Private IP address 10.201.31.6 is reserved by Amazon for IP networking purposes.
Answer: C
Explanation:
In Amazon VPC, you can assign any Private IP address to your instance as long as it is:
Part of the associated subnet's IP address range
Not reserved by Amazon for IP networking purposes
Not currently assigned to another interface
http://aws.amazon.com/vpc/faqs/
QUESTION 10
Regarding Amazon SQS, are there restrictions on the names of Amazon SQS queues?
Yes. Queue names must be unique within an AWS account and you cannot use hyphens (-)
and underscores (_)
Yes. Queue names are limited to 80 characters and queue names must be unique within an
AWS account
Yes. Queue names are limited to 80 characters but queue names do not need to be unique
within an AWS account
Answer: C
Explanation:
Queue names are limited to 80 characters. Alphanumeric characters plus hyphens (-) and
underscores (_) are allowed. Queue names must be unique within an AWS account.
After you delete a queue, you can reuse the queue name.
https://aws.amazon.com/sqs/faqs/
QUESTION 11
A user is planning to host a web server as well as an app server on a single EC2 instance which
is a part of the public subnet of a VPC. How can the user setup to have two separate public IPs
and separate security groups for both the application as well as the web server?
Launch a VPC instance with two network interfaces. Assign a separate security group to each
and AWS will assign a separate public IP to them.
Launch VPC with two separate subnets and make the instance a part of both the subnets.
Launch a VPC instance with two network interfaces. Assign a separate security group and
elastic IP to them.
Launch a VPC with ELB such that it redirects requests to separate VPC instances of the public
subnet.
Answer: C
Explanation:
If you need to host multiple websites(with different IPs) on a single EC2 instance, the following is
the suggested method from AWS.
Launch a VPC instance with two network interfaces
Assign elastic IPs from VPC EIP pool to those interfaces (Because, when the user has attached
more than one network interface with an instance, AWS cannot assign public IPs to them.) Assign
separate Security Groups if separate Security Groups are needed This scenario also helps for
operating network appliances, such as firewalls or load balancers that have multiple private IP
addresses for each network interface.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/MultipleIP.html
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