2A Review Questions

Question 1

What types of routes are designed to work well where network traffic is extremely predictable and network design is relatively simple?

Answer 1

Static Routes

Question 2

______ Routes use algorithms to build and maintain routing tables that adjust to changing topology.

Answer 2

Dynamic Routes

Question 3

Protocols such as RIP, IGRP, EIGRP, OSPF and BGP are classified as?

Answer 3

Dynamically Learned Routes

Question 4

Refers to the available traffic capacity of a link?

Answer 4

Bandwidth

Question 5

Refers to the length of time required move a packet from source to destination through the internetwork.

Answer 5

Delay

Question 6

Some companies may not care about performance as much as they care about operating expenditures.

Answer 6

Communication Cost

Question 7

The most common routing Metric.

Answer 7

Path Length AKA Hop Count

Question 8

Refers to the dependability of each network link.

Answer 8

Reliability

Question 9

Refers to the Degree to which a network resource, such as a router, is busy

Answer 9

Load

Question 10

What is meant by the term classless routing?

Answer 10

That it is a hierarchical algorithms structure and its supports Variable Length Subnet Masks (VLSM)

Question 11

Which classification of algorithm is used with Interior Gateway Protocols?

Answer 11

Intra-Domain

Question 12

Distance vector algorithms build routing tables by using ______ messages to and from their neighbors only.

Answer 12

Broadcast Routing Update

Question 13

A disadvantage of distance vector algorithms is they are limited by ___________ making them unusable for large networks.

Answer 13

Hop Count

Question 14

Which algorithm sends multicast messages to notify routers about the status of their connect links?

Answer 14

Link State

Question 15

What are three classes of routing protocols?

Answer 15

Distance Vector, Link State, Balanced Hybrid

Question 16

Which is considered a pure distance vector protocol?

Answer 16

RIP

Question 17

What is the algorithm used by OSPF?

Answer 17

Shortest Path First

Question 18

What responsibility does the “backbone” have is OSPF?

Answer 18

For distributing routing info In-between areas

Question 19

OSPF uses the _____ protocol during initialization to acquire neighbors.

Answer 19

Hello

Question 20

The _______ is responsible for generating link state advertisments for an entire area so only one router is responsible for sending out multicast messages.

Answer 20

Designated Router

Question 21

How often does OSPF send out Multicast update messages?

Answer 21

Every 30 min or when there is a change.

Question 22

EIGRP is often referred as a_______ protocol.

Answer 22

Balanced Hybrid

Question 23

When does EIGRP send multicast update messages?

Answer 23

Only when there is a topology change.

Question 24

Name there key technologies that are used by EIGRP.

Answer 24

Neighbor Discover/Recovery, Reliable Transport Protocol (RTP), and DUAL Finite-state machine`

Question 25

________ sends small "hello" packets to establish communication with neighboring routers.

Answer 25

Neighbor Discovery/Recovery

Question 26

Which key technology is responsible for the Guaranteed, ordered delivery of certain EIGRP packets?

Answer 26

RTP (reliable transfer protocol)

Question 27

Wha algorithm does EIGRP use for route determination?

Answer 27

DUAL

Question 28

What EIGRP key technology is responsible for calculating "successors" and "feasible successors"?

Answer 28

DUAL

Question 29

A______ is the best. least cost path to a destination and is copied to the routing table.

Answer 29

Sucessor

Question 30

The _________ contains all destinations advertised by neighboring routers.

Answer 30

Topology Tables

Question 31

What is administrative distance?

Answer 31

Measure of trust worthiness

Question 32

When is administrative distance used?

Answer 32

When more than one path to a destination exists.

Question 33

Which protocol path would be used is OSPF and EIGRP both provided a path to the same destination?

Answer 33

EIGRP because its a CISCO proprietary

Question 34

What type of protocol is used to communicate between autonomous systems?

Answer 34

Exterior Gateway Protocol

Question 35

How often does BGP send updates to other BGP routers?

Answer 35

Only when triggered by a topology change.

Question 36

How does BGP discover its neighbor routers?

Answer 36

Must be manually configured by the admin

Question 37

Access lists provide the basic level of _____ for networks

Answer 37

Security

Question 38

List the statement options that can be used with an access list?

Answer 38

Permit and Deny

Question 39

Every access list acting as a packet filter must have a least one what?

Answer 39

Permit

Question 40

In which direction can access lists be applied to an interface using TCP/IP?

Answer 40

One per protocol per direction

Question 41

What happens if a packet does not match any of the test conditions of the access list?

Answer 41

Discarded or destroyed

Question 42

All access list end with

Answer 42

Implicit Denial

Question 43

A standard access list is applied as an "access-class" to prevent which type of entry into the router?

Answer 43

Unauthorized access into Telnet