Chapter 1

MCQ Practice

Practice with chapter-linked multiple-choice questions.

MCQ Practice

18 published questions

Chapter-linked multiple-choice prompts with learner-readable choices only.

Question 1

Multiple choice

Unanswered

Prompt

Which description best defines a networking model?

  1. A
    A single program that controls network traffic
  2. B
    A cable type used to connect devices
  3. C
    A comprehensive set of documents defining how a network should work
  4. D
    A device that forwards data between physical links

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Question 2

Multiple choice

Unanswered

Prompt

A company needs products from several vendors to work together without maintaining separate vendor-specific networks. Which choice best fits this requirement?

  1. A
    Keep a separate proprietary model for each vendor
  2. B
    Use a common open, vendor-neutral model such as TCP/IP
  3. C
    Use only a physical-layer standard without a networking model
  4. D
    Use one vendor’s model and expect all other vendors to adopt it

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Question 3

Multiple choice

Unanswered

Prompt

In networking, what is a protocol?

  1. A
    A physical connector used on a cable
  2. B
    A group of computers on one LAN
  3. C
    A device that routes packets
  4. D
    A set of logical rules devices follow to communicate

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Question 4

Multiple choice

Unanswered

Prompt

What is the primary role of TCP/IP application-layer protocols?

  1. A
    Provide network services needed by application software
  2. B
    Forward packets based on destination IP addresses
  3. C
    Add Ethernet headers and trailers to packets
  4. D
    Encode signals onto the transmission medium

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Question 5

Multiple choice

Unanswered

Prompt

A browser requests home.htm from a web server. Which sequence matches the described HTTP exchange?

  1. A
    Browser sends HTTP GET; server sends HTTP OK with the first file part; server sends later file data without repeating the header
  2. B
    Server sends data-only content; browser sends HTTP GET; server sends HTTP OK
  3. C
    Browser sends HTTP OK; server asks for the file; browser returns all data
  4. D
    Server sends all data first; browser then sends HTTP GET

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Question 6

Multiple choice

Unanswered

Prompt

A browser requests a web page, but one message carrying page data is lost. Which option correctly assigns the roles of HTTP and TCP?

  1. A
    TCP requests and returns the web page, while HTTP performs error recovery
  2. B
    IP retrieves the web page, while Ethernet tracks missing sequence numbers
  3. C
    The data-link layer requests the file, while the physical layer returns the content
  4. D
    HTTP requests and returns web content, while TCP detects lost data and requests retransmission

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Question 7

Multiple choice

Unanswered

Prompt

A server sends TCP segments with sequence numbers 1, 2, and 3. A client receives segments 1 and 3 but not segment 2. What happens next?

  1. A
    The client asks the sender to send segment 2 again
  2. B
    The client asks the sender to send segment 1 again
  3. C
    The client assumes segment 3 includes the missing data
  4. D
    The client removes the TCP header from segment 3

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Question 8

Multiple choice

Unanswered

Prompt

Which example shows adjacent-layer interaction rather than same-layer interaction?

  1. A
    TCP on one computer uses sequence numbers to communicate with TCP on another computer
  2. B
    HTTP on one computer uses TCP on the same computer for error-recovery service
  3. C
    A router compares a destination IP address with known routes
  4. D
    A router removes an Ethernet header and trailer from a received frame

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Question 9

Multiple choice

Unanswered

Prompt

Which statement best compares the lower layers of the modern five-layer TCP/IP model with the OSI model?

  1. A
    Their lower layers use different names and unrelated functions
  2. B
    TCP/IP divides its application layer into session, presentation, and application layers
  3. C
    Their bottom four layers match in name, number, and general meaning
  4. D
    OSI is the networking model commonly used instead of TCP/IP today

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Question 10

Multiple choice

Unanswered

Prompt

In modern TCP/IP networking terminology, what does the phrase “Layer 7 protocol” generally refer to?

  1. A
    A physical-layer signaling protocol
  2. B
    An application-layer protocol
  3. C
    A network-layer routing protocol
  4. D
    A data-link-layer framing protocol

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Question 11

Multiple choice

Unanswered

Prompt

What is an important purpose of IP addressing?

  1. A
    To uniquely identify TCP/IP hosts in the network
  2. B
    To request files from a web server
  3. C
    To detect lost TCP segments
  4. D
    To create Ethernet headers and trailers

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Question 12

Multiple choice

Unanswered

Prompt

Which comparison correctly describes what a sending host and a router do when forwarding an IP packet toward a remote destination?

  1. A
    The host selects every router on the path, while the router only transmits electrical signals
  2. B
    The host compares remote IP routes, while the router creates the HTTP response
  3. C
    The host uses TCP sequence numbers for routing, while the router uses HTTP headers to choose the next hop
  4. D
    The host sends to a nearby router without knowing the full path, while the router uses the destination address and known routes to choose the next hop

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Question 13

Multiple choice

Unanswered

Prompt

After a host’s IP process chooses a nearby router as the next hop, which action is performed by the data-link and physical layers rather than IP routing?

  1. A
    Compare the destination IP address with routes to choose another router
  2. B
    Determine which web page file should be requested from a server
  3. C
    Add an Ethernet header and trailer, then transmit the frame bits over the link
  4. D
    Send an acknowledgment requesting a missing TCP sequence number

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Question 14

Multiple choice

Unanswered

Prompt

A host sends an IP packet across an Ethernet LAN to router R1. Which order correctly describes the Ethernet link-layer and physical-layer process?

  1. A
    Add Ethernet header and trailer → transmit bits → R1 receives and re-creates the bits → remove Ethernet header and trailer
  2. B
    Add an IP header → remove the Ethernet header and trailer → transmit bits → receive the signal
  3. C
    Transmit the IP packet → add Ethernet header and trailer → receive the frame → remove the IP header
  4. D
    Remove the Ethernet header and trailer → add Ethernet header and trailer → transmit the bits → receive the signal

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Question 15

Multiple choice

Unanswered

Prompt

Which option correctly shows the five-step process a TCP/IP host uses to send data?

  1. A
    Application data and header → transport header → IP header → data-link header and trailer → transmit bits
  2. B
    Application data and header → IP header → transport header → data-link header and trailer → transmit bits
  3. C
    Application data and header → transport header → data-link header and trailer → IP header → transmit bits
  4. D
    Application data and header → data-link header and trailer → transport header → IP header → transmit bits

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Question 16

Multiple choice

Unanswered

Prompt

Which statement correctly distinguishes network-layer encapsulation from data-link-layer encapsulation?

  1. A
    IP adds a network-layer header, while the data-link layer adds both a header and trailer
  2. B
    IP adds both a header and trailer, while the data-link layer adds only a header
  3. C
    IP sends electrical signals, while the data-link layer requests web pages
  4. D
    IP creates HTTP requests, while the data-link layer performs TCP acknowledgments

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Question 17

Multiple choice

Unanswered

Prompt

Which mapping correctly matches TCP/IP message terminology to the related layer?

  1. A
    Segment: application; packet: data link; frame: network
  2. B
    Segment: transport; packet: network; frame: data link
  3. C
    Segment: network; packet: transport; frame: physical
  4. D
    Segment: data link; packet: physical; frame: transport

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Question 18

Multiple choice

Unanswered

Prompt

Which option best separates the physical-layer role from the data-link-layer role on an Ethernet link?

  1. A
    The physical layer chooses IP routes, while the data-link layer assigns IP addresses
  2. B
    The physical layer requests web pages, while the data-link layer performs TCP recovery
  3. C
    The physical layer encodes signals onto the medium, while the data-link layer defines rules for using that physical media
  4. D
    The physical layer returns web content, while the data-link layer creates TCP sequence numbers

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