Nokia NRS II Composite: IS-IS version v1.0
Question 1
Which of the following best describes a VPWS?
- A. Layer 3 direct Internet access service.
- B. Layer 2 point-to-point service.
- C. Layer 2 multipoint-to-multipoint service.
- D. Layer 3 IP multipoint-to-multipoint VPN service.
Answer : B
Question 2
Which protocol is used to signal the inner label for a Layer 2 VPN service?
- A. RSVP
- B. IPCP
- C. TLDP
- D. PPP
- E. Either RSVP or LDP
Answer : C
Question 3
Which of the following statements about the components of a distributed service on the Nokia 7750 SR is TRUE?
- A. A SAP can only be used by one service on a router.
- B. A dedicated SDP needs to be created for each service.
- C. A service is created on each site before the customer is created.
- D. SAPs must be created before a service is created.
Answer : A
Question 4
Which of the following statements about the E-pipe service is TRUE?
- A. The service is a local service.
- B. The service requires a second spoke SDP on this router.
- C. The service's VC ID is 44.
- D. The service will accept incoming frames with VLAN tag 100.
Answer : C
Question 5
An E-pipe is configured with a service MTU of 5000. What value will be derived for the VC-MTU?
- A. 4078
- B. 4986
- C. 5014
- D. 5022
Answer : B
Question 6
On a Nokia 7750 SR, which vc-type will forward service delimiting tags at the ingress PE?
- A. vc-type ether
- B. vc-type vlan
- C. vc-type dot1q
- D. vc-type null
Answer : B
Question 7
Consider an E-pipe service configured with SAP 1/1/1:5 and SAP 1/1/1:6.7. If the SAP 1/1/1:5 accepts an ingress frame, which of the following statements is TRUE?
- A. The frame egresses 1/1/1:6.7 with an outer VLAN tag of 6 and inner tag of 7.
- B. The frame is dropped at the egress SAP 1/1/1:6.7.
- C. The frame egresses 1/1/1:6.7 with VLAN tag 5.
- D. The frame egresses 1/1/1:6.7 with VLAN tag 6
Answer : B
Question 8
A service needs to accept frames that have the following: an outer VLAN tag of 200 with an inner VLAN tag of 33; and frames that have an outer VLAN tag of 250 with an inner VLAN tag of 33. What SAP(s) need to be configured?
- A. 1/1/1:200.*
- B. 1/1/1:*.33
- C. 1/1/1:*.*
- D. This requires two SAPs: 1/1/1:200.33 and 1/1/1:250.33.
Answer : D
Question 9
Which of the following statements best describes the flooding of traffic on a PE when unknown traffic is received on a SAP of a VPLS?
- 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.
Answer : D
Question 10
Which of the following statements best describes how a MAC FDB is populated in a VPLS service?
- A. A VPLS service does not use a MAC FDB.
- B. The router reads the destination MAC address of frames passing through the service.
- C. The router reads the source MAC address of frames passing through the service.
- D. The router uses reverse ARP (RARP) to resolve the MAC addresses for unknown destinations.
- E. The router is programmed with MAC addresses by the network administrator.
Answer : C
Question 11
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.
Answer : A
Question 12
Which of the following statements about an E-pipe terminating on a VPLS is FALSE?
- A. The VC-IDs used between the E-pipe and VPLS must match.
- B. The E-pipe must maintain a MAC FDB in order to connect to the VPLS.
- C. The service ID of the E-pipe can be different from that of the VPLS.
- D. The service MTU of the VPLS and E-pipe must match.
Answer : B
Question 13
On a Nokia 7750 SR, the OAM command 'svc-ping' can be used with options 'local-sdp' and 'remote-sdp'. Which of the following statements is TRUE?
- A. 'local-sdp' and 'remote-sdp' indicate that all services using these SDPs are pinged.
- B. 'local-sdp' and 'remote-sdp' indicate that pings are initiated from both local and remote routers.
- C. Both 'local-sdp' and 'remote-sdp' take parameters to specify which SDPs are used for the test.
- D. 'local-sdp' indicates that the ping is sent in-band, and 'remote-sdp' indicates the return ping is in-band.
Answer : C
Question 14
An operator at PEI wants to analyze the traffic between CE1 and PE1 on SAP 1/1/3. On a Nokia 7750 SR, which of the following is NOT required as part of the configuration?
- A. A mirror source with a defined source type.
- B. A mirror source defined with an SDP destination.
- C. A mirror destination with a SAP defined.
- D. A mirror destination and a mirror source with the same service ID.
Answer : B
Question 15
Which of the following statements about IES is FALSE?
- A. An IES provides a Layer 3 interface to a customer.
- B. A virtual routing/forwarding table is created per IES service.
- C. An IES supports QoS.
- D. An IES interface's IP address, if bound to a port, will appear in the routing table.
Answer : D