Internet Addressing Overview
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Questions and Answers

What is the purpose of cladding in fibre optic cables?

  • To facilitate light transmission through reflection (correct)
  • To absorb shock and protect the fibre
  • To increase the weight of the cable
  • To provide insulation from heat and cold

    • Which of the following is NOT an advantage of fibre optic cables over copper cables?

  • More susceptibility to interference (correct)
  • Higher bandwidth capacity
  • Ability to transmit data over longer distances
  • Higher data transmission speed

    • What is the main function of the plastic jacket in a fibre optic cable?

  • To serve as the data transmission medium
  • To reflect light back into the core
  • To preserve fibre strength and absorb shock (correct)
  • To facilitate electromagnetic interference

    • How does the diameter of the core affect the performance of fibre optic cables?

    <p>Larger cores allow more light transmission</p> Signup and view all the answers

    Which characteristic of fibre optic cable contributes to its higher reliability compared to copper cable?

    <p>It is not affected by electromagnetic interference</p> Signup and view all the answers

    What is the primary purpose of internet addressing?

    <p>To identify and route devices on a network</p> Signup and view all the answers

    How does IP addressing help with scalability?

    <p>By allowing for the continuous growth of unique addresses</p> Signup and view all the answers

    What is the format of an IPv4 address?

    <p>32-bit decimal numbers</p> Signup and view all the answers

    Which addressing scheme provides a unique identifier at the data link layer?

    <p>MAC Addressing</p> Signup and view all the answers

    What major advantage does IPv6 have over IPv4?

    <p>Improved routing efficiency and vastly increased address space</p> Signup and view all the answers

    What is the purpose of the Domain Name System (DNS)?

    <p>To convert human-readable names into IP addresses</p> Signup and view all the answers

    What is one limitation of IPv4 addressing?

    <p>Has approximately 4.3 billion unique addresses</p> Signup and view all the answers

    Which option describes a key role of internet addressing in network management?

    <p>Facilitating device identification for troubleshooting</p> Signup and view all the answers

    What type of domain is represented by .org?

    <p>Non-profit organizations</p> Signup and view all the answers

    Which of the following is a country code top-level domain for Canada?

    <p>.ca</p> Signup and view all the answers

    What is the primary purpose of a DNS Resolver?

    <p>To translate domain names into IP addresses</p> Signup and view all the answers

    Which type of server holds the DNS records for specific domains?

    <p>Authoritative Name Servers</p> Signup and view all the answers

    What does the .gov domain signify?

    <p>Government entities</p> Signup and view all the answers

    Which of the following records specifies the mail servers for a domain?

    <p>MX records</p> Signup and view all the answers

    What does the .mil domain represent?

    <p>Military organizations</p> Signup and view all the answers

    What is the function of Root Name Servers in DNS?

    <p>Direct queries to appropriate TLD servers</p> Signup and view all the answers

    What technology is primarily associated with 4G networks?

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

    Which feature is expected in 5G technology that differentiates it from 4G?

    <p>Ultra-reliable low-latency communication</p> Signup and view all the answers

    What is one of the main benefits of 4G networks?

    <p>Improved user experience with lower latency</p> Signup and view all the answers

    Which protocol is used for sending emails?

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

    What is a key characteristic of 5G technology?

    <p>Support for massive device connectivity</p> Signup and view all the answers

    What aspect of mobile communication is significantly improved from 3G to 4G?

    <p>Data speeds and browsing experience</p> Signup and view all the answers

    Which of the following applications is a major impact of 5G technology?

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

    What primary benefit does HSPA provide in mobile internet access?

    <p>Enhanced multimedia messaging capabilities</p> Signup and view all the answers

    What is the maximum speed supported by Category 5 unshielded twisted pair cable?

    <p>200 Mbps</p> Signup and view all the answers

    What is a major disadvantage of unshielded twisted pair cables?

    <p>Limited distance due to attenuation</p> Signup and view all the answers

    Which of the following is true about shielded twisted pair cables?

    <p>They are shielded to provide higher data transmission rates.</p> Signup and view all the answers

    What is the purpose of the copper mesh in coaxial cables?

    <p>To prevent electromagnetic interference</p> Signup and view all the answers

    Which type of transmission does baseband coaxial cable utilize?

    <p>A single signal at high speed</p> Signup and view all the answers

    What is a disadvantage of coaxial cables compared to twisted pair cables?

    <p>Higher installation cost</p> Signup and view all the answers

    What is the function of the middle core in fibre optic cables?

    <p>To transfer data using pulses of light</p> Signup and view all the answers

    Which statement is true about the installation of shielded twisted pair cables?

    <p>It is easy and straightforward.</p> Signup and view all the answers

    Study Notes

    Internet Addressing

    • Purpose:
      • Uniquely identify devices for communication
      • Enable efficient data packet routing
      • Facilitate network expansion and management

    Internet Addressing Schemes

    • IP Addressing:

      • IPv4 (Internet Protocol version 4):
        • 32-bit format, represented as four decimal numbers (e.g., 192.168.1.1)
        • Approximately 4.3 billion unique addresses, becoming exhausted due to the growth of internet-connected devices
      • IPv6 (Internet Protocol version 6):
        • 128-bit format, represented as eight groups of four hexadecimal digits (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334)
        • Vastly increased address space (approximately 340 undecillion addresses)
        • Improved routing efficiency and enhanced security features

    • MAC Addressing:

      • Unique identifiers assigned to network interfaces for communication at the data link layer
      • Format: 48-bit hexadecimal numbers (e.g., 00:1A:2B:3C:4D:5E)
      • Used for device identification within local networks, independent of IP addressing

    • Domain Name System (DNS):

      • Translates human-readable domain names (e.g., www.example.com) into IP addresses
      • Provides a hierarchical structure for addressing, making it easy for users to remember and navigate websites

    Email

    • Purpose: Exchange digital messages over the internet, including text, attachments, images, etc.

    Email Protocols

    • SMTP (Simple Mail Transfer Protocol):
      • Sends emails from a client to a server or between servers
    • POP3 (Post Office Protocol version 3):
      • Downloads emails from a server to a client
    • IMAP (Internet Message Access Protocol):
      • Accesses emails on a server from multiple clients, keeping them synchronized

    Email Sections

    • To: The recipient's email address
    • From: The sender's email address
    • Subject: A brief summary of the email's content
    • Body: The main content of the email
    • Attachments: Files attached to the email
    • CC (Carbon Copy): Copies the email to additional recipients
    • BCC (Blind Carbon Copy): Copies the email to additional recipients without disclosing their addresses to other recipients

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    IT Question and Answer-2024.docx

    Description

    This quiz covers key concepts of Internet addressing, including IP and MAC addressing schemes. You'll explore the differences between IPv4 and IPv6, and learn about their formats, implications for network management, and the challenges of address exhaustion. Test your knowledge on the fundamentals of unique device identification for effective communication in networking.

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