Latest [Dec 02, 2021] 4A0-C02 Exam with Accurate Nokia SRA Composite Exam PDF Questions [Q202-Q222]

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Latest [Dec 02, 2021] 4A0-C02 Exam with Accurate Nokia SRA Composite Exam PDF Questions

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Nokia 4A0-C02 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Understand the operation of Inter-AS VPRN model A, model B and model C
  • Describe the effect of using advertise-external feature on BGP route propagation
Topic 2
  • Describe the basic Internet Architecture and related elements
  • Scale iBGP by deploying confederations or route reflections
Topic 3
  • Describe the operation of providing Internet access using various techniques
  • Demonstrate a sound understanding of BGP mechanics and the role of BGP attributes
Topic 4
  • Describe the operation of advanced VPRN topologies and services
  • Verify and troubleshoot the results of the policies configurations
Topic 5
  • Successfully configure, monitor and troubleshoot a network of multiple BGP peers
  • Implement BGP policies in an Nokia environment
Topic 6
  • Define management VPLS (M-VPLS) and how it can be used with STP to provide redundancy and load balancing
  • Explain BGP add-paths feature
Topic 7
  • Understand full, hub and spoke, and extranet VPRN topologies
  • Plan and implement a basic BGP network using Nokia SR OS
Topic 8
  • Configure and verify BGP advertise-external, add-paths, and FRR on Nokia SR
  • Describe the operation of BGP fast reroute
Topic 9
  • Explain the concept of a hierarchical VPLS and its benefits for large VPLS networks
  • Describe the advantages of a VPLS and configure a VPLS service
Topic 10
  • Describe the operation of the basic VPRN architecture
  • Explain the interaction between BGP and interior gatewayprotocol (IGP)
Topic 11
  • Implement loop control mechanisms such as rapid spanning tree in a VPLS environment
  • Describe the role of BGP in service provider networks
Topic 12
  • Implement loop prevention in VPRN using multiple techniques
  • Describe the use of active and standby pseudowires to achieve redundancy instead of STP
Topic 13
  • Explain the key scalability concerns in large VPLS deployments
  • Manage a VPLS infrastructure, and troubleshoot and repair a misconfigured VPLS

 

NEW QUESTION 202
Which of the following describes how a route is handled when is received at the PE from the local CE?

  • A. It will be placed into the customer VRF and require an export policy to be propagated to the BGP table
  • B. It will be placed into the customer VRF and then be propagated to the BGP table only if BGP is used as the PE-CE protocol
  • C. It will be placed into the customer VRF and automatically propagated into the BGP table
  • D. It will be placed into the customer VRF and require an export policy to be propagated to the BGP table if RIP is used as the PE-CE protocol
  • E. It will be placed into the customer VRF and require an export policy to be placed into the BGP table if a protocol other than BGP is used as the PE-CE protocol

Answer: C

 

NEW QUESTION 203
In a VPRN, how does the service provider ensure that customer addresses are unique when multiple customers use the same address space?

  • A. The Route Target ensures that addresses are unique between customers
  • B. The Route Distinguisher ensures that addresses are unique between customers.
  • C. The provider will advise the customers to change their addresses
  • D. It is the customer responsibility to ensure their address space is unique
  • E. The provider will use NAT to ensure that addresses are unique between customers

Answer: B

 

NEW QUESTION 204
Which of the following about the control plane in Carrier Supporting Carrier (CSC) VPRN is FALSE?

  • A. The customer carrier does not learn any network provider internal routes.
  • B. End-customer routes are populated in the network provider CSC VRF.
  • C. Routes exchanged between the customer carrier and the network provider are labeled.
  • D. The network provider learns customer carrier PE system addresses.

Answer: B

 

NEW QUESTION 205
Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Prefixes advertised by router R5 have a local preference of 200. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6.
Assuming that none of the routers in AS 65540 is configured with "advertise-external", what is the expected output of "show router bgp routes" on router R2?

  • A. Option C
  • B. Option A
  • C. Option B
  • D. Option D

Answer: B

 

NEW QUESTION 206
When deploying Active/Standby pseudowires, the CE does not require any special configuration

  • A. TRUE
  • B. FALSE

Answer: B

 

NEW QUESTION 207
Which of the following is TRUE?

  • A. Community is a well-known discretionary attribute.
  • B. Community is an optional non-transitive attribute.
  • C. Community is an optional transitive attribute.
  • D. There can only be one community associated with a route.

Answer: C

 

NEW QUESTION 208
Which of the following statements BEST describes the IntServ model?

  • A. Has the ability to distinguish traffic in 32 different ways.
  • B. Has the ability to manually configure foiwarding classes through a network.
  • C. Uses the RSVP protocol to create macroflows through a network.
  • D. Uses the RSVP protocol to create microflows through a network.

Answer: D

 

NEW QUESTION 209
The operation of a VPLS can be best described by which of the following statements?

  • A. A frame should be sent to the PE that connects to the target site whenever possible.
  • B. Only (a) and (b) are true.
  • C. A frame should be flooded as little as possible.
  • D. Customer frames should be switched based on the destination MAC address.
  • E. All of the above.

Answer: E

 

NEW QUESTION 210
The following VPLS services have been configured. Which of the following statements is TRUE?

  • A. A frame with an outer VLAN tag of 100 will be forwarded to VPLS 2.
  • B. All frames with more than one VLAN tag will be dropped.
  • C. All untagged frames will be dropped.
  • D. A frame with an outer VLAN tag of 200 and inner VLAN tag of 300 will be forwarded to VPLS 3.
  • E. A frame with a single VLAN tag of 500 will be forwarded to VPLS 1.

Answer: A

 

NEW QUESTION 211
A physical port has three associated buffer pools. Which of the following buffer pool combinations is associated to a physical port?

  • A. Port ingress, port egress, network egress
  • B. Access ingress, access egress, network egress
  • C. Access ingress, network ingress, network egress
  • D. Port ingress, network ingress, network egress
  • E. Port ingress, port egress, shared bi-directional

Answer: B

 

NEW QUESTION 212
Router R4 is an Alcatel-Lucent 7750 SR configured for the extranet VPRN network. Which CLI command is executed on router R4 to produce the displayed output?

  • A. "show router 10 route-table"
  • B. "show router route-table"
  • C. There is no CLI command that can produce this output on router R4
  • D. "show router 20 route-table"

Answer: B

 

NEW QUESTION 213
Click the exhibit button below. Given the scheduler-policy (below), how much bandwidth can the best-effort traffic receive (PIR and CIR) when the ingress rate of each queue is 10Mbps?

  • A. PIR = 5Mbps, CIR = 1.25Mbps
  • B. PIR = 4Mbps. CIR = 1Mbps
  • C. PIR = 1Mbps, CIR = 1 Mbps
  • D. PIR = 1.25Mbps, CIR = 1.25Mbps
  • E. PIR = 10Mbps, CIR = 1Mbps

Answer: C

 

NEW QUESTION 214
Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers, what is the most likely relationship between ISP 1 and the other ISPs?

  • A. ISP 1 has a peering relationship with ISP 2 and ISP 3.
  • B. ISP 1 has a transit relationship with ISP 2 and a peering relationship with ISP 3.
  • C. ISP 1 has a transit relationship with ISP 2 and ISP 4.
  • D. ISP 1 has a peering relationship with ISP 2 and a transit relationship with ISP 3.
  • E. ISP 1 has a peering relationship with ISP 2 and ISP 4.

Answer: D

 

NEW QUESTION 215
What are the advantages of running a physical ring topology with a mesh of mesh-SDPs? (Choose 2)

  • A. STP is not required to break the loop because of split-horizon rules.
  • B. If the traffic is primarily multicast, a full mesh of SDPs is a simple and efficient design.
  • C. If the traffic is primarily Unicast, a full mesh of SDPs is a simple and efficient design.
  • D. STP can be used to break the loop.

Answer: A,C

 

NEW QUESTION 216
Click the exhibit.

For the PE hub and spoke VPRN, on which PE(s) should the VPRN service command target export target: 65100:1 import target: 65100: 2 " be configured?

  • A. PE2, PE3 and PE4
  • B. This command is not required for the configuration of this PE hub and spoke VPRN.
  • C. PE1
  • D. PE1, PE2, PE3 and PE4

Answer: C

 

NEW QUESTION 217
Assuming that none of the routers within AS 65200 is configured with next-hop-self", what will the BGP update for the 192.168.0.1/27 prefix contain when it arrives at router B?

  • A. AS Path of 65100, Next Hop of router E
  • B. AS Path of 65200 65100, Next Hop of router A
  • C. AS Path of 65100, Next Hop of router A
  • D. AS Path of 65200 65100, Next Hop of router E

Answer: A

 

NEW QUESTION 218
Which of the following about eiBGP Load Balancing is FALSE?

  • A. Allows a PE router to load share traffic across routes learned from both direct CE-PE peerings and MP-BGP peerings.
  • B. The RD of the VPRN on the local PE must be different from the RD of the remote PEs.
  • C. ecmp and multipath must be configured within the VPRN instance.
  • D. Is enabled in the config>router>bgp context

Answer: D

 

NEW QUESTION 219
Which SDP on R3 will MAC addresses be associated with for devices behind R2?

  • A. Devices behind R2 will be associated with the sdp between R3 and R4.
  • B. It depends if traffic is received via R4 or R1 from devices behind R2.
  • C. The devices cannot communicate based on the configuration in the diagram so there will be no mac address association.
  • D. Devices behind R2 will be associated with the sdp between R3 and R1.

Answer: D

 

NEW QUESTION 220
Router R3 is configured with an import policy to reject updates with an AS Path matching the regular expression ".+ 65540". Which of the following regarding updates originating in AS 65540 is TRUE?

  • A. Router R3 accepts updates transited through router R2 and rejects updates received from router R1.
  • B. Router R3 accepts updates from both routers R1 and R2.
  • C. Router R3 rejects all updates originating in AS 65540.
  • D. Router R3 accepts updates received from router R1 and rejects updates transited through router R2.

Answer: D

 

NEW QUESTION 221
Click on the exhibit below.

If the device connected to PE-A in Metro A sends a frame to PE-A that requires replication within the VPLS which devices is PE-A responsible for replicating the frame to?

  • A. All of the above
  • B. PE-A must replicate the frame to all devices participating in the VPLS
  • C. PE-A must replicate the frame to all PEs within Metro A
  • D. PE-A must replicate the frame to all devices in the Metro A

Answer: C

 

NEW QUESTION 222
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