Certification Training for 4A0-C04 Exam Dumps Test Engine [2022]
Feb 22, 2022 Step by Step Guide to Prepare for 4A0-C04 Exam
NEW QUESTION 85
When an OSPF adjacency is stuck in the "ExchStart" state, what is the most likely cause?
- A. OSPF is not enabled on one of the routers
- B. The Router ID is the same on both routers
- C. A OSPF Hello has not been received from the neighbor
- D. The MTU does not match on both interfaces
Answer: D
NEW QUESTION 86
A confederated AS is comprised of three members. One member is comprised of 4 routers, while the other two members are comprised of 3 routers each. Assuming member ASs are fully meshed and use full mesh iBGP, what is the required number of BGP sessions within the confederation?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 87
What is the function of the Cluster_List attribute?
- A. It is used to identify the route reflectors within an AS.
- B. It is used for loop detection within the same cluster.
- C. It is used for loop detection in a confederation.
- D. It is used for loop detection between clusters.
Answer: D
NEW QUESTION 88
Initially, all ports on an Nokia 7750 SR have 10Gbps bandwidth. RSVP configuration limits reservable bandwidth to 30 percent on all interfaces. An LSP is signaled reserving 1 Gbps bandwidth. How much unreserved bandwidth is left on the interface?
- A. 7 Gbps
- B. 10 Gbps
- C. 3 Gbps
- D. 2 Gbps
Answer: D
NEW QUESTION 89
Which of the following about VPN labels is FALSE?
- A. They indicate to the egress PE the VPRN to which a packet belongs.
- B. They are swapped at each P router as a packet crosses the service provider network.
- C. They are signaled between PE devices using MP-BGP.
- D. They are also known as the inner label or service label.
Answer: B
NEW QUESTION 90
In an OSPF environment, what must a router receive after it sends out an update?
- A. The router must receive a Hello
- B. The router must receive a new sequence number
- C. The router must receive a Link State Packet
- D. The router must receive an acknowledgment
Answer: D
NEW QUESTION 91
Which of the following about SDPs is FALSE?
- A. An SDP can simultaneously support GRE and MPLS encapsulation.
- B. A single SDP can carry different types of services.
- C. An SDP can use the system IP address to indicate the far-end router.
- D. An SDP is not required for a local service.
Answer: A
NEW QUESTION 92
Which of the following is a characteristic of a VPLS?
- A. Multiple VPLSes on the same router share a single MAC FDB.
- B. An additional T-LDP session is required between PEs for each additional VPLS that is provisioned.
- C. When a new site is added, all the existing sites need to be shutdown and re-provisioned.
- D. All SAPs of a VPLS belong to the same broadcast domain.
Answer: D
NEW QUESTION 93
Graceful Restart is supported by what IGPs?
- A. IS-IS
- B. RIPv1 and RIPv2
- C. BGP
- D. OSPF
Answer: A,D
NEW QUESTION 94
Which of the following about RSVP-TE is FALSE?
- A. It supports LSPs with traffic engineering constraints.
- B. It supports LSPs that follow the IGP best path.
- C. It supports traffic protection using IGP equal cost paths.
- D. It supports CAC to prevent resource overbooking.
Answer: C
NEW QUESTION 95
What happens by default on an Nokia 7750 SR when a null encapsulated SAP receives a frame with a VLAN tag?
- A. The VLAN tag is kept and a provider tag is added.
- B. The original VLAN tag is removed.
- C. The VLAN tag is replaced by a provider tag.
- D. The original VLAN tag is kept.
Answer: D
NEW QUESTION 96
Which of the following prefix lists include prefixes 192.168.128.0/17 and 192.168.64.0/18?
- A. Prefix list 192.168.0.0/16 through 18.
- B. Prefix 192.168.0.0/17 longer.
- C. Prefix 192.160.0.0/13 longer.
- D. Prefix list 192.168.0.0/17 through 18.
Answer: A
NEW QUESTION 97
Choose the Distance Vector Protocols from the list below:
- A. IS-IS
- B. RIPv1
- C. RIPv2
- D. OSPF
Answer: B,C
NEW QUESTION 98
An OSPF adjacency is stuck in the exstart state. What is the most likely cause?
- A. The interfaces are configured as point-to-point on one side and broadcast on the other.
- B. The router ID is the same on both routers.
- C. The MTU does not match on both interfaces.
- D. OSPF is not enabled on one of the routers.
- E. An OSPF Hello has not been received from the neighbor.
Answer: C
NEW QUESTION 99
Which of the following is NOT a characteristic of RIPv1?:
- A. Poison Reverse
- B. Classless routing
- C. Broadcast advertisement
- D. 30 second network updates
Answer: B
NEW QUESTION 100
Click the exhibit button.
What can you deduce from the show command on router R6?
- A. The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment.
The DR for this segment would be the router with router ID 10.10.10.5. - B. The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment.
The DR for this segment would be the router with router ID 10.10.10.3. - C. The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment; however, this command does not indicate whether 10.10.10.3 or 10.10.10.5 is the DR or BDR.
- D. The router R6 interface is in a multi-access segment. It is the BDR, which is why it is not adjacent to the other routers.
Answer: C
NEW QUESTION 101
Assuming that "client1" and "client2" are directly-connected networks, what is the result of executing the following BGP export policy?
- A. "client1" routes will be tagged with community "West".
- B. "client1" routes will be tagged with community "North".
- C. "client1" routes will be rejected.
- D. "client1" routes will be tagged with communities "North" and "West".
Answer: B
NEW QUESTION 102
Which utility on the Nokia 7750 SR can be used to investigate an MPLS path?
- A. Idp-trace
- B. Ping
- C. Svc-ping
- D. Sdp-ping
- E. Isp-trace
Answer: E
NEW QUESTION 103
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding Type 4 LSA generation is true?
- A. Router R3 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.
- B. Router R3 generates a Type 4 LSA that is flooded to area 0, and router R6 generates a Type 4 LSA that is flooded to area 2.
- C. Router R3 generates a Type 4 LSA that is flooded to areas 0 and 2.
- D. Router R1 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.
Answer: B
NEW QUESTION 104
Which of the following about Type 10 opaque LSAs is TRUE?
- A. Type 10 opaque LSAs are flooded to all areas of the routing domain.
- B. Type 10 opaque LSAs are supported by IS-IS.
- C. Type 10 opaque LSAs are used for traffic engineering support.
- D. Type 10 opaque LSAs are stored in an LSDB.
Answer: C
NEW QUESTION 105
Click on the exhibit.
An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled, what happens immediately after the link is restored?
- A. A new LDP session is established on R1-R3-R6 as soon as the FIB is updated.
- B. A new LDP session is established on R1-R3-R6 as soon as router R1 receives a new label for router R6.
- C. The LDP session remains unchanged until router R3 stops advertising the maximum metric for the link to router R6.
- D. The LDP session remains unchanged until the existing path R1-R2-R4-R6 goes down.
Answer: C
NEW QUESTION 106
Which MPLS label mode saves label mappings received from all peer LSRs?
- A. Downstream on demand
- B. Conservative label retention
- C. Downstream unsolicited
- D. Liberal label retention
Answer: D
NEW QUESTION 107
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