EC2 Network and Security

Question 1 of 8

1. Question

A user is launching an EC2 instance in the US East region. Which of the below mentioned options is recommended by AWS with respect to the selection of the availability zone?

Always select the US-East-1-a zone for HA
Do not select the AZ; instead let AWS select the AZ
The user can never select the availability zone while launching an instance
Always select the AZ while launching an instance

Question 2 of 8

2. Question

You have multiple Amazon EC2 instances running in a cluster across multiple Availability Zones within the same region. What combination of the following should be used to ensure the highest network performance (packets per second), lowest latency, and lowest jitter? Choose 3 answers

Amazon EC2 placement groups (would not work for multiple AZs)
Enhanced networking
Amazon PV AMI
Amazon HVM AMI
Amazon Linux
Amazon VPC
Amazon EC2 placement groups

Question 3 of 8

3. Question

Regarding the attaching of ENI to an instance, what does ‘warm attach’ refer to?

Attaching an ENI to an instance when it is stopped
Attaching an ENI to an instance when it is running
Attaching an ENI to an instance during the launch process

Question 4 of 8

4. Question

Can I detach the primary (eth0) network interface when the instance is running or stopped?

Yes, You can.
You cannot
Depends on the state of the interface at the time

Question 5 of 8

5. Question

By default what are ENIs that are automatically created and attached to instances using the EC2 console set to do when the attached instance terminates?

Remain as is
Terminate
Hibernate
Pause

Question 6 of 8

6. Question

Select the incorrect statement

In Amazon EC2, the private IP addresses only returned to Amazon EC2 when the instance is stopped or terminated
In Amazon VPC, an instance retains its private IP addresses when the instance is stopped.
In Amazon VPC, an instance does NOT retain its private IP addresses when the instance is stopped
In Amazon EC2, the private IP address is associated exclusively with the instance for its lifetime

Question 7 of 8

7. Question

To ensure failover capabilities, consider using a _____ for incoming traffic on a network interface”.

primary public IP
secondary private IP
secondary public IP
add on secondary IP

Question 8 of 8

8. Question

Which statements are true about Elastic Network Interface (ENI)? (Choose 2 answers)

You can attach an ENI in one AZ to an instance in another AZ
You can change the security group membership of an ENI
You can attach an instance to tow different subnets within a VPC by using two ENIs
You can attach an ENI in one VPC to an instance in another VPC

EC2 Network and Security