IP Address Assignment Methods
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Questions and Answers

What is the primary advantage of manual IP address assignment?

  • It eliminates the need for a network administrator
  • It allows for greater control over IP address assignment (correct)
  • It ensures that IP addresses are assigned automatically
  • It reduces the risk of IP address duplication

    • What is the main purpose of IPv6?

  • To make IP addresses shorter
  • To replace IPv4 with a newer version
  • To reduce the number of Internet addresses
  • To fulfill the need for more Internet addresses (correct)

    • What is the number of unique addresses possible in IPv6?

  • More than 4 billion addresses
  • More than 1 billion addresses
  • More than 340 undecillion addresses (correct)
  • More than 1 trillion addresses

    • What is the duration of an IP address assignment in automatic assignment?

    <p>For a negotiated lease duration</p> Signup and view all the answers

    What is the size of an IPv4 address?

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

    What is the percentage of Internet traffic carried by IPv4?

    <p>94%</p> Signup and view all the answers

    What is the condition for the number of addresses in each subnetwork, according to subnetting?

    <p>It should be a power of 2</p> Signup and view all the answers

    What is the formula used to calculate the prefix length for the block?

    <p>n = 32 - log2 N</p> Signup and view all the answers

    What is the purpose of ensuring the starting address in each subnetwork is divisible by the number of addresses in that subnetwork?

    <p>To ensure efficient routing of packets</p> Signup and view all the answers

    What is the reason for the growing demand for IP addresses?

    <p>Organizations want connection to the Internet</p> Signup and view all the answers

    What is the relationship between the prefix length and the number of addresses granted to the organization?

    <p>The prefix length is inversely proportional to the number of addresses</p> Signup and view all the answers

    What is the hierarchical structure of IP addresses designed with?

    <p>Two levels of hierarchy</p> Signup and view all the answers

    What is the primary purpose of including the prefix length in an address in classless addressing?

    <p>To find the block of the address</p> Signup and view all the answers

    What is the significance of the '255' address in an IP address?

    <p>It is always assigned to a broadcast address</p> Signup and view all the answers

    What is the relationship between the prefix length and the number of 1s in the subnet mask?

    <p>The prefix length is equal to the number of 1s in the subnet mask</p> Signup and view all the answers

    What information can be extracted from an address in slash notation (CIDR)?

    <p>The first address, the number of addresses, and the last address</p> Signup and view all the answers

    What is the significance of the '0' address in an IP address?

    <p>It is always assigned to a network address</p> Signup and view all the answers

    What is the purpose of the subnet mask in an IP address?

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

    What can be compared to sending mail to a P.O. box?

    <p>Connecting to the internet using a public IP address</p> Signup and view all the answers

    What enables devices on the same network to interact without needing to connect to the internet?

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

    Why is it difficult for an external host or user to establish a connection to your home network?

    <p>Because of the private IP address</p> Signup and view all the answers

    What is the scope of a private IP address?

    <p>Local to the present network</p> Signup and view all the answers

    Who creates private IP addresses?

    <p>Local Network Operator</p> Signup and view all the answers

    What is the purpose of a private IP address?

    <p>To communicate within the network</p> Signup and view all the answers

    What is required to define the range of addresses in subnetting?

    <p>First address of the subnet and the subnet mask</p> Signup and view all the answers

    What is the purpose of a public IP address assigned by an ISP?

    <p>To access the internet directly using a router's public IP</p> Signup and view all the answers

    What operation is applied to the address and the subnet mask to find the subnetwork address?

    <p>AND operation</p> Signup and view all the answers

    What is the result of applying the AND operation on the address 200.45.34.56 and the subnet mask 255.255.240.0?

    <p>11001000 00101101 00100000 00000000</p> Signup and view all the answers

    What is the difference between a subnet mask and a supernet mask?

    <p>A subnet mask is used for subnetting, while a supernet mask is used for supernetting</p> Signup and view all the answers

    What is the purpose of a private IP address?

    <p>To conceal personal devices from the internet</p> Signup and view all the answers

    Study Notes

    IP Addresses

    • Every computer that communicates over the Internet is assigned an IP address, which can be assigned manually or automatically.
    • Manual IP address assignment is manageable for small networks but requires careful checks to avoid duplication.
    • Automatic assignment involves derivation from a range of addresses with a negotiated lease duration.

    IP Address Structure

    • Each IP address has two parts: the network part identifying a network and the host part identifying a node in a network.

    IPv4 and IPv6

    • IPv4 is a 32-bit IP address, widely used to identify devices on a network, and carries 94% of Internet traffic.
    • IPv6 is a 128-bit IP address, designed to fulfill the need for more Internet addresses, and allows for 340 undecillion unique addresses.
    • IPv6 is also called IPng (Internet Protocol next generation).

    Subnetting

    • Subnetting is a solution to the depletion of network addresses available for assignment to organizations.
    • The subnetworks in a network should be carefully designed to enable the routing of packets.
    • The number of addresses in each subnetwork should be a power of 2, and the prefix length for each subnetwork should be calculated using a specific formula.

    Masking Concepts

    • A subnet mask is a 32-bit number created by setting host bits to all 0s and setting network bits to all 1s.
    • The subnet mask separates the IP address into the network and host addresses.

    Extracting Block Information

    • An address in slash notation (CIDR) contains all information about the block, including the first address, the number of addresses, and the last address.

    Public and Private Network Addresses

    • A private IP address is assigned to a device by a network router and is used to communicate within the network.
    • Private IP addresses enable devices on the same network to interact without needing to connect to the internet.
    • Private IPs assist in strengthening security within a specified network by making it more difficult for an external host to establish a connection.
    • A public IP address is assigned by an internet service provider and is used to access the internet directly.

    Supernetting

    • Supernetting involves combining multiple networks into a single larger network.
    • In supernetting, we need the first address of the supernet and the supernet mask to define the range of addresses.

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    Description

    Learn about the two methods of assigning IP addresses: manual and automatic assignment. Discover the advantages and characteristics of each method.

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