Nokia 4A0-C01 Exam Made Easy: Step-by-Step Preparation Guide

The term backbone router has the same definition as the term area border router.

An OSPF network needs at least one area border router to function.

Area border routers connect the backbone area to other areas in an OSPF network.

By definition, an area border router must perform route summarization between areas.

To support classful routing protocols.

To allow IP routes to be defined using any number of bits for the network portion of the address.

To allow interdomain routing between an IGP and EGP such as OSPF and BGP.

To simplify the allocation of IP address space by defining a fixed size for the network portion of the address for each of the address classes.

One

Two

Three

Four

Different authentication types are not possible because IS-IS only supports password authentication.

An adjacency will not be formed

The two routers negotiate the authentication type and then reach the up state.

Only an L2 adjacency will form, as long as both routers are L2 capable.

Source IP address

TCP source port

Prefix list

Protocol type

RIPv2 supports basic and MD5 authentication only.

RIPv2 supports password and MD5 authentication only.

RIPv2 does not support authentication, password and MD5 authentication.

RIPv2 does not support authentication.

ping static 10.5.5.5

ping static 0.0.0.0/0

ping 10.5.5.5

ping 0.0.0.0

Different types of Hello packets are exchanged on point-to-point networks than on broadcast networks.

L1/L2 Hello packets are exchanged on broadcast links.

Different L1 and L2 Hello packets are exchanged on broadcast links.

By default, Hello packets are sent every 5 seconds, and the timeout to declare a neighbor down is 15 seconds.

True

False

0

5

10

15

PDU authentication.

The ability to customize the link cost metric.

Use of Bellman-Ford routing algorithm.

Classless routing.

Updates sent as layer 3 multicast.

Router LSA

Network LSA

Summary Network LSA

Summary Router LSA

1

2

3

4

6

7

RIPv1 and RIPv2

OSPF

IS-IS

BGP

Use split horizon by default.

Send information about directly connected links to neighbors at periodic intervals.

Use holddown timers when topologies change to allow for convergence.

Maintain multiple databases: neighbor, topology and routing.