IP Addressing

Question 1

What does a Class A address look like?

Answer 1

1st Octect is 1-127; Mask is 255.0.0.0

Question 2

What does a Class B address look like?

Answer 2

128-191’ 255.255.0.0 mask

Question 3

What does a class C address look like?

Answer 3

192-223; 255.255.255.0; 256 possible hosts

Question 4

What does a Class D address look like?

Answer 4

224-239; no subnet mask; used for multicast addresses (a logical identifier for a group of hosts; like a group chat that you have)

Question 5

What does a Class E address look like?

Answer 5

240-255; research and development only

Question 6

Classful Mask

Answer 6

the default subnet mask for a given class of IP address

Question 7

Classless Inter-Domain Routing

Answer 7

Allows for the borrowing of some of those host bits and reassigning them to the network portion.

Question 8

Subnetting

Answer 8

Allows for the use of a classless subnet mask to create smaller networks with fewer hosts in each network

Question 9

Network Address Translation (NAT)

Answer 9

Changes your private IP into a public IP

Question 10

What does a class A private address look like?

Answer 10

Starts with a 10

Question 11

Class B private look like?

Answer 11

172 is the starting value

Question 12

Class C private address look like?

Answer 12

192.168 is the starting value

Question 13

Loopback address (127.0.0.1)

Answer 13

Creates a loopback to the host and is often used in troubleshooting and testing network protocols on a system.

Question 14

Subinterface

Answer 14

a virtual interface that is created by dividing up one physical interface into multiple logical interfaces

Question 15

Unicast

Answer 15

Data travels from a single source device to a single destination device (like a phone conversation)

Question 16

Multicast

Answer 16

Data travels from a single source device to multiple destinations (like talking to a class)

Question 17

Broadcast

Answer 17

Data travels from a single source to all sources (like a radio broadcast)

Question 18

BOOTP

Answer 18

Dynamically assigns IP addresses and allows a workstation to load a copy of their boot image over the network

Question 19

Network ID

Answer 19

first IP in the network

Question 20

Broadcast ID

Answer 20

last IP in the addressing scheme

Question 21

Variable Length Subnet Mask (VLSM)

Answer 21

Allows subnets of various sizes to be used and requires a routing protocol that supports it

Question 22

Assignable IP

Answer 22

This is the number of IPs minus the broadcast and and network ID

Question 23

Dual Stack

Answer 23

running both the IPv4 and IPv6 protocols by your network devices simutaneously

Question 24

Tunneling

Answer 24

Allows an existing IPv4 router to carry IPv6 traffic

Question 25

Link-Local

Answer 25

Used like a private IP in ipv4 that can only be used on the local rea network and begins with FE80

Question 26

Stateless Address Autoconfiguration (SLAAC)

Answer 26

eliminates the need to obtain addresses or other configuration information from a central server

Question 27

Multicast Address

Answer 27

used to identify a set of interfaces and begins with FF

Question 28

Anycast Address

Answer 28

Used to identify a set of interfaces so that a packet can be sent to any member of a set

Question 29

Extended Unique Identifier 64

Answer 29

Allows a host to assign itself a unique 64-bit IPv6 interface identifier called a EUI-64