CCNA 3 Chapter 3, Discovery 4.0

20 Questions | Total Attempts: 258

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CCNA Discovery Quizzes & Trivia

Questions and Answers
  • 1. 
    Refer to the exhibit. What two statements can be concluded from the information that is shown in the exhibit? (Choose two.)
    • A. 

      All ports that are listed in the exhibit are access ports.

    • B. 

      ARP requests from Host1 will be forwarded to Host2

    • C. 

      Attaching Host1 to port 3 will automatically allow communication between both hosts

    • D. 

      The default gateway for each host must be changed to 192.168.3.250/28 to allow communication between both hosts

    • E. 

      A router connected to the switch is needed to forward traffic between the hosts

  • 2. 
    A router is configured to connect to a trunked uplink as shown in the exhibit. A packet is received on the FastEthernet 0/1 physical interface from VLAN 10. The packet destination address is 192.168.1.120. What will the router do with this packet?
    • A. 

      The router will forward the packet out of interface FastEthernet 0/1.1 tagged for VLAN 10

    • B. 

      The router will forward the packet out of interface FastEthernet 0/1.2 tagged for VLAN 60

    • C. 

      The router will forward the packet out of interface FastEthernet 0/1.3 tagged for VLAN 60

    • D. 

      The router will forward the packet out interface FastEthernet 0/1.3 tagged for VLAN 120

    • E. 

      The router will not process the packet since the source and destination are on the same subnet

    • F. 

      The router will drop the packet since no network that includes that source address is attached to the router.

  • 3. 
    The information contained in a BPDU is used for which two purposes? (Choose two.)
    • A. 

      To prevent loops by sharing bridging tables between connected switches

    • B. 

      To set the duplex mode of a redundant link

    • C. 

      To determine the shortest path to the root bridge

    • D. 

      To determine which ports will forward frames as part of the spanning tree

    • E. 

      To activate looped paths throughout the network

  • 4. 
    A router has two serial interfaces and two Fast Ethernet interfaces. This router must be connected to a WAN link and to a switch that supports four VLANs. How can this be accomplished in the most efficient and cost-effective manner to support inter-VLAN routing between the four VLANs?
    • A. 

      Connect a smaller router to the serial interface to handle the inter-VLAN traffic

    • B. 

      Add two additional FastEthernet interfaces to the router to allow one VLAN per interface

    • C. 

      Connect a trunked uplink from the switch to one FastEthernet interface on the router and create logical subinterfaces for each VLAN

    • D. 

      Use serial-to-FastEthernet tranceivers to connect two of the VLANs to the serial ports on the router. Support the other two VLANs directly to the available FastEthernet ports

  • 5. 
    When are MAC addresses removed from the CAM table?
    • A. 

      At regular 30 second intervals

    • B. 

      When a broadcast packet is received

    • C. 

      When the IP address of a host is changed

    • D. 

      After they have been idle for a certain period of time

  • 6. 
    Refer to the exhibit. Switch1 is not participating in the VTP management process with the other switches. Which two are possible reasons for this? (Choose two.)
    • A. 

      Switch2 is in transparent mode

    • B. 

      Switch1 is in client mode

    • C. 

      Switch1 is using VTP version 1 and Switch2 is using VTP version 2

    • D. 

      Switch2 is in server mode

    • E. 

      Switch1 is in a different management domain

    • F. 

      Switch1 has no VLANs

  • 7. 
    Which three must be used when a router interface is configured for VLAN trunking? (Choose three.)
    • A. 

      One subinterface per VLAN

    • B. 

      One physical interface for each subinterface

    • C. 

      One IP network or subnetwork for each subinterface

    • D. 

      One trunked link per VLAN

    • E. 

      A management domain for each subinterface

    • F. 

      A compatible trunking protocol encapsulation for each subinterface

  • 8. 
    Refer to the exhibit. The switches are connected with trunks within the same VTP management domain. Each switch is labeled with its VTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this? VLANs cannot be created on transparent mode switches.
    • A. 

      Server mode switches neither listen to nor forward VTP messages from transparent mode switches

    • B. 

      VLANs created on transparent mode switches are not included in VTP advertisements

    • C. 

      There are no ports assigned to the new VLAN on the other switches

    • D. 

      Transparent mode switches do not forward VTP advertisements

  • 9. 
    Which two criteria are used by STP to select a root bridge? (Choose two.)
    • A. 

      Memory size

    • B. 

      Bridge priority

    • C. 

      Switching speed

    • D. 

      Number of ports

    • E. 

      Best MAC address

    • F. 

      Switch location

  • 10. 
    Which three steps should be taken before moving a Catalyst switch to a new VTP management domain? (Choose three.)
    • A. 

      Reboot the switch

    • B. 

      Reset the VTP counters to allow the switch to synchronize with the other switches in the domain

    • C. 

      Download the VTP server in the new domain

    • D. 

      Configure the VTP server in the domain to recognize the BID of the new switch

    • E. 

      Select the correct VTP mode and version

    • F. 

      Configure the switch with the name of the new management domain

  • 11. 
    Which two items will prevent broadcasts from being sent throughout the network? (Choose two.)
    • A. 

      Bridges

    • B. 

      Routers

    • C. 

      Switches

    • D. 

      VLANs

    • E. 

      Hubs

  • 12. 
    Which two characteristics describe a port in the STP blocking state? (Choose two.)
    • A. 

      Provides port security

    • B. 

      Displays a steady green light

    • C. 

      Learns MAC addresses as BPDUs are processed

    • D. 

      Discards data frames received from the attached segment

    • E. 

      Receives BPDUs and directs them to the system module

  • 13. 
    What is the first step in the process of convergence in a spanning tree topology?
    • A. 

      Election of the root bridge

    • B. 

      Determination of the designated port for each segment

    • C. 

      Blocking of the non-designated ports

    • D. 

      Selection of the designated trunk port

    • E. 

      Activation of the root port for each segment

  • 14. 
    In which STP state does a switch port transmit user data and learn MAC addresses?
    • A. 

      Blocking

    • B. 

      Learning

    • C. 

      Disabled

    • D. 

      Listening

    • E. 

      Forwarding

  • 15. 
    What is the main purpose of VTP?
    • A. 

      Maintaining consistency in VLAN configuration across the network

    • B. 

      Routing frames from one VLAN to another

    • C. 

      Routing the frames along the best path between switches

    • D. 

      Tagging user data frames with VLAN membership information

    • E. 

      Distributing BPDUs to maintain loop-free switched ports

  • 16. 
    Which statement best describes adaptive cut-through switching?
    • A. 

      The switch initially forwards all traffic using cut-through switching and then changes to store-and-forward switching if errors exceed a threshold value.

    • B. 

      The switch initially forwards all traffic using cut-through switching and then temporarily disables the port if errors exceed a threshold value.

    • C. 

      The switch initially forwards all traffic using store-and-forward switching and then changes to cut-through switching if errors exceed a threshold value.

  • 17. 
    Using STP, how long does it take for a switch port to go from the blocking state to the forwarding state?
    • A. 

      2 seconds

    • B. 

      15 seconds

    • C. 

      20 seconds

    • D. 

      50 seconds

  • 18. 
    Refer to the exhibit. The switches are interconnected by trunked links and are configured for VTP as shown. A new VLAN is added to Switch1. Which three actions will occur? (Choose three.)
    • A. 

      Switch1 will not add the VLAN to its database and will pass the update to Switch2

    • B. 

      Switch2 will add the VLAN to its database and pass the update to Switch3

    • C. 

      Switch3 will pass the VTP update to Switch4

    • D. 

      Switch3 will add the VLAN to its database

    • E. 

      Swtich4 will add the VLAN to its database

    • F. 

      Switch4 will not receive the update

  • 19. 
    Which Catalyst feature causes a switch port to enter the spanning-tree forwarding state immediately?
    • A. 

      Backbone fast

    • B. 

      Uplink fast

    • C. 

      Portfast

    • D. 

      Rapid spanning tree

  • 20. 
    Refer to the exhibit. Which set of commands would be used on the router to provide communication between the two hosts connected to the switch?
    • A. 

      Router(config)# interface vlan 2 Router(config-if)# ip address 192.168.2.1 255.255.255.0 Router(config-if)# no shutdown Router(config)# interface vlan 3 Router(config-if)# ip address 192.168.3.1 255.255.255.0 Router(config-if)# no shutdown

    • B. 

      Router(config)# interface fastethernet 0/0 Router(config-if)# no shutdown Router(config-if)# interface fastethernet 0/0.2 Router(config-subif)# encapsulation dot1q 2 Router(config-subif)# ip address 192.168.2.1 255.255.255.0 Router(config-if)# interface fastethernet 0/0.3 Router(config-subif)# encapsulation dot1q 3 Router(config-subif)# ip address 192.168.3.1 255.255.255.0

    • C. 

      Router(config)# interface vlan 2 Router(config-if)# switchport mode trunk dot1q Router(config)# interface vlan 3 Router(config-if)# switchport mode trunk dot1q

    • D. 

      Router(config)# interface fastethernet 0/0 Router(config-if)# mode trunk dot1q 2 3 Router(config-if)# ip address 192.168.2.1 255.255.255.0

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