Routing

Question 1

Router

Answer 1

A network device that forwards traffic depending on the destination address of that traffic

Question 2

Routing steps

Answer 2

1.receives data packets
2.examines destination
3.look up IP destination network in routing table
4.forwards traffic to destination

Question 3

Routing table columns

Answer 3

1.destination network
2.next hop
3.total hops
4.interface

Question 4

Destination network

Answer 4

Column in router table that would contain a row for each network that the router knows about

Question 5

Next hop

Answer 5

Column in router table that has the IP address of the next router that should receive the data intended for the next destination networking question

Question 6

Total hops

Answer 6

The number of hops between routers the data will take to get to its next destination

Question 7

Routing protocols

Answer 7

Special protocols the routers use to speak with each other in order to share what information they might have

Question 8

Interior gateway protocols

Answer 8

Used by routers to share information within a single autonomous system.
Split in 2 cstergories:
1.link state routing protocols
2.distance-vector protocols

Question 9

Autonomous system

Answer 9

A collection of networks that all fall under control of a single network operator. (Like the same LAN)

Question 10

Exterior gateway protocols

Answer 10

Used for exchange of information between independent autonomous systems

Question 11

Distance vector protocol

Answer 11

Sends a list of distances to routers. Helps with coming up with the hop number.

Question 12

Link state protocol

Answer 12

Linkage between routers on an autonomous system. Aka all routers know all the same info so data can be routed faster.

Question 13

Internet assigned numbers authority
IANA

Answer 13

A non profit organization that helps manage things like IP address allocation and ASN aka autonomous system number

Question 14

Autonomous System Number
ASN

Answer 14

Numbers assigned to individual autonomous systems.

Question 15

Non-routable address space

Answer 15

Ranges of IPs aside for use by anyone that cannot be routed to. (No gateway router to control traffic)
1. 10.0.0.0/8
2. 172.16.0.0/12
3. 192.168.0.0/16

Question 16

Internet engineering task force
IETF

Answer 16

An open community charged with developing and maintaining the standards required for the internet to continue to operate