6.3.7 Check Your Understanding – IPv4 Address Structure Answers

1. Which two statements are correct about an IPv4 address? (Choose two.)

• It contains a network portion.
• It contains a host portion.
• It is 24 bits in length.
• The information within the IPv4 address is sufficient for determining the network portion and host portion of the address.

2. Which two statements are correct about an IPv4 subnet mask? (Choose two.)

• It is 24 bits in length.
• It differentiates the network portion from the host portion of an IPv4 address.
• It is any combination of 0 and 1 bits.
• It is a consecutive sequence of 0 bits followed by a consecutive sequence of 1 bits.
• The 1 bits determine the network portion of an IPv4 address, and the 0 bits determine the host portion.

3. Which three statements are correct about the AND operation? (Choose three.)

• The AND operation is performed between an IPv4 address and subnet mask.
• The AND operation is performed between two IPv4 addresses.
• 1 AND 1 results in a 0
• 1 AND 0 results in a 0
• It is used to determine the network and host portions of an IPv4 address.

4. What is the result of a logical AND operation of: 10.128.17.4 255.255.240.0?

• The IPv4 network address of 10.128.0.0 255.255.240.0
• The IPv4 network address of 10.128.16.0 255.255.240.0
• The IPv4 network address of 10.128.17.0 255.255.240.0
• The IPv4 network address of 10.128.17.4 255.255.240.0