OSPF Fundamentals

Choose all terms associated with OSPF (Choose 2)

A. LSP
B. Level 0 area
C. LSA
D. DR
E. Level 1 area

In a broadcast network, there is one DR per:

A. AS
B. OSPF Domain
C. Area
D. Ethernet segment

Choose the true statement about Area Border Router (ABR)

A. ABR has all interfaces in the same area
B. ABR has interfaces in multiple areas and maintains a separate link-state database for each area
C. ABR has interfaces in multiple areas and maintains a single link-state database for each area

An Autonomous System Boundary Router (ASBR) must have at least one interface connected to the Backbone Area

TRUE
FALSE

Choose the true statements (Choose 2)

A. OSPF is a distance-vector routing protocol
B. OSPF is based on hop count
C. OSPF is a link-state routing protocol
D. OSPF is based on path cost

Choose the true statement:

A. OSPF is a EGP routing protocol
B. OSPF is a distance-vector protocol
C. OSPF is a classfull routing protocol
D. OSPF is a classless routing protocol

DR are used on point-to-point connections

A. TRUE
B. FALSE

OSPF routers in the same area don't share the same database

A. TRUE
B. FALSE

Choose the true statement:

A. OSPF is used to forward data between sources and destinations
B. OSPF is used to exchange routing information and calculate best paths to all destinations
C. OSPF is used to exchange routing information and calculate best paths to all sources

Choose the true statement:

A. A Stub Area is an area with no externally learned routes
B. A Stub Area is an area with only one router
C. A Stub Area is an area that has been cut off from the Backbone Area

Choose the true statement about Shortest-Path Tree

A. It provides a route to all networks in the Backbone Area
B. It provides a route to all networks outside the Backbone Area
C. It provides a route to each know destination

How many Backbone Areas should be in an OSPF network

A. 8
B. 2
C. 1
D. There is no limit
E. 16

Choose the term which describes how OSPF distributes the information about router details

A. Flooding
B. Hop-by-hop updates
C. Flash updates

How many different Link-State Advertisements (LSAs) are generated Autonomous Boundary Router (ABR)

A. 5
B. 2
C. 3
D. 4

OSPF is one of the two main routing protocols used in the Internet
A. TRUE
B. FALSE

Which OSPF protocol is responsible for establishing and maintaining neighbor relationship between routers?

A. Link-State Advertisements (LSAs)
B. Hello
C. Authentication extensions for OSPF
D. OSPF Router Discovery Protocol

Link-State Advertisements (LSAs) are bounded by area

A. TRUE
B. FALSE

Choose the true statement about Internal Router (IR)

A. IR has all its interfaces connected to the same area
B. IR has all its interfaces connected to the Backbone Area
C. IR has interfaces in multiple areas and maintains a separate link-state database for each area

How do routers calculate the best path to all destinations?

A. by comparing the cost of all links which need to be traversed to destination
B. by comparing the cost of the LSP that points to destination
C. by comparing the cost of the last link which needs to be traversed to destination
D. by comparing the cost of the first link which needs to be traversed to destination

Choose the true statement about Autonomous System Boundary Router (ASBR)

A. ASBR exchange information between routers within the same areas
B. ASBR exchange information between routers within different areas
C. ASBR exchange routing information with routers outside of the OSPF domain

In the OSPF there are different types of routers

A. TRUE
B. FALSE

An Autonomous System Boundary Router (ASBR) must have at least one interface connected to the Backbone Area

A. TRUE
B. FALSE

OSPF doesn't support variable-length subnet masks

A. TRUE
B. FALSE

Choose the Backbone Area

A. 0.0.0.1
B. 224.0.0.4
C. 0.0.0.0
D. 224.0.0.0
E. 224.0.0.1

BDR stands for:

A. Bidirectional DR
B. Boundary DR
C. Backup DR

Each Autonomous Boundary Router (ABR) must have at least one interface connected to the Backbone Area

A. TRUE
B. FALSE

Which type of routing protocol is OSPF?

A. IGP
B. EGP
C. Hybrid

Choose the Link-State Advertisements from the list (Choose 3)

A. AS External LSA
B. Summary LSA
C. Router LSA
D. Network LSA
E. AS Boundary Router Summary LSA

In a broadcast network, OSPF routers form adjacencies with which of the following?

A. DR
B. Peer router
C. Next hop router
D. Adjacent router

OSPF uses TCP as a transport protocol

A. TRUE
B. FALSE