Free 4A0-100 Exam Dumps

What problem was Spanning Tree Protocol (STP) primarily designed to solve?

A. Inability to perform switch to switch redundancy using multiple connections at Layer 2.
B. Missing protocol field in Ethernet II required to identify redundancy protocols at Layer 2.
C. Missing packet sequencing in Layer 2 Ethernet required to re-order packets on arriva
D. Inability to forward multicast frames without a routing protoco

Correct Answer:A

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

A. Devices on different VLANs cannot communicate with each othe
B. Devices on different VLANs can communicate with each other as long as they are connected to the same switc
C. 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 connectio
D. Devices on different VLANs can communicate with each other if there is an IP router to connect the VLAN

Correct Answer:D

What operation is performed by an LSR when it receives an MPLS labeled packet?

A. The LSR refers to its routing table and forwards the packet to the next LSR or LER without altering the MPLS labe
B. The LSR refers to its MPLS label table, swaps the label and forwards the packet to the next LSR or LE
C. The LSR refers to its MPLS label table forwards the packet to the next LSR or LER without altering the MPLS labe
D. The LSR refers to its MPLS label table, pops the label and forwards the packet to the next IP route

Correct Answer:B

Which of the following is NOT a field in a TCP header?

Correct Answer:B

Which field in the IP routing table contains the name or address of the neighbour that advertised the prefix to the router?

Correct Answer:D