[Jan-2022] Nokia 4A0-C01 Exam: Basic Questions With Answers
New 2022 Realistic Free Nokia 4A0-C01 Exam Dump Questions & Answer
Nokia 4A0-C01 Exam Syllabus Topics:
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NEW QUESTION 145
An E-pipe is configured with a service MTU 0.
What is the minimum MTU value that should be set on an access port for a dot1q encapsulated SAP on this service?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 146
A router receives an OSPF database description packet from a neighbor that references an LSA, which is already in the router's LSDB. The sequence number in the DBD packet is lower than the sequence number of the LSA in the LSDB.
What action does the router take?
- A. The router updates the information in its LSDB with the information received from its neighbor.
- B. The router takes no action.
- C. The router sends a link-state acknowledgement to its neighbor.
- D. The router sends a link-state update to its neighbor.
- E. The router sends a link-state request to its neighbor.
Answer: D
NEW QUESTION 147
Which of the following statements regarding RSVP path messages on an Alcatel-Lucent SR is true?
- A. The IP header HOP object reflects the upstream router's egress interface address.
- B. The IP header source address is the sender's egress interface address.
- C. The IP header destination address is the next-hop interface address.
- D. The path message's IP header options field sets the router alert option.
Answer: D
NEW QUESTION 148
Which of the following about T-LDP is FALSE?
- A. T-LDP supports sessions between non-directly connected devices.
- B. T-LDP Hello messages are sent to a multicast address.
- C. Link-based and T-LDP sessions may be configured on the same LSR.
- D. T-LDP can be configured between directly connected devices.
Answer: B
NEW QUESTION 149
An E-pipe is configured with a service MTU 0.
What MTU value should be set on the access port for a Q-in-Q encapsulated SAP?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 150
A VPLS has a service MTU.
To create an IES spoke termination to the VPLS, what ip-mtu value must be used for the IES?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 151
Which of the following statements is NOT a valid reason to use MP-BGP as a routing protocol to transport VPRN routes?
- A. The number of VPRN routes can become very large. MP-BGP can support a very large number of routes.
- B. MP-BGP can carry additional information attached to a route as an optional BGP attribute.
- C. All of the above statements are valid reasons for using MP-BGP as a VPRN routing protocol.
- D. MP-BGP can carry routing information for a number of different address families.
- E. MP-BGP is designed to exchange information between routers that are not directly connected. This feature keeps VPRN routing information out of P-routers.
Answer: C
NEW QUESTION 152
A static route is created using the command "static-route 2.3.4.0/24 next-hop 1.2.3.4".
What is the correct traceroute command to test this static route on an Alcatel-Lucent 7750 SR?
- A. traceroute 2.3.4.0/24 next-hop 1.2.3.4
- B. traceroute 2.3.4.1
- C. traceroute does not work on the Alcatel-Lucent 7750 SR
- D. traceroute next-hop 1.2.3.4
Answer: B
NEW QUESTION 153
Two IS-IS routers are exchanging Hello packets with different authentication types.
Which of the following is TRUE?
- A. The two routers negotiate the authentication type and then reach the up state.
- B. An adjacency will not be formed.
- C. Only an L2 adjacency will form, as long as both routers are L2 capable.
- D. Different authentication types are not possible because IS-IS only supports password authentication.
Answer: B
NEW QUESTION 154
Consider a device that uses per-platform label space; which of the following fields is NOT contained in the LFIB?
- A. Incoming interface
- B. Incoming label
- C. Outgoing label
- D. Outgoing interface
Answer: A
NEW QUESTION 155
Click the exhibit.
The output is from PE router R1 about VPRN service 100.
From which protocol did router R1 learn the prefix 192.168.20.0/24?
- A. MP-BGP
- B. LDP
- C. BGP
- D. MPLS
Answer: A
NEW QUESTION 156
Which of the following statements are FALSE regarding the VPN-IPv4 address family? (Choose 2)
- A. The route distinguisher (RD) is appended to the IPv4 prefix to form a 16 byte VPN-IPv4 prefix.
- B. VPN-IPv4 allows BGP to distinguish multiple routes with the same prefixes originated from distinct customers
- C. In VPRN, data traffic is carried in VPN-IPv4 packets.
- D. When a PE router receives an IPv4 prefix from its local CE it creates a VPN-IPv4 prefix.
- E. VPN-IPv4 addresses are only present within the service provider network.
Answer: A,B
NEW QUESTION 157
Which of the following statements regarding LSP path configuration are true? (Choose three)
- A. The path may be used multiple times in a single LSP.
- B. The path must define the LSP's tail end.
- C. The path must include at least one hop.
- D. The path may be used for multiple LSPs.
- E. The path may comprise loose hop entries only.
Answer: D,E
NEW QUESTION 158
In an OSPF environment, what must a router receive after it sends out an update?
- A. The router must receive a Link State Packet
- B. The router must receive a Hello
- C. The router must receive a new sequence number
- D. The router must receive an acknowledgment
Answer: D
NEW QUESTION 159
The following are statements about fields in the Hello packet that must match in order to form an OSPF adjacency.
Which statement is correct?
- A. The value of the network mask does not have to match.
- B. The area ID does not have to match.
- C. The area ID, the E bit value, the Hello interval and network mask must all match.
- D. The value of the Hello interval does not have to match.
- E. The value of the E bit in the options field does not have to match.
Answer: C
NEW QUESTION 160
A network technician needs to set up a local mirror to replicate traffic for examination with a protocol analyzer. The analyzer is on port 1/1/4 of his service router.
Which of the following configuration steps is required?
- A. None of the above.
- B. Verification that his IP/MPLS infrastructure is in place
- C. A mirror source listing port 1/1/4.
- D. A mirror destination listing port 1/1/4.
- E. A remote source command indicating the IP address of the service router he is configuring a local mirror on.
Answer: D
NEW QUESTION 161
Click on the exhibit.
Given the contents of the Router LSA, which of the following best describes the local topology of the router?
- A. The router has a system interface, one point-to-point interface and one virtual link.
- B. The router has a system interface, one passive interface, one point-to-point interface and one virtual link.
- C. The router has a system interface, one passive interface, one point-to-point interface and one broadcast interface.
- D. The router has a system interface, one point-to-point interface and one broadcast interface.
Answer: D
NEW QUESTION 162
The SAP 1/1/1:2.3 receives an untagged Ethernet frame.
Which of the following is TRUE?
- A. VLAN tags 2 and 3 are added to the frame.
- B. Only inner VLAN tag 3 is added.
- C. The frame is dropped.
- D. Only outer VLAN tag 2 is added.
Answer: C
NEW QUESTION 163
Click on the exhibit button below.
Assume the following:
- Each router's OSPF interfaces are in the areas shown.
- Bidirectional LDP-over-RSVP tunnels extend from routers R1 to R3 and back over the path R1-R4-R5-R3.
- You enable fast reroute facility bypass on the R5-R3 RSVP LSP.
- Router R5 acts as a PLR, protecting the R5-R3 link by building a bypass tunnel through router R2.
You build a layer 2 VPN on routers R1 and R3, using the LDP-over-RSVP tunnels.
What MPLS configuration step must you complete on router R2 for it to protect the end-to-end service?
- A. Configure T-LDP sessions between routers R2 and R5 and R3.
- B. Enable LDP on the R2-R5 interface.
- C. Enable MPLS and RSVP on the router R2 network interfaces.
- D. Configure LDP-over-RSVP support on router R2.
- E. Enable LDP on the R2-R5 and R2-R3 interfaces.
Answer: C
NEW QUESTION 164
Click on the exhibit.
This policy is applied as an LDP export policy.
In addition to the FECs learned from its neighbors, which FECs now appear in the router's LIB?
- A. Only the system IP FEC appears in the LIB.
- B. Local FECs in the 192.168.1.0/24 address space.
- C. Any local FECs, except those with a 24-bit mask.
- D. Local FECs not included in the 192.168.1.0/24 address space and the system IP FEC.
Answer: D
NEW QUESTION 165
A Cpipe supports both structured and unstructured frames.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 166
Which of the following is optional when configuring IS-IS on the Alcatel-Lucent 7750 SR?
- A. Configuring level capabilities
- B. Specifying an area address
- C. Enabling IS-IS
- D. Configuring IS-IS interfaces
Answer: A
NEW QUESTION 167
Which of the following statements regarding IS-IS DIS is false?
- A. L1 and L2 routers elect separate DIS's.
- B. In broadcast multi-access networks, such as Ethernet, a single router is elected as the DIS. There is no backup DIS
- C. DIS uses multicast address 0180x200:0015 to communicate with other routers on the broadcast network.
- D. If a new router starts up in a LAN and has a higher interface priority, the new router preempts the original DIS and becomes the DIS.
Answer: C
NEW QUESTION 168
Which of the following encapsulation types on an Ethernet port support the provisioning of multiple SAPs? (Choose 2)
- A. NULL
- B. Nil
- C. ATM
- D. Q-in-Q
- E. Dot1Q
Answer: D,E
NEW QUESTION 169
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