Nokia SRC Certification 4A0-C01 Dumps | Updated Jan 26, 2022 - RealValidExam
Master 2022 Latest The Questions Nokia SRC Certification and Pass 4A0-C01 Real Exam!
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:
- Understand how to manage, monitor and perform basic troubleshooting of RSVP-TE-established LSPs on - the Nokia 7750 SR and Nokia 7450 ESS
- Configure 6PE on a network of 7750 SRs
- Demonstrate an understanding of route redistribution and route filter policies
- Describe the purpose and operation of a VPLS service
- Understand networking utilizing a combination of OSPF and IS-IS
- Differentiate between transport tunnels and service tunnels
- Explain the issues related to VPWS interworking
- Correctly analyze the implications of maximum transmission unit (MTU) size
- Describe the MPLS header structure and explain the label operations of pop, push and swap
- Configure an MPLS-based core network using LDP, RSVP-TE, and LDP over RSVP
- Understand static and default routes
- Understand single and multi area networks in OSPFv3
- Manage Epipe services given an existing infrastructure including modifying, deleting, disabling, - re-enabling, and creating these services
- Configure, verify, and troubleshoot an IPv4 and IPv6 VPRN service
- Define the differences between IS-IS and OSPF
- Demonstrate a basic overall understanding of link state protocols
- Describe traffic engineering and its advantage in an MPLS network.
- 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
- Identify the traffic engineering extensions made to the IGP routing protocols and understand how - they are used with CSPF to establish traffic engineered LSPs
- Configure and verify the operation of a remote mirror service
- Understand IPv6 basics and IPv6 addressing
- Correctly define the terms related to VPWS services such as Epipe, Apipe, Fpipe, and Ipipe
- Provide an explanation for a service delivery point (SDP) and differentiate between mesh and spoke - SDPs
- Explain the basic concepts of MPLS technology such as forwarding equivalence classes (FECs), labels and label stacks, label distribution, LSPs and MPLS packet forwarding
- Configure an IES spoke termination to a VPLS service
- List the various LSP protection mechanisms (Secondary/ Standby LSP, fast reroutes)
- Understand OSPF in basic and complex network topologies
- Define and configure an Internet enhanced service (IES)
- Understand OSPFv3
- 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)
- Correctly configure a VPLS service
- Explain how LDP works to distribute labels for FECs and establish LSPs
- Use the correct operations, administration and maintenance (OAM) tools to analyze a configured - system
- Correctly configure an Epipe service
- Describe the various routing protocol databases (routing, forwarding and link state)
- Explain the different types of SAP encapsulations and describe their behavior
- Differentiate between service access point (SAP) and network ports
- Understand IS-IS for IPv6
- List the characteristics of different label distribution protocols and compare them
- Understand OSPF operations and OSPF routing issues
- Describe the concept of a shared risk link group (SRLG) and its use in traffic engineering
- State the purpose of using LDP over RSVP tunnels to provide traffic engineering in a hierarchical network
- Express a basic overall understanding of IP routing design
- Explain the basic operations of OSPF and implementation and operability of OSPF in a network
- Identify the protocols and technologies required to implement VPRN service
- Configure RSVP-TE LSPs using each of the possible protection mechanisms
- 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
- Demonstrate a basic overall understanding of Nokia services
- Explain the basic operations of IS-IS, and implementation and operability of IS-IS in a network
- Describe MPLS for IP routing (MPLS shortcuts)
NEW QUESTION 212
What command could be used to verify proper configuration of a static route in an Alcatel-Lucent 7750 SR router?
- A. Show router route-table
- B. Show route-table
- C. Show router routing-table
- D. Show static
Answer: A
NEW QUESTION 213
Click on the exhibit.
Before the link failure, all routers have operational OSPF adjacencies between them and there is a BFD session between routers R1 and R3.
After the link failure, which of the following affects the IGP convergence time?
- A. The convergence time depends on the value of the OSPF hello timers and Dead interval on routers R1 and R3.
- B. The convergence time depends on the value of the OSPF hello timers on routers R1 andR3.
- C. The convergence time depends on the time taken by the switches to detect the link failure.
- D. The convergence time depends on the value of the BFD interval and multiplier settings on routers R1 andR3.
Answer: D
NEW QUESTION 214
On the Alcatel-Lucent 7750 SR, which one of the following steps is NOT required when enabling an MP-BGP session between PE routers in a VPRN?
- A. Configuring an autonomous system number in the global context.
- B. Configuring an export policy to advertise routes between PEs.
- C. Configuring a VPN-IPv4 address family.
- D. Configuring a BGP group and peer parameters.
Answer: B
NEW QUESTION 215
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 216
A customer requests that their Layer 2 Ethernet service be configured to forward frames up to 1500 bytes. The service provider is using MPLS encapsulation (without RSVP-TE fast-reroute) on their IP/MPLS network.
What is the minimum MTU setting for the network ports?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 217
Which VPWS service would be used to create a point-to-point Frame Relay service?
- A. Cpipe
- B. Fpipe
- C. Epipe
- D. Apipe
- E. Ipipe
Answer: B
NEW QUESTION 218
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. None
- D. 2
- E. 3
Answer: D
NEW QUESTION 219
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 220
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. The system interface is missing in one configuration so OSPF will not operate correctly.
- C. Metric values differ, but this does not prevent OSPF operation.
- D. Both routers will generate OSPF Hello packets.
Answer: A,B
NEW QUESTION 221
Which of the following best describes how a MAC FDB is populated in a VPLS service?
- A. The router is programmed with MAC addresses by the network administrator.
- B. A VPLS service does not use a MAC FDB.
- C. The router reads the source MAC address of frames passing through the service.
- D. The router reads the destination MAC address of frames passing through the service.
- E. The router uses reverse ARP (RARP) to resolve the MAC addresses for unknown destinations.
Answer: C
NEW QUESTION 222
Which of the following about ADSPEC is FALSE?
- A. ADSPEC sets an SDP's MTU to the smallest MTU value found along the LSP path.
- B. ADSPEC can automatically adjust the service MTU.
- C. RSVP must be enabled on all MPLS routers of a path to use ADSPEC.
- D. ADSPEC can be enabled on individual LSPs.
Answer: B
NEW QUESTION 223
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 224
Click on the exhibit.
192.168.3.1 is a loopback interface on router R2 and is distributed to OSPF area 0, but the ping fails from router R3.
Which of the following is a possible solution to the problem?
- A. Configure a default route on router R2.
- B. Add the "summaries" option to the NSSA area configuration on router R1.
- C. Add the "originate-default-route" option in the NSSA area configuration on router R3.
- D. Configure a static route on router R1 to 192.168.3.1.
Answer: B
NEW QUESTION 225
Which of the following configurations allow a router to periodically attempt to move LSP traffic to a better path, if the head end can find one?
- A. configure router mpls global-revertive 30
- B. configure router mpls retry-attempts 30
- C. configure router mpls retry-timer 30
- D. configure router mpls resignal-timer 30
Answer: D
NEW QUESTION 226
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 227
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 228
Click on the exhibit.
An LSP path is established on router R1 toward router R6. After router R4 detects that the link between routers R4 and
R6 goes down, which of the following will affect the failure propagation time?
- A. The time router R4 takes to detect RSVP Hello message timeout from router R6.
- B. The time router R4 takes to send a PATH Error message toward the head-end router.
- C. The time router R1 takes to signal an alternate path through router R3.
- D. The time router R4 takes to send a RESV Error message to the head-end router.
Answer: B
NEW QUESTION 229
Which of the following best describes constraint-based routing?
- A. A mechanism that allows RSVP or LDP signaling to use a route other than the IGP best route to establish a LSP.
- B. A mechanism that computes routes based on defined user requirements.
- C. A mechanism that allows the IGP shortest path to be used.
- D. A mechanism that implements opaque LSAs.
Answer: B
NEW QUESTION 230
Which OSPFv3 LSA type is similar in function to the OSPFv2 Type 3 LSA?
- A. Link
- B. Inter-Area Prefix
- C. Inter-Area Router
- D. Intra-Area Prefix
Answer: B
NEW QUESTION 231
Which of the following describes 6PE?
- A. P routers run IPv6 only. PE routers run IPv6 only and exchange IPv4 routes using MP-BGP.
- B. P routers run IPv4 only. PE routers run IPv4 only and exchange IPv6 routes using MP-BGP.
- C. P routers run IPv4 only. PE routers run both IPv4 and IPv6 and exchange IPv6 routes using MP-BGP.
- D. P routers run IPv6 only. PE routers run both IPv4 and IPv6 and exchange IPv4 routes using MP-BGP.
Answer: C
NEW QUESTION 232
Which of the following statements best defines an LSP?
- A. An LSP is a bidirectional path across the MPLS domain.
- B. An LSP is a bidirectional path between adjacent LSRs.
- C. An LSP is a bidirectional path for a particular FEC across the MPLS domain.
- D. An LSP is a unidirectional path across the MPLS domain.
- E. An LSP is a unidirectional path between adjacent LSRs.
Answer: D
NEW QUESTION 233
Which of the following about label modes on the Alcatel-Lucent 7750 SR is FALSE?
- A. LDP advertises label mappings to all peers for which it might be a next-hop for a given FEC.
- B. LDP uses conservative label retention mode.
- C. RSVP distributes a label mapping for a FEC when it has been requested to do so.
- D. RSVP uses downstream on demand label distribution mode.
Answer: B
NEW QUESTION 234
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