Cisco 100-105 Online Practice Questions and Exam Preparation

Cisco 100-105 Online Questions & Answers

• Question 81:

  Which component of an Ethernet frame supports error detection?

  A. EtherType
  B. frame check sequence
  C. 802.1Q tag
  D. preamble
  B. frame check sequence

• Question 82:

  Which NAT term is defined as a group of addresses available for NAT use?

  A. NAT pool
  B. dynamic NAT
  C. static NAT
  D. one-way NAT
  A. NAT pool

• Question 83:

  A network administrator is connecting PC hosts A and B directly through their Ethernet interfaces as shown in the graphic. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts? (Choose two.)

  

  A. A crossover cable should be used in place of the straight-through cable.
  B. A rollover cable should be used in place of the straight-through cable.
  C. The subnet masks should be set to 255.255.255.192
  D. A default gateway needs to be set on each host.
  E. The hosts must be reconfigured to use private IP addresses for direct connections of this type.
  F. The subnet masks should be set to 255.255.255.0
  A. A crossover cable should be used in place of the straight-through cable.
  F. The subnet masks should be set to 255.255.255.0

• Question 84:

  Drag and Drop Question

  Drag and drop the extended traceout option from the left onto the correct description on the right.

  Select and Place:

  

  

• Question 85:

  Click on the correct location or locations in the exhibit.

  

  Whit statement is true about how the router with the IP address 172.16.236.1 will send a data packet to this computer?

  A. The router encapsulates the packet in a frame addressed to the MAC address FF-FF-FF-FF-FF-FF and sends it out the interface connected to the 172.16.236.0 network.
  B. The router uses an ARP request to obtain the correct MAC address for the computer. It then encapsulates the packet in a frame addressed to the MAC address 00-0D-60-FD-F0-34.
  C. The router encapsulates the packet in a frame addressed to the MAC address of the next hop router on the path to the computer.
  D. The router works at Layer 3 of the OSI model and does not use Layer 2 MAC addresses to send packets to the destination computer.
  B. The router uses an ARP request to obtain the correct MAC address for the computer. It then encapsulates the packet in a frame addressed to the MAC address 00-0D-60-FD-F0-34.

• Question 86:

  Why do large OSPF networks use a hierarchical design? (Choose three.)

  A. to decrease latency by increasing bandwidth
  B. to reduce routing overhead
  C. to speed up convergence
  D. to confine network instability to single areas of the network
  E. to reduce the complexity of router configuration
  F. to lower costs by replacing routers with distribution layer switches
  B. to reduce routing overhead
  C. to speed up convergence
  D. to confine network instability to single areas of the network

• Question 87:

  Which NAT type is used to translate a single inside address to a single outside address?

  A. dynamic NAT
  B. NAT overload
  C. PAT
  D. static NAT
  D. static NAT

• Question 88:

  What is the default number of secure MAC addresses for an interface configured with port security?

  A. 1
  B. 255
  C. 1042
  D. 3072
  A. 1

• Question 89:

  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 replace 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 replace 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 90:

  Which two IP addresses are valid multicast addresses? (Choose two.)

  A. 127.0.0.5
  B. 223.0.0.1
  C. 224.0.0.1
  D. 239.1.1.1
  E. 254.5.5.5
  B. 223.0.0.1
  D. 239.1.1.1