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

When a router receives updates from its neighbors, it adds them to its link state database, performs an SPF computation, and sends the results to its neighbors.

An SPF computation is done by each router to determine the best path to destination networks. All the best paths determined by the SPF calculation will be seen in the route table.

Each router constructs its own link state database with updates received from neighbors.

An SPF computation is done by each router to determine the best path to destination networks. All the best paths determined by the SPF calculation will be offered to the route table manager.

Show isis neighbors

Show router isis neighbors

Show router isis adjacency

Show isis adjacency

The corporate head office router will have a default route and the branch site will have a more specific static route.

The corporate head office router and the branch office router will both have specific static routes.

The corporate head office router and the branch router will both have default routes.

The corporate head office router will have a more specific static route and the branch office router will have a default route.

Area ID

Hello and Dead Intervals

Stub flag

DR and BDR addresses

The list of neighbors

A policy statement within the router identifying what is to be advertised

Access-lists denoting what is to be advertised

Default metrics for each link

A group and neighbor statement for each peer

config> static-route 0.0.0.0/0 next-hop 10.1.2.2

config>router> static-route 0.0.0.0 255.255.255.255 next-hop 10.1.2.1

config>router> static-route 0.0.0.0/0 next-hop 10.1.2.2

config>router> static-route 0 0.0 0/0 next-hop 10.1.2.1

Show route-table

Show router routing-table

Show router route-table

Show static

Neighbor, adjacency, route table

Neighbor, topology, forwarding

Topology, routing, forwarding

There are only two databases: adjacency and topology

L1 routers in the same area

L1 routers in other areas

L2 routers in the same area

L2 routers in other areas

L1/L2 router in the same area

L1/L2 routers in other areas

224.0.0.5

224.0.0.6

The unicast IP address of the interface the update is sent on

The system address of the router.

10.10.10.99

10.10.10.66

10.10.10.2

10.10.10.1

5 and 15 seconds

10 and 30 seconds

5 and 20 seconds

10 and 40 seconds

L1 and L2 routers elect separate DIS's.

DIS uses multicast address 0180x200:0015 to communicate with other routers on the broadcast network.

If a new router starts up in a LAN and has a higher interface priority, the new router preempts the original DIS and becomes the DIS.

In broadcast multi-access networks, such as Ethernet, a single router is elected as the DIS. There is no backup DIS

Broadcast

Non-Broadcast Multi-Access

Point-to-Point

Point-to-Multipoint

The protocol field of the transport layer header

The port field of the transport layer header

The protocol field of the network layer header

The port field of the network layer address

Hop count and 16

Hop count and 15

Link cost and 15

Link cost and 16

The system interface is configured with IPv6 address 2001DB8 1:100:1/128

All interfaces are configured for IPv4 and IPv6.

Interface "toR2" is configured with a globally routed IPv6 address.

Interface "toR3" is not configured for IPv6 with a global IPv6 address.

Metric is based on hop count.

Slow convergence after link failures.

Support hierarchy through the use of areas.

Support for CIDR.

Link state updates sent using layer 3 multicast.

Broadcast

Non-broadcast multi-access

Point-to-point

Point-to-multipoint

193.45 32 0/20

193.45.0.0/21

192.45.32.0/21

192.45.0.0/20