Updated Nov-2021 Pass 4A0-C01 Exam - Real Practice Test Questions
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NEW QUESTION 79
Which utility on the Alcatel-Lucent 7750 SR can be used to investigate an MPLS path?
- A. Sdp-ping
- B. Isp-trace
- C. Svc-ping
- D. Idp-trace
- E. Ping
Answer: B
NEW QUESTION 80
Two IS-IS L1/L2 routers are in the same area on the same Ethernet segment.
How many adjacencies will be formed between them?
- A. 0
- B. 1
- C. 2
- D. None
- E. 3
Answer: C
NEW QUESTION 81
Which of the following about RSVP-TE is TRUE?
- A. RSVP-TE generates a TED for storing traffic engineering information.
- B. RSVP-TE requests end-to-end resources for unidirectional data flow.
- C. RSVP-TE is a routing protocol.
- D. RSVP-TE consults the local RSVP database to determine the path from source to destination.
Answer: B
NEW QUESTION 82
Which of the following statements best describes how an FDB is populated with MAC addresses in a VPLS service?
- A. The router is programmed with MAC addresses by the network administrator.
- B. A VPLS service does not use an FDB.
- C. The router reads the destination MAC address of packets passing through the service.
- D. The router reads the source MAC address of packets passing through the service.
- E. The router uses reverse ARP (RARP) to resolve the MAC addresses for unknown destinations.
Answer: D
NEW QUESTION 83
A mesh SDP is used to create an Fpipe service.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 84
Which of the following commands is used to enable an E-pipe service?
- A. config>service= epipe <service-id> enable
- B. config>service= <service-id> no shutdown
- C. config>port= <port-id> no shutdown
- D. config>service~ vpws <service-id> enable
- E. config>service= epipe <service-id> no shutdown
Answer: E
NEW QUESTION 85
Which of the following regarding MPLS Encapsulation is FALSE?
- A. The service provider's Layer 2 header is added at the iLER for Layer 3 services.
- B. The customer's Layer 2 Header is preserved at the iLER for Layer 3 services.
- C. The customer's Layer 2 header is preserved at the iLER for Layer 2 services.
- D. The service provider's Layer 2 header is added at the iLER for Layer 2 services.
Answer: B
NEW QUESTION 86
If the OSPF reference bandwidth is set to 1000 Gbps.
What is the cost of a 1 Gbps interface?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 87
Click on the exhibit.
Under which condition might the peer entry with an LDP ID .10.10.2:0 show the state "Nonexistent"?
- A. When router R1 has no route to the peer address 10.10.10.2.
- B. When the targeted session is not configured.
- C. When the interface to the peer router is down.
- D. When LDP is not configured on the peer router's interface.
Answer: A
NEW QUESTION 88
Which of the following best describes the actions taken by an IS-IS router after it receives an LSP on a broadcast interface that is newer than the one in its database?
- A. The router sends a copy of the LSP from its database to its neighbor.
- B. The router updates its database with the LSP and acknowledges it with a PSNP.
- C. The router updates its database with the LSP and floods a copy to its other neighbors.
- D. The router updates its database with the LSP, acknowledges the LSP with a PSNP and floods a copy to its other neighbors.
Answer: C
NEW QUESTION 89
Click on the exhibit.
An LDP-over-RSVP tunnel is established between PE-1 and PE-2.
Which of the following is NOT required to protect the LDP-over-RSVP tunnel?
- A. PE-1 requires fast reroute enabled on all RSVP-TE LSPs.
- B. PE-1 requires T-LDP sessions to both ABR-1 and ABR-2.
- C. PE-1 requires a full mesh of RSVP-TE LSPs to all routers in area 1.
- D. ABR-1 requires T-LDP sessions to all ABRs in area 0.
Answer: C
NEW QUESTION 90
Exhibit Given the two configurations shown, identify the two incorrect statements below: (Choose two)
- A. The interface type settings differ, but OSPF will still operate correctly.
- B. Metric values differ, but this does not prevent OSPF operation.
- C. The system interface is missing in one configuration so OSPF will not operate correctly.
- D. Both routers will generate OSPF Hello packets.
Answer: A,C
NEW QUESTION 91
Which of the following LDP settings can be changed with CLI?
- A. Control mode
- B. Label retention
- C. Label space mode
- D. Keepalive factor
Answer: D
NEW QUESTION 92
On an Alcatel-Lucent 7750 SR, the OAM command 'svc-ping' can be used with options bcal-sdp' and 'remote-sdp'.
Which of the following is TRUE?
- A. Both 'Iocal-sdp' and 'remote-sdp' take parameters to specify which SDPs are used for the test.
- B. 'Iocal-sdp' and remote-sdp' indicate that pings are initiated from both local and remote routers.
- C. 'Iocal-sdp' indicates that the ping is sent in-band, and remote-sdp' indicates the return ping is in-band.
- D. iocal-sdp' and 'remote-sdp' indicate that all services using these SDPs are pinged.
Answer: C
NEW QUESTION 93
Which of the following commands is used to configure a new MPLS SDP?
- A. configure service sdp sdp-id mpls create
- B. configure router sdp sdp-id
- C. configure service sdp sdp-id create
- D. configure service mpls sdp sdp-id create
- E. configure service gre sdp sdp-id create
Answer: A
NEW QUESTION 94
When a physical port is configured for null encapsulation, many SAPs can be configured using that port.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 95
Which one of the commands below will create a static route to network 2.3.4.0/24 on the AlcatelLucent 7750 SR router?
- A. Static-route next-hop 3.4.5.6 2.3.4.0/24
- B. Static route 2.3.4.0/24 next hop 3.4.5.6
- C. Static-route 2.3.4.0/24 next-hop 3.4.5.6
- D. Static route 2.3.4.0 255.255.255.0 next hop 3.4.5.6
Answer: C
NEW QUESTION 96
Assume that, on the Alcatel-Lucent 7750 SR, an LSP is configured with one-to-one FRR and node protection.
Which of the following statements are FALSE? (Choose two)
- A. The label recording desired flag must be set in the session attribute object in order for the PLR to know what label to swap when using the detour LSP.
- B. The merge point of the protected LSP must be the next-next-hop node
- C. Each PLR signals a detour LSP that avoids the downstream node. If the downstream node cannot be avoided, a detour LSP that avoids the downstream link is signaled.
- D. The detour LSP can take one or more hops before merging back on the protected LSP.
- E. The ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish detour LSPs.
Answer: A,B
NEW QUESTION 97
On an Alcatel-Lucent 7750 SR, which of the following about IES interfaces is FALSE?
- A. An IES interface can have an SDP or a SAP.
- B. An IES can only have one interface.
- C. An IES can perform fragmentation.
- D. An IES must have an IP address assigned to it.
Answer: B
NEW QUESTION 98
Which of the following about the Alcatel-Lucent 7750 SR sdp-ping is TRUE?
- A. It tests the reachability of hosts connected to an SDP.
- B. It tests that the MTU settings of a service are correct.
- C. It tests in-band, uni-directional or round-trip connectivity of SDPs.
- D. It tests the IGP reachability of the far-end IP address of an SDP.
Answer: C
NEW QUESTION 99
Click on the exhibit.
RSVP state for LSP 1 has timed out on router R3.
Which of the following actions will router R3 initiate to clear the RSVP session?
- A. Send a RESV Tear message toward router R6.
- B. Send a RESV Error message toward router R6.
- C. Send a RESV Tear message toward router R1.
- D. Send a RESV Error message toward router R1.
Answer: C
NEW QUESTION 100
On a dot1Q encapsulated port, frames with a VLAN tag of 0 and untagged frames are forwarded to the null SAP
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 101
Click the exhibit.
Based on this output from PE router R1, how many other PEs are participating in the VPRN?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 102
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