OSPF

Which OSPF state signifies that no active neighbor has been detected?

• a. INIT

• b. Exstart

• c. Down

• d. Full

What is the default cost for a 64-kb/s serial link in OSPF?

• a. 64

• b. 1562

• c. 10

• d. 1000

What is a key advantage of using route summarisation in OSPF?

• a. Increased bandwidth

• b. Reduced LSA flooding

• c. Faster convergence

• d. Simplified configuration

What type of OSPF area can include both internal routers and an Area Border Router (ABR)?

• a. Backbone area

• b. Stub area

• c. Normal area

• d. Not-So-Stubby Area (NSSA)

What is the administrative distance of OSPF?

• a. 90

• b. 100

• c. 110

• d. 120

What is the default multicast address used by OSPF for sending Hello packets?

• a. 224.0.0.5

• b. 224.0.0.10

• c. 224.0.0.1

• d. 224.0.0.6

Which OSPF packet type is used to acknowledge the receipt of link-state information?

• a. Hello

• b. Database Description

• c. Link-State Request

• d. Link-State Acknowledgment