Incorrect Aspects of Multiple IP Addressing in AWS

Answer - C.

Multiple IP addresses can be assigned and unassigned to network interfaces attached to running or stopped instances.

The AWS documentation mentions the following.

1

You can assign a secondary private IPv4 address to any network interface.

The network interface can be attached to or detached from the instance.

2

You can assign multiple IPv6 addresses to a network interface that's in a subnet that has an associated IPv6 CIDR block.

3

You must choose the secondary IPv4 from the IPv4 CIDR block range of the subnet for the network interface.

4

Security groups apply to network interfaces, not to IP addresses.

For more information on IP addressing, one can visit the below URL:

http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/MultipleIP.html

The incorrect statement when it comes to multiple IP addressing in AWS is option C, which states that multiple IP addresses can only be assigned to network interfaces on stopped instances. This statement is incorrect because multiple IP addresses can be assigned to network interfaces on both running and stopped instances in AWS.

Here's a detailed explanation of the other options:

A. You can assign a secondary private IPv4 address to any network interface: This statement is correct. In AWS, you can assign a secondary private IPv4 address to any network interface of an instance, which enables you to run multiple network applications on the same instance with different IP addresses.

B. You can assign multiple IPv6 addresses to a network interface that's in a subnet that has an associated IPv6 CIDR block: This statement is correct. In AWS, you can assign multiple IPv6 addresses to a network interface that's in a subnet that has an associated IPv6 CIDR block. This allows you to run multiple network applications on the same instance with different IPv6 addresses.

D. Security groups apply to network interfaces, not to IP addresses. Therefore, IP addresses are subject to the security group of the network interface in which they're specified: This statement is correct. In AWS, security groups are applied to network interfaces, not to IP addresses. When you specify an IP address in a security group rule, that IP address is subject to the security group of the network interface in which it is specified. This enables you to control the traffic that is allowed to flow to and from your instances based on the security group rules that you define.

In summary, the incorrect statement when it comes to multiple IP addressing in AWS is that multiple IP addresses can only be assigned to network interfaces on stopped instances. This statement is false as multiple IP addresses can be assigned to network interfaces on both running and stopped instances.