4A0-C04 Online Practice Questions and Answers

A BGP session is in OpenConfirm state. Which of the following messages must be received to transition to Established state?

A. Update

B. Open

C. Notification

D. Keepalive

Click the exhibit.

AS 65100 is advertising 192.168.1.0/27 into BGP. Which of the following AS Paths would the prefix 192.168.1.0/27 contain when viewed on router R8?

A. 65200 (65206 65202) 65100

B. (65206 65202)65100

C. 65250 (65206 65202) 65100

D. 65200 65100

How are policy direction and data flow related on the Nokia 7750 SR?

A. Import policies affect ingress data flow.

B. Export policies affect ingress data flow.

C. Both import and export policies affect ingress data flow.

D. Policy direction and data flow are independent.

What type of LSA is used to flood information about prefixes from one OSPF area to other attached areas?

A. Type 1

B. Type 3

C. Type 4

D. Type 7

An E-pipe is configured with a service MTU of 5000. What is the minimum MTU value that should be set on an access port for a dot1q encapsulated SAP on this service?

A. 5000

B. 5004

C. 5008

D. 5014

Which of the following is NOT a goal of BGP routing policies?

A. To protect external networks from instability.

B. To communicate the architecture of an AS to external ASs.

C. To protect the local AS and other external ASs from bad NLRI.

D. To optimize ingress and egress traffic patterns to best serve the users of the AS.

An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action is taken by the router?

A. The link state information is not populated in the database but is forwarded to all neighbors

B. The link state information already in the database is overwritten and the age is reset

C. The link state information is not populated in the database and an acknowledgement is sent

D. The link state information is regarded as old and nothing is done.

Exhibit

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

A. Both routers will generate OSPF Hello packets.

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

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

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

Click the exhibit button.

The OSPF adjacency between routers R3 and R1 is down. What is the problem?

A. Area 1 of router R1 should not be configured as a stub.

B. Router R3 has the incorrect authentication key type.

C. Router R1 has the incorrect authentication key type.

D. There is not enough information to tell.

Click on the exhibit.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. There are no stub or NSSA areas. Which of the following regarding LSAs is TRUE?

A. Router R3 will advertise Type 7 LSAs to Area 0 and Area 2.

B. Only routers R2 and R3 receive Type 5 LSAs advertised by router R1.

C. Router R2 will receive Type 5 and Type 7 LSAs.

D. Router R7 will receive Type 5 LSAs advertised by router R1.