Practice Quiz

CompTIA Network+ Exam Review - Question List

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16. John wants to divide his organization’s network into 6 subnets. He should be able to allocate a maximum of 25 hosts on each subnet. The organization’s network address is 202.142.16.5. Which of the following classful subnet masks should he use?
  1. 255.255.255.240
  2. 255.255.255.224
  3. 255.255.255.192
  4. 255.255.255.128
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17. John deletes the contents of the router’s NVRAM and reboots it. Which of the following modes will the router go to when it reboots?
  1. Global
  2. Privileged
  3. Setup
  4. Reboot
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18. David has connected two switches using two crossover cables for redundancy. STP is disabled. Which of the following is most likely to happen between the switches?
  1. The switched network will have broadcast storms.
  2. The switches load balance between the two available links.
  3. The routing tables on the switches will not get updated.
  4. The MAC forward/filter table on the switches will not get updated.
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19. A switch receives a frame from a host on the network. The source MAC address on the frame is not listed in the MAC address table, but the destination MAC address is. What happens with the frame?
  1. The frame is discarded.
  2. The frame is broadcast to all other ports on the network.
  3. The switch adds the source MAC address and the port to the MAC address table and sends the frame to the destination address.
  4. The frame is sent back to the source MAC address.
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20. David is working as a network administrator at his organization. One of the switches on his network has a port status LED that is alternating between green and amber. What could this indicate?
  1. There is a problem with the switch.
  2. The port is in STP blocking mode.
  3. The switch is operating normally.
  4. The port is shut down.
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