Knowledge Checks

Routing within or among networks.

Match the terms "interdomain routing" and intradomain routing" with their definitions. Recall that in Internet parlance, an “AS” refers to “Autonomous System” – a network under the control of a single organization.

Question List:

Interdomain routing.

Intradomain routing.

Answer List:

Routing among routers within same AS (“network”).
Forwarding packets between two interfaces in different but adjacent subnetworks.
Forwarding packets between two physically connected interfaces in a common subnetwork.
Routing among different ASes (“networks”).

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1/3

Open Shortest Path First (OSPF).

Check the one or more of the following statements about the OSPF protocol that are true.

The Open Shortest Path First (OSPF) Internet routing protocol implements a Bellman-Ford distance-vector routing algorithm.

OSPF implements hierarchical routing

OSPF is an interdomain routing protocol.

OSFP uses a Dijkstra-like algorithm to implement least cost path routing.

OSPF is an intra-domain routing protocol.

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2/3

Open Shortest Path First (OSPF).

Consider the OSPF routing protocol. Which of the following characteristics are associated with OSPF (as opposed to BGP)?

Is an intra-domain routing protocol.

Policy, rather than performance (e.g., least cost path), determines paths that used.

Floods link state control information.

Is an inter-domain routing protocol.

Finds a least cost path from source to destination.

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3/3

Knowledge checks

Routing within or among networks.

Question List:

Answer List:

Open Shortest Path First (OSPF).

Open Shortest Path First (OSPF).