Cisco 100-105 Online Practice Questions and Exam Preparation

Cisco 100-105 Online Questions & Answers

• Question 451:

  This topology contains 3 routers and 1 switch. Complete the topology.

  Drag the appropriate device icons to the labeled Device

  Drag the appropriate connections to the locations labeled Connections.

  Drag the appropriate IP addresses to the locations labeled IP address

  (Hint: use the given host addresses and Main router information)

  To remove a device or connection, drag it away from the topology.

  Use information gathered from the Main router to complete the configuration of any additional routers.

  No passwords are required to access the Main router. The config terminal command has been disabled for the HQ router. The router does not require any configuration.

  

  Configure each additional router with the following:

  Configure the interfaces with the correct IP address and enable the interfaces.

  Set the password to allow console access to consolepw

  Set the password to allow telnet access to telnetpw

  Set the password to allow privilege mode access to privpw

  Not E: Because routes are not being added to the configurations, you will not be able to ping through the internetwork.

  All devices have cable autosensing capabilities disabled.

  All hosts are PC's

  Correct Answer. Check the answer below
  Check the answer below

  ---

  Answer: Specify appropriate devices and drag them on the "Device" boxes For the device at the bottom-right box, we notice that it has 2 interfaces Fa0/2 and Fa0/4; moreover the link connects the PC on the right with the device on the bottom-right is a straight-through link -> it is a switch

  The question stated that this topology contains 3 routers and 1 switch -> two other devices are routers Place them on appropriate locations as following:

  (Host D and host E will be automatically added after placing two routers. Click on them to access neighboring routers) Specify appropriate connections between these devices:

  +

  The router on the left is connected with the Main router through FastEthernet interfaces: use a crossover cable

  +

  The router on the right is connected with the Main router through Serial interfaces: use a serial cable

  +

  The router on the right and the Switch: use a straight-through cable

  +

  The router on the left and the computer: use a crossover cable (To remember which type of cable you should use, follow these tips:

  -To connect two serial interfaces of 2 routers we use serial cable

  - To specify when we use crossover cable or straight-through cable, we should remember:

  Group 1: Router, Host, Server

  Group 2: Hub, Switch

  One device in group 1 + One device in group 2: use straight-through cable

  Two devices in the same group: use crossover cable

  For example, we use straight-through cable to connect switch to router, switch to host, hub to host, hub to server... and we use crossover cable to connect switch to switch, switch to hub, router to router, host to host.)

  Assign appropriate IP addresses for interfaces:

  From Main router, use show running-config command. (Notice that you may see different IP addresses in the real CCNA exam, the ones shown above are just used for demonstration)

  From the output we learned that the ip address of Fa0/0 interface of the Main router is 192.168.152.177/28. This address belongs to a subnetwork which has:

  Increment: 16 (/28 = 255.255.255.240 or 1111 1111.1111 1111.1111 1111.1111 0000) Network address: 192.168.152.176 (because 176 = 16 * 11 and 176 < 177) Broadcast address: 192.168.152.191 (because 191 = 176 + 16 - 1) And we

  can pick up an ip address from the list that belongs to this subnetwork:

  192.168.152.190 and assign it to the Fa0/0 interface the router on the left Use the same method for interface Serial0/0 with an ip address of 192.168.152.161 Increment: 16 Network address: 192.168.152.160 (because 160 = 16 * 10 and 160 < 161) Broadcast address: 192.168.152.175 (because 176 = 160 + 16 - 1) -> and we choose 192.168.152.174 for Serial0/0 interface of the router on the right Interface Fa0/1 of the router on the left IP (of the computer on the left) : 192.168.152.129/28 Increment: 16 Network address: 192.168.152.128 (because 128 = 16 * 8 and 128 < 129) Broadcast address: 192.168.152.143 (because 143 = 128 + 16 - 1) -> we choose 192.168.152.142 from the list Interface Fa0/0 of the router on the right IP (of the computer on the left) : 192.168.152.225/28 Increment: 16 Network address: 192.168.152.224 (because 224 = 16 * 14 and 224 < 225) Broadcast address: 192.168.152.239 (because 239 = 224 + 16 - 1) -> we choose 192.168.152.238 from the list Let's have a look at the picture below to summarize Configure two routers on the left and right with these commands: Router1 = router on the left Assign appropriate IP addresses to Fa0/0 and Fa0/1 interfaces: Router1>enable Router1#configure terminal Router1(config)#interface fa0/0 Router1(config-if)#ip address 192.168.152.190 255.255.255.240 Router1(config-if)#no shutdown Router1(config-if)#interface fa0/1 Router1(config-if)#ip address 192.168.152.142 255.255.255.240 Router1(config-if)#no shutdown Set passwords (configure on two routers)

  +

  Console password: Router1(config-if)#exit Router1(config)#line console 0 Router1(config-line)#password consolepw Router1(config-line)#login Router1(config-line)#exit

  +

  Telnet password: Router1(config)#line vty 0 4 Router1(config-line)#password telnetpw Router1(config-line)#login Router1(config-line)#exit

  +

  Privilege mode password: Router1(config)#enable password privpw Save the configuration: Router1(config)#exit Router1#copy running-config startup-config Configure IP addresses of Router2 (router on the right) Router2>enable Router2#configure terminal Router2(config)#interface fa0/0 Router2(config-if)#ip address 192.168.152.238 255.255.255.240 Router2(config-if)#no shutdown Router2(config-if)#interface serial0/0 Router2(config-if)#ip address 192.168.152.174 255.255.255.240 Router2(config-if)#no shutdown

  Then set the console, telnet and privilege mode passwords for Router2 as we did for Router1, remember to save the configuration when you finished.

• Question 452:

  Which prefix length is most appropriate to support an Ipv6 point-to-point link without wasting IPv6 address space?

  A. /31
  B. /64
  C. /127
  D. /128
  C. /127

• Question 453:

  Which interface configuration is used with a router-on-a-stick configuration?

  A. VRF
  B. Subinterfaces
  C. PIM sparse mode
  D. Passive-interface
  B. Subinterfaces

• Question 454:

  How can you ensure that only the MAC address of a server is allowed by switch port Fa0/1?

  A. Configure port Fa0/1 to accept connections only from the static IP address of the server.
  B. Configure the server MAC address as a static entry of port security.
  C. Use a proprietary connector type on Fa0/1 that is incomputable with other host connectors.
  D. Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
  B. Configure the server MAC address as a static entry of port security.

• Question 455:

  DRAG DROP Drag and drop the show cdp commands from the top onto the output they generate below

  Select and Place:

  

  

• Question 456:

  Which two differences between the OSI and TCP/IP networking models are true? (Choose two.)

  A. Only the TCP/IP model has a network interface layer.
  B. The OSI model places the TCP protocol in the application layer.
  C. Only the OSI model has seven layers.
  D. Only the TCP/IP model has a session layer.
  E. Only the TCP/IP model has six layers.
  A. Only the TCP/IP model has a network interface layer.
  C. Only the OSI model has seven layers.

• Question 457:

  Refer to the exhibit. Which statement is correct regarding the configuration shown?

  

  A. This will not work as the subnet mask on serial interfaces must be /30.
  B. What is shown as being configured would be considered a default route.
  C. This configuration creates a bidirectional path between RouterA and RouterB.
  D. The command ip route 172.16.1.0 255.255.255.0 s0/0/0 would provide similar routing functionality.
  D. The command ip route 172.16.1.0 255.255.255.0 s0/0/0 would provide similar routing functionality.

• Question 458:

  Refer to the exhibit.

  

  If the hubs in the graphic were replaced by switches, what would be virtually eliminated?

  A. broadcast domains
  B. repeater domains
  C. Ethernet collisions
  D. signal amplification
  E. Ethernet broadcasts
  C. Ethernet collisions

• Question 459:

  

  

  

  

  Why application that are installed on PC's in R2 LAN network 10.100.20.0/24 are unable to communicate with Server1?

  A. A standard ACL statement that is configured on R1 is blocking the traffic sourced from Server1 network.
  B. A standard ACL statement that is configured on R2 is blocking the traffic sourced from Server1 network.
  C. A standard ACL statement that is configured on R2 is blocking the traffic sourced from R2 LAN network.
  D. A standard ACL statement that is configured on R1 is blocking the traffic sourced from R2 LAN network.
  B. A standard ACL statement that is configured on R2 is blocking the traffic sourced from Server1 network.

• Question 460:

  Which of the following options could be used on router to prevent the reassignment of an IP address statically?

  A. Pool
  B. Lease
  C. Client ID
  D. Exclude address
  D. Exclude address