose whether the alarm will trigger when the value is greater than (>), greater than or equal to (>=), less than (<), or less than or equal to (<=) that value.

B. Thresholds need to be set in IAM not CIoudWatch

C. Only default thresholds can be set you can't choose your own thresholds.

D. Set a target value and choose whether the alarm will trigger when the value hits this threshold 

Answer: A

Explanation:

Amazon CIoudWatch is a monitoring service for AWS cloud resources and the applications you run on AWS. You can use Amazon CIoudWatch to collect and track metrics, collect and monitor log files, and set

alarms.

When you create an alarm, you first choose the Amazon CIoudWatch metric you want it to monitor. Next, you choose the evaluation period (e.g., five minutes or one hour) and a statistical value to measure (e.g., Average or Maximum).

To set a threshold, set a target value and choose whether the alarm will trigger when the value is greater than (>), greater than or equal to (>=), less than (<), or less than or equal to (<=) that value.

Reference: http://aws.amazon.com/cIoudwatch/faqs/


Q135. Out of the stripping options available for the EBS volumes, which one has the following disadvantage : 'Doubles the amount of 1/0 required from the instance to EBS compared to RAID 0, because you're mirroring all writes to a pair of volumes, limiting how much you can stripe.'?

A. Raid 0

B. RAID 1+0 (RAID 10)

C. Raid 1

D. Raid 

Answer: B


Q136. You are designing a connectMty solution between on-premises infrastructure and Amazon VPC. Your server's on-premises will De communicating with your VPC instances. You will De establishing IPSec tunnels over the internet You will be using VPN gateways and terminating the IPsec tunnels on AWS supported customer gateways.

Which of the following objectives would you achieve by implementing an IPSec tunnel as outlined above? (Choose 4 answers)

A. End-to-end protection of data in transit

B. End-to-end Identity authentication

C. Data encryption across the Internet

D. Protection of data in transit over the Internet

E. Peer identity authentication between VPN gateway and customer gateway

F. Data integrity protection across the Internet

Answer: C, 0, E, F


Q137. A group can contain many users. Can a user belong to multiple groups?

A. Yes always

B. No

C. Yes but only if they are using two factor authentication

D. Yes but only in VPC 

Answer: A


Q138. You deployed your company website using Elastic Beanstalk and you enabled log file rotation to 53. An Elastic Map Reduce job is periodically analyzing the logs on 53 to build a usage dashboard that you share with your CIO.

You recently improved overall performance of the website using Cloud Front for dynamic content delivery and your website as the origin.

After this architectural change, the usage dashboard shows that the traffic on your website dropped by an order of magnitude. How do you fix your usage dashboard'?

A. Enable Cloud Front to deliver access logs to 53 and use them as input of the Elastic Map Reduce job.

B. Turn on Cloud Trail and use trail log tiles on 53 as input of the Elastic Map Reduce job

C. Change your log collection process to use Cloud Watch ELB metrics as input of the Elastic Map

Reducejob

D. Use Elastic Beanstalk "Rebuild Environment" option to update log delivery to the Elastic Map Reduce job.

E. Use Elastic Beanstalk 'Restart App server(s)" option to update log delivery to the Elastic Map Reduce job.

Answer: D


Q139. An EC2 instance is connected to an ENI (Elastic Network Interface) in one subnet. What happens when you attach an ENI of a different subnet to this EC2 instance?

A. The EC2 instance follows the rules of the older subnet

B. The EC2 instance follows the rules of both the subnets

C. Not possible, cannot be connected to 2 ENIs

D. The EC2 instance follows the rules of the newer subnet 

Answer: B

Explanation:

AWS allows you create an elastic network interface (ENI), attach an ENI to an EC2 instance, detach an ENI from an EC2 instance and attach this ENI to another EC2 instance. The attributes of a network traffic follow the ENI which is attached to an EC2 instance or detached from an EC2 instance. When you move an ENI from one EC2 instance to another, network traffic is redirected to the new EC2 instance. You can create and attach additional ENIs to an EC2 instance.

Attaching multiple network interfaces (ENIs) to an EC2 instance is useful to: Create a management network.

Use network and security appliances in your VPC.

Create dual-homed instances with workloads/roles on distinct subnets Create a low-budget, high-availability solution.

Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.htm|


Q140. You have been using T2 instances as your CPU requirements have not been that intensive. However you now start to think about larger instance types and start looking at M and IV|3 instances. You are a little confused as to the differences between them as they both seem to have the same ratio of CPU and memory. Which statement below is incorrect as to why you would use one over the other?

A. M3 instances are less expensive than M1 instances.

B. IV|3 instances are configured with more swap memory than M instances.

C. IV|3 instances provide better, more consistent performance that M instances for most use-cases.

D. M3 instances also offer SSD-based instance storage that delivers higher I/O performance. 

Answer: B

Explanation:

Amazon EC2 allows you to set up and configure everything about your instances from your operating system up to your applications. An Amazon Nlachine Image (AMI) is simply a packaged-up environment that includes all the necessary bits to set up and boot your instance.

M1 and M3 Standard instances have the same ratio of CPU and memory, some reasons below as to why you would use one over the other.

IV|3 instances provide better, more consistent performance that M instances for most use-cases. M3 instances also offer SSD-based instance storage that delivers higher I/O performance.

M3 instances are also less expensive than M1 instances. Due to these reasons, we recommend M3 for applications that require general purpose instances with a balance of compute, memory, and network resources.

However, if you need more disk storage than what is provided in M3 instances, you may still find M1 instances useful for running your applications.

Reference: https://aws.amazon.com/ec2/faqs/