2.2 Routing and Bandwidth Management

Question 1

What are the three ways that an IP address can be added to router’s IP routing table?

Answer 1

Dynamically, statically, and direct connection.

Question 2

Arrange these routing protocols in order from lowest to highest default Administrative Distance:
OSPF
External EIGRP
RIP
EIGRP
Unknown Route
Direct Connection
Static Route

Answer 2

Direct Connection: 0
Static Route: 1
EIGRP: 90
OSPF: 110
RIP: 120
External EIGRP: 170
Unknown Route: 255

Question 3

What is the difference between Link State Routing Protocols and Distance Vector Routing Protocols?

Answer 3

In Link State routing, all routers broadcast all of it’s connected networks with all routers.
In Distance Vector routing, routers send a full copy of their routing tables to neighbors periodically.

Question 4

Is the following protocol IGP or EGP, Link State or Distance Vector, and what is it’s major metric:
RIP

Answer 4

IGP, Distance Vector, and Hop Count.

Question 5

Is the following protocol IGP or EGP, Link State or Distance Vector, and what is it’s major metric:
OSPF

Answer 5

IGP, Link State, and Cost.

Question 6

Is the following protocol IGP or EGP, Link State or Distance Vector, and what is it’s major metric:
EIGRP

Answer 6

IGP, “Advanced” Distance Vector (Cisco proprietary), hop
count, device load, link reliability and MTU size (Remember this protocol uses many metrics less than what exactly they are).

Question 7

Is the following protocol IGP or EGP, Link State or Distance Vector, and what is it’s major metric:
BGP

Answer 7

EGP, Hybrid Path Vector, and BGP is the routing protocol of the internet.

Question 8

What is the default static route?

Answer 8

0.0.0.0