Cisco 640-822 Online Practice Questions and Exam Preparation

Cisco 640-822 Online Questions & Answers

• Question 161:

  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?

  A. Change the first line to interface fastethernet 0/1.
  B. Change the first line to interface vlan 0/1.
  C. Change the fifth line to ip default-gateway 192.168.17.241.
  D. Change the fifth line to ip route 0.0.0.0 0.0.0.0 192.168.17.1.
  E. Change the sixth line to line con 0.
  C. Change the fifth line to ip default-gateway 192.168.17.241.

• Question 162:

  Refer to the exhibit.

  

  The network administrator is testing connectivity from the branch router to the newly installed application server. What is the most likely reason for the first ping having a success rate of only 60 percent?

  A. The network is likely to be congested, with the result that packets are being intermittently dropped.
  B. The branch router had to resolve the application server MAC address.
  C. There is a short delay while NAT translates the server IP address.
  D. A routing table lookup delayed forwarding on the first two ping packets.
  E. The branch router LAN interface should be upgraded to FastEthernet.
  B. The branch router had to resolve the application server MAC address.

• Question 163:

  What is one reason that WPA encryption is preferred over WEP?

  A. A WPA key is longer and requires more special characters than the WEP key.
  B. The access point and the client are manually configured with different WPA key values.
  C. WPA key values remain the same until the client configuration is changed.
  D. The values of WPA keys can change dynamically while the system is used.
  D. The values of WPA keys can change dynamically while the system is used.

• Question 164:

  A host has had a NIC card installed. The NIC can run in either half or full-duplex mode. The host is connected to a hub that is located in a wiring closet. The network administrator notes that the NIC is only communicating in half-duplex mode. Which action could be taken to enable full- duplex operation?

  A. Replace the host NIC.
  B. Replace the hub with a Fast Ethernet switch.
  C. Replace the cable between the PC and hub port.
  D. Install a second NIC card in the host and connect it to another port on the hub.
  B. Replace the hub with a Fast Ethernet switch.

• Question 165:

  What is the maximum number of bits that can be borrowed to create subnets if a Class B network address is being used?

  A. 2
  B. 6
  C. 8
  D. 14
  E. 16
  D. 14

• Question 166:

  Refer to the exhibit.

  

  PC1 pings PC2. What three things will CORE router do with the data that is received from PC1? (Choose three.)

  A. The data frames will be forwarded out interface FastEthernet0/1 of CORE router.
  B. The data frames will be forwarded out interface FastEthernet1/0 of CORE router.
  C. CORE router will replace the destination IP address of the packets with the IP address of PC2.
  D. CORE router will place the MAC address of PC2 in the destination MAC address of the frames.
  E. CORE router will put the IP address of the forwarding FastEthernet interface in the place of the source IP address in the packets.
  F. CORE router will put the MAC address of the forwarding FastEthernet interface in the place of the source MAC address.
  B. The data frames will be forwarded out interface FastEthernet1/0 of CORE router.
  D. CORE router will place the MAC address of PC2 in the destination MAC address of the frames.
  F. CORE router will put the MAC address of the forwarding FastEthernet interface in the place of the source MAC address.

• Question 167:

  Which statement is true for PPP?

  A. cannot be configured on asynchronous links
  B. uses LCP for establishing and configuring different network layer protocols
  C. uses a family of NCPs for establishing, configuring, and testing the data-link connection
  D. has an authentication phase that is performed before the network layer protocol phase
  D. has an authentication phase that is performed before the network layer protocol phase

• Question 168:

  Refer to the exhibit.

  

  As packets travel from Mary to Robert, which three devices will use the destination MAC address of the packet to determine a forwarding path? (Choose three.)

  A. Hub1
  B. Switch1
  C. Router1
  D. Switch2
  E. Router2
  F. Switch3
  B. Switch1
  D. Switch2
  F. Switch3

• Question 169:

  WAN data link encapsulation types include which of the following? (Choose two.)

  A. T1
  B. Frame Relay
  C. DSL
  D. PPP
  E. ISDN
  B. Frame Relay
  D. PPP

• Question 170:

  Which IP addresses are valid for hosts belonging to the 10.1.160.0/20 subnet? (Choose three.)

  A. 10.1.168.0
  B. 10.1.176.1
  C. 10.1.174.255
  D. 10.1.160.255
  E. 10.1.160.0
  F. 10.1.175.255
  A. 10.1.168.0
  C. 10.1.174.255
  D. 10.1.160.255