Chapter 10 - Supplement - Sheet1

Question 1

IGP

Answer 1

Interior Gateway Protocols. Used to exchange routing information with routers in the same autonomous sytem.

Question 2

AS

Answer 2

Autonomous system. Colection of networks under a common administrative domain.

Question 3

EGP

Answer 3

Exeterior gateway protocols. Used to communicate between multiple autonomous systems

Question 4

Two types of dynamic routing

Answer 4

IGP, EGP

Question 5

Two types of IGP

Answer 5

Distance Vector, Link State

Question 6

AD

Answer 6

Administrative Distance. Used to rate the trustworthiness of routing information received on one router from its neighboring router. Integer from 0 - 255.

Question 7

AD = 0

Answer 7

Most trusted route

Question 8

AD = 255

Answer 8

Least trusted route. No traffic is allowed to be passed via this route.

Question 9

Default AD of a connected interface

Answer 9

0

Question 10

Default AD of a static route source

Answer 10

1

Question 11

Default AD of EIGRP route source

Answer 11

90

Question 12

Default AD of IGRP route source

Answer 12

100

Question 13

Default AD of OSPF route source

Answer 13

110

Question 14

Default AD of RIPv1 and RIPv2 route source

Answer 14

120

Question 15

Default AD of external EIGRP route source

Answer 15

170

Question 16

Default AD if route source is unknown

Answer 16

255

Question 17

Distance Vector Protocols

Answer 17

Finds the best path to a remote network by judging distance in hops. Fewest hops = best route

Question 18

Examples of vector protocols

Answer 18

RIP, RIPv2, Interior Gateway Routing Protocol (IGRP)

Question 19

Link State Protocols

Answer 19

Classess protocol. Routers have three tables, 1 for directly attached neighbors, 1 for topology of entire internetwork, 1 is actual routing table. Has more information about a network than any distance vector protocol

Question 20

Examples of link state protocols

Answer 20

OSPF and IS-IS

Question 21

Routing by Rumor

Answer 21

Distance vector protocol has routers pass on their routing tables to their neighbors, which combine the data with their own table and pass that on to their neighbors. All routers believe the info without verification.

Question 22

3 Metrics kept by converged routers

Answer 22

Remote network number, interface used to send packets, hop count to the network

Question 23

Converged

Answer 23

Distance Vector protocol Routers are considered converged when their routing tables are complete

Question 24

RIP

Answer 24

Distance vector protocol. Sends complete routing table every 30 seconds. Uses hop count.

Question 25

Max allowable hop for RIP

Answer 25

15

Question 26

Differences between RIPv1 and RIPv2

Answer 26

RIPv2 is classless (sends subnet info w/each update so can be used with devices on different subnets), uses multicase instead of broadcasts, supports VLSM networks, allows MD5 auth, supports discontiguous networks, RIPv1 sends broadcasts every 30 seconds. RIPv2 sends multicasts.

Question 27

VLSM

Answer 27

Variable length subnet masking. Allows for different subnet masks for different router interfaces.

Question 28

Classful Routing

Answer 28

Routers update without the subnet mask. For example, a network 172.16.0.0 could be 172.16.10.0/24 and another could be 172.16.20.0/24. With classful routing, the routers don't consider subnet mask, creating potential confusion.

Question 29

Classless Routing

Answer 29

Routers update with the subnet mask.

Question 30

EIGRP

Answer 30

Enhanced IGRP (Interior Gateway Routing Protocol)

Question 31

OSPF

Answer 31

Open Shortest Path First. Open-standard routing protocol. Type of link state protocol. Must keep a separate database of topologies for IP and IPv6

Question 32

IS-IS

Answer 32

Intermediate System to Intermediate System. IGP protocol, not for routing between autonomous systems. Link state protocol. Uses CLNS, not IP, to communicate, meaning IP and IPv6 are all the same it it.

Question 33

CLNS

Answer 33

Connectionless Network Service. IS-IS uses this to communicate between routers.

Question 34

Name the IPv6 routing protocols

Answer 34

RIPng, EIGRPv6, OSPFv3

Question 35

EIGRP uses what algroithm to maintain rout information

Answer 35

DUAL (Diffusing Update Algorithm)

Question 36

What network protocols does EIGRP support?

Answer 36

IP, IPX, AppleTalk, IPv6

Question 37

The default administrative distance of RIP is___________________.

Answer 37

120

Question 38

The default administrative distance of EIGRP is___________________.

Answer 38

90

Question 39

The default administrative distance of RIPv2 is___________________.

Answer 39

120

Question 40

What is the default administrative distance of a static route?

Answer 40

1

Question 41

What is the version or name of RIP that is used with IPv6?

Answer 41

RIPng (Next Generation)

Question 42

What is the version or name of OSPF that is used with IPv6?

Answer 42

OSPFv3

Question 43

What is the version or name of EIGRP that is used with IPv6?

Answer 43

EIGRPv6

Question 44

When would you use BGP?

Answer 44

When connecting two autonomous systms together

Question 45

When could you use EIGRP?

Answer 45

When all routers are Cisco, of course!

Question 46

Is BGP considered link state or distance vector?

Answer 46

Distance Vector

Question 47

Both TLS and SSL are

Answer 47

TLS (Transport Layer Security) & SSL (Secure Sockets Layer) Both TLS and SSL are cryptographic protocols designed to provide secure communication over a network, typically used in HTTPS, email, and VPNs.