logo

CuriousTab

CuriousTab

Discussion


Home Networking Spanning Tree Protocol See What Others Are Saying!
  • Question
  • If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?


  • Options
  • A. Discard it and send an error message back to the originating host
  • B. Flood the network with the frame
  • C. Add the source address and port to the MAC address table and forward the frame out the destination port
  • D. Add the destination to the MAC address table and then forward the frame

  • Correct Answer
  • Add the source address and port to the MAC address table and forward the frame out the destination port 

    Explanation
    Since the source MAC address is not in the MAC address table, the switch will add the source address and the port it is connected to into the MAC address table and then forward the frame to the outgoing port.

  • More questions

    • 1. You telnet into a remote device and type debug ip rip, but no output from the debug command is seen. What could the problem be?

    • Options
    • A. You must type the show ip rip command first.
    • B. IP addressing on the network is incorrect.
    • C. You must use the terminal monitor command.
    • D. Debug output is sent only to the console.
    • Discuss
    • 2. Using the following illustration, what would be the IP address of E0 if you were using the eighth subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. The zero subnet should not be considered valid for this question.

    • Options
    • A. 192.168.10.142
    • B. 192.168.10.66
    • C. 192.168.100.254
    • D. 192.168.10.143
    • E. 192.168.10.126
    • Discuss
    • 3. What are the two main types of access control lists (ACLs)?

      1. Standard
      2. IEEE
      3. Extended
      4. Specialized

    • Options
    • A. 1 and 3
    • B. 2 and 4
    • C. 3 and 4
    • D. 1 and 2
    • Discuss
    • 4. What does the command o/r 0x2142 provide?

    • Options
    • A. It is used to restart the router.
    • B. It is used to bypass the configuration in NVRAM.
    • C. It is used to enter ROM Monitor mode.
    • D. It is used to view the lost password.
    • Discuss
    • 5. The configuration register setting of 0x2102 provides what function to a router?

    • Options
    • A. Tells the router to boot into ROM monitor mode
    • B. Provides password recovery
    • C. Tells the router to look in NVRAM for the boot sequence
    • D. Boots the IOS from a TFTP server
    • Discuss
    • 6. What is the purpose of flow control?

    • Options
    • A. To ensure that data is retransmitted if an acknowledgment is not received.
    • B. To reassemble segments in the correct order at the destination device.
    • C. To provide a means for the receiver to govern the amount of data sent by the sender.
    • D. To regulate the size of each segment.
    • Discuss
    • 7. Which three commands can be used to check LAN connectivity problems on a router?

      1. show interfaces
      2. show ip route
      3. tracert
      4. ping
      5. dns lookups

    • Options
    • A. 1 ,2 and 4
    • B. 2 and 5
    • C. 3 and 5
    • D. None of the above
    • Discuss
    • 8. Which command will configure a switch port to use the IEEE standard method of inserting VLAN membership information into Ethernet frames?

    • Options
    • A. Switch(config)# switchport trunk encapsulation isl
    • B. Switch(config)# switchport trunk encapsulation ietf
    • C. Switch(config)# switchport trunk encapsulation dot1q
    • D. Switch(config-if)# switchport trunk encapsulation isl
    • E. Switch(config-if)# switchport trunk encapsulation dot1q
    • Discuss
    • 9. To test the IP stack on your local host, which IP address would you ping?

    • Options
    • A. 127.0.0.0
    • B. 1.0.0.127
    • C. 127.0.0.1
    • D. 127.0.0.255
    • Discuss
    • 10. Which command is used to determine if an IP access list is enabled on a particular interface?

    • Options
    • A. show access-lists
    • B. show interface
    • C. show ip interface
    • D. show interface access-lists
    • Discuss


    Comments

    There are no comments.

Enter a new Comment