AWS-SysOps Practice Test practice questions, page 24 of 38, with answer review and explanations.
Question 116
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 117
A user has created a VPC with CIDR 20.0.0.0/16 with only a private subnet and VPN connection using the VPC wizard. The user wants to connect to the instance in a private subnet over SSH. How should the user define the security rule for SSH?
Allow Inbound traffic on port 22 from the user's network
The user has to create an instance in EC2 Classic with an elastic IP and configure the security group of a private subnet to allow SSH from that elastic IP
The user can connect to a instance in a private subnet using the NAT instance
Allow Inbound traffic on port 80 and 22 to allow the user to connect to a private subnet over the Internet
Question 118
A user has created an ELB with the availability zone US-East-1. The user wants to add more zones to ELB to achieve High Availability. How can the user add more zones to the existing ELB?
It is not possible to add more zones to the existing ELB
The only option is to launch instances in different zones and add to ELB
The user should stop the ELB and add zones and instances as required
The user can add zones on the fly from the AWS console
Question 119
A user has configured an Auto Scaling group with ELB. The user has enabled detailed CloudWatch monitoring on Elastic Load balancing. Which of the below mentioned statements will help the user understand this functionality better?
ELB sends data to CloudWatch every minute only and does not charge the user
ELB will send data every minute and will charge the user extra
ELB is not supported by CloudWatch
It is not possible to setup detailed monitoring for ELB
Question 120
A user has configured ELB with two EBS backed EC2 instances. The user is trying to understand the DNS access and IP support for ELB. Which of the below mentioned statements may not help the user understand the IP mechanism supported by ELB?
The client can connect over IPV4 or IPV6 using Dualstack
ELB DNS supports both IPV4 and IPV6
Communication between the load balancer and back-end instances is always through IPV4