Cisco 640-822 Online Practice Questions and Exam Preparation

Cisco 640-822 Online Questions & Answers

• Question 81:

  What are two advantages of Layer 2 Ethernet switches over hubs? (Choose two.)

  A. decreasing the number of collision domains
  B. filtering frames based on MAC addresses
  C. allowing simultaneous frame transmissions
  D. increasing the size of broadcast domains
  E. increasing the maximum length of UTP cabling between devices
  B. filtering frames based on MAC addresses
  C. allowing simultaneous frame transmissions

• Question 82:

  Refer to the exhibit.

  

  Mary is sending an instant message to Robert. The message will be broken into a series of packets that will traverse all network devices. What addresses will populate these packets as they are forwarded from Router1 to Router2?

  

  A. Exhibit A
  B. Exhibit B
  C. Exhibit C
  D. Exhibit D
  E. Exhibit E
  B. Exhibit B

• Question 83:

  Which of the following are found in a TCP header, but not in a UDP header? (Choose three.)

  A. sequence number
  B. acknowledgment number
  C. source port
  D. destination port
  E. window size
  F. checksum
  A. sequence number
  B. acknowledgment number
  E. window size

• Question 84:

  An administrator previously changed the encapsulation on a synchronous serial line and saved the configuration. Now the administrator wants to restore the encapsulation back to the default. What action can the administrator do to return the interface back to its default encapsulation?

  A. Change the encapsulation to ARPA.
  B. Configure the interface for HDLC encapsulation.
  C. Reboot the router and allow it to reload the configuration.
  D. Issue the shutdown then no shutdown commands to reset the encapsulation on the interface.
  E. Remove the cable and plug it back in to allow the router to autonegotiate encapsulation settings.
  B. Configure the interface for HDLC encapsulation.

• Question 85:

  The router console screen is rapidly displaying line after line of output similar to what is shown in the exhibit. The help desk has called to say that users are reporting a slowdown in the network. What will solve this problem while not interrupting network operation?

  

  A. Save the configuration and reboot the router.
  B. Press the CTRL+C keys.
  C. Enter the no debug all command.
  D. Use the show processes command.
  E. Enter the terminal monitor command.
  C. Enter the no debug all command.

• Question 86:

  Refer to the exhibit. Two 2950 switches connect through ports fa0/24 using a straight-through cable. Based on the output that is shown in the exhibit and the information that is given, what can be concluded about this network?

  

  A. STP can not be configured on a FastEthernet ports.
  B. An IP address and default gateway must be configured on each switch.
  C. The switches do not share the same VTP domain.
  D. Port fa0/24 must be configured as a trunk in order for the switches to share neighbor information.
  E. The switches are cabled incorrectly.
  E. The switches are cabled incorrectly.

• Question 87:

  After issuing the copy run start command, you make several changes to your lab router and realize that you were referencing a list of bad IP addresses to make these changes. Which command is most efficient to resolve your mistakes?

  A. erase flash
  B. restart
  C. renew
  D. erase nvram
  E. reload
  F. erase start
  E. reload

• Question 88:

  Which of these is a routed protocol?

  A. RIP
  B. UDP
  C. IP
  D. HTTP
  E. IGRP
  C. IP

• Question 89:

  Refer to the exhibit. Which statement is correct regarding the results shown for the show interface s0/0/0 command?

  

  A. The subnet mask for this interface is 255.255.255.248.
  B. The subnet mask for this interface is 255.255.255.252.
  C. The IP address that is configured on s0/0/0 is a public address.
  D. This interface can be enabled by issuing a no shutdown command.
  E. The default encapsulation protocol for a Cisco serial interface is PPP.
  D. This interface can be enabled by issuing a no shutdown command.

• Question 90:

  Which of the following are characteristics of a Frame Relay point-to-point subinterface? (Choose two.)

  A. requires use of Inverse ARP
  B. resolves NBMA split horizon issues
  C. requires the frame-relay map command
  D. maps one IP subnet per DLCI
  E. maps one IP subnet across multiple DLCIs
  B. resolves NBMA split horizon issues
  D. maps one IP subnet per DLCI