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Free Practice Quiz Question List

1 Networking Fundamentals and Protocols Online Quiz Questions

Use this free practice quiz with 20 questions to review 1 Networking Fundamentals and Protocols, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: IPv6 uses broadcast addressing to send traffic to all hosts on a local link.

  1. A

    True

  2. B

    False

02
Choose one
1 point

A device is forwarding frames between devices on the same LAN by examining hardware addresses. Which device role best fits this task?

  1. A

    It forwards packets between IP networks using routing tables.

  2. B

    It usually forwards frames within a LAN using MAC addresses.

  3. C

    It assigns IP configuration settings to hosts.

  4. D

    It adapts signals for a particular access technology.

03
True or false
1 point

True or false: ICMP echo requests used by ping are identified by a TCP or UDP port number.

  1. A

    True

  2. B

    False

04
Choose one
1 point

A troubleshooting issue concerns forwarding based on IP destinations between networks. Which OSI layer should you investigate first?

  1. A

    Application

  2. B

    Transport

  3. C

    Network

  4. D

    Data Link

05
Choose one
1 point

A client is using HTTP/3 on its common port, 443. Which transport protocol does HTTP/3 use?

  1. A

    TCP

  2. B

    UDP

  3. C

    ICMP

  4. D

    ARP

06
Choose all
1 point

Which options exactly match the three private IPv4 ranges listed in the material? Select all correct choices.

  1. A

    10.0.0.0/8

  2. B

    172.0.0.0/12

  3. C

    172.16.0.0/12

  4. D

    192.168.1.0/24

  5. E

    192.168.0.0/16

07
Choose one
1 point

A network scan finds traffic using a registered port assigned to a familiar service. What can you conclude from the port number alone?

  1. A

    It proves that the registered service is currently running.

  2. B

    It proves the traffic is encrypted.

  3. C

    It indicates a port assignment, but does not prove which service is actually running.

  4. D

    It identifies the device's MAC address.

08
Written response
1 point

A host determines that a destination IP address is outside its own subnet. What is the usual next-hop role it sends the frame to?

09
Written response
1 point

A conventional IPv4 /28 subnet excludes its network and broadcast addresses. How many assignable host addresses does it contain? The calculation is (24)−2(2^4)-2.

10
Choose all
1 point

Which statements describe TCP? Select all correct choices.

  1. A

    It provides ordered, reliable byte-stream delivery.

  2. B

    It uses flow control.

  3. C

    It is connectionless and does not itself guarantee delivery.

  4. D

    It uses no connection setup or delivery machinery.

  5. E

    It uses sequence numbers and acknowledgments, with retransmission when needed.

11
Open ended
1 point

A laptop sends a web request to a server on a different IP network. Explain which destination address is used in the laptop's first frame, what destination is used in the IP packet, what routers change as the packet crosses links, and how the data is delivered to the correct application.

12
Choose one
1 point

Which information does a switch typically use to forward frames within a LAN?

  1. A

    MAC addresses

  2. B

    IP routing tables

  3. C

    TCP port numbers

  4. D

    DNS records

13
Choose one
1 point

Which protocol carries the echo requests used by ping and does not use TCP or UDP ports?

  1. A

    TCP

  2. B

    UDP

  3. C

    ICMP

  4. D

    ARP

14
Choose one
1 point

In the OSI model, what is the protocol data unit (PDU) at the Network layer?

  1. A

    Frame

  2. B

    Packet

  3. C

    Segment

  4. D

    Bit

15
True or false
1 point

True or false: DNS helps resolve names to IP addresses, while DHCP helps a host obtain network configuration.

  1. A

    True

  2. B

    False

16
Written response
1 point

What is the common port number for RDP (Remote Desktop Protocol)?

17
Written response
1 point

What prefix length is typical for an IPv6 LAN? Enter the number of bits in the prefix, without the slash.

18
Choose one
1 point

Which IPv4 block exactly matches one of the private ranges listed in the material? Select one answer.

  1. A

    172.0.0.0/8

  2. B

    172.16.0.0/16

  3. C

    172.16.0.0/12

  4. D

    172.32.0.0/12

19
Fill in the blank
1 point

A device encapsulates an application message for transmission using TCP. What transport-layer data unit does it create?

20
Fill in the blank
1 point

A receiving device removes the headers added during transmission, in reverse order, to recover the original application message. This process is called .