The Candid Test On CCNA 3 Chapter 3

21 Questions | Total Attempts: 301

SettingsSettingsSettings
Chapters Of CCNA Quizzes & Trivia

If you are having a tough time understanding what we have covered CCNA 3 chapter 3 then all you need is a candid test to help refresh your memory before we move on to the next chapter. Give it a try and see if you might need some extra studying hours.


Questions and Answers
  • 1. 
    1. What statement about the 802.1q trunking protocol is true?
    • A. 

      802.1q is Cisco proprietary.

    • B. 

      802.1q frames are mapped to VLANs by MAC address.

    • C. 

      802.1q does NOT require the FCS of the original frame to be recalculated.

    • D. 

      802.1q will not perform operations on frames that are forwarded out access ports.

  • 2. 
    2. Which two statements describe the benefits of VLANs? (Choose two.)
    • A. 

      VLANs improve network performance by regulating flow control and window size.

    • B. 

      VLANs enable switches to route packets to remote networks via VLAN ID filtering.

    • C. 

      VLANs reduce network cost by reducing the number of physical ports required on switches.

    • D. 

      VLANs improve network security by isolating users that have access to sensitive data and applications.

    • E. 

      VLANs divide a network into smaller logical networks, resulting in lower susceptibility to broadcast storms.

  • 3. 
    3. What are two characteristics of VLAN1 in a default switch configuration?(Choose two.)
    • A. 

      VLAN1 should renamed.

    • B. 

      VLAN 1 is the management VLAN

    • C. 

      All switch ports are members of VLAN1.

    • D. 

      Only switch port 0/1 is assigned to VLAN1.

    • E. 

      Links between switches must be members of VLAN1.

  • 4. 
    4. Refer to the exhibit. SW1 and SW2 are new switches being installed in thetopology shown in the exhibit. Interface Fa0/1 on switch SW1 has been configuredwith trunk mode “on”. Which statement is true about forming a trunk link betweenthe switches SW1 and SW2?
    • A. 

      Interface Fa0/2 on switch SW2 will negotiate to become a trunk link if it supports DTP.

    • B. 

      Interface Fa0/2 on switch SW2 can only become a trunk link if statically configured as a trunk.

    • C. 

      Interface Fa0/1 converts the neighboring link on the adjacent switch into a trunk link if the neighboring interface is configured in nonegotiate mode

    • D. 

      Interface Fa0/1 converts the neighboring link on the adjacent switch into a trunk link automatically with no consideration of the configuration on the neighboring interface

  • 5. 
     Which two statements about the 802.1q trunking protocol are true? (Choosetwo.)
    • A. 

      802.1q is Cisco proprietary.

    • B. 

      802.1q frames are mapped to VLANs by MAC address

    • C. 

      If 802.1q is used on a frame, the FCS must be recalculated.

    • D. 

      802.1q will not perform operations on frames that are forwarded out access ports.

    • E. 

      802.1q allows the encapsulation of the original frame to identify the VLAN from which a frame originated.

  • 6. 
     What switch port modes will allow a switch to successfully form a trunking linkif the neighboring switch port is in "dynamic desirable" mode?
    • A. 

      Dynamic desirable mode

    • B. 

      On or dynamic desirable mode

    • C. 

      On, auto, or dynamic desirable mode

    • D. 

      On, auto, dynamic desirable, or nonegotiate mode

  • 7. 
    Refer to the exhibit. Company HR is adding PC4, a specialized applicationworkstation, to a new company office. The company will add a switch, S3, connectedvia a trunk link to S2, another switch. For security reasons the new PC will reside inthe HR VLAN, VLAN 10. The new office will use the 172.17.11.0/24 subnet. Afterinstallation, the existing PCs are unable to access shares on PC4. What is the likelycause?
    • A. 

      The switch to switch connection must be configured as an access port to permit access to VLAN 10 on S3

    • B. 

      The new PC is on a different subnet so Fa0/2 on S3 must be configured as a trunk port.

    • C. 

      PC4 must use the same subnet as the other HR VLAN PCs.

    • D. 

      A single VLAN cannot span multiple switches.

  • 8. 
    What must the network administrator do to remove Fast Ethernet port fa0/1from VLAN 2 and assign it to VLAN 3?
    • A. 

      Enter the no vlan 2 and the vlan 3 commands in global configuration mode.

    • B. 

      Enter the switchport access vlan 3 command in interface configuration mode.

    • C. 

      Enter the switchport access vlan 3 command in interface configuration mode. Enter the switchport trunk native vlan 3 command in interface configuration mode.

    • D. 

      Enter the no shutdown in interface configuration mode to return it to the default configuration and then configure the port for VLAN 3.

  • 9. 
    What is a valid consideration for planning VLAN traffic across multiple switches?
    • A. 

      Configuring interswitch connections as trunks will cause all hosts on any VLAN to receive broadcasts from the other VLANs.

    • B. 

      A trunk connection is affected by broadcast storms on any particular VLAN that is carried by that trunk.

    • C. 

      Restricting trunk connections between switches to a single VLAN will improve efficiency of port usage.

    • D. 

      Carrying all required VLANs on a single access port will ensure proper traffic separation.

  • 10. 
     Refer to the exhibit. How far is a broadcast frame that is sent by computer Apropagated in the LAN domain?
    • A. 

      None of the computers will receive the broadcast frame

    • B. 

      Computer A, computer B, computer C

    • C. 

      Computer A, computer D, computer G

    • D. 

      Computer D, computer G

    • E. 

      Computer A, computer B, computer C, computer D, computer E, computer F, computer G, computer H, computer I

  • 11. 
    16. What statements describe how hosts on VLANs communicate?
    • A. 

      Hosts on different VLANs use VTP to negotiate a trunk.

    • B. 

      Hosts on different VLANs communicate through routers.

    • C. 

      Hosts on different VLANs should be in the same IP network.

    • D. 

      Hosts on different VLANs examine VLAN ID in the frame tagging to determine if the frame for their network.

  • 12. 
    Refer to the exhibit. Which statement is true concerning interface Fa0/5?
    • A. 

      The default native VLAN is being used.

    • B. 

      The trunking mode is set to auto.

    • C. 

      Trunking can occur with non-Cisco switches.

    • D. 

      VLAN information about the interface encapsulates the Ethernet frames.

  • 13. 
    Refer to the exhibit. The network administrator has just added VLAN 50 toSwitch1 and Switch2 and assigned hosts on the IP addresses of the VLAN in the10.1.50.0/24 subnet range. Computer A can communicate with computer B, but notwith computer C or computer D. What is the most likely cause of this problem?
    • A. 

      There is a native VLAN mismatch.

    • B. 

      The link between Switch1 and Switch2 is up but not trunked

    • C. 

      The router is not properly configured for inter-VLAN routing.

    • D. 

      VLAN 50 is not allowed to entering the trunk between Switch1 and Switch2.

  • 14. 
    13. Refer to the exhibit. Computer B is unable to communicate with computer D.What is the most likely cause of this problem?
    • A. 

      The link between the switches is up but not trunked.

    • B. 

      VLAN 3 is not an allowed VLAN to enter the trunk between the switches.

    • C. 

      The router is not properly configured to route traffic between the VLANs.

    • D. 

      Computer D does not have a proper address for the VLAN 3 address space.

  • 15. 
    12. Switch port fa0/1 was manually configured as a trunk, but now it will be used toconnect a host to the network. How should the network administrator reconfigureswitch port Fa0/1?
    • A. 

      Disable DTP.

    • B. 

      Delete any VLANs currently being trunked through port Fa0/1.

    • C. 

      Administratively shut down and re-enable the interface to return it to default.

    • D. 

      Enter the switchport mode access command in interface configuration mode.

  • 16. 
    Refer to the exhibit. The exhibited configurations do not allow the switches toform a trunk. What is the most likely cause of this problem?
    • A. 

      Cisco switches only support the ISL trunking protocol.

    • B. 

      The trunk cannot be negotiated with both ends set to auto.

    • C. 

      By default, Switch1 will only allow VLAN 5 across the link.

    • D. 

      A common native VLAN should have been configured on the switches.

  • 17. 
    10. What is the effect of the switchport mode dynamic desirable command?
    • A. 

      DTP cannot negotiate the trunk since the native VLAN is not the default VLAN.

    • B. 

      The remote connected interface cannot negotiate a trunk unless it is also configured as dynamic desirable.

    • C. 

      The connected devices dynamically determine when data for multiple VLANs must be transmitted across the link and bring the trunk up as needed.

    • D. 

      A trunk link is formed if the remote connected device is configured with the switchport mode dynamic auto or switchport mode trunk commands

  • 18. 
    A network administrator is removing several VLANs from a switch. When theadministrator enters the no vlan 1 command, an error is received. Why did thiscommand generate an error?
    • A. 

      VLAN 1 can never be deleted.

    • B. 

      VLAN 1 can only be deleted by deleting the vlan.dat file.

    • C. 

      VLAN 1 can not be deleted until all ports have been removed from it.

    • D. 

      VLAN 1 can not be deleted until another VLAN has been assigned its responsibilities.

  • 19. 
    What happens to the member ports of a VLAN when the VLAN is deleted?
    • A. 

      The ports cannot communicate with other ports

    • B. 

      The ports default back to the management VLAN

    • C. 

      The ports automatically become a part of VLAN1.

    • D. 

      The ports remain a part of that VLAN until the switch is rebooted. They then become members of the management VLAN.

  • 20. 
    7. Refer to the exhibit. Which two conclusions can be drawn regarding the switchthat produced the output shown? (Choose two.)
    • A. 

      The network administrator configured VLANs 1002-1005.

    • B. 

      The VLANs are in the active state and are in the process of negotiating configuration parameters.

    • C. 

      A FDDI trunk has been configured on this switch.

    • D. 

      The command switchport access vlan 20 was entered in interface configuration mode for Fast Ethernet interface 0/1.

    • E. 

      Devices attached to ports fa0/5 through fa0/8 cannot communicate with devices attached to ports fa0/9 through fa0/12 without the use of a Layer 3 device.

  • 21. 
    The network administrator wants to separate hosts in Building A into two VLANsnumbered 20 and 30. Which two statements are true concerning VLANconfiguration? (Choose two.)
    • A. 

      The VLANs may be named.

    • B. 

      VLAN information is saved in the startup configuration.

    • C. 

      Non-default VLANs created manually must use the extended range VLAN numbers.

    • D. 

      The network administrator may create the VLANs in either global configuration mode or VLAN database mode

    • E. 

      Both VLANs may be named BUILDING_A to distinguish them from other VLANs in different geographical locations.

Related Topics
Back to Top Back to top