4A0-C01 Online Practice Questions and Answers

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

A. Metric is based on hop count.

B. Slow convergence after link failures.

C. Support hierarchy through the use of areas.

D. Support for CIDR.

E. Link state updates sent using layer 3 multicast.

Click on the exhibit.

The numbers beside the links are the metrics for that link.

Given the diagram, what path will traffic follow from router R2 to router R8, and from router R8 to router R2, if IS-IS is the routing protocol?

A. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R5-R3-R2)

B. Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8). Router R8 to R2 will follow (R8-R7-R6-R4R3-R2)

C. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R6-R4-R3R2)

D. Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8) Router R8 to R2 will follow (R8- R7-R5-R3R2)

Which of the following about IS-IS is FALSE?

A. IS-IS uses the concept of Level 1 and Level 2 routers to implement hierarchy.

B. An IS-IS router belongs to one or more areas.

C. All Level 2 routers belong to the same area.

D. A Level 1 router forwards traffic to other areas through the nearest Level 1/2 router.

Which of the following statements is true of an established LDP session?

A. It uses a UDP connection with an arbitrary port number.

B. It uses a UDP connection with well known port number 646.

C. It uses a TCP connection with an arbitrary port number.

D. It uses a TCP connection with well known port number 646.

What is the primary purpose of variable length subnet masks (VLSM)?

A. To reduce the size of each routing update.

B. To allow interoperability between routing protocols.

C. To allow different subnet masks for different subnets.

D. To reduce the size of the routing table.

A mesh SDP is used to create an Fpipe service.

A. TRUE

B. FALSE

Click on the exhibit.

Router R2 advertises an OSPF summary route 10.10.10.0/24 into Area 1. Router R3 receives labels for individual FECs 10.10.10.2/32 and 10.10.10.4/32. These two FECs are installed in router R3's LIB but not in the LFIB. What needs to be done on router R3 to install these labels into its LFIB?

A. Disable route summarization on router R3.

B. Enable LDP aggregate prefix match.

C. Create an import policy to accept 10.10.10.2/32 and 10.10.10.4/32.

D. Disable LDP exact match on 10.10.10.2/32 and 10.10.10.4/32.

3 Epipe services and 2 VPLS services have been configured between two PE routers. How many service labels will be signaled in total?

A. 2

B. 3

C. 4

D. 5

E. 6

F. 10

Which of the following statements about SAPs that are part of a VPVVS is FALSE?

A. SAPs can be defined on Ethernet, POS, Sonet/SDH, or TDM channels.

B. Only one SAP is required for a service that originates and terminates on the same Alcatel-Lucent 7750 SR.

C. SAPs can have QoS policies assigned to them.

D. Multiple SAPs can be defined on the same port.

Which of the following best describes the flooding of traffic on a PE when unknown traffic is received on a mesh SDP?

A. Traffic is flooded to all SAPs in the service.

B. Traffic is flooded to all SAPs and spoke SDPs in the service.

C. Traffic is flooded to all SAPs and mesh SDPs in the service.

D. Traffic is flooded to all SAPs, spoke SDPs, and mesh SDPs in the service.

E. The traffic is not flooded.