Latest Nokia 4A0-C02 Actual Free Exam Questions & Community Discussion, Page 1

Question #1

For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is TRUE?

A. All traffic exchanged between end-customers is carried over a single CSC VRF.

B. VPRN instances are created on the CSC-CE routers.

C. Customer carrier PEs residing in different sites must run MP-iBGP between them to exchange customers' routes.

D. The customer carrier network must be MPLS-enabled.

Discussion 0

Correct Answer: A Vote an answer

Question #2

Click the exhibit.

Over which BGP session will router B learn the 10.1.1.0/24 prefix?

A. Router B will learn the prefix over all of the sessions, then it will choose the best route.

B. The session between router D and router B.

C. The session between router C and router B.

D. The session between router A and router B.

Discussion 0

Correct Answer: D Vote an answer

Question #3

Click on the exhibit below.

Assume the port on CE-A is sending two tags, a top tag of 100 and a bottom tag of 500. PE-A is configured with a SAP id of 1/1/1:100.*. How should PE-B be configured if CE-B is expecting a top tag of 200 and a bottom tag of 500?

A. PE-B will require a SAP id of "sap 1/1/1:200*".

B. PE-B will require a SAP id of "sap 1/1/1:500*".

C. PE-B will require a SAP id of "sap 1/1/1:500.200".

D. PE-B will require a SAP id of "sap 1/1/1:100*".

Discussion 0

Correct Answer: A Vote an answer

Question #4

Which of the following are categories of forwarding classes on the Alcatel-Lucent 7750 SR? (Choose two)

A. Non-conforming

B. In-profile

C. Real-time

D. High priority

E. Assured

Discussion 0

Correct Answer: C,D Vote an answer

Question #5

Click the exhibit button below. Given that the slope-policy (below) has been enabled and applied on a network port, which of the following statements are TRUE? (Choose three)

A. All out-of-profile traffic will be dropped before any in-profile is dropped.

B. The highest probability with which an out-of-profile packet can be dropped is 20%.

C. The time average factor of 0 will discard all packets arriving in the shared buffer pool.

D. When an in-profile packet arrives and the shared buffer utilization is at 69%, the packet will have approximately a 60% likelihood of being discarded.

E. When the shared buffer utilization reaches 51%, in-profile packets might be dropped.

Discussion 0

Correct Answer: A,D,E Vote an answer

Question #6

In a Carrier Supporting Carrier (CSC) VPRN, which of the following is a benefit to the customer carrier?

A. The ability to maintain its own backbone.

B. There is no need to manage end-customer services.

C. The ability to offer Internet connectivity and a variety of services over a single CSC VPRN interface.

D. The ability to learn system addresses of network provider PEs.

Discussion 0

Correct Answer: C Vote an answer

Question #7

Which of the following statements about the default scheduler in the Nokia 7750 SR is TRUE?

A. A queue will be serviced as expedited if at least one of the forwarding classes mapped to it is expedited, regardless of its configured type.

B. A queue will be serviced as expedited if its type is configured as expedited, regardless of the forwarding classes mapped to it.

C. A queue will be serviced as expedited if all of the forwarding classes mapped to it are expedited, regardless of its configured type.

D. A queue will be serviced as best-effort if all of the forwarding classes mapped to it are best-effort, regardless of its configured type.

Discussion 0

Correct Answer: B Vote an answer

Question #8

Which of the following about self-generated traffic QoS is TRUE?

A. DSCP bits can be set per application, per routing instance.

B. The internal forwarding class for self-generated traffic is set once and applied to the base router and all VPRN instances.

C. Self-generated traffic can be marked at Layer 2 no matter what encapsulation is used on the network interfaces.

D. The DSCP marking stays ncl for all applications; only the internal forwarding class is manipulated across different applications.

Discussion 0

Correct Answer: B Vote an answer

Question #9

Click the exhibit.

The headquarter sites of VPRN 10 and VPRN 20 are part of an extranet VPRN. Which route targets should be exported under the VPRN 20 service on router R1?

A. Target:65100:1 and target:65100:2

B. Target:65100:2 and target:65100:3

C. Target:65100:1, target:65100:2 and target:65100:3

D. Target:65100:1 and target:65100:3

Discussion 0

Correct Answer: B Vote an answer

Question #10

Click the exhibit.

Routers RR1 and RR2 are configured as route reflectors. For the inter-AS model C VPRN, which of the following about the VPN-IPv4 route advertisement is FALSE?

A. RR1 advertises the VPN-IPv4 route update of 192.1.1.0/27 to RR2

B. RR2 advertises the VPN-IPv4 route update of 192.2.1.0/27 to RR1

C. PE1 advertises the VPN-IPv4 route update of 192.1.1.0/27 to RR1 and ASBRL

D. RR2 advertises the VPN-IPv4 route update of 192.1.1.0/27 to PE2

Discussion 0

Correct Answer: C Vote an answer

Question #11

If the max remote-age timer of a B-VPLS is reached, what happens to the remotely learned MAC addresses in the l-VPLS service?

A. By default, the remote-age timer of the B-VPLS is configured to 0 and addresses do not age out. The l-VPLS uses its own timer.

B. There is no effect. The MAC addresses for the l-VPLS age out independently of the aging of B-VPLS addresses.

C. The MAC addresses for the l-VPLS will age out immediately following the remote-age out of the backbone-macs of the B-VPLS.

D. The same timer is used for B-VPLS and l-VPLS addresses on the node.

Discussion 0

Correct Answer: C Vote an answer

Question #12

What happens to a route that is rejected by an import policy on an Alcatel-Lucent 7750 SR?

A. The route is moved to the LOC-RIB, but not marked as a used route.

B. The route is kept in the RIB-In, but marked as an invalid route.

C. The route is discarded.

D. The route is moved to the route table, but not to the FIB.

Discussion 0

Correct Answer: B Vote an answer

Question #13

What will happen if an update is received with an unrecognized optional non-transitive attribute?

A. The router will not accept the update and send a notification.

B. The router will accept the update and send a notification.

C. The router will accept the update and ignore the attribute.

D. The router will accept the update and propagate the attribute.

Discussion 0

Correct Answer: C Vote an answer

Question #14

BGP is configured on two peers, routers A and B.
Router A is configured with a Hold Time timer of 60 seconds and a Keepalive timer of 25 seconds. Router B is configured with a Hold Time timer of 90 seconds and a Keepalive timer of 70 seconds. What will the active Keepalive timer be on router B?

A. 30 seconds

B. 25 seconds

C. 70 seconds

D. 20 seconds

Discussion 0

Correct Answer: D Vote an answer

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