Cisco 640-821 : Introduction to Cisco Networking Technologies

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Cisco 640-821 Exam Syllabus Topics:

Cisco Introduction to Cisco Networking Technologies Sample Questions:

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

A) In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
B) The host network card and the switch port must be capable of operating in full-duplex mode.
C) There are no collisions in full-duplex mode.
D) Ethernet hub ports are preconfigured for full-duplex mode.
E) A dedicated switch port is required for each full-duplex node.

2. Which OSI layer header contains the address of a destination host that is on another network?

A) transport
B) network
C) data link
D) physical
E) application
F) session

3. Refer to the exhibit. A person is trying to send a file from a host on Network A of the JAX
Company to a server on Network Z of the XYZ Company. The file transfer fails. The host on Network A can communicate with other hosts on Network A.
Which command, issued
from router RTA, would be the most useful for troubleshooting this problem?

A) show controllers serial
B) show flash:
C) show interfaces
D) show version
E) show history

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

A) It will drop the frame.
B) It will flood the frame out all ports except Fa0/3.
C) It will flood the frame out all ports.
D) It will forward the frame out port Fa0/3 only.

5. Which Cisco IOS command identifies the system hardware and the IOS currently running on a router?

A) show controllers
B) show startup-config
C) show version
D) show processes
E) show running-config

Solutions: