4A0-100 Certification - The Ultimate Guide [Updated 2026]

4A0-100 Practice Exam and Study Guides - Verified By VCE4Dumps

By passing the Alcatel-Lucent 4A0-100 Exam, candidates can demonstrate their expertise in IP networking and gain recognition as a certified Alcatel-Lucent IP network professional. Nokia IP Networksand Services Fundamentals certification can help candidates advance their careers in network engineering or management and open up new job opportunities in the field.

 

NEW QUESTION # 109
Which of the following statements about SDPs is FALSE?

• A. SDPs are not configured on CE devices.
• B. The same SDP ID can be used on multiple routers.
• C. Each service requires a unique SDP.
• D. SDPs are not configured on P routers.

Answer: A

Explanation:
Section: Volume B

NEW QUESTION # 110
Which statement best describes a VPRN service?

• A. From the customers perspective it looks as if all sites have public internet access administered by the service provider.
• B. From the customers perspective it looks as if all sites are connected by the same set of dark fibers.
• C. From the customers perspective it looks as if all sites are connected to a private routed network administered by the service provider.
• D. From the customers perspective it looks as if all sites are connected to a private switched network administered by the service provider.

Answer: C

NEW QUESTION # 111
An Ethernet Local Area Network (LAN) consists of the components shown in the diagram. How many collision domains are on this LAN?

• A. 0
• B. 1
• C. 2
• D. 3

Answer: B

Explanation:
Section: Volume B

NEW QUESTION # 112
Which of the following are correct statements about MPLS labels? (Choose 3)

• A. MPLS labels must be dynamically signaled.
• B. MPLS labels may be dynamically signaled or statically assigned by the service provider.
• C. A sequence of label actions from one LER to another LER represents a logical tunnel known as an LSP.
• D. Labels are globally significant to the MPLS network.
• E. Labels are locally significant to the MPLS router.

Answer: B,C,E

Explanation:
Section: Volume B

NEW QUESTION # 113
Host A is transmitting data to host B on a TCP connection. What is the purpose of the ACK sent by host B?

• A. The ACK tells host A the sequence number of the segment that was just received by host
• B. The ACK tells the host A that host B wishes to establish a session.
• C. The ACK is flow control from host B and tells host A to reduce its transmission rate.
• D. The ACK tells host A the sequence number of the next segment that host B expects to see.

Answer: D

NEW QUESTION # 114
What happens next after an incoming packet is de-encapsulated from the Layer 2 frame in an Alcatel- Lucent 7750 router?

• A. A lookup is performed in the FIB to determine the egress interface.
• B. The IP datagram is encapsulated in the appropriate Layer 2 frame by the MDA.
• C. The IP datagram passes through the switch fabric to reach the egress IOM.
• D. The IP datagram is passed to the IOM.

Answer: D

NEW QUESTION # 115
Which of the following are functions of VLANs? (Choose 2)

• A. VLANs allow multiple Ethernet switches to be connected in a single collision domain
• B. VLANs can separate ports on the same switch into different broadcast domains
• C. VLANs can group ports on the same switch into different collisiondomains
• D. VLANs can group ports on multiple switches into unifiedbroadcast domains

Answer: B,D

NEW QUESTION # 116
Which is the public AS in the diagram?

• A. 0
• B. 1
• C. All of the above.
• D. None of the above.
• E. 2

Answer: A

NEW QUESTION # 117
What is the basic unit of framing in SONET and the bit rate for its transmission?

• A. STS-1 with a bit rate of 51.84 Mbit/s
• B. STS-1 with a bit rate of 155.52 Mbit/s
• C. STS-1 with a bit rate of 1.544 Mbit/s
• D. STS-1 with a bit rate of 2.048 Mbit/s

Answer: A

Explanation:
Section: Volume A

NEW QUESTION # 118
Which of the following is a function of the Link layer?

• A. It is responsible for encapsulating packets into IP datagrams and routing them
• B. It is responsible for the timing of the signals on physical media.
• C. It is responsible for encapsulating application data into TCP/UDP messages
• D. It is responsible for encapsulating packets into frames for transmission on physical media

Answer: D

Explanation:
Section: Volume B

NEW QUESTION # 119
Which of the following is a characteristic of Distance Vector protocols?

• A. Routers send triggered updates to the entire network.
• B. Routers know the entire network topology.
• C. Routers use Shortest Path First algorithm to calculate the optimum paths.
• D. Routers periodically send a copy of their table to their neighbors.

Answer: D

NEW QUESTION # 120
How many DS-3 frames can be transported in an OC-3 frame?

• A. 0
• B. 1
• C. 2
• D. 3

Answer: D

NEW QUESTION # 121
Which of the following IP header fields contains information that indicates whether routers are allowed to fragment a packet?

• A. Header checksum.
• B. Fragmentation offset.
• C. Identification.
• D. Flags.

Answer: D

NEW QUESTION # 122
Which of the following is IANA responsible for?

• A. The allocation of global IP address space
• B. The allocation of residential IP address space
• C. The allocation of enterprise IP address space
• D. The allocation of North American IP address space

Answer: D

NEW QUESTION # 123
Which of the following are considered Virtual Private Network (VPN) technologies? (Choose 3)

• A. BGP
• B. VPLS
• C. ISP
• D. VPWS
• E. VPRN

Answer: B,D,E

NEW QUESTION # 124
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