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NEW QUESTION 271
Which of the following steps is mandatory when enabling an MP-BGP session between PE routers in a VPRN?
- A. All of the above steps are mandatory.
- B. Configure a VPN-IPv4 address family.
- C. Configure an autonomous system number in the global context.
- D. Configure a BGP group and peer parameters.
- E. None of the above steps are mandatory.
Answer: A
NEW QUESTION 272
Which of the following about the Isp-ping command on the Alcatel-Lucent 7750 SR is FALSE?
- A. Echo reply packets may not take the same path as the LSP.
- B. An echo request is sent based on the LSP's label stack.
- C. The test fails if the LSP is not operationally up.
- D. The IP destination address is used to initiate echo requests,
Answer: D
NEW QUESTION 273
Which of the following best describes how IS-IS routers exchange updates on an Ethernet interface?
- A. IS-IS routers exchange updates using Ethernet multicast packets.
- B. IS-IS routers exchange updates by sending UDP packets to a multicast address.
- C. IS-IS routers exchange updates using IP multicast packets.
- D. IS-IS routers exchange updates by sending packets to the subnet broadcast address.
Answer: A
NEW QUESTION 274
Which of the following messages is NOT used in T-LDP operation?
- A. Keepalive message
- B. Hello message
- C. ACK message
- D. Label Mapping message
- E. Init message
Answer: C
NEW QUESTION 275
Click on the exhibit.
Given the output below, which of the following is FALSE?
- A. There are multiple LSPs to reach FEC 10.10.10.244/32.
- B. The router is an egress router for FEC 10.10.10.221/32.
- C. The router's system address is 10.10.10.242/32.
- D. A packet arriving with label 131066 will be forwarded out interface 1 /1 /4 with label 131070.
Answer: C
NEW QUESTION 276
VPWS allows carriers to offer services such as point-to-point frame-relay, ATM, and Ethernet on a single platform without the need for multiple overlay networks.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 277
On which object is ADSPEC enabled?
- A. SDP
- B. Network port
- C. Service
- D. LSP
- E. RSVP
Answer: D
NEW QUESTION 278
What causes an adjacency to change from down to two ways?
- A. When a link state update is received in response to a link state request.
- B. When a link state acknowledgement is received in response to a link state update.
- C. When a router receives a database description packet from a neighbor.
- D. When a router receives a Hello packet that contains its own router ID in the neighbor list from a neighbor.
Answer: D
NEW QUESTION 279
What labels are encapsulated in the tunnels used by a 6PE deployment?
- A. The inner label is an MPLS transport label. The outer label is the IPv4 Explicit Null.
- B. The inner label is the IPv4 Explicit Null. The outer label is the MPLS transport label,
- C. The inner label is the IPv6 Explicit Null. The outer label is an MPLS transport label.
- D. The inner label is an MPLS transport label. The outer label is the IPv6 Explicit Null.
Answer: C
NEW QUESTION 280
Click on the exhibit.
The route table on router R2 shows the system address of router R5 but it does not show any of the interfaces from the non-OSPF area.
What may be causing this?
- A. 'asbr' is missing from router R1's configuration.
- B. Router R1 needs to have an import policy added to it.
- C. Router R5 does not have an export policy for these prefixes.
- D. Router R1 needs to have an export policy added to it.
Answer: C
NEW QUESTION 281
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 T-LDP sessions to both ABR-1 and ABR-2.
- B. PE-1 requires fast reroute enabled on all RSVP-TE LSPs.
- C. ABR-1 requires T-LDP sessions to all ABRs in area 0.
- D. PE-1 requires a full mesh of RSVP-TE LSPs to all routers in area 1.
Answer: D
NEW QUESTION 282
Which of the following are similarities between OSPF and IS-IS? Choose two answers.
- A. Slow convergence after link failures.
- B. Support hierarchy through the use of areas.
- C. Support for CIDR.
- D. Metric is based on hop count.
- E. Link state updates sent using layer 3 multicast.
Answer: B,C
NEW QUESTION 283
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 284
What value should the AFI be set to for locally administered addressing?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: A
NEW QUESTION 285
Which of the following options are used to configure an MPLS signaling type to be used on an SDP? (Choose 2)
- A. configure service sdp sdp-id create
- B. Isp Isp-name
- C. configure service sdp sdp-id gre create
- D. Idp
Answer: B,D
NEW QUESTION 286
How many SAPs can be configured on a port configured with NULL encapsulation?
- A. None. This encapsulation is not supported.
- B. 0
- C. The number is limited only by the capacity of the router
- D. 1
Answer: D
NEW QUESTION 287
What is the term used for the updates sent by IS-IS?
- A. Link State PDUs
- B. Link State Updates
- C. Intermediate System Update Packets
- D. Link State Advertisements
Answer: A
NEW QUESTION 288
Which tree in the CLI would you need to be in to add a QoS policy to a SAP?
- A. config>service#
- B. config>qos#
- C. config>port#
- D. config>router#
Answer: A
NEW QUESTION 289
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topics of Nokia 4a0-c01 Exam
Candidates must know the topics before they start of preparation. Because it will really help them in hitting the core. Our Nokia 4a0-c01 Exam dumps will include the following topics:
- Identify the traffic engineering extensions made to the IGP routing protocols and understand how - they are used with CSPF to establish traffic engineered LSPs
- Explain the basic concepts of MPLS technology such as forwarding equivalence classes (FECs), labels and label stacks, label distribution, LSPs and MPLS packet forwarding
- List the various LSP protection mechanisms (Secondary/ Standby LSP, fast reroutes)
- Use the correct operations, administration and maintenance (OAM) tools to analyze a configured - system
- Describe traffic engineering and its advantage in an MPLS network.
- Define the differences between IS-IS and OSPF
- Demonstrate an understanding of route redistribution and route filter policies
- Correctly configure an Epipe service
- Configure and verify the operation of a remote mirror service
- Understand how to manage, monitor and perform basic troubleshooting of RSVP-TE-established LSPs on - the Nokia 7750 SR and Nokia 7450 ESS
- Correctly analyze the implications of maximum transmission unit (MTU) size
- Understand OSPF in basic and complex network topologies
- Understand networking utilizing a combination of OSPF and IS-IS
- Understand IS-IS for IPv6
- Describe the purpose and operation of a VPLS service
- Describe the MPLS header structure and explain the label operations of pop, push and swap
- Understand how to manage, monitor and perform basic troubleshooting of LDP-established LSPs on the - Nokia 7750 Service Router (SR) and Nokia 7450 Ethernet Service Switch (ESS)
- List the characteristics of different label distribution protocols and compare them
- Demonstrate a basic overall understanding of link state protocols
- Understand OSPF operations and OSPF routing issues
- Configure, verify, and troubleshoot an IPv4 and IPv6 VPRN service
- Configure 6PE on a network of 7750 SRs
- Demonstrate how RSVP-TE is used to establish traffic engineered LSPs using RSVP signaling messages to distribute labels, specify constraints for the LSP and request LSP protection mechanisms
- Explain the basic operations of OSPF and implementation and operability of OSPF in a network
- Differentiate between service access point (SAP) and network ports
- Demonstrate a basic overall understanding of Nokia services
- Explain the interaction between the control and data plane of a VPRN service
- Identify reasons to use mirror services and differentiate between local and distributed mirror - services
- State the purpose of using LDP over RSVP tunnels to provide traffic engineering in a hierarchical network
- Explain the issues related to VPWS interworking
- Describe the concept of a shared risk link group (SRLG) and its use in traffic engineering
- Configure RSVP-TE LSPs using each of the possible protection mechanisms
- Understand OSPFv3
- Define and configure an Internet enhanced service (IES)
- Identify the protocols and technologies required to implement VPRN service
- Understand IPv6 basics and IPv6 addressing
- Understand single and multi area networks in OSPFv3
- Explain the basic operations of IS-IS, and implementation and operability of IS-IS in a network
- Configure an MPLS-based core network using LDP, RSVP-TE, and LDP over RSVP
- Provide an explanation for a service delivery point (SDP) and differentiate between mesh and spoke - SDPs
- Describe the various routing protocol databases (routing, forwarding and link state)
- Express a basic overall understanding of IP routing design
- Correctly configure a VPLS service
- Explain the different types of SAP encapsulations and describe their behavior
- Explain how LDP works to distribute labels for FECs and establish LSPs
- Configure an IES spoke termination to a VPLS service
- Understand static and default routes
- Manage Epipe services given an existing infrastructure including modifying, deleting, disabling, - re-enabling, and creating these services
- Describe MPLS for IP routing (MPLS shortcuts)
- Differentiate between transport tunnels and service tunnels
- Correctly define the terms related to VPWS services such as Epipe, Apipe, Fpipe, and Ipipe
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