CCNA Lan Final Practice

50 Questions | Total Attempts: 414

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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.