IPV4 Address Structure

Question 1

Three types of IP addresses:

Answer 1

• Network address
• Host addresses
• Broadcast address

Question 2

Sending a packet to one destination IP address.

Answer 2

Unicast transmission

Question 3

Sending a packet to all other destination IP addresses.

Answer 3

Broadcast transmission

Question 4

Sending a packet to a multicast address group.

Answer 4

Multicast transmission

Question 5

Common blocks of
addresses used by most organizations to
assign IPv4 addresses to internal hosts.

Not globally routable.

Answer 5

Private addresses

Question 6

Translates private IPv4 addresses to public IPv4

addresses.

Answer 6

Network Address Translation (NAT)

Question 7

• 127.0.0.0 /8 (127.0.0.1 to 127.255.255.254)
• Commonly identified as only 127.0.0.1
• Used on a host to test if TCP/IP is operational.

Answer 7

Loopback addresses

Question 8

• 169.254.0.0 /16 (169.254.0.1 to 169.254.255.254)
• Commonly known as the Automatic Private IP Addressing (APIPA) addresses or self assigned addresses.
• Used by Windows DHCP clients to self-configure when no DHCP servers are
available

Answer 8

Link-Local addresses

Question 9

Manages and allocates blocks of

IPv4 and IPv6 addresses to five Regional Internet Registries (RIRs).

Answer 9

The Internet Assigned Numbers Authority (IANA)