Cisco 200-120 Online Practice Questions and Exam Preparation

Cisco 200-120 Online Questions & Answers

• Question 81:

  Which technology allows a large number of private IP addresses to be represented by a smaller number of public IP addresses?

  A. NAT
  B. NTP
  C. RFC 1631
  D. RFC 1918
  A. NAT

• Question 82:

  Refer to the exhibit.

  

  How should the FastEthernet0/1 ports on the switches that are shown in the exhibit be configured to allow connectivity between all devices?

  A. The ports only need to be connected by a crossover cable.
  B. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk
  C. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode access SwitchX(config-if)# switchport access vlan 1
  D. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk SwitchX(config-if)# switchport trunk vlan 1 SwitchX(config-if)# switchport trunk vlan 10 SwitchX(config-if)# switchport trunk vlan 20
  B. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk

  ---

  IN order for multiple VLANs to cross switches, the connection between the switches must be a trunk. The "switchport mode trunk" command is all that is needed, the individual VLANs should not be listed over that trunk interface.

• Question 83:

  Refer to the exhibit.

  

  If the devices produced the given output, what is the cause of the EtherChannel problem?

  A. SW1's Fa0/1 interface is administratively shut down.
  B. There is an encapsulation mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.
  C. There is an MTU mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.
  D. There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.
  D. There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.

  ---

  You must configure all interfaces in an EtherChannel to operate at the same speeds and duplex modes. Based on the output shown, SW1 is configured to run at 10Mb while SW2 is operating at 100 Mb.

• Question 84:

  Refer to the exhibit.

  

  What is the most appropriate summarization for these routes?

  A. 10.0.0.0 /21
  B. 10.0.0.0 /22
  C. 10.0.0.0 /23
  D. 10.0.0.0 /24
  B. 10.0.0.0 /22

  ---

  The 10.0.0.0/22 subnet mask will include the 10.0.0.0, 10.0.1.0, 10.0.2.0, and 10.0.3.0 networks, and only those four networks.

• Question 85:

  Refer to the exhibit.

  

  For what two reasons has the router loaded its IOS image from the location that is shown? (Choose two.)

  A. Router1 has specific boot system commands that instruct it to load IOS from a TFTP server.
  B. Router1 is acting as a TFTP server for other routers.
  C. Router1 cannot locate a valid IOS image in flash memory.
  D. Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP server.
  E. Cisco routers will first attempt to load an image from TFTP for management purposes.
  A. Router1 has specific boot system commands that instruct it to load IOS from a TFTP server.
  C. Router1 cannot locate a valid IOS image in flash memory.

  ---

  The loading sequence of CISCO IOS is as follows: Booting up the router and locating the Cisco IOS

  1.

  POST (power on self-test)

  2.

  Bootstrap code executed

  3.

  Check Configuration Register value (NVRAM) which can be modified using the config-register command

  0 = ROM Monitor mode 1 = ROM IOS 2 - 15 = startup-config in NVRAM

  4.

  Startup-config filE. Check for boot system commands (NVRAM) If boot system commands in startup-config

  a.

  Run boot system commands in order they appear in startup-config to locate the IOS

  b.

  [If boot system commands fail, use default fallback sequence to locate the IOS (Flash, TFTP, ROM)?] If no boot system commands in startup-config use the default fallback sequence in locating the IOS:

  a.

  Flash (sequential)

  b.

  TFTP server (netboot)

  c.

  ROM (partial IOS) or keep retrying TFTP depending upon router model

  5. If IOS is loaded, but there is no startup-config file, the router will use the default fallback sequence for locating the IOS and then it will enter setup mode or the setup dialogue.

• Question 86:

  Which statement describes the process ID that is used to run OSPF on a router?

  A. It is globally significant and is used to represent the AS number.
  B. It is locally significant and is used to identify an instance of the OSPF database.
  C. It is globally significant and is used to identify OSPF stub areas.
  D. It is locally significant and must be the same throughout an area.
  B. It is locally significant and is used to identify an instance of the OSPF database.

  ---

  The Process ID for OSPF on a router is only locally significant and you can use the same number on each router, or each router can have a different number-it just doesn't matter. The numbers you can use are from 1 to 65,535. Don't get this confused with area numbers, which can be from 0 to 4.2 billion.

• Question 87:

  SIMULATION A network associate is adding security to the configuration of the Corp1 router. The user on host C should be able to use a web browser to access financial information from the Finance Web Server. No other hosts from the LAN nor the Core should be able to use a web browser to access this server. Since there are multiple resources for the corporation at this location including other resources on the Finance Web Server, all other traffic should be allowed. The task is to create and apply an access-list with no more than three statements that will allow ONLY host C web access to the Finance Web Server. No other hosts will have web access to the Finance Web Server. All other traffic is permitted. Access to the router CLI can be gained by clicking on the appropriate host. All passwords have been temporarily set to "cisco". The Core connection uses an IP address of 198.18.196.65. The computers in the Hosts LAN have been assigned addresses of 192.168.33.1 - 192.168.33.254 host A 192.168.33.1 host B 192.168.33.2 host C 192.168.33.3 host D 192.168.33.4 The servers in the Server LAN have been assigned addresses of 172.22.242.17 - 172.22.242.30. The Finance Web Server is assigned an IP address of 172.22.242.23.

  

  Correct Answer. Check the answer below
  Check the answer below

  ---

  Select the console on Corp1 router

  Configuring ACL

  Corp1>enable

  Corp1#configure terminal

  comment: To permit only Host C (192.168.33.3){source addr} to access finance server address (172.22.242.23) {destination addr} on port number 80 (web)

  Corp1(config)#access-list 100 permit tcp host 192.168.33.3 host 172.22.242.23 eq 80

  comment: To deny any source to access finance server address (172.22.242.23) {destination addr} on port number 80 (web)

  Corp1(config)#access-list 100 deny tcp any host 172.22.242.23 eq 80

  comment: To permit ip protocol from any source to access any destination because of the implicit deny any any statement at the end of ACL.

  Corp1(config)#access-list 100 permit ip any any

  Applying the ACL on the Interface

  comment: Check show ip interface brief command to identify the interface type and number by checking the IP address configured.

  Corp1(config)#interface fa 0/1

  If the ip address configured already is incorrect as well as the subnet mask. This should be corrected in order ACL to work type this commands at interface mode :

  no ip address 192.x.x.x 255.x.x.x (removes incorrect configured ipaddress and subnet mask)

  Configure Correct IP Address and subnet mask:

  ip address 172.22.242.30 255.255.255.240 ( range of address specified going to server is given as 172.22.242.17 - 172.22.242.30 )

  Comment: Place the ACL to check for packets going outside the interface towards the finance web server.

  Corp1(config-if)#ip access-group 100 out

  Corp1(config-if)#end

  Important: To save your running config to startup before exit.

  Corp1#copy running-config startup-config

  Verifying the Configuration:

  Step1: show ip interface brief command identifies the interface on which to apply access list.

  Step2: Click on each host A, B, C, and D. Host opens a web browser page, Select address box of the web browser and type the ip address of finance web server (172.22.242.23) to test whether it permits /deny access to the finance web Server.

  Step 3: Only Host C (192.168.33.3) has access to the server. If the other host can also access then maybe something went wrong in your configuration. Check whether you configured correctly and in order.

  Step 4: If only Host C (192.168.33.3) can access the Finance Web Server you can click on NEXT button to successfully submit the ACL SIM.

• Question 88:

  Refer to the exhibit.

  

  What is the cause of the Syslog output messages?

  A. The EIGRP neighbor on Fa0/1 went down due to a failed link.
  B. The EIGRP neighbor connected to Fa0/1 is participating in a different EIGRP process, causing the adjacency to go down.
  C. A shut command was executed on interface Fa0/1, causing the EIGRP adjacency to go down.
  D. Interface Fa0/1 has become error disabled, causing the EIGRP adjacency to go down.
  C. A shut command was executed on interface Fa0/1, causing the EIGRP adjacency to go down.

  ---

  The first lines of the message show that a configuration change was made, and that the fa0/1 interface changed to a state of administratively down. This can only be done by issuing the shutdown command. The last line indicates that this caused an EIGRP neighbor adjacency to go down.

• Question 89:

  Which protocol advertises a virtual IP address to facilitate transparent failover of a Cisco routing device?

  A. FHRP
  B. DHCP
  C. RSMLT
  D. ESRP
  A. FHRP

• Question 90:

  DRAG DROP

  Refer to the exhibit. Complete this network diagram by dragging the correct device name or description to the correct location. Not all the names or descriptions will be used.

  Select and Place: