Cisco 100-101 Online Practice Questions and Exam Preparation

Cisco 100-101 Online Questions & Answers

• Question 71:

  A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?

  A. decrease the window size
  B. use a different source port for the session
  C. decrease the sequence number
  D. obtain a new IP address from the DHCP server
  E. start a new session using UDP
  A. decrease the window size

• Question 72:

  Which statement is true?

  A. An IPv6 address is 64 bits long and is represented as hexadecimal characters.
  B. An IPv6 address is 32 bits long and is represented as decimal digits.
  C. An IPv6 address is 128 bits long and is represented as decimal digits.
  D. An IPv6 address is 128 bits long and is represented as hexadecimal characters.
  D. An IPv6 address is 128 bits long and is represented as hexadecimal characters.

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  http://www.cisco.com/en/US/technologies/tk648/tk872/technologies_white_paper0900aecd8026 003d.pdf

  One of the key advantages IPv6 brings is the exponentially larger address space. The following will outline the basic address architecture of IPv6. 128-bit-long addresses Represented in hexadecimal format: Uses CIDR principles: prefix/prefix length x:x:x:x:x:x:x:x, where x is a 16-bit hex field The last 64 bits are used for the interface ID

• Question 73:

  Refer to the exhibit.

  

  A person is trying to send a file from a host on Network A of the JAX Company to a server on Network Z of the XYZ Company. The file transfer fails. The host on Network A can communicate with other hosts on Network A. Which command, issued from router RTA, would be the most useful for troubleshooting this problem?

  A. show flash:
  B. show history
  C. show version
  D. show interfaces
  E. show controllers serial
  D. show interfaces

• Question 74:

  Refer to the exhibit.

  

  Serial 0/0 does not respond to a ping request from a host on the FastEthernet 0/0 LAN. How can this problem be corrected?

  A. Enable the Serial 0/0 interface.
  B. Correct the IP address for Serial 0/0.
  C. Correct the IP address for FastEthernet 0/0
  D. Change the encapsulation type on Serial 0/0
  E. Enable autoconfiguration on the Serial 0/0 interface
  A. Enable the Serial 0/0 interface.

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  Serial 0/0 interface is administratively down therefore, you will have to run the "no shutdown" command to enable the interface for data.

• Question 75:

  The network administrator is using a Windows PC application that is called putty.exe for remote communication to a switch for network troubleshooting. Which two protocols could be used during this communication? (Choose two.)

  A. SNMP
  B. HTTP
  C. Telnet
  D. RMON
  E. SSH
  C. Telnet
  E. SSH

• Question 76:

  Refer to the exhibit.

  

  A company wants to use NAT in the network shown. Which commands will apply the NAT configuration to the proper interfaces? (Choose two.)

  A. R1(config)# interface serial0/1 R1(config-if)# ip nat inside
  B. R1(config)# interface serial0/1 R1(config-if)# ip nat outside
  C. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat inside
  D. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat outside
  E. R1(config)# interface serial0/1 R1(config-if)# ip nat outside source pool 200.2.2.18 255.255.255.252
  F. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat inside source 10.10.0.0 255.255.255.0
  B. R1(config)# interface serial0/1 R1(config-if)# ip nat outside
  C. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat inside

• Question 77:

  Which IP address is a private address?

  A. 12.0.0.1
  B. 168.172.19.39
  C. 172.20.14.36
  D. 172.33.194.30
  E. 192.169.42.34
  C. 172.20.14.36

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• Question 78:

  Refer to the exhibit.

  

  For security reasons, information about RTA, including platform and IP addresses, should not be accessible from the Internet. This information should, however, be accessible to devices on the internal networks of RTA. Which command or series of commands will accomplish these objectives?

  A. RTA(config)#no cdp run
  B. RTA(config)#no cdp enable
  C. RTA(config)#interface s0/0 RTA(config-if)#no cdp run
  D. RTA(config)#interface s0/0 RTA(config-if)#no cdp enable
  D. RTA(config)#interface s0/0 RTA(config-if)#no cdp enable

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  http://www.cisco.com/en/US/tech/tk962/technologies_tech_note09186a00801aa000.shtml#topic enab

  When CDP is enabled globally using the cdp run command, it is enabled by default on all supported interfaces (except for Frame Relay multipoint subinterfaces) to send and receive CDP information. You can disable CDP on an interface that supports CDP with the no cdp enable command. Router#show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater

  

  Router# On this router, CDP is enabled on Serial 1 and Ethernet 0 interfaces. Disable CDP on the Serial 1 interface and verify if the neighbor device is discovered on the serial 1 interface, as this output shows: Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#interface s1 Router(config-if)#no cdp enable Router(config-if)# Z Router#4w5D. %SYS-5-CONFIG_I: Configured from console by console

• Question 79:

  

  What is the subnet broadcast address of the LAN connected to Router1?

  A. 192.168.8.15
  B. 192.168.8.31
  C. 192.168.8.63
  D. 192.168.8.127
  A. 192.168.8.15

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  The IP address assigned to FA0/1 is 192.168.8.9/29, making 192.168.8.15 the broadcast address.

• Question 80:

  Refer to the exhibit.

  

  The ports that are shown are the only active ports on the switch. 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 MAC address of 0000.00aa.aaaa will be added to the MAC address table.
  B. The MAC address of 0000.00dd.dddd will be added to the MAC address table.
  C. The frame will be forwarded out port fa0/3 only.
  D. The frame will be forwarded out fa0/1, fa0/2, and fa0/3.
  E. The frame will be forwarded out all the active ports.
  A. The MAC address of 0000.00aa.aaaa will be added to the MAC address table.
  D. The frame will be forwarded out fa0/1, fa0/2, and fa0/3.

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  If the switch already has the MAC address in its table for the destination, it will forward the frame directly to the destination port. If it was not already in its MAC table, then they frame would have been flooded out all ports except for the port that it came from. It will also add the MAC address of the source device to its MAC address table