Net+ 3.2 OBQ

What is the primary function of a hub in an Ethernet network?

• To act as a repeater

• To provide full-duplex communication

• To route data packets

• To encrypt data

In Ethernet, a broadcast transmission is sent to all hosts using the broadcast MAC address ______.

• A) ff:ff:ff:ff:ff:ff

• B) 00:00:00:00:00:00

• C) aa:aa:aa:aa:aa:aa

• D) 11:11:11:11:11:11

What is the first step in the hub-based Ethernet communication process?

• The hub regenerates the transmission

• Host AC recognizes its address

• The A4 host sends a frame using its Tx pair via an MDI interface

• Host AB receives the frame and ignores it.

In the hub-based Ethernet communication, the hub receives a weakened and distorted transmission at which port?

• MDI-X port F1

• MDI-X port F2

• MDI-X port F3

• MDI-X port F4

What is the primary function of an Ethernet bridge at the Data Link layer?

• To increase the number of nodes in a network

• To establish separate physical network segments while keeping all nodes in the same logical network

• To connect different types of networks

• To provide internet access.

In a network, a bridge helps to create separate ________ domains to reduce collisions.

• broadcast

• collision

• access

• logical

What is the role of an Ethernet bridge in a network?

• To create a collision domain

• To forward only appropriate traffic

• To repeat transmissions on all ports

• To ignore all frames

Fill in the blank: When the bridge is initialized, the database's ______ is empty, but information is constantly added as the bridge listens to the connected segments.

• IP address table

• MAC address table

• Routing table

• ARP table

What happens if no record of the MAC address exists or the frame is a broadcast or multicast?

• The bridge discards the frame.

• The bridge floods the frame to all segments except for the source segment.

• The bridge sends the frame back to the source segment.

• The bridge stores the frame for later use.

If no record of the MAC address exists, the bridge floods the frame to all segments except for the ______ segment.

• destination

• source

• intermediate

• final