FREE CompTIA Network+ Ethernet Switching Features Questions and Answers

Question 1

A network administrator is configuring a new switch and wants to prevent Layer 2 loops, which can cause broadcast storms and MAC address table instability.
Which of the following features should be enabled to achieve this?

Accepted Answer

Spanning Tree Protocol (STP)

Answer

Port Security

Answer

802.1Q Trunking

Answer

Port Mirroring

Question 2

A technician needs to connect a new high-power Pan-Tilt-Zoom (PTZ) security camera that requires 20W of power to a switch port. Which IEEE Power over Ethernet (PoE) standard should the switch port support at a MINIMUM?

Accepted Answer

802.3at

Answer

802.3bt (Type 4)

Answer

802.3af

Answer

802.3ad

Question 3

A network engineer needs to analyze traffic from a server's switch port on a separate workstation running packet capture software. The engineer wants to send a copy of all traffic from the server's port to the workstation's port without impacting the server's network connectivity. Which switch feature should be used?

Accepted Answer

Port Mirroring

Answer

Port Aggregation

Answer

VLAN Tagging

Answer

Port Security

Question 4

To increase bandwidth and provide redundancy between two switches, an administrator has physically connected two ports from each switch to the other. To make these multiple physical links act as a single logical link, which protocol should be configured?

Accepted Answer

Link Aggregation Control Protocol (LACP)

Answer

Spanning Tree Protocol (STP)

Answer

Dynamic Host Configuration Protocol (DHCP)

Answer

Address Resolution Protocol (ARP)

Question 5

A switch maintains a table that maps the MAC addresses of connected devices to the switch ports they are connected to. When the switch receives a frame with an unknown destination MAC address, what is the default action it takes?

Accepted Answer

It floods the frame out all ports except the one it was received on.

Answer

It sends an ARP request to the default gateway.

Answer

It drops the frame.

Answer

It forwards the frame to the root bridge.

Question 6

Which of the following allows a single physical switch port to carry traffic for multiple VLANs by adding a special tag to the Ethernet frames?

Accepted Answer

IEEE 802.1Q

Answer

Port Security

Answer

Spanning Tree Protocol (STP)

Answer

Native VLAN

A network administrator is configuring a new switch and wants to prevent Layer 2 loops, which can cause broadcast storms and MAC address table instability.Which of the following features should be enabled to achieve this?

A network administrator is configuring a new switch and wants to prevent Layer 2 loops, which can cause broadcast storms and MAC address table instability.
Which of the following features should be enabled to achieve this?