Cisco 200-120 Online Practice Questions and Exam Preparation

Cisco 200-120 Online Questions & Answers

• Question 31:

  Which two statements about the tunnel mode ipv6ip command are true? (Choose two.)

  A. It enables the transmission of IPv6 packets within the configured tunnel.
  B. It specifies IPv4 as the encapsulation protocol.
  C. It specifies IPv6 as the encapsulation protocol.
  D. It specifies IPv6 as the transport protocol.
  E. It specifies that the tunnel is a Teredo tunnel.
  A. It enables the transmission of IPv6 packets within the configured tunnel.
  B. It specifies IPv4 as the encapsulation protocol.

• Question 32:

  A network administrator enters the following command on a router: logging trap 3. What are three message types that will be sent to the Syslog server? (Choose three.)

  A. informational
  B. emergency
  C. warning
  D. critical
  E. debug
  F. error
  B. emergency
  D. critical
  F. error

  ---

  The Message Logging is divided into 8 levels as listed below: If you specify a level with the "logging trap level" command, that level and all the higher levels will be logged. For example, by using the "logging trap 3 command, all the logging of emergencies, alerts, critical, and errors, will be logged.

  

• Question 33:

  Refer to the exhibit.

  

  The following commands are executed on interface fa0/1 of 2950Switch.

  2950Switch(config-if)# switchport port-security 2950Switch(config-if)# switchport port-security mac-address sticky 2950Switch(config-if)# switchport port-security maximum 1

  The Ethernet frame that is shown arrives on interface fa0/1. What two functions will occur when this frame is received by 2950Switch? (Choose two.)

  A. The MAC address table will now have an additional entry of fa0/1 FFFF.FFFF.FFFF.
  B. Only host A will be allowed to transmit frames on fa0/1.
  C. This frame will be discarded when it is received by 2950Switch.
  D. All frames arriving on 2950Switch with a destination of 0000.00aa.aaaa will be forwarded out fa0/1.
  E. Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1.
  F. Only frames from source 0000.00bb.bbbb, the first learned MAC address of 2950Switch, will be forwarded out fa0/1.
  B. Only host A will be allowed to transmit frames on fa0/1.
  D. All frames arriving on 2950Switch with a destination of 0000.00aa.aaaa will be forwarded out fa0/1.

  ---

  The configuration shown here is an example of port security, specifically port security using sticky addresses. You can use port security with dynamically learned and static MAC addresses to restrict a port's ingress traffic by limiting the MAC addresses that are allowed to send traffic into the port. When you assign secure MAC addresses to a secure port, the port does not forward ingress traffic that has source addresses outside the group of defined addresses. If you limit the number of secure MAC addresses to one and assign a single secure MAC address, the device attached to that port has the full bandwidth of the port.

  Port security with sticky MAC addresses provides many of the same benefits as port security with static MAC addresses, but sticky MAC addresses can be learned dynamically. Port security with sticky MAC addresses retains dynamically learned MAC addresses during a link-down condition.

• Question 34:

  Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices?

  A. enable cdp
  B. cdp enable
  C. cdp run
  D. run cdp
  C. cdp run

  ---

  CDP is enabled on Cisco routers by default. If you prefer not to use the CDP capability, disable it with the no cdp run command. In order to reenable CDP, use the cdp run command in global configuration mode. The "cdp enable" command is an interface command, not global.

• Question 35:

  It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit. Which of the following procedures are required to accomplish this task? (Choose three.)

  A. Remove the IP address from the physical interface.
  B. Encapsulate the physical interface with multipoint PPP.
  C. Create the virtual interfaces with the interface command.
  D. Configure each subinterface with its own IP address.
  E. Disable split horizon to prevent routing loops between the subinterface networks.
  F. Configure static Frame Relay map entries for each subinterface network.
  A. Remove the IP address from the physical interface.
  C. Create the virtual interfaces with the interface command.
  D. Configure each subinterface with its own IP address.

  ---

  For multiple PVC's on a single interface, you must use subinterfaces, with each subinterface configured for each PVC. Each subinterface will then have its own IP address, and no IP address will be assigned to the main interface.

• Question 36:

  A network administrator is trying to add a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem?

  Router(config)# router ospf 1 Router(config-router)# network 10.0.0.0 255.0.0.0 area 0

  A. The process id is configured improperly.
  B. The OSPF area is configured improperly.
  C. The network wildcard mask is configured improperly.
  D. The network number is configured improperly.
  E. The AS is configured improperly.
  F. The network subnet mask is configured improperly.
  C. The network wildcard mask is configured improperly.

  ---

  When configuring OSPF, the mask used for the network statement is a wildcard mask similar to an access list. In this specific example, the correct syntax would have been "network 10.0.0.0 0.0.0.255 area 0."

• Question 37:

  Refer to the graphic.

  

  A static route to the 10.5.6.0/24 network is to be configured on the HFD router. Which commands will accomplish this? (Choose two.)

  A. HFD(config)# ip route 10.5.6.0 0.0.0.255 fa0/0
  B. HFD(config)# ip route 10.5.6.0 0.0.0.255 10.5.4.6
  C. HFD(config)# ip route 10.5.6.0 255.255.255.0 fa0/0
  D. HFD(config)# ip route 10.5.6.0 255.255.255.0 10.5.4.6
  E. HFD(config)# ip route 10.5.4.6 0.0.0.255 10.5.6.0
  F. HFD(config)# ip route 10.5.4.6 255.255.255.0 10.5.6.0
  C. HFD(config)# ip route 10.5.6.0 255.255.255.0 fa0/0
  D. HFD(config)# ip route 10.5.6.0 255.255.255.0 10.5.4.6

  ---

  The simple syntax of static route:

  ip route destination-network-address subnet-mask {next-hop-IP-address | exit-interface}

  +

  destination-network-address: destination network address of the remote network

  +

  subnet mask: subnet mask of the destination network

  +

  next-hop-IP-address: the IP address of the receiving interface on the next-hop router

  +

  exit-interface: the local interface of this router where the packets will go out In the statement "ip route 10.5.6.0 255.255.255.0 fa0/0:

  +

  10.5.6.0 255.255.255.0: the destination network +fa0/0: the exit-interface

• Question 38:

  What are two reasons that duplex mismatches can be difficult to diagnose? (Choose two.)

  A. The interface displays a connected (up/up) state even when the duplex settings are mismatched.
  B. The symptoms of a duplex mismatch may be intermittent.
  C. Autonegotiation is disabled.
  D. Full-duplex interfaces use CSMA/CD logic, so mismatches may be disguised by collisions.
  E. 1-Gbps interfaces are full-duplex by default.
  A. The interface displays a connected (up/up) state even when the duplex settings are mismatched.
  B. The symptoms of a duplex mismatch may be intermittent.

• Question 39:

  SIMULATION

  The following have already been configured on the router:

  The basic router configuration

  The appropriate interfaces have been configured for NAT inside and NAT outside.

  The appropriate static routes have also been configured (since the company will be a stub network, no routing protocol will be required)

  All passwords have been temporarily set to “cisco”.

  The task is to complete the NAT configuration using all IP addresses assigned by the ISP to provide Internet access for the hosts in the Weaver LAN. Functionality can be tested by clicking on the host provided for testing.

  Configuration information:

  router name – Weaver

  inside global addresses – 198.18.184.105 - 198.18.184.110/29

  inside local addresses - 192.168.100.17 – 192.168.100.30/28

  number of inside hosts – 14

  

  A network associate is configuring a router for the weaver company to provide internet access. The ISP has provided the company six public IP addresses of 198.18.184.105 198.18.184.110. The company has 14 hosts that need to access the internet simultaneously. The hosts in the company LAN have been assigned private space addresses in the range of 192.168.100.17 – 192.168.100.30.

  Correct Answer. Check the answer below
  Check the answer below

  ---

  The company has 14 hosts that need to access the internet simultaneously but we just have 6 public IP addresses from 198.18.184.105 to 198.18.184.110/29.

  Therefore we have to use NAT overload (or PAT)

  Double click on the Weaver router to open it

  Router>enable Router#configure terminal

  First you should change the router's name to Weaver

  Router(config)#hostname Weaver

  Create a NAT pool of global addresses to be allocated with their netmask.

  Weaver(config)#ip nat pool mypool 198.18.184.105 198.18.184.110 netmask 255.255.255.248

  Create a standard access control list that permits the addresses that are to be translated.

  Weaver(config)#access-list 1 permit 192.168.100.16 0.0.0.15

  Establish dynamic source translation, specifying the access list that was defined in the prior step.

  Weaver(config)#ip nat inside source list 1 pool mypool overload

  This command translates all source addresses that pass access list 1, which means a source address from 192.168.100.17 to 192.168.100.30, into an address from the pool named mypool (the pool contains addresses from 198.18.184.105

  to 198.18.184.110).

  Overload keyword allows to map multiple IP addresses to a single registered IP address (many-to-one) by using different ports.

  The question said that appropriate interfaces have been configured for NAT inside and NAT outside statements.

  This is how to configure the NAT inside and NAT outside, just for your understanding:

  Weaver(config)#interface fa0/0Weaver(config-if)#ip nat insideWeaver(config-if)#exitWeaver(config)#interface s0/0Weaver(config-if)#ip nat outsideWeaver(config-if)#end

  Finally, we should save all your work with the following command:

  Weaver#copy running-config startup-config

  Check your configuration by going to "Host for testing" and type:

  C :\>ping 192.0.2.114

  The ping should work well and you will be replied from 192.0.2.114

• Question 40:

  What OSPF command, when configured, will include all interfaces into area 0?

  A. network 0.0.0.0 255.255.255.255 area 0
  B. network 0.0.0.0 0.0.0.0 area 0
  C. network 255.255.255.255 0.0.0.0 area 0
  D. network all-interfaces area 0
  A. network 0.0.0.0 255.255.255.255 area 0

  ---

  Example 3-1 displays OSPF with a process ID of 1 and places all interfaces configured with an IP address in area 0. The network command network 0.0.0.0 255.255.255.255 area 0 dictates that you do not care (255.255.255.255) what the IP address is, but if an IP address is enabled on any interface, place it in area 0. Example 3-1 Configuring OSPF in a Single Area

  

  Reference: http://www.ciscopress.com/articles/article.asp?p=26919andseqNum=3