Network + IP Addressing Concepts Flashcards
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Questions and Answers

What is the purpose of Public IP addresses?

  • To assign IP addresses based on MAC addresses
  • To connect devices directly to the Internet (correct)
  • To license through IANA (correct)
  • To create private networks

    • What is the range for Public IP Class A?

    1.x.x.x to 126.x.x.x

    How many available hosts are there per network in Public IP Class B?

    65,000

    Private IP address range for Class C is ___

    <p>192.168.0.0 - 192.168.255.255</p> Signup and view all the answers

    What does the address 255.255.255.255 represent?

    <p>Broadcast address</p> Signup and view all the answers

    What does the address 0.0.0.0 indicate?

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

    What is 127.0.0.1 used for?

    <p>PC network interface validation</p> Signup and view all the answers

    What is the purpose of a Default Gateway?

    <p>To enable external communication for hosts</p> Signup and view all the answers

    Define Virtual IP.

    <p>A single IP address shared by multiple systems</p> Signup and view all the answers

    What is a Subnet Mask used for?

    <p>To divide the IP address into network ID and host ID</p> Signup and view all the answers

    What is Classful Subnetting?

    <p>A method that uses whole octets to identify the Network ID</p> Signup and view all the answers

    What differentiates Classless Subnetting from Classful Subnetting?

    <p>Allows subnet masks to flexibly use bits from preceding octets</p> Signup and view all the answers

    What does DHCP stand for?

    <p>Dynamic Host Configuration Protocol</p> Signup and view all the answers

    What is the function of DHCPv6?

    <p>Handles dynamic address assignment for IPv6</p> Signup and view all the answers

    Define a Static IP address.

    <p>An IP address that is manually assigned and constant until changed</p> Signup and view all the answers

    What does APIPA stand for?

    <p>Automatic Private IP Addressing</p> Signup and view all the answers

    What is EUI-64?

    <p>A standard for a 64-bit extended unique identifier used in IPv6</p> Signup and view all the answers

    Study Notes

    Public vs Private IP Addresses

    • Public IP addresses are issued under IANA in Classes A, B, and C.
    • Private IP addresses allow for the creation of billions of hosts from a single public IP, used for devices like smart appliances.

    Public IP Address Class A

    • Address range: 1.x.x.x to 126.x.x.x.
    • Offers 126 networks with each accommodating up to 16 million hosts.

    Public IP Address Class B

    • Address range: 128.x.x.x to 191.255.x.x.
    • Supports 16,000 networks with 65,000 hosts per network.

    Public IP Address Class C

    • Address range: 192.0.0.x to 223.255.255.x.
    • Allows for 2 million networks, each with up to 254 hosts.

    Private IP Address Ranges

    • Class A: 10.0.0.0 - 10.255.255.255.
    • Class B: 172.16.0.0 - 172.31.255.255.
    • Class C: 192.168.0.0 - 192.168.255.255.

    Special Addresses

    • Broadcast Address: 255.255.255.255, used for sending data to all nodes in a network.
    • Unassigned Address: 0.0.0.0, indicates a non-assigned IP.
    • Loopback Address: 127.0.0.1 to 127.255.255.254, used for network interface testing.
    • APIPA Range: 169.254.0.1 to 169.254.255.255, automatically assigned when DHCP fails.

    Networking Components

    • Default Gateway: Router’s address configured to enable external communication for hosts.
    • Virtual IP: A single IP address shared among multiple systems.

    Subnetting

    • Subnet Mask: Divides an IP into network and host IDs.
    • Classful Subnetting: Uses whole octets for network ID. Classes A (255.0.0.0), B (255.255.0.0), C (255.255.255.0) defined for addressing.
    • Classless Subnetting: Allows flexible subnetting by borrowing bits from other octets, implementing CIDR.

    DHCP Protocols

    • DHCP: Dynamic Host Configuration Protocol, automatically assigns IP addresses and TCP/IP settings.
    • DHCPv6: Manages dynamic IPv6 address assignment, using ports 546 for listening and 547 for responding.

    IP Address Types

    • Static IP Address: Manually assigned and remains unchanged unless altered.
    • APIPA: Automatically assigns a 169.254.x.x address when no DHCP server responds.

    EUI-64

    • Extended Unique Identifier, a 64-bit standard for IPv6, derived from a 48-bit MAC address with modifications for use in IP addressing.

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    Description

    This quiz focuses on the key concepts of public and private IP addresses, including their distinctions and classifications. It serves as a helpful study tool for understanding IP addressing within network fundamentals. Perfect for learners preparing for networking certifications.

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