Network Communication and Protocols
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What is the primary purpose of the Network Layer protocol?

  • To define how data is delivered from one system to another (correct)
  • To establish the rules of communication between entities
  • To provide a service for individual applications to communicate with each other
  • To initiate a connection using a three-way handshake protocol

    • What is the main difference between the Network Layer protocol and the Application Layer protocol?

  • The Network Layer protocol is used for initiating connections, while the Application Layer protocol is used for closing connections
  • The Network Layer protocol is responsible for error correction, while the Application Layer protocol is responsible for data delivery
  • The Network Layer protocol is used for establishing connections, while the Application Layer protocol is used for communicating data (correct)
  • The Network Layer protocol is specific to individual applications, while the Application Layer protocol is a general protocol

    • What is the purpose of the DNS service?

  • To assign IP addresses to computers
  • To provide a protocol for communicating data
  • To establish a connection between two systems
  • To map a FQDN to an IP address (correct)

    • What is the role of the client process in network communication?

    <p>To initiate a connection to the server process and send a request</p> Signup and view all the answers

    What is the composition of a socket?

    <p>A combination of an IP address and a port number</p> Signup and view all the answers

    What is the primary function of a server in a network?

    <p>To receive and process requests from multiple clients at a time</p> Signup and view all the answers

    Which network tool is used to connect to remote hosts and send arbitrary requests?

    <p>TELNET</p> Signup and view all the answers

    What is the primary function of the NSLOOKUP tool?

    <p>To lookup IP addresses of hosts using their FQDN</p> Signup and view all the answers

    Which protocol can be demonstrated using TELNET?

    <p>Both HTTP and SMTP</p> Signup and view all the answers

    What is the purpose of the Packet Internet Groper (PING) tool?

    <p>To test connectivity between two hosts</p> Signup and view all the answers

    What is the primary purpose of the HTTP RESPONSE?

    <p>To indicate whether a request was successful or not</p> Signup and view all the answers

    What does the HTTP Response Code 404 indicate?

    <p>The resource you are looking for was not found</p> Signup and view all the answers

    What is the purpose of the HTTP header in an HTTP RESPONSE?

    <p>To provide additional information about the request</p> Signup and view all the answers

    What is the purpose of the HTTP protocol?

    <p>To request and receive resources over the internet</p> Signup and view all the answers

    What is the purpose of the SMTP protocol?

    <p>To send emails over the internet</p> Signup and view all the answers

    What can be used to demonstrate the HTTP protocol?

    <p>TELNET</p> Signup and view all the answers

    What are the three parts of an HTTP RESPONSE?

    <p>Response Code, Header, and Body</p> Signup and view all the answers

    What does the HTTP Response Code 301 indicate?

    <p>The resource has permanently moved to another location</p> Signup and view all the answers

    What is the purpose of the Body in an HTTP RESPONSE?

    <p>To contain the actual response from the server</p> Signup and view all the answers

    What is the purpose of the HTTP Response Code?

    <p>To indicate whether a request was successful or not</p> Signup and view all the answers

    What does the server process do after accepting a client connection?

    <p>Establishes a two-way communication channel</p> Signup and view all the answers

    What is the purpose of the java.net.ServerSocket class?

    <p>To represent a server socket</p> Signup and view all the answers

    What happens when the server.accept() method is called?

    <p>The server blocks until a client connection is made</p> Signup and view all the answers

    What is the purpose of the InputStream object in the context of a server process?

    <p>To receive a request from the client</p> Signup and view all the answers

    What is the purpose of the OutputStream object in the context of a server process?

    <p>To send a response to the client</p> Signup and view all the answers

    How does the server process initiate the connection closure?

    <p>By calling a specific method depending on the protocol</p> Signup and view all the answers

    What is the significance of the port number in the ServerSocket constructor?

    <p>It specifies the network port to listen on</p> Signup and view all the answers

    What happens when the server process is created with the statement ServerSocket server = new ServerSocket(1200)?

    <p>The server process listens on network port 1200</p> Signup and view all the answers

    What is the purpose of the Socket object in the context of a server process?

    <p>To represent a client socket</p> Signup and view all the answers

    What is the significance of the accept() method in the context of a server process?

    <p>It accepts a client connection</p> Signup and view all the answers

    What is the primary characteristic of RESTful APIs that enables better caching and reduces server load?

    <p>Stateless nature</p> Signup and view all the answers

    What is the primary advantage of using JSON as a data-interchange format?

    <p>It is a lightweight format that is easy for humans to read and write, and easy for machines to parse and generate</p> Signup and view all the answers

    What is the primary benefit of using RESTful APIs in terms of scalability?

    <p>They can handle a large number of requests from a wide range of clients</p> Signup and view all the answers

    What is the primary characteristic of RESTful APIs that enables interoperability with different platforms and languages?

    <p>Adherence to standard HTTP methods</p> Signup and view all the answers

    What is the primary purpose of using Uniform Resource Locator (URL) addresses in RESTful APIs?

    <p>To access and manipulate resources using methods such as GET, POST, PUT, PATCH, DELETE</p> Signup and view all the answers

    What is the primary characteristic of JSON data?

    <p>It is language-independent and can be used with any programming language</p> Signup and view all the answers

    What is the purpose of a JSON Array?

    <p>To store a list of values</p> Signup and view all the answers

    What is the syntax for enclosing a JSON Object?

    <p>Curly braces: {}</p> Signup and view all the answers

    Why is a third-party library required to work with JSON objects in Java?

    <p>Because JSON is not a built-in Java library</p> Signup and view all the answers

    What is an example of a JSON document?

    <p>[{&quot;Name&quot;:&quot;Student1&quot;,&quot;Email&quot;:&quot;<a href="mailto:[email protected]">[email protected]</a>&quot;,&quot;Phone&quot;:&quot;Student1Phone&quot;},{&quot;Name&quot;:&quot;Student2&quot;,&quot;Email&quot;:&quot;<a href="mailto:[email protected]">[email protected]</a>&quot;,&quot;Phone&quot;:&quot;Student2Phone&quot;}]</p> Signup and view all the answers

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