Refer to the exhibit.

Pierre has just installed the mail server and Switch2. For security reasons UDP packets are not
permitted outbound on the Fa0/1 router interface. Pierre is now at his workstation testing the new
installation and is not able to establish SMTP communication to the mail server.
What is the most likely cause for lack of communication between Pierre’s workstation and the mail
server?

A workstation has just resolved a browser URL to the IP address of a server. What protocol will
the workstation now use to determine the destination MAC address to be placed into frames
directed toward the server?

Which transport layer protocol provides best-effort delivery service with no acknowledgment
receipt required?

Refer to the topology and switching table shown in the graphic.

Host B sends a frame to Host C. What will the switch do with the frame?

Which three statements are true about the operation of a full-duplex Ethernet network?
(Choose three.)

If the hubs in the graphic were replaced by switches, what would be virtually eliminated?

Refer to the exhibit.

SwitchA receives the frame with the addressing shown in the exhibit. According to the command
output also shown in the exhibit, how will SwitchA handle this frame?

Refer to the exhibit.

A network administrator has configured a Catalyst 2950 switch for remote management by pasting
into the console the configuration commands that are shown in the exhibit. However, a Telnet
session cannot be successfully established from a remote host. What should be done to fix this
problem?

Refer to the exhibit.

All devices attached to the network are shown. How many collision domains are present in this
network?

Refer to the exhibit.

An administrator replaced the NIC in a desktop PC with a new NIC. The NIC in the PC
configuration is set to “100 Mb Half.” Now the PC has intermittent connectivity and loss of
communication so the administrator began troubleshooting on the switch. Using the switch output
shown, what is the cause of the problem?