CCNA Lan Final Practice

50 Questions | Total Attempts: 411

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CCNA Lan Final Practice

CCNA LAN Switching and Wireless Final


Questions and Answers
  • 1. 
    What are three benefits of a hierarchical network model? (Choose three.)
    • A. 

      Reduced contention for bandwidth

    • B. 

      Reduced size of the physical layout

    • C. 

      Increased fault tolerance of the network

    • D. 

      Elimination of the need for layer three functionality

    • E. 

      Simplification of management and troubleshooting

  • 2. 
    In setting up a wireless infrastructure network, which device is used to associate a client computer to the network?
    • A. 

      An Ethernet switch

    • B. 

      A wireless access point

    • C. 

      Another wireless computer

    • D. 

      A hard-wired computer on the network

  • 3. 
    After listening for the presence of a signal on the network media, hosts A and C transmit data atthe same time. In what two ways do the hosts respond to this situation? (Choose two.)
    • A. 

      The hosts transmit a jam signal to ensure that all hosts on the network are aware that a collision has occurred.

    • B. 

      Because they are operating in full-duplex mode, the hosts resume listening for traffic in preparation for sending future messages.

    • C. 

      Because the hub will temporarily block traffic from one of the hosts, that host will be allowed to-transmit once the wire is clear.

    • D. 

      Hosts A and C are assigned shorter back off values to provide them priority to access the media for retransmission.

    • E. 

      After the back off period of a host, the host checks to determine if the line is idle before retransmitting.

  • 4. 
    Which three statements are correct concerning the default configuration of a new switch?(Choose three.)
    • A. 

      Spanning Tree Protocol is disabled.

    • B. 

      All switch ports are assigned to VLAN1.

    • C. 

      The flash directory contains the IOS image.

    • D. 

      VLAN1 is configured with a management IP address.

    • E. 

      All interfaces are set to auto-negotiation of speed and duplex.

  • 5. 
    Refer to the exhibit. Hosts A and B attempt to transmit a frame at the same time and a collisionoccurs. When will host D be able to transmit?
    • A. 

      Immediately

    • B. 

      After sending its jam signal

    • C. 

      After host A and host B have completed transmission

    • D. 

      After the jam signal clears and its backoff delay expires

  • 6. 
    Refer to the exhibit. Switches SW3 and SW4 are brand new switches with default configurations.The links between the switches are configured as trunk links and all VLANs are allowed on thetrunks. On the basis of the show running-config output that is provided, which VLANs will beavailable on SW3 and SW4?
    • A. 

      SW3-VLAN 10,20 SW4-VLAN 10,20

    • B. 

      SW3-VLAN 10,20,100 SW4-VLAN 10,20,100

    • C. 

      SW3-VLAN 10,20,100 SW4-VLAN 10,20,40,50,100

    • D. 

      SW3-VLAN 10,20,40,50,100 SW4-VLAN 10,20,40,50,100

  • 7. 
    Refer to the exhibit. The network administrator wants to configure Switch1 to allow SSH connections and prohibit Telnet connections. How should the network administrator change the displayed configuration to satisfy the requirement?
    • A. 

      Use SSH version 1.

    • B. 

      Reconfigure the RSA key.

    • C. 

      Configure SSH on a different line.

    • D. 

      Modify the transport input command.

  • 8. 
    A network administrator needs to save the configuration file currently in RAM to NVRAM before rebooting the switch. Which command should the administrator issue?
    • A. 

      Switch1# copy startup-config flash:filename

    • B. 

      Switch1# copy running-config startup-config

    • C. 

      Switch1# copy startup-config running-config

    • D. 

      Switch1# copy flash:config.txt running-config

  • 9. 
    Which statement regarding the service password-encryption command is true?
    • A. 

      The service password-encryption command is entered at the privileged EXEC mode prompt.

    • B. 

      The service password-encryption command encrypts only passwords for the console and VTY ports.

    • C. 

      The service password-encryption command encrypts all previously unencrypted passwords in the running configuration.

    • D. 

      To see the passwords encrypted by the service password-encryption command, enter the no service password-encryption command.

  • 10. 
    Refer to the exhibit. Which password allows the administrator to enter the privileged exec mode?
    • A. 

      Cisco1

    • B. 

      Cisco2

    • C. 

      Cisco3

    • D. 

      Cisco

  • 11. 
    Refer to the exhibit. A network engineer is attempting to connect to a switch to perform the initial configuration. The engineer connects a known good crossover cable with an RJ-45 to DB-9 adapter from the serial port of a computer to the console port of the switch. The engineer configures Hyper-Terminal for a data rate of 9600 bits per second, 8 data bits, no parity, 1 stopbit, and no flow control, but is unable to get a switch prompt. What will fix the problem?
    • A. 

      Change the flow control to hardware.

    • B. 

      Replace the cable with a rollover cable.

    • C. 

      Alter the data rate to 115,200 bits per second.

    • D. 

      Move the cable from the console port to an Ethernet port and use Telnet.

  • 12. 
    What happens when the crypto key zeroize rsa command is entered on a switch configured withthe transport input ssh command on the vty lines?
    • A. 

      A new RSA key pair is created.

    • B. 

      The switch defaults to allowing Telnet connections only.

    • C. 

      The switch is no longer able to make SSH connections as an SSH client.

    • D. 

      The switch allows remote connections only after a new RSA key pair is generated.

  • 13. 
    Refer to the exhibit. The network administrator enters the configuration shown to allow both SSH and Telnet connections to the switch. The Telnet connections fail. What is the most likely cause of this problem?
    • A. 

      The SSH version number is wrong.

    • B. 

      SSH has been configured on the wrong line.

    • C. 

      Telnet and SSH cannot be configured simultaneously.

    • D. 

      The transport input command is configured incorrectly.

  • 14. 
    Refer to the exhibit. Switch1 is configured for VTP as shown. An administrator connects four switches to Switch1 and configures trunk links between them. Which of the four switches will successfully receive and install VTP updates from Switch1?
    • A. 

      Show VTP Status VTP Version: 2 Configuration Revision: 0 VTP Operating Mode: client VTP Domain Name: cisco1 VTP V2 Mode: enabled

    • B. 

      Show VTP Status VTP Version: 2 Configuration Revision: 0 VTP Operating Mode: client VTP Domain Name: cisco03 VTP V2 Mode: enabled

    • C. 

      Show VTP Status VTP Version: 2 Configuration Revision: 25 VTP Operating Mode: client VTP Domain Name: cisco1 VTP V2 Mode: enabled

    • D. 

      Show VTP Status VTP Version: 2 Configuration Revision: 0 VTP Operating Mode: Server VTP Domain Name: cisco1 VTP V2 Mode: enabled

  • 15. 
    What is the correct order in which the STP components are chosen?
    • A. 

      Designated ports, non designated ports, root bridge, root ports

    • B. 

      Non designated ports, designated ports, root ports, root bridge

    • C. 

      Root bridge, root ports, designated ports, non designated ports

    • D. 

      Root ports, root bridge, non designated ports, designated ports

  • 16. 
    How does Spanning Tree Protocol aid network architecture?
    • A. 

      Allows for redundant links by eliminating loops

    • B. 

      Provides greater scalability by eliminating collisions

    • C. 

      Reduces switch processor load by reducing broadcast traffic on trunk links

    • D. 

      Reduces administrative overhead by sharing VLAN databases between switches across the network

  • 17. 
    How are data frames identified and sent to the correct VLAN when exiting an Ethernet trunk?
    • A. 

      Frames are forwarded to the correct VLAN based on the VLAN tag.

    • B. 

      Frames are always forwarded to the native VLAN when exiting a trunk.

    • C. 

      Frames are forwarded to the correct VLAN based on the source IP address.

    • D. 

      Frames are forwarded to the correct VLAN based on information in the MAC address table.

  • 18. 
    Refer to the exhibit. VLAN 20 was recently added on the network. Users on VLAN 20 on SW1start complaining that they do not have connectivity to the users on the same VLAN on switchSW2. What should be done to remedy the problem?
    • A. 

      Configure the trunk port in a desirable mode on SW2.

    • B. 

      Include VLAN 20 in the list of allowed VLANs on the trunk link on SW2.

    • C. 

      Configure VLAN 1 to be the native VLAN for both networks on SW1 and SW2.

    • D. 

      Remove VLAN 20 from the allowed VLANs on the trunk link on SW2, an action that will enableall VLANs on the trunk link.

  • 19. 
    Refer to the exhibit. All switches are configured with the default bridge priority. Which port will act as a non-designated port if all links are operating at the same bandwidth?
    • A. 

      Fa0/1 interface of switch A

    • B. 

      Fa0/2 interface of switch A

    • C. 

      Fa0/1 interface of switch B

    • D. 

      Fa0/2 interface of switch B

    • E. 

      Fa0/1 interface of switch C

  • 20. 
    Refer to the exhibit. SW1 is a 2960 switch with default values assigned. Which two statements are true about what the cost value of 38 represents for SW1? (Choose two.)
    • A. 

      SW1 connects via two Fast-Ethernet links to reach the root switch.

    • B. 

      The cost represents the numeric value for the fastest path from SW1 to the root switch.

    • C. 

      A cost of 38 is the value that is being advertised out port 26 on the upstream switch, which is closer to the root switch.

    • D. 

      The root switch is advertising a cost of 38, which is lower than any other switch that participates in the VLAN0001 spanning-tree domain.

    • E. 

      SW1 connects via a Fast-Ethernet link to an upstream switch that in turn is directly connected to the root switch via a Gigabit Ethernet link.

  • 21. 
    • A. 

      Cat-A

    • B. 

      Cat-B

    • C. 

      Cat-C

    • D. 

      Cat-D

  • 22. 
    Which two statements describe Spanning Tree Protocol? (Choose two.)
    • A. 

      It is only used at Layer 2.

    • B. 

      It is configured on routers.

    • C. 

      It eliminates Layer 2 loops in network topologies.

    • D. 

      It limits the number of valid MAC addresses allowed on a port.

    • E. 

      It allows VLAN information to propagate to other switches in the network.

  • 23. 
    Refer to the exhibit. RTB is configured for traditional inter-VLAN routing. RTB can ping computer Abut cannot ping computer B. What is a possible cause of this failure?
    • A. 

      Port Fa0/11 is in the wrong VLAN.

    • B. 

      RTB does not have an active routing protocol.

    • C. 

      The IP address of computer B is in the wrong logical network.

    • D. 

      Router interface Fa0/1 has the wrong trunk encapsulation type configured.

  • 24. 
    Refer to the exhibit. Computer A sends a broadcast message. Which devices will see the broadcast?
    • A. 

      Computer B

    • B. 

      Computer B and Router1

    • C. 

      Computer C and Router1

    • D. 

      Computer B, computer C, computer D, computer E and Router1

    • E. 

      Computer A, computer B, computer C, computer D, computer E and Router1

  • 25. 
    • A. 

      The switch ports are on different VLANs.

    • B. 

      The switch IP address is on the wrong subnet.

    • C. 

      The hosts are configured on different logical networks.

    • D. 

      A router is required to forward traffic between Host1 and Host2.

    • E. 

      The host default gateway addresses must be on the same logical network.

  • 26. 
    • A. 

      172.16.10.68 /27

    • B. 

      172.16.10.99 /28

    • C. 

      172.16.10.110 /27

    • D. 

      172.16.30.120 /28

    • E. 

      172.16.30.146 /27

  • 27. 
    • A. 

      It is sending and receiving data frames.

    • B. 

      It is receiving BPDUs, but not sending data frames.

    • C. 

      It is participating in the election process by forwarding the BPDUs it receives.

    • D. 

      It is receiving BPDUs and populating the MAC address table, but not sending data.

  • 28. 
    • A. 

      QoS

    • B. 

      Routing

    • C. 

      Trunking

    • D. 

      VoIP

    • E. 

      Subinterfaces

  • 29. 
    • A. 

      No routing protocol is configured on R1.

    • B. 

      The Fa0/1 port of S1 is not a trunk port.

    • C. 

      The default gateway address is not set on S1.

    • D. 

      Only one physical link between S1 and R1 is configured for inter-VLAN routing.

  • 30. 
    • A. 

      A new VLAN can be added to Switch1 and that information will be added only to Switch2.

    • B. 

      A new VLAN can be added to Switch1 and that information will be added to Switch2 andSwitch4.

    • C. 

      An existing VLAN can be deleted from Switch4 and that VLAN will be deleted from Switch1and Switch2.

    • D. 

      A new VLAN can be added to Switch4 and that information will be added to Switch1, Switch2,and Switch3.

    • E. 

      A new VLAN can be added to Switch3 and that information will be added to Switch1, Switch2,and Switch4.

  • 31. 
    After unpacking a new Linksys WRT300N wireless multifunction device, a user needs to change the default administrator password and make other configuration changes. What must the user do to access the device in order to make these changes?
    • A. 

      Use a wireless client to associate with the WRT300N and then open a Hyper-Terminal session with the device.

    • B. 

      Establish a wired connection with the device and then reboot the attached computer to launch the configuration software.

    • C. 

      Establish a wired connection from a computer in the same IP subnet as the WRT300N and enter the default IP address of the device into a web browser on the computer.

    • D. 

      Modify the TCP/IP properties of the computer that is connected to the WRT300N so that the computer and the WRT300N exist on the same network. Then reboot the computer to establish a connection.

  • 32. 
    Which type of frame contains information that is used in the election of the spanning tree root bridge?
    • A. 

      BID

    • B. 

      LSA

    • C. 

      LSU

    • D. 

      BPDU

  • 33. 
    • A. 

      Data from VLAN 20 is not being routed.

    • B. 

      Incoming traffic with VLAN ID 1 is processed by interface Fa0/0.

    • C. 

      Incoming traffic that has a VLAN ID of 10 is processed by subinterface Fa0/0.1.

    • D. 

      The router uses a unique MAC address on VLAN 10 and 20 by adding the 802.1Q VLAN ID to the hardware address.

    • E. 

      Traffic inbound on this router is processed by different subinterfaces depending on the VLAN from which the traffic originated.

  • 34. 
    What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value?
    • A. 

      All VLANs will be allowed across the trunk.

    • B. 

      Only VLAN 1 will be allowed across the trunk.

    • C. 

      Only the native VLAN will be allowed across the trunk.

    • D. 

      The switches will negotiate via VTP which VLANs to allow across the trunk.

  • 35. 
    Refer to the exhibit. Which two options correctly describe the router configuration that is shown? (Choose two.)
    • A. 

      Routing between the 192.168.1.0 and 192.168.3.0 networks will not succeed until a routing protocol is configured on the router.

    • B. 

      VLANs have not been appropriately configured on the router subinterfaces.

    • C. 

      The configuration is appropriate for a router-on-a-stick network design.

    • D. 

      Trunking has been appropriately configured on the router subinterfaces.

    • E. 

      An IP address should be applied to interface Fa0/1 for routing to occur.

  • 36. 
    • A. 

      Include a router in the topology.

    • B. 

      Associate hosts A and B with VLAN 10 instead of VLAN 1.

    • C. 

      Remove the native VLAN from the trunk.

    • D. 

      Configure one trunk port in the dynamic desirable mode.

    • E. 

      Add the switchport nonegotiate command to the configuration of S2.

  • 37. 
    • A. 

      Set the Fa0/1 interface on Switch2 to trunk mode.

    • B. 

      Change the trunk encapsulation on Switch2 Fa0/1 to dot1q.

    • C. 

      Change the native VLAN on Switch2 interface Fa0/1 to VLAN 100.

    • D. 

      Change the access mode VLAN on Switch2 to the default VLAN 1.

  • 38. 
     
    • A. 

      Reconfigure switches SW2 and SW3 in VTP transparent mode.

    • B. 

      Reconfigure the VTP password to be consistent on all VTP switches.

    • C. 

      Reconfigure all switches as VTP clients to synchronize the VLAN database information.

    • D. 

      Reconfigure the VTP server as a VTP client and then return to VTP server mode to reset the configuration revision number.

  • 39. 
    • A. 

      Configure port Fa0/2 on switch 101-3FL as a static trunk link.

    • B. 

      Introduce a Layer 3 device or a switch with Layer 3 capability into the topology.

    • C. 

      Utilize the switchport trunk allowed vlan all command on switch 101-3FL to permit the VLAN traffic.

    • D. 

      Apply IP addresses that are in the same subnet to the interfaces that are used to connect switches101-2FL and 101-3FL.

  • 40. 
     A new switch is to be added to an existing network in a remote office. The network administrator does not want the technicians in the remote office to be able to add new VLANs to the switch, but the switch should receive VLAN updates from the VTP domain. Which two steps must be performed to configure VTP on the new switch to meet these conditions? (Choose two.)
    • A. 

      Configure an IP address on the new switch.

    • B. 

      Configure the existing VTP domain name on the new switch.

    • C. 

      Configure all ports of both switches to access mode.

    • D. 

      Configure the new switch as a VTP client.

    • E. 

      Enable VTP pruning.

  • 41. 
    • A. 

      This switch shows no configuration revision errors.

    • B. 

      This switch has established two-way communication with the neighboring devices.

    • C. 

      This switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain.

    • D. 

      This switch will drop all VTP advertisements that come from the switches that are configured in the same VTP domain.

    • E. 

      This switch will cause no disruption in the VTP domain operations if the rest of the switches in the same VTP domain have a higher configuration revision number.

  • 42. 
    A switch that is using port-based memory buffering receives two incoming frames on the same port. The destination port for the first frame that is received is busy. How will the switch handle the second frame that it received?
    • A. 

      The second frame will have to wait to be delivered even if its destination port is available.

    • B. 

      The second frame will be delivered to the memory buffer for its destination port.

    • C. 

      The second frame will be placed in a common memory buffer to await delivery.

    • D. 

      The second frame will be dropped.

  • 43. 
    • A. 

      All the users who are connected only to SW2

    • B. 

      Users on VLAN 10 who are connected only to SW3

    • C. 

      Users on VLAN 10 who are connected only to SW4

    • D. 

      Users on VLAN 10 who are connected to both SW3 and SW4

  • 44. 
     Which benefit is gained by designing a network with a small network diameter?
    • A. 

      Lower latency

    • B. 

      Improved security

    • C. 

      Increased redundancy

    • D. 

      Higher interface bandwidth

  • 45. 
    • A. 

      The router supports encryption and authentication.

    • B. 

      The router supports both wired and wireless connections.

    • C. 

      The router supports 802.11b, 802.11g, and 802.11n devices.

    • D. 

      The router supports connectivity through infrared and radio frequencies.

  • 46. 
    • A. 

      Assign different SSIDs to each AP.

    • B. 

      Reconfigure all APs to the same channel.

    • C. 

      Use the same BSSID address for each AP.

    • D. 

      Reposition the APs so that each area of signal strength overlaps the neighbor by at least10-15%.

  • 47. 
     Which device must be installed in each computer to allow a wireless connection to be established?
    • A. 

      DSL modem

    • B. 

      Wireless NIC

    • C. 

      Wireless router

    • D. 

      Wireless access point

  • 48. 
    Which parameter is a specific frequency at which a wireless access point will operate?
    • A. 

      BSS

    • B. 

      WEP

    • C. 

      SSID

    • D. 

      Ad hoc

    • E. 

      Channel

  • 49. 
     Which parameter is associated with wireless authentication?
    • A. 

      Shared key

    • B. 

      SSID

    • C. 

      Ad hoc

    • D. 

      Channel

  • 50. 
    • A. 

      Only one VLAN is currently configured to use the trunk links.

    • B. 

      The switch negotiated trunk links for interfaces Fa0/1 and Gi0/1.

    • C. 

      A Cisco proprietary protocol is in use for interfaces Fa0/1 and Gi0/1.

    • D. 

      Interfaces Gi0/1 and Fa0/1 are allowed to carry data from multiple VLANs.