[Nov-2021] The Best Nokia SRC Certification 4A0-C01 Professional Exam Questions
Try 100% Updated 4A0-C01 Exam Questions [2021]
Nokia 4A0-C01 Exam Syllabus Topics:
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NEW QUESTION 43
Which protocol is used to signal the inner label for a L2-VPN service?
- A. Either RSVP or LDP
- B. TLDP
- C. M-BGP
- D. PPP
- E. RSVP
- F. IPCP
Answer: B
NEW QUESTION 44
Which of the following is FALSE about the databases used by a link-state routing protocol in a single area routing domain?
- A. The forwarding database contains the next hop for all known prefixes.
- B. The adjacency database contains all the links between all the routers.
- C. The link-state database has local topology information from all the routers.
- D. The link-state database is the same for all routers.
Answer: B
NEW QUESTION 45
Which component of the Alcatel-Lucent 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?
- A. Switch Fabric
- B. MDA
- C. IOM
- D. CPM
Answer: C
NEW QUESTION 46
When a router receives an IP packet, but does not find a match in the routing table for the destination IP address, what actions are performed by the router?
- A. The packet is flooded out all router interfaces.
- B. The packet is silently discarded.
- C. The packet is dropped and an ICMP unreachable message is sent back to the source.
- D. The packet is flooded out all interfaces and an ICMP unreachable message is sent.
Answer: C
NEW QUESTION 47
What is the default preference value for a static route in the Alcatel-Lucent 7750 SR router?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 48
In IS-IS, which of the following statements regarding an L1/L2 router is false?
- A. An L1/L2 router advertises its L2 routes to its L1 neighbors.
- B. An L1/L2 router sets the ATT bit in L1 LSPs to identify itself as an L1 router.
- C. An L1/L2 router calculates separate SPF trees for the Level 1 and Level 2 topology.
- D. An L1/L2 router can have neighbors in different areas.
Answer: B
NEW QUESTION 49
Which of the following are characteristics of ECMP LSPs in LDP? Choose three answers
- A. Hashing used to select the egress label.
- B. ECMP enabled in the config>router context.
- C. Export policy applied to advertise multiple labels for a given FEC.
- D. Liberal label retention mode
- E. T-LDP enabled with peers to which load balancing is desired.
Answer: B,C,D
NEW QUESTION 50
A SAP configured in the form of 1/1/1:0/32 would be used for which type of VPWS?
- A. E-pipe
- B. A-pipe
- C. C-pipe
- D. F-pipe
Answer: B
NEW QUESTION 51
On an Alcatel-Lucent 7750 SR, which vc-type will strip service delimiting tags at the ingress PE?
- A. vc-type dotlq
- B. vc-type ether
- C. vc-type vlan
- D. vc-type null
Answer: B
NEW QUESTION 52
Fill in the blanks: The device at the beginning of an LSP is referred to as the_________, and the device at the end of an LSP is referred to as the ___________.
- A. P, PE
- B. iLER, eLER
- C. LSR, LER
- D. PE, P
- E. eLER, iLER
- F. LER, LSR
Answer: B
NEW QUESTION 53
Click on the exhibit.
A service provider is deploying a 6 over 4 tunnel to connect a customer's corporate IPv6 network to all devices at the branch office as shown in the exhibit.
Which command is used to create the route to the branch office network on PE1?
- A. Configure router static-route 2001:DB8:1:200:756 indirect 2001:DB8:1:200::2
- B. Configure router static-route 2001:DB8:1:201:764 indirect 2001:DB8:1:200::2
- C. Configure router static-route 2001:DB8:1:201::/64 indirect 10.10.10.4
- D. Configure router static-route 2001:DB8:1:200::/56 indirect 10.10.10.4
Answer: D
NEW QUESTION 54
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: C
NEW QUESTION 55
Click on the exhibit.
Which of the following about the bypass tunnel is FALSE?
- A. The bypass-node tunnel is used to avoid the next-hop downstream router 10.10.10.3.
- B. The router 10.10.10.1 is a PLR providing node protection for the router 10.10.10.3.
- C. The bypass-link tunnel is used to avoid the link with the egress interface address 10.3.4.4.
- D. One-to-one fast reroute protection is requested by an LSP.
Answer: D
NEW QUESTION 56
Why must the MTU be changed when configuring an IES spoke termination to a VPLS?
- A. During VC label signaling, the VC MTU is verified and must match.
- B. All of the above.
- C. The default IP MTU of an IES is set based on the network port MTU.
- D. The default service MTU on a VPLS service is 1514 bytes.
Answer: B
NEW QUESTION 57
Click on the exhibit.
The operator of an IS-IS network wishes to have link metrics dynamically calculated in the same manner as OSPF.
The router with system address 10.10.10.1 is one hop away on a 1Gbps link Which of the following is correct?
- A. Neither a reference-bandwidth nor wide-metrics is configured on the router.
- B. Wide-metrics is configured on the router but a reference-bandwidth is not.
- C. The router is correctly configured.
- D. A reference-bandwidth is configured on the router but wide-metrics is not.
Answer: D
NEW QUESTION 58
Click the exhibit.
Which tool produced this output?
- A. ping
- B. Isp-trace
- C. traceroute
- D. Isp-ping
Answer: D
NEW QUESTION 59
Which of the following about the Alcatel-Lucent 7750 SR svc-ping, when used in-band, is FALSE?
- A. It will test the round-trip connectivity of the service.
- B. It will show the hops taken between service endpoints.
- C. It will test the delay across the service.
- D. It will test the SDPs of a service in both directions.
Answer: B
NEW QUESTION 60
An SDP using GRE encapsulation is configured for an E-pipe service. The network port used by the SDP has an MTU 0.
What value does the SDP path MTU have by default on an Alcatel-Lucent 7750 SR?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 61
Graceful Restart is supported by what IGPs?
- A. OSPF
- B. RIPv1 and RIPv2
- C. IS-IS
- D. BGP
Answer: A,C
NEW QUESTION 62
Which of the following about IS-IS is FALSE?
- A. An IS-IS router belongs to one or more areas.
- B. IS-IS uses the concept of Level 1 and Level 2 routers to implement hierarchy.
- C. All Level 2 routers belong to the same area.
- D. A Level 1 router forwards traffic to other areas through the nearest Level 1/2 router.
Answer: C
NEW QUESTION 63
An Alcatel-Lucent 7750 SR has its TE update threshold enabled with the up threshold set to 40%. The maximum reservable bandwidth on the link is 200M and 30M have already been reserved.
When will a TE update be sent on this link?
- A. When the reserved bandwidth goes above 40M.
- B. When an additional 80M bandwidth is reserved.
- C. When an additional 40M bandwidth is reserved.
- D. When the reserved bandwidth goes above 80M.
Answer: D
NEW QUESTION 64
What is a key benefit of a VPLS service?
- A. The customer maintains complete control over routing.
- B. All of the above.
- C. The adding of new sites is simplified; no re-configuration is required at existing sites.
- D. The clear demarcation of functionality between service provider and customer makes troubleshooting easier.
Answer: B
NEW QUESTION 65
What must be configured before a SAP can be created on an E-pipe?
- A. The Ethernet port must be set to network mode.
- B. The Ethernet port must be set to network mode, and the service must have a spoke SDP.
- C. The Ethernet port must be set to access mode.
- D. The Ethernet port must be set to access mode, and the service must have a spoke SDP.
Answer: C
NEW QUESTION 66
On an Alcatel-Lucent 7750 SR, which of the following statements about the default advertisement of VRF routes is true?
- A. All routes in the VRF are advertised to the CEs, but not to the PEs.
- B. No routes in the VRF are advertised to the PEs or to the CEs.
- C. All routes in the VRF are advertised to the PEs and CEs.
- D. All routes in the VRF are advertised to the PEs, but not to the CEs.
Answer: D
NEW QUESTION 67
Which of the following about Type 10 opaque LSAs is TRUE?
- A. Type 10 opaque LSAs are supported by IS-IS.
- B. Type 10 opaque LSAs are flooded to all areas of the routing domain.
- C. Type 10 opaque LSAs are stored in an LSDB.
- D. Type 10 opaque LSAs are used for traffic engineering support.
Answer: D
NEW QUESTION 68
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