Cisco 640-822 Online Practice Questions and Exam Preparation

Cisco 640-822 Online Questions & Answers

• Question 1:

  Which two devices can interfere with the operation of a wireless network because they operate on similar frequencies? (Choose two.)

  A. copier
  B. microwave oven
  C. toaster
  D. cordless phone
  E. IP phone
  F. AM radio
  B. microwave oven
  D. cordless phone

• Question 2:

  Refer to the exhibit.

  

  A network technician is unable to ping from R1 to R2. What will help correct the problem?

  A. Ensure that the serial cable is correctly plugged in to the interfaces.
  B. Apply the clock rate 56000 configuration command to the serial0/1 interface of R1.
  C. Configure the serial0/1 interfaces on R1 and R2 with the no shutdown command.
  D. Change the address of the serial0/1 interface of R1 to 192.1.1.4.
  E. Change the subnet masks of both interfaces to 255.255.255.240.
  A. Ensure that the serial cable is correctly plugged in to the interfaces.

• Question 3:

  Refer to the topology below.

  

  What interfaces on Router1 have not had any configurations applied? (Choose two)

  A. Ethernet 0
  B. FastEthenet 0/0
  C. FastEthernet 0/1
  D. Serial 0
  E. Serial 0/0
  F. Serial 0/1
  C. FastEthernet 0/1
  F. Serial 0/1

• Question 4:

  Refer to the exhibit. A network technician is attempting to use HyperTerminal to configure a new router using the settings shown. What is the reason the technician is unable to connect to the router?

  

  A. The bits per second should be set to 9600.
  B. The data bits should be set to 6.
  C. Parity should be set to mark.
  D. The stop bits should be set to 2.
  E. Flow control should be set to hardware.
  A. The bits per second should be set to 9600.

• Question 5:

  Which of the following describe private IP addresses? (Choose two.)

  A. addresses chosen by a company to communicate with the Internet
  B. addresses that cannot be routed through the public Internet
  C. addresses that can be routed through the public Internet
  D. a scheme to conserve public addresses
  E. addresses licensed to enterprises or ISPs by an Internet registry organization
  B. addresses that cannot be routed through the public Internet
  D. a scheme to conserve public addresses

• Question 6:

  SW-C has just been added to the network shown in the graphic.

  

  What is the purpose of assigning a default gateway to this switch?

  A. allows connectivity to Router B from the switch prompt
  B. allows console port connectivity to the switch from Host A
  C. allows connectivity to remote network devices from Host B
  D. allows the switch to pass traffic between Host A and Host B
  A. allows connectivity to Router B from the switch prompt

• Question 7:

  Which of the following commands enables a network administrator to verify the application layer connectivity between source and destination?

  A. ping
  B. telnet
  C. traceroute
  D. verify
  E. trace
  B. telnet

• Question 8:

  Refer to the exhibit. The DHCP settings have recently been changed on the DHCP server and the client is no longer able to reach network resources. What should be done to correct this situation?

  

  A. Verify that the DNS server address is correct in the DHCP pool.
  B. Ping the default gateway to populate the ARP cache.
  C. Use the tracert command on the DHCP client to first determine where the problem is located.
  D. Clear all DHCP leases on the router to prevent address conflicts.
  E. Issue the ipconfig command with the /release and /renew options in a command window.
  E. Issue the ipconfig command with the /release and /renew options in a command window.

• Question 9:

  A single 802.11g access point has been configured and installed in the center of a square office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem? (Choose three.)

  A. mismatched TKIP encryption
  B. null SSID
  C. cordless phones
  D. mismatched SSID
  E. metal file cabinets
  F. antenna type or direction
  C. cordless phones
  E. metal file cabinets
  F. antenna type or direction

• Question 10:

  A switch receives a frame on one of its ports. There is no entry in the MAC address table for the destination MAC address. What will the switch do with the frame?

  A. drop the frame
  B. forward it out of all ports except the one that received it
  C. forward it out of all ports
  D. store it until it learns the correct port
  B. forward it out of all ports except the one that received it