Prepare With Top Rated High-quality 4A0-100 Dumps For Success in 4A0-100 Exam [Q47-Q67]

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Prepare With Top Rated High-quality 4A0-100 Dumps For Success in 4A0-100 Exam

4A0-100 Free Certification Exam Easy to Download PDF Format 2026

QUESTION 47
Network address: 200.12.30.0
Network mask: 255.255.255.0
Use the information above. You need to create 12 subnetworks supporting 10 host addresses each.
Which extended prefix will meet this requirement?

/12

/24

/26

/28

/30

QUESTION 48
Which organization first considered cross-platform networking support to be a necessity?

IBM.

US Military.

Alcatel-Lucent.

NASA.

Bell Labs

QUESTION 49
What is required if devices on different VLANs wish to communicate with each other?

Devices on different VLANs cannot communicate with each other.

Devices on different VLANs can communicate with each other as long as they are connected to the same switch.

Devices on different VLANs can communicate with each other as long as the switches they are attached to are connected to each other with an Ethernet connection.

Devices on different VLANs can communicate with each other if there is an IP router to connect the VLANs.

QUESTION 50
What is NOT a function of the IOM?

It forwards the data to the switch fabric.

It discards excess data packets.

It converts the incoming data to an internal format.

It performs Quality of Service operations and buffers incoming data.

QUESTION 51
Which of the following are TRUE statements about the router ID in OSPF? Choose two

A router ID is not required by OSPF.

The system address is used as the router ID if router-id is not set.

The router ID is used to uniquely identify every OSPF router.

On the Alcatel-Lucent 7750 SR, the router ID is set to the highest logical IP address if router-id is not explicitly set.

QUESTION 52
What happens next after an incoming packet is de-encapsulated from the Layer 2 frame in an Alcatel-Lucent 7750 router?

The IP datagram is encapsulated in the appropriate Layer 2 frame by the MD

The IP datagram passes through the switch fabric to reach the egress IOM.

The IP datagram is passed to the IOM.

A lookup is performed in the FIB to determine the egress interface.

QUESTION 53
How many subnets and host addresses are obtained by subnetting network 201.148.26.0/24 using a /26 subnet mask?

4 subnets, 64 hosts per subnet

8 subnets, 32 hosts per subnet

4 subnets, 62 hosts per subnet

8 subnets, 30 hosts per subnet

QUESTION 54
In the diagram, R3 receives an LSA with sequence number 112 from R7 and installs it in its link state database. 10 ms. Later it receives a copy of the same LSA with a sequence number of 111 from R1. What does R3 do with the LSA from R1?

R3 discards the LSA received from R1 and sends a copy of the LSA from its link state base to R1.

R3 installs the LSA received from R1 in its link state database and floods a copy to its neighbors.

R3 discards the LSA received from R1 and sends an ACK to R1.

R3 installs the LSA received from R1 in its link state database, sends an ACK to R1 and floods a copy to its neighbors.

QUESTION 55
What are some of the characteristics of BGP? Choose three

BGP is an exterior gateway protocol.

BGP routing is based on distance vector.

BGP sends periodic updates to its neighbors.

A router running BGP protocol needs an Autonomous system number

QUESTION 56
A VPWS service maintains a MAC Forwarding Database (FDB) for Ethernet SAPs.

True

False

QUESTION 57
Which of the following statements best characterize Distance Vector Routing? (Choose 2)

Routers periodically send a copy of their routing table to their neighbors.

Routers flood link information throughout the entire area.

Network converges quickly (within several seconds) after a topology change.

Routers do not have precise knowledge of the entire network topology.

QUESTION 58
A 24 port Ethernet switch is configured with VLAN 100 on ports 1 – 8, VLAN 200 on ports 9 – 16 and VLAN 300 on ports 17 – 24. Which of the following describes the behavior of the switch when a broadcast frame is received on port 1?

The switch will discard the broadcast frame because there is no specific destination address.

The switch will flood the broadcast frame on all ports on which the switch has seen frames from attached devices

The switch will flood the broadcast frame on ports 2 to 8.

The switch will flood the broadcast frame on all 24 ports.

QUESTION 59
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?

Host A and B will generate a jam signal.

Listening hosts will request retransmission.

Host A or B will retry the transmission.

A back-off timer is started by Host A or B.

QUESTION 60
Which Ethernet frame field allows the transmitter and receiver to synchronize communications?

Preamble

Start Frame Delimiter

Length/Type

Frame Check Sequence

QUESTION 61
Which of the following is a characteristic of Layer 2 framing?

Provides a universal addressing scheme to uniquely identify destinations in the network

Size of frame cannot exceed 1518 bytes.

Provides error checking of the frame contents on ingress.

All of the above.

QUESTION 62
Which of the following are functions of VLANs? (Choose 2)

VLANs can group ports on multiple switches into unified broadcast domains

VLANs allow multiple Ethernet switches to be connected in a single collision domain

VLANs can separate ports on the same switch into different broadcast domains

VLANs can group ports on the same switch into different collision domains

QUESTION 63
How many of the front access card slots of the Alcatel-Lucent 7750 SR-12 router are dedicated for redundant common equipment?

QUESTION 64
What bit pattern identifies the network address in the subnet mask?

A string of 1s

A string of 0s

A string of alternating 10s

There is no specific bit pattern to identify the network address.

QUESTION 65
Which of the following are examples of Time Division Multiplexing (Choose two)?

Ethernet.

Token-Ring.

SONET/SDH.

E1 carrier.

PPP

QUESTION 66
Which of the following is a private IP network address reserved by the IANA?

172.30.0.0/16

192.100.0.0/24

172.0.0.0/16

169.254.0.0/16

11.0.0.0/8

QUESTION 67
Which statement best describes an SDP?

Service Delivery Points are defined on the service provider network side and used to bind the service
to an MPLS transport tunnel. Many services can be bound to a single SDP.

Service Delivery Points are defined on the service provider access side and used to bind the
connection of the service to CE device. Many services can be bound to a single SDP.

Service Delivery Points are defined on the service provider network side and used to bind the service
to an MPLS transport tunnel. Only one service can be bound to a single SDP.

Service Delivery Points are defined on the service provider access side and used to bind the service to
CE device. Only one service can be bound to a single SDP.