[2022] Free 4A0-C01 Exam Dumps to Pass Exam Easily
4A0-C01 Exam Dumps, 4A0-C01 Practice Test Questions
NEW QUESTION 313
Which of the following is a characteristic of a VPLS?
- A. Multiple VPLSes on the same router share a single MAC FDB.
- B. All SAPs of a VPLS belong to the same broadcast domain.
- C. An additional T-LDP session is required between PEs for each additional VPLS that is provisioned.
- D. When a new site is added, all the existing sites need to be shutdown and re-provisioned.
Answer: B
NEW QUESTION 314
A new router is added to a broadcast network.
What is used by IS-IS as the tie breaker for selecting the DIS if the priorities are the same?
- A. The Hello packet with the highest sequence number.
- B. The router with the highest system ID.
- C. The router with the highest interface MAC address.
- D. The router with the highest loopback address.
- E. The existing DIS remains the DIS.
Answer: C
NEW QUESTION 315
Click the exhibit.
Which tool produced this output?
- A. svc-ping
- B. traceroute
- C. mac-trace
- D. Isp-trace
Answer: D
NEW QUESTION 316
Which of the following about VPRN route targets is FALSE?
- A. Route targets are communicated between PEs that are part of a specific VPRN.
- B. Route targets identify the VRF that a VPN-IFV4 prefix is associated with.
- C. Route targets are carried in MP-BGP updates.
- D. Route targets identify the egress SAP of a service towards a CE.
Answer: D
NEW QUESTION 317
LDP is enabled on both ends of a point-to-point link, but the "show router Idp status" command indicates that LDP is operationally down. The Oper Down Reason field shows the message "systemIpDown."
What might cause this condition?
- A. The router's system interface requires an IP address
- B. The LSP is in the administrative down state.
- C. The router's router ID overlaps another.
- D. The router's interfaces do not have LDP running.
Answer: A
NEW QUESTION 318
An SDP using GRE encapsulation is configured for an E-pipe service. The network port used by the SDP has an MTU 0.
What value does the SDP path MTU have by default on an Alcatel-Lucent 7750 SR?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 319
Which of the following about ADSPEC is FALSE?
- A. ADSPEC sets an SDP's MTU to the smallest MTU value found along the LSP path.
- B. ADSPEC can automatically adjust the service MTU.
- C. RSVP must be enabled on all MPLS routers of a path to use ADSPEC.
- D. ADSPEC can be enabled on individual LSPs.
Answer: B
NEW QUESTION 320
What type of OSPF router generates a type 2 LSA?
- A. Designated Router
- B. Autonomous System Boundary Router
- C. Area Border Router
- D. All routers within an OSPF area.
Answer: A
NEW QUESTION 321
Which of the following about VPLS MAC learning is TRUE?
- A. Mesh SDPs assist MAC learning by flooding traffic to other mesh SDPs.
- B. A PE keeps a single FDB for all VPLSes it has.
- C. Frames received on a SAP that are broadcast, multicast or unknown are flooded.
- D. The FDB only stores the MAC addresses of remote sites.
Answer: C
NEW QUESTION 322
Click the exhibit button
The 192 168 3.0/24 network is learned on router R1 via IS-IS Given the OSPF configuration shown, and assuming that the OSPF adjacency between routers R1 and R3 is up, why is the 192 168.3.0/24 route not in router R3's route table? (Choose two)
- A. The route policy is incorrect. It should say "from protocol ISIS" rather than "from protocol direct".
- B. The interface between routers R1 and R3 needs to be in OSPF area 0 rather than OSPF area 1 because a backbone area must always exist.
- C. It is not possible to be an ASBR and an NSSA. The ASBR configuration should be removed.
- D. The no-redistribute-external command is used on router R1
- E. The route policy should be applied as in import policy
Answer: A,D
NEW QUESTION 323
Which of the following about RSVP-TE on an Alcatel-Lucent 7750 SR is TRUE?
- A. Label bindings are distributed if labels have not been received from downstream routers.
- B. All labels received from downstream neighbors are stored in the LIB.
- C. Label bindings are distributed to all neighbors including non-downstream routers.
- D. Label bindings are distributed to other routers when explicitly requested.
Answer: D
NEW QUESTION 324
Which of the following best describes how a MAC FDB is populated in a VPLS service?
- A. The router is programmed with MAC addresses by the network administrator.
- B. A VPLS service does not use a MAC FDB.
- C. The router reads the source MAC address of frames passing through the service.
- D. The router reads the destination MAC address of frames passing through the service.
- E. The router uses reverse ARP (RARP) to resolve the MAC addresses for unknown destinations.
Answer: C
NEW QUESTION 325
Once a service has been created with a customer association, it is possible to change the customer association.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 326
Which of the following commands would be used to show the operational state of all IES services?
- A. show service service-using ies
- B. show service id 5 base
- C. show service id 5
- D. show service ies
Answer: A
NEW QUESTION 327
What are some of the characteristics of Alcatel-Lucent's implementation of non-stop routing? (Choose two)
- A. Transparent to routing neighbors
- B. No protocol extensions required
- C. Uses Graceful Restart to inter-operate with other vendors
- D. Only supported by OSPF and IS-IS
Answer: A,B
NEW QUESTION 328
Click on the exhibit button below.
Consider the following:
- Routers R1 and R4 are in Area 1.
- Routers R4 and R5 in Area 0.
- Routers R5 and R3 are in Area 2.
To support LDP-over-RSVP tunnels between routers R1 and R3 over path R1-R4-R5-R3, with which routers will router R5 require targeted sessions? (Choose two)
- A. Router R2
- B. Router R1
- C. Router R3
- D. Router R4
Answer: C,D
NEW QUESTION 329
NSSA LSA packets are what type within an NSSA area, and are converted to what other type at the ABR?
- A. They are type 5 within the area and are not modified at the ABR
- B. They are type 7 within the area and converted to type 5 at the ABR
- C. They are type 5 within the area and converted to type 3 at the ABR
- D. They are type 7 within the area and are not modified at the ABR
Answer: B
NEW QUESTION 330
Click on the exhibit.
The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS routing so that the IPv6 system addresses are also exchanged between routers.
After IPv6 has been configured, which of the following is TRUE?
- A. Router R2 has two IS-IS-adjacencies and four LSPs.
- B. Router R2 has two IS-IS-adjacencies and three LSPs.
- C. Router R2 has two IS-IS-adjacencies and two LSPs.
- D. Router R2 has four IS-IS-adjacencies and six LSPs.
Answer: B
NEW QUESTION 331
Which of the following about IS-IS level hierarchies is FALSE?
- A. Level 2 routers interconnect the Level 1 areas.
- B. There must be a contiguous Level 2 backbone to enable routing throughout the entire network.
- C. Level 1 routers send packets to the nearest L1/L2 router if the destination is in a different area
- D. Level 2 routers store the Level 1 and Level 2 topology information in a single database.
Answer: D
NEW QUESTION 332
Which of the following about Hierarchical VPLS is FALSE?
- A. They allow a service to span multiple metro networks.
- B. They allow a VPLS to scale more easily.
- C. They use mesh SDPs to connect smaller VPLSes together.
- D. They simplify the configuration required when adding new PEs.
Answer: C
NEW QUESTION 333
Which of the following conditions are necessary in order for service labels to be signaled between two PE routers? (Choose 3)
- A. The SDP ID must match between the two PE routers in both directions.
- B. The VC-ID must match between the two PE routers in both directions.
- C. Traffic engineering must be enabled in the IGP.
- D. RSVP must be enabled on both PE routers.
- E. The transport tunnel must be operationally up between the two PE routers in both directions.
- F. LDP must be enabled on both PE routers.
Answer: B,E,F
NEW QUESTION 334
Which of the following about SAPs is FALSE?
- A. A SAP is the subscriber's point of entry to the service network.
- B. A SAP can only be created on a port configured as "access".
- C. A SAP is created by specifying a physical port and an encapsulation type.
- D. A SAP can be associated with more than one service.
Answer: D
NEW QUESTION 335
Which command can be used to verify the LDP settings for label distribution and retention?
- A. show router ldp default
- B. show router mpls label-options
- C. show router ldp settings
- D. show router mpls settings
- E. show router ldp parameters
Answer: E
NEW QUESTION 336
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