In an OSPF environment, what must a router receive after it sends out an update?

The router must receive an acknowledgment

The router must receive a Hello

The router must receive a new sequence number

The router must receive a Link State Packet

What causes an adjacency to change from down to two ways?

When a router receives a Hello packet that contains its own router ID in the neighbor list from a neighbor.

When a link state update is received in response to a link state request.

When a router receives a database description packet from a neighbor.

When a link state acknowledgement is received in response to a link state update.

Exhibit Given the two configurations shown, identify the two incorrect statements below: (Choose two)

The system interface is missing in one configuration so OSPF will not operate correctly.

The interface type settings differ, but OSPF will still operate correctly.

Both routers will generate OSPF Hello packets.

Metric values differ, but this does not prevent OSPF operation.

Which of the following are similarities between OSPF and IS-IS? Choose two answers.

Support hierarchy through the use of areas.

Slow convergence after link failures.

Link state updates sent using layer 3 multicast.

Free Nokia 4A0-113 Exam Practice Questions & Explanations

Last updated on: Sep 17, 2026
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