Cisco 640-822 Online Practice Questions and Exam Preparation

Cisco 640-822 Online Questions & Answers

• Question 21:

  Refer to the exhibit.

  

  The MAC address table is shown in its entirety. The Ethernet frame that is shown arrives at the switch. What two operations will the switch perform when it receives this frame? (Choose two.)

  A. The switch will not forward a frame with this destination MAC address.
  B. The MAC address of 0000.00aa.aaaa will be added to the MAC Address Table.
  C. The MAC address of ffff.ffff.ffff will be added to the MAC address table.
  D. The frame will be forwarded out all active switch ports except for port fa0/0.
  E. The frame will be forwarded out fa0/0 and fa0/1 only.
  F. The frame will be forwarded out all the ports on the switch.
  B. The MAC address of 0000.00aa.aaaa will be added to the MAC Address Table.
  D. The frame will be forwarded out all active switch ports except for port fa0/0.

• Question 22:

  If a host experiences intermittent issues that relate to congestion within a network while remaining connected, what could cause congestion on this LAN?

  A. half-duplex operation
  B. broadcast storms
  C. network segmentation
  D. multicasting
  B. broadcast storms

• Question 23:

  Which three network addresses are reserved for private network use? (Choose three.)

  A. 10.0.0.0
  B. 172.15.0.0
  C. 172.31.0.0
  D. 192.162.24.0
  E. 192.168.255.0
  F. 224.192.0.0
  A. 10.0.0.0
  C. 172.31.0.0
  E. 192.168.255.0

• Question 24:

  Which of the following correctly pairs the dotted decimal subnet mask with the correct number of binary bits that represent the subnet mask?

  A. 255.255.255.192 and /25
  B. 255.255.255.248 and /28
  C. 255.255.255.224 and /26
  D. 255.255.255.248 and /27
  E. 255.255.255.240 and /28
  F. 255.255.255.240 and /16
  E. 255.255.255.240 and /28

• Question 25:

  Which two of these functions do routers perform on packets? (Choose two.)

  A. examine the Layer 2 headers of inbound packets and use that information to determine the next hops for the packets
  B. update the Layer 2 headers of outbound packets with the MAC addresses of the next hops
  C. examine the Layer 3 headers of inbound packets and use that information to determine the next hops for the packets
  D. examine the Layer 3 headers of inbound packets and use that information to determine the complete paths along which the packets will be routed to their ultimate destinations
  E. update the Layer 3 headers of outbound packets so that the packets are properly directed to valid next hops
  F. update the Layer 3 headers of outbound packets so that the packets are properly directed to their ultimate destinations
  B. update the Layer 2 headers of outbound packets with the MAC addresses of the next hops
  C. examine the Layer 3 headers of inbound packets and use that information to determine the next hops for the packets

• Question 26:

  Which types of cables are required to interconnect the devices shown in the graphic? (Choose three.)

  

  A. V.35 cable
  B. crossover cable
  C. USB cable
  D. RJ-11 cable
  E. rollover cable
  F. straight-through cable
  B. crossover cable
  E. rollover cable
  F. straight-through cable

• Question 27:

  What starting binary pattern indicates an address range evenly split between network and host size?

  A. 01xxxxxx
  B. 0xxxxxxx
  C. 10xxxxxx
  D. 110xxxxx
  C. 10xxxxxx

• Question 28:

  SIMULATION

  

  Correct Answer. Check the answer below
  Check the answer below

  ---

  Answer: Router>enable

  Router#config terminal

  Router(config)#hostname Apopka

  2) Enable-secret password (cisco10):

  Apopka(config)#enable secret cisco10

  3) Set the console password to RouterPass:

  Apopka(config)#line console 0

  Apopka(config-line)#password RouterPass

  Apopka(config-line)#login

  Apopka(config-line)#exit

  4) Set the Telnet password to scan90:

  Apopka(config)#line vty 0 4

  Apopka(config-line)#password scan90

  Apopka(config-line)#login

  Apopka(config-line)#exit

  5) Configure Ethernet interface (on the right) of router Apopka:

  The subnet mask of the Ethernet network 209.165.201.0 is 27. From this subnet mask, we can find out the increment by converting it into binary form, that is /27 = 1111 1111.1111 1111.1111 1111.1110 0000. Pay more attention to the last bit

  1 because it tells us the increment, using the formula:

  Increment = 2place of the last bit 1 (starts counting from 0,from right to left), in this case increment = 25 = 32. Therefore:

  Increment: 32

  Network address: 209.165.201.0

  Broadcast address: 209.165.201.31 (because 209.165.201.32 is the second subnetwork, so the previous IP - 209.165.201.31 - is the broadcast address of the first subnet).

  -> The second assignable host address of this subnetwork is 209.165.201.2/27

  Assign the second assignable host address to Fa0/0 interface of Apopka router:

  Apopka(config)#interface Fa0/0

  Apopka(config-if)#ip address 209.165.201.2 255.255.255.224 Apopka(config-if)#no shutdown

  Apopka(config-if)#exit

  6) Configure Serial interface (on the left) of router Apopka:

  Using the same method to find out the increment of the Serial network:

  Serial network 192.0.2.128/28:

  Increment: 16 (/28 = 1111 1111.1111 1111.1111 1111.1111 0000) Network address: 192.0.2.128 (because 8 * 16 = 128 so 192.0.2.128 is also the network address of this subnet)

  Broadcast address: 192.0.2.143

  -> The last assignable host address in this subnet is 192.0.2.142/28.

  Assign the last assignable host address to S0/0/0 interface of Apopka router:

  Apopka(config)#interface S0/0/0 (or use interface S0/0 if not successful) Apopka(config-if)#ip address 192.0.2.142 255.255.255.240 Apopka(config-if)#no shutdown

  Apopka(config-if)#exit

  7) Configure RIP v2 routing protocol:

  Apopka(config)#router rip

  Apopka(config-router)#version 2

  Apopka(config-router)#network 209.165.201.0

  Apopka(config-router)#network 192.0.2.128

  Apopka(config-router)#end

  Save the configuration:

  Apopka#copy running-config startup-config

  Finally, you should use the ping command to verify all are working properly!

• Question 29:

  The network administrator is configuring a Cisco router. The prompt on the screen is:

  Router(config-if)#.

  What is true of this prompt? (Choose three.)

  A. An interface password can be set at this prompt.
  B. Settings that affect all router interfaces can be globally configured at this prompt.
  C. An interface can be activated or deactivated from this prompt.
  D. The administrator will arrive at this prompt by typing interface fa0/0 from the global configuration mode.
  E. The administrator will arrive at this prompt by typing configure terminal from the EXEC prompt.
  F. An interface IP address can be configured at this prompt.
  C. An interface can be activated or deactivated from this prompt.
  D. The administrator will arrive at this prompt by typing interface fa0/0 from the global configuration mode.
  F. An interface IP address can be configured at this prompt.

• Question 30:

  Refer to the exhibit. A user cannot reach any web sites on the Internet, but others in the department are not having a problem. What is the most likely cause of the problem?

  

  A. IP routing is not enabled.
  B. The default gateway is not in the same subnet.
  C. A DNS server address is not reachable by the PC.
  D. A DHCP server address is not reachable by the PC.
  E. NAT has not been configured on the router that connects to the Internet.
  C. A DNS server address is not reachable by the PC.