Alcatel-lucent Scalable IP Networks Mpls
(327).webp "Alcatel-lucent Scalable IP Networks Mpls - Quiz")
Preparing for the Network Routing Specialist I (NRS I) Certification Exam (4A0-100)
- 1.
Which of the following is false regarding an SDP?
- A.
It provides transport tunnel encapsulation.
- B.
It is specific to a single service.
- C.
The SDP ID is locally unique.
- D.
LDP can be used as the signaling protocol.
Correct Answer
B. It is specific to a single service.Explanation
SDPs are not specific to a single service and can support multiple services.Rate this question:
-
- 2.
Which of the following accurately describes a P device?
- A.
It is used exclusively by the customer.
- B.
It is responsible for adding and removing labels.
- C.
It swaps label information and forwards packets.
- D.
It creates an LSP in the provider network.
Correct Answer
B. It is responsible for adding and removing labels.Explanation
Answer A is a CE, and answer C is a P. D is partially correct, but B is the more accurate answer.Rate this question:
-
- 3.
Which of the following is not an accurate description of a VPN?
- A.
A series of point-to-point tunnels configured on client equipment
- B.
A tunnel technology created in a provider network
- C.
A function of MPLS networks to create private communities of users
- D.
Any network that includes encryption
Correct Answer
D. Any network that includes encryptionExplanation
Encryption can be a part of a VPN, but the correct description of a VPN should include a way to privatize communications between user communities. The other answers speak to this, but answer D does not.Rate this question:
-
- 4.
Which of the following is false regarding LDP?
- A.
It is used to define unidirectional paths through the network.
- B.
It is a protocol specifically intended for label distribution.
- C.
It is the only method for distributing labels in an MPLS network.
- D.
It describes a path through the MPLS network based on the IGP path.
Correct Answer
C. It is the only method for distributing labels in an MPLS network.Explanation
LDP is only one method of distributing labels; RSVP can be used as well as other protocols.Rate this question:
-
- 5.
Which of the following term-definition pairs is incorrect?
- A.
Push-Add a label
- B.
Swap-Replace a label
- C.
Label distribution protocol-Series of labels and next-hop interfaces
- D.
Pop-Remove a label
Correct Answer
C. Label distribution protocol-Series of labels and next-hop interfacesExplanation
This description is the Label Switched Path.Rate this question:
-
- 6.
The most commonly used label distribution protocol is _____.
- A.
OSPF
- B.
BGP
- C.
LDP
- D.
Option 4
Correct Answer
C. LDPExplanation
LDP is the most common label distribution protocol.Rate this question:
-
- 7.
Which of the following is not a type of VPN?
- A.
VPWS
- B.
VPNM
- C.
VPLS
- D.
VPRN
Correct Answer
B. VPNMExplanation
VPNM is not a type of VPN.Rate this question:
-
- 8.
A VPN that provides a simple point-to-point service between two destinations is a _____.
- A.
VPNM
- B.
VPLS
- C.
VPWS
- D.
None of the above
Correct Answer
C. VPWSExplanation
VPWS is a VPN that emulates a point-to-point service between two destinations.Rate this question:
-
- 9.
The VPN service that must maintain a table of MAC addresses is _____.
- A.
VPWS
- B.
VPLS
- C.
VPRN
- D.
Both A and B
Correct Answer
B. VPLSExplanation
VPLS is a VPN that must maintain a table of MAC addresses.Rate this question:
-
- 10.
The VPN service that requires encryption is _____.
- A.
VPRN
- B.
VPNM
- C.
VPLS
- D.
None of the above
Correct Answer
D. None of the aboveExplanation
None of the VPN services provided by an MPLS network require encryption.Rate this question:
-
- 11.
The VPN service that appears to the customer as a private routed network is _____.
- A.
VPNM
- B.
VPRN
- C.
VPLS
- D.
VPWS
Correct Answer
B. VPRNExplanation
VPRN is a VPN that appears to a customer as a private routed network.Rate this question:
-
- 12.
As a packet traverses an MPLS network, it passes through a router that removes one label and replaces it with another. The router it passed through was a _____ router.
- A.
PE
- B.
CE
- C.
LER
- D.
P
Correct Answer
D. PExplanation
P routers swap labels and forward them to other P or PE routers.Rate this question:
-
- 13.
A packet arrives at a router with a label, and the router cannot perform any operations on it. The router is most likely a _____.
- A.
LSR
- B.
PE
- C.
LER
- D.
None of the above
Correct Answer
D. None of the aboveExplanation
PE, LSR, and LER routers can all understand labels. The router is most likely a CE router, which is not one of the choices.Rate this question:
-
- 14.
In an MPLS network, the customer routers have no knowledge of how the MPLS features are implemented. The benefits of this include _____.
- A.
Ease of CE configuration
- B.
It allows for very scalable VPN solutions.
- C.
It lowers CE management overhead.
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Transparency of the MPLS features to a CE device has all of the benefits listed.Rate this question:
-
- 15.
The relationship between LDP and an IGP is best described as _____.
- A.
LDP paths are preferred over IGP routes.
- B.
LDP uses IGP next-hop information.
- C.
LDP re-distributes labels into IGP.
- D.
IGP tags network destinations with LDP information.
Correct Answer
B. LDP uses IGP next-hop information.Explanation
LDP and IGPs do not re-distribute information directly or compete with each other for paths as they perform completely different functions, although LDP does use the information from IGP to populate the next-hop interfaces for labels.Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Aug 21, 2024Quiz Edited by
ProProfs Editorial Team -
Jul 19, 2017Quiz Created by
Teenoko
- Binary Code Quizzes
- Computer Concept Quizzes
- Computer Essential Quizzes
- Computer Forensics Quizzes
- Computer Hardware Quizzes
- Computer Networking Quizzes
- Computer Parts Quizzes
- Computer Programming Quizzes
- Computer Science Quizzes
- Computer Security Quizzes
- Computer Shortcut Key Quizzes
- Computer Skills Quizzes
- Computer Virus Quizzes
- Cyber Security Quizzes
- Data Quizzes
- Data Security Quizzes
- Hacking Quizzes
- HCI Quizzes
- IT SecurITy Quizzes
- Malware Quizzes
- Microprocessor Quizzes
- Operating System Quizzes
- Phishing Quizzes
- Programming Language Quizzes
- Software Quizzes
Back to top