Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 111:

  By default, what does the Alcatel-Lucent 7750 SR do when a frame with an unknown destination address is received in a VPLS?

  A. It drops the frame.

  B. It floods the frame to all PEs participating in the service.

  C. It sends a destination unreachable message back to the originating host.

  D. It sends the frame to the closest neighbor.

  Correct Answer: B

• Question 112:

  Click the exhibit.

  

  The CEs use BGP and export policies to advertise their local prefixes with the VPRN on their PEs. If the VPRN is functioning properly, which of the following commands will succeed when performed on router R1?

  A. "ping 192.168.20.1"

  B. "oam vprn-ping 100 source 192.168.10.1 destination 192.168.20.1"

  C. "oam vprn-ping 100 source 192.168.20.1 destination 192.168.10.1"

  D. "ping 10.10.10.6" (router R6's system IP)

  Correct Answer: B

• Question 113:

  Consider an E-pipe service configured with SAP 1/1/1:5 and SAP 1/1/1:6. If the SAP 1/1/1:5 accepts an ingress frame, which of the following is TRUE?

  A. The frame egresses from 1/1/1:6 with no VLAN tag.

  B. The frame egresses from 1/1/1:6 with VLAN tag 5.

  C. The frame egresses from 1/1/1:6 with VLAN tag 6.

  D. The frame egresses from 1/1/1:6 with an inner VLAN tag of 5 and an outer VLAN tag of 6.

  Correct Answer: C

• Question 114:

  A CE is connected to an IES interface. Which of the following is TRUE?

  A. The IES's interface must be an IGP peer with the CE.

  B. The IES must use an IP address that is different than the C?

  C. The IES can only include one SAP for the CE.

  D. The IES must include a network port.

  Correct Answer: B

• Question 115:

  On a dot1Q encapsulated port, frames with a VLAN tag of 0 and untagged frames are forwarded to the null SAP

  A. TRUE

  B. FALSE

  Correct Answer: A

• Question 116:

  On an Alcatel-Lucent 7750 SR, which of the following about IES interfaces is FALSE?

  A. An IES can only have one interface.

  B. An IES interface can have an SDP or a SAP.

  C. An IES can perform fragmentation.

  D. An IES must have an IP address assigned to it.

  Correct Answer: A

• Question 117:

  Which of the following best describes a MAC FDB used by a VPLS service?

  A. A VPLS service does not use a MAC FDB.

  B. A single MAC FDB is shared by all VPLS services on a PE.

  C. A separate MAC FDB is used on the PE for each VPLS service.

  D. Each VPLS service uses a separate MAC FDBs for unicast and multicast traffic.

  Correct Answer: C

• Question 118:

  Click the exhibit. This output is from router R4. Service 333 is a VPLS. Why might the peer 10.10.10.1 have the same value for IngLbl and EgrLbl?

  A. The labels are of local significance only, so other routers can use the same value.

  B. 10.10.10.1 has yet to send its own unique label.

  C. Router R4 is using the same tunnel to send and receive to 10.10.10.1.

  D. The service on 10.10.10.1 is down, so it is rejecting packets.

  Correct Answer: A

• Question 119:

  Which one of the following commands on an Alcatel-Lucent 7750 SR can take a FEC as a parameter to verify if a packet for that FEC reaches the appropriate LER?

  A. ping

  B. sdp-ping

  C. svc-ping

  D. Isp-ping

  Correct Answer: D

• Question 120:

  Click the exhibit.

  

  PE1 and PE2 are Alcatel-Lucent 7750 SRs. What needs to be added to PE1's configuration to mirror traffic between PE2 and the customer site?

  A. A "remote-source" needs to be added to the mirror destination on PEL

  B. A mirror source needs to be added to PE1 with a "remote-source".

  C. This is not possible since the protocol analyzer is located at the Central Office. It needs to be at the customer site.

  D. A mirror source with SAP 1/1/2 needs to be added on PEL

  Correct Answer: A