IPv4 Addressing - CompTIA Network+ N10-009 - 1.7

Question 1

Loopback address

Answer 1

Every device on the network has a loopback address. An address to yourself. Range 127.0.0.1 through 127.255.255.254

Question 2

Reserved address

Answer 2

an IP address that is reserved for a specific purpose and not available for public use. 240.0.0.1 - 254.255.255.254
Class E

Question 3

VIP

Answer 3

Virtual IP, a logical IP address that doesn’t physically exist on a single device, but rather acts as a single point of access to multiple servers behind it, most commonly used by a load balancer to distribute traffic evenly across those servers, providing high availability and scalability to applications; can be assigned to a device not associated with a physical network adapter.

Question 4

apipa range

Answer 4

169.254.0.1 - 169.254.255.254

Question 5

Automatic Private IP Address

Answer 5

a link local address: can only comminate to other local devices, not forwarded by routers

Question 6

Private IP address range

Answer 6

More public IP address connectivity internet routable, but can be used for routed internally.

Question 7

RFC 1918 private IPv4 address class A

Answer 7

10.0.0.0 - 10.255.255.255
16,777,216 addresses

Question 8

RFC 1918 private IPv4 address class B

Answer 8

172.16.0.0 - 172.31.255.255
1,048,576 addresses

Question 9

RFC 1918 private IPv4 address class C

Answer 9

192.168.0.0 - 192.168.255.255
65,536 addresses

Question 10

Why have a loopback address

Answer 10

to enable self-testing and verification of their network functionality by sending data packets back to themselves