Computer Network Chapter 2: Logical Topology & Network Protocols

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Questions and Answers

What defines how data should be transferred?

  • Protocol suite
  • Physical topology
  • Logical topology (correct)
  • Network protocol

What is a group of inter-related protocols that perform a communication function called?

  • Network protocol
  • Physical topology
  • Protocol suite (correct)
  • Logical topology

What is the purpose of a network protocol?

  • To allow devices to communicate with each other (correct)
  • To pass error and system messages
  • To define the format of a message
  • To connect devices physically

What does a network protocol describe?

<p>The format of a message and how error messages are passed (B)</p> Signup and view all the answers

What is a standard in the context of network protocols?

<p>A process or protocol ratified by a standards organization (A)</p> Signup and view all the answers

What is the purpose of layering in network protocols?

<p>To view protocols as a layered model (D)</p> Signup and view all the answers

What is the primary purpose of a reference model in a layered model?

<p>To aid in clearer understanding of the functions and process involved. (C)</p> Signup and view all the answers

What is the OSI model an example of?

<p>A reference model (A)</p> Signup and view all the answers

What is the primary purpose of a protocol model?

<p>To provide a model that closely matches the structure of a particular protocol suite. (A)</p> Signup and view all the answers

What is the first step in how TCP/IP works?

<p>Creation of data at the application layer of the originating source device. (D)</p> Signup and view all the answers

What does TCP/IP stand for?

<p>Transmission Control Protocol/Internet Protocol (C)</p> Signup and view all the answers

What is the primary purpose of addressing in a network?

<p>To connect and move data packets between devices (C)</p> Signup and view all the answers

What happens to data as it passes down the protocol stack in the source end device?

<p>It is segmented and encapsulated. (C)</p> Signup and view all the answers

What happens to the packet header as it travels through the TCP/IP protocol stack?

<p>Protocols at each layer add or remove fields from the header (B)</p> Signup and view all the answers

What is the process of adding data to the packet header called?

<p>Data encapsulation (D)</p> Signup and view all the answers

Which layer of the TCP/IP stack is responsible for receiving data at the destination end device?

<p>Network access layer (C)</p> Signup and view all the answers

What happens to the data after it reaches the destination end device?

<p>It is passed to the application layer (D)</p> Signup and view all the answers

What is the sequence of events in sending data over a network?

<p>The user's command passes through the TCP/IP protocol stack, then across the network media (A)</p> Signup and view all the answers

What is the primary function of Layer 3 protocols?

<p>To move data from source to destination (D)</p> Signup and view all the answers

What is the address called that represents the end device at Layer 2?

<p>Media Access Control (MAC) address (C)</p> Signup and view all the answers

What is the term for connecting devices to switches and routers?

<p>Switching (D)</p> Signup and view all the answers

What is the purpose of a port number in Layer 4?

<p>To represent an application or service (B)</p> Signup and view all the answers

What is used to identify a unique dialogue between devices in Layer 4?

<p>A pair of Layer 4 source and destination port numbers (B)</p> Signup and view all the answers

What is the network identifier portion of the IP address used for?

<p>To determine which path to use to reach the destination host (C)</p> Signup and view all the answers

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