Cisco 200-120 Online Practice Questions and Exam Preparation

Cisco 200-120 Online Questions & Answers

• Question 351:

  Refer to the exhibit.

  

  HostA cannot ping HostB. Assuming routing is properly configured, what is the cause of this problem?

  A. HostA is not on the same subnet as its default gateway.
  B. The address of SwitchA is a subnet address.
  C. The Fa0/0 interface on RouterA is on a subnet that can't be used.
  D. The serial interfaces of the routers are not on the same subnet.
  E. The Fa0/0 interface on RouterB is using a broadcast address.
  D. The serial interfaces of the routers are not on the same subnet.

  ---

  Now let's find out the range of the networks on serial link: For the network 192.168.1.62/27: Increment: 32 Network address: 192.168.1.32 Broadcast address: 192.168.1.63 For the network 192.168.1.65/27: Increment: 32 Network address: 192.168.1.64 Broadcast address: 192.168.1.95 -> These two IP addresses don't belong to the same network and they can't see each other.

• Question 352:

  The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command?

  A. This command should be executed from the global configuration mode.
  B. The IP address 10.121.16.8 is the local router port used to forward data.
  C. 102 is the remote DLCI that will receive the information.
  D. This command is required for all Frame Relay configurations.
  E. The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC.
  E. The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC.

  ---

  Broadcast is added to the configurations of the frame relay, so the PVC supports broadcast, allowing the routing protocol updates that use the broadcast update mechanism to be forwarded across itself.

• Question 353:

  Refer to the exhibit.

  

  Switch port FastEthernet 0/24 on ALSwitch1 will be used to create an IEEE 802.1Q-compliant trunk to another switch. Based on the output shown, what is the reason the trunk does not form, even though the proper cabling has been attached?

  A. VLANs have not been created yet.
  B. An IP address must be configured for the port.
  C. The port is currently configured for access mode.
  D. The correct encapsulation type has not been configured.
  E. The "no shutdown" command has not been entered for the port.
  C. The port is currently configured for access mode.

  ---

  According to the output shown the switchport (layer 2 Switching) is enabled and the port is in access mode. To make a trunk link the port should configured as a trunk port, not an access port, by using the following command: (Config-if) #switchport mode trunk.

• Question 354:

  Refer to the exhibit.

  

  Given this output for SwitchC, what should the network administrator's next action be?

  A. Check the trunk encapsulation mode for SwitchC's fa0/1 port.
  B. Check the duplex mode for SwitchC's fa0/1 port.
  C. Check the duplex mode for SwitchA's fa0/2 port.
  D. Check the trunk encapsulation mode for SwitchA's fa0/2 port.
  C. Check the duplex mode for SwitchA's fa0/2 port.

  ---

  Here we can see that this port is configured for full duplex, so the next step would be to check the duplex setting of the port on the other switch. A mismatched trunk encapsulation would not result in input errors and CRC errors.

• Question 355:

  Refer to the exhibit.

  

  The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.)

  A. Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.
  B. Ensure that cables A and B are straight-through cables.
  C. Ensure cable A is plugged into a trunk port.
  D. Ensure the switch has power.
  E. Reboot all of the devices.
  F. Reseat all cables.
  B. Ensure that cables A and B are straight-through cables.
  D. Ensure the switch has power.
  F. Reseat all cables.

  ---

  The ports on the switch are not up indicating it is a layer 1 (physical) problem so we should check cable type, power and how they are plugged in.

• Question 356:

  Which statement is correct regarding the operation of DHCP?

  A. A DHCP client uses a ping to detect address conflicts.
  B. A DHCP server uses a gratuitous ARP to detect DHCP clients.
  C. A DHCP client uses a gratuitous ARP to detect a DHCP server.
  D. If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.
  E. If an address conflict is detected, the address is removed from the pool for an amount of time configurable by the administrator.
  F. If an address conflict is detected, the address is removed from the pool and will not be reused until the server is rebooted.
  D. If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.

  ---

  An address conflict occurs when two hosts use the same IP address. During address assignment, DHCP checks for conflicts using ping and gratuitous ARP. If a conflict is detected, the address is removed from the pool. The address will not

  be assigned until the administrator resolves the conflict.

  (Reference: http://www.cisco.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp.html)

• Question 357:

  Which two features can dynamically assign IPv6 addresses? (Choose two.)

  A. IPv6 stateless autoconfiguration
  B. DHCP
  C. NHRP
  D. IPv6 stateful autoconfiguration
  E. ISATAP tunneling
  A. IPv6 stateless autoconfiguration
  B. DHCP

• Question 358:

  Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. An 802.1Q trunk is configured between the two switches. On CAT1, VLAN 10 is chosen as native, but on CAT2 the native VLAN is not specified. What will happen in this scenario?

  A. 802.1Q giants frames could saturate the link.
  B. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames.
  C. A native VLAN mismatch error message will appear.
  D. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames.
  C. A native VLAN mismatch error message will appear.

  ---

  A "native VLAN mismatch" error will appear by CDP if there is a native VLAN mismatch on an 802.1Q link. "VLAN mismatch" can cause traffic from one vlan to leak into another vlan.

• Question 359:

  Refer to the exhibit.

  

  In the Frame Relay network, which IP addresses would be assigned to the interfaces with point-to-point PVCs?

  A. DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.10.1 /24 DLCI 99: 192.168.10.2 /24 DLCI 28: 192.168.10.3 /24
  B. DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.11.1 /24 DLCI 99: 192.168.12.1 /24 DLCI 28: 192.168.13.1 /24
  C. DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.11.1 /24 DLCI 99: 192.168.10.2 /24 DLCI 28: 192.168.11.2 /24
  D. DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.10.2 /24 DLCI 99: 192.168.10.3 /24 DLCI 28: 192.168.10.4 /24
  C. DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.11.1 /24 DLCI 99: 192.168.10.2 /24 DLCI 28: 192.168.11.2 /24

  ---

  With point to point PVC's, each connection needs to be in a separate subnet. The R2-R1 connection (DLCI 16 to 99) would have each router within the same subnet. Similarly, the R3-R1 connection would also be in the same subnet, but it must be in a different one than the R2-R1 connection.

• Question 360:

  Refer to the exhibit.

  

  The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems? (Choose two.)

  A. Configure the gateway on Host A as 10.1.1.1.
  B. Configure the gateway on Host B as 10.1.2.254.
  C. Configure the IP address of Host A as 10.1.2.2.
  D. Configure the IP address of Host B as 10.1.2.2.
  E. Configure the masks on both hosts to be 255.255.255.224.
  F. Configure the masks on both hosts to be 255.255.255.240.
  B. Configure the gateway on Host B as 10.1.2.254.
  D. Configure the IP address of Host B as 10.1.2.2.

  ---

  The switch 1 is configured with two VLANs: VLAN1 and VLAN2. The IP information of member Host A in VLAN1 is as follows: Address : 10.1.1.126 Mask : 255.255.255.0 Gateway : 10.1.1.254 The IP information of member Host B in VLAN2 is as follows: Address : 10.1.1.12 Mask : 255.255.255.0 Gateway : 10.1.1.254 The configuration of sub-interface on router 2 is as follows: Fa0/0.1 -- 10.1.1.254/24 VLAN1 Fa0/0.2 -- 10.1.2.254/24 VLAN2 It is obvious that the configurations of the gateways of members in VLAN2 and the associated network segments are wrong. The layer3 addressing information of Host B should be modified as follows: Address : 10.1.2.X Mask : 255.255.255.0