Networking Subnetting and Address Translation
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Questions and Answers

What is the main focus of the Application Layer in the TCP/IP protocol suite?

  • Human interaction and software applications (correct)
  • Routing of data packets
  • Physical connectivity between hosts
  • Data encryption and decryption

    • Which protocol is responsible for distributing information in the World Wide Web?

  • DNS
  • SMTP
  • HTTP (correct)
  • FTP

    • What port number does a Hypertext Transfer Protocol (HTTP) server commonly use?

  • 20
  • 80 (correct)
  • 53
  • 443

    • Which protocol is used for transferring emails over the internet?

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

    What does DNS stand for in the context of TCP/IP?

    <p>Domain Name System</p> Signup and view all the answers

    Which protocol is commonly used for remote login and command execution?

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

    What is the key advantage of IPv6 over IPv4 in terms of address space?

    <p>Increased address size from 32 bits to 128 bits</p> Signup and view all the answers

    Which feature of IPv6 allows nodes to have very large packet payloads for greater efficiency?

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

    What security feature is enhanced in IPv6 compared to IPv4?

    <p>Network layer security</p> Signup and view all the answers

    How many individual IP addresses can be accommodated by IPv6?

    <p>340 trillion, trillion, trillion</p> Signup and view all the answers

    In an IPv6 address, how are the 8 sets of 16-bit hexadecimal values separated?

    <p>By colons (:)</p> Signup and view all the answers

    What happens if a prefix length is not specified for an IPv6 address?

    <p>Default prefix length is /64</p> Signup and view all the answers

    What is the purpose of subnetting?

    <p>To create multiple logical networks within a single Class A, B, or C network</p> Signup and view all the answers

    What problem does subnetting solve?

    <p>Expanding routing table problem</p> Signup and view all the answers

    How does subnetting divide a network?

    <p>By designating some high-order bits from the host part and grouping them with the network part</p> Signup and view all the answers

    What is the role of a proxy server in a private network with subnetting?

    <p>Translates private addresses into valid public addresses</p> Signup and view all the answers

    Which statement best describes the impact of subnetting on routing tables?

    <p>It ensures that the route from the Internet to any subnet of a given IP address is the same</p> Signup and view all the answers

    Without subnetting, what limitation exists regarding using Class A, B, or C networks?

    <p>Only one network from the Class A, B, or C network can be used</p> Signup and view all the answers

    In a Star Topology, how is each station connected?

    <p>To a common central node</p> Signup and view all the answers

    What are the two alternatives for the operation of the central node in a Star Topology?

    <p>Broadcast and frame switching</p> Signup and view all the answers

    What distinguishes a Star Topology from a linear bus topology in terms of fault detection?

    <p>Easier to detect faults in a Star Topology</p> Signup and view all the answers

    What is a disadvantage of a Star Topology in terms of cable length?

    <p>It requires more cable length than a linear topology</p> Signup and view all the answers

    If the hub or concentrator fails in a Star Topology, what happens to the nodes attached?

    <p>They are disabled</p> Signup and view all the answers

    Why is a Star Topology more expensive than linear bus topologies?

    <p>Because of the cost of the concentrators</p> Signup and view all the answers

    What is the main purpose of reserving a portion of the IPv4 address space for private addresses?

    <p>To prevent duplication between public and private addresses</p> Signup and view all the answers

    What is the range of valid IPv4 unicast addresses allowed by the 172.16.0.0/12 address prefix?

    <p>172.16.0.1 to 172.31.255.254</p> Signup and view all the answers

    How many host bits are available for addressing within the 192.168.0.0/16 address prefix?

    <p>16</p> Signup and view all the answers

    Why will Internet routers never contain routes to private addresses?

    <p>Private addresses are reserved for internal use and are not routable on the Internet</p> Signup and view all the answers

    Which address prefix allows for the most number of available unique IPv4 unicast addresses?

    <p>10.0.0.0/8</p> Signup and view all the answers

    What is a key characteristic of IPv4 private addresses compared to public addresses?

    <p>They are never assigned as public addresses</p> Signup and view all the answers

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