[Aug-2025] Exam 4A0-100: New Brain Dump Professional - PracticeDump
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Alcatel-Lucent Scalable IP Networks certification is highly respected in the industry and is recognized by many top employers. Nokia IP Networksand Services Fundamentals certification demonstrates to potential employers that the candidate has the skills and knowledge necessary to design and manage complex IP networks using Alcatel-Lucent technology. It is an excellent way for network professionals to enhance their career prospects and increase their earning potential.
NEW QUESTION # 106
Which of the following best describes the operation of the Media Dependent Adapter (MDA)?
- A. Excess data is discarded by the MDA and the remaining data forwarded for QoS processing.
- B. The MDA buffers data and applies Quality of Service (QoS) to classify and treat the data appropriately.
- C. The MDA converts data from its incoming physical format into an internal format and provides some minimal buffering.
- D. The MDA contains the flexible fast path complex used for forwarding data.
Answer: C
Explanation:
Section: Volume A
NEW QUESTION # 107
What is the effective maximum rate of data transmission on a 10 Mbps full-duplex Ethernet link?
- A. 15 Mbps.
- B. 5 Mbps.
- C. 10 Mbps.
- D. 20 Mbps.
Answer: D
NEW QUESTION # 108
How does LDP select the path used for an LSP?
- A. LDP must be configured hop-by-hop by the service provider.
- B. LDP follows the path chosen by the IGP.
- C. LDP uses the shortest hop-count between two endpoints for the LSP.
- D. LDP monitors the available bandwidth on all links and signals the LSP based on this
information.
Answer: B
NEW QUESTION # 109
How many of the front access card slots of the Alcatel-Lucent 7750 SR-12 router are dedicated for redundant common equipment?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 110
Multiple SAPs may be defined on the same physical port and may be used for different services.
- A. False
- B. True
Answer: B
NEW QUESTION # 111
Which of the following are correct statements about MPLS labels (Choose three)?
- A. Labels are locally significant to the MPLS router which means its possible for two routers on the LSP path to use the same label.
- B. Labels used for an LSP must be statically assigned by the service provider.
- C. A series of labels from one LER to another LER represent a logical tunnel known as an LSP.
- D. Labels used for a LSP may be static but are usually signaled dynamically with an MPLS label signaling protocol.
- E. Labels are globally significant to the MPLS network which means all labels on the LSP path must be unique.
Answer: A,C,D
NEW QUESTION # 112
A given network with address 200.12.30.0 and network mask 255.255.255.0 is divided into 16 equal-sized subnetworks. How many hosts does each subnetwork support?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
Section: Volume B
NEW QUESTION # 113
What does a VPLS solution look like from a customers perspective?
- A. To the customer, it appears as if all sites are directly connected by a single cable.
- B. To the customer, it appears as if all sites are connected through a series of private point-to-point connections.
- C. To the customer, it appears as if all sites are connected through a single router.
- D. To the customer, it appears as if all sites are connected through a single switched LAN.
Answer: D
NEW QUESTION # 114
Which tier of Internet service providers can reach any part of the Internet without having to purchase transit services from other Internet service providers?
- A. A Tier 1 ISP
- B. Tier 1 and Tier 2 ISPs
- C. A Tier 2 ISP
- D. A Tier 3 ISP
Answer: A
NEW QUESTION # 115
What is the next-hop for network 172.16.2.0/24 installed in router 1's routing table?
- A. 10.10.10.2
- B. 10.10.10.3
- C. 10.10.10.0
- D. 10.10.10.1
Answer: A
Explanation:
Section: Volume B
NEW QUESTION # 116
Why does UDP have less overhead than TCP?
- A. UDP overhead is the same as TCP because it uses the same fields in the header.
- B. UDP has less overhead because it is only used for transmission of small amounts of data.
- C. UDP has less overhead because there is no requirement for acknowledgment or retransmission.
- D. UDP has less overhead then TCP because there is no checksum field in UDP.
Answer: C
Explanation:
Section: Volume B
NEW QUESTION # 117
Which of the following is TRUE regarding Ethernet half-duplex transmission?
- A. Ethernet switches only support half-duplex transmission.
- B. Half-duplex transmission is less efficient because the frame MTU is smaller.
- C. All of the above.
- D. An end-station connected to a hub will always be half-duplex.
Answer: D
NEW QUESTION # 118
As described by the CSMA/CD algorithm, what is the first thing to happen when Host A and Host B begin transmitting data at the same time?
- A. A back-off timer is started by Host A or B.
- B. Listening hosts will request retransmission.
- C. Host A or B will retry the transmission.
- D. Host A and B will generate a jam signal.
Answer: D
Explanation:
Section: Volume A
NEW QUESTION # 119
SAPs may be a port, a port with a specific VLAN tag in the case of an Ethernet port, or a port with a specific Circuit ID in the case of ATM or Frame Relay.
- A. False
- B. True
Answer: B
NEW QUESTION # 120
Which of the following statements is FALSE when describing a Virtual Private LAN Service?
- A. MAC addresses are maintained in a MAC address forwarding database (FDB).
- B. A VPLS emulates a virtual switch or bridge.
- C. When a VPLS receives a frame with an unknown MAC destination, the frame will be dropped.
- D. The VPLS performs MAC learning on MAC addresses seen from SAPs and SDPs.
Answer: C
NEW QUESTION # 121
Which of the following statements about IP addressing is TRUE?
- A. IP addresses provide hierarchy based on the country code and regional identifier.
- B. Classless IP addresses provide hierarchy based on fixed subnet masks of /24, /16, and /8.
- C. IP addresses are assigned by IEEE to vendors.
- D. Classless IP addresses provide hierarchy based on a variable length subnet mask.
Answer: D
Explanation:
Section: Volume B
NEW QUESTION # 122
Why is the address field in a PPP header always set to "11111111"?
- A. PPP supports point-to-point networks only. The address field can change dynamically since every station is assigned a PPP address.
- B. PPP supports point-to-point networks only. The address field is fixed.
- C. PPP supports multipoint access networks with many stations. The all 1's acts as a broadcast.
- D. PPP supports multipoint access networks with many stations. The all 1's acts as a multicast.
Answer: B
NEW QUESTION # 123
What is the behavior of a typical Ethernet switch when it receives a frame with a uncast destination MAC address? (Choose two)
- A. The switch floods the frame out of all ports except the port on which it was received.
- B. The switch looks in its FDB. If the destination address is unknown it discards the frame.
- C. The switch looks in its FD If the source address is unknown it discards the frame.
- D. The switch looks in its FDB. If the destination address is known it forwards the frame out the appropriate interface.
- E. The switch looks in its FDB. If the destination address is unknown it floods the frame out all ports except the port on which it was received.
Answer: D,E
NEW QUESTION # 124
Which of the following statements best describe the purpose of UDP? (Choose two)
- A. Provides a reliable transmission service.
- B. Provides a connectionless delivery service.
- C. Provides an unreliable transmission service,
- D. Provides a connection oriented delivery service
Answer: B,C
Explanation:
Section: Volume B
Explanation/Reference:
NEW QUESTION # 125
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