Classful IP Addressing Quiz

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Questions and Answers

Which class of IP addresses does the range 172.16.0.0 – 172.31.255.255 belong to?

  • Class B (correct)
  • Class D
  • Class C
  • Class A

Which organization reserves the predefined pool of addresses 169.254.0.0 through 169.254.255.255?

  • ICANN
  • IANA (correct)
  • ISO
  • IEEE

What is the purpose of Automatic Private IP Addressing (APIPA)?

  • To enable communication without a valid IP address (correct)
  • To provide IP addresses for private networks
  • To assign public IP addresses automatically
  • To reserve predefined pool of addresses

What is the address space division for Class D IP addresses?

<p>Not applicable (B)</p>
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What is the address range for Class C private IP addresses?

<p>192.168.0.0 – 192.168.255.255 (C)</p>
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What is the purpose of Class D IP addresses?

<p>Reserved for multicast groups (B)</p>
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What is the address range for Class B private IP addresses?

<p>172.16.0.0 – 172.31.255.255 (B)</p>
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Which operating systems offer Automatic Private IP Addressing (APIPA)?

<p>Windows 98, ME, 2000, XP, Vista, Windows Server 2003, Windows Server 2008 (B)</p>
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What is the purpose of IANA (Internet Assigned Numbers Authority) reserved addresses 169.254.0.0 through 169.254.255.255?

<p>For Automatic Private IP Addressing (APIPA) (A)</p>
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What is the structure of a Class C IP address?

<p>Network.Network.Network.Host (C)</p>
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Flashcards

IP address range 172.16.0.0 – 172.31.255.255

Class B

Who reserves 169.254.0.0 - 169.254.255.255?

IANA (Internet Assigned Numbers Authority).

Purpose of APIPA?

To enable communication when a device fails to obtain a valid IP address automatically.

Purpose of Class D IP addresses?

Reserved for multicast groups.

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Class C private IP range?

192.168.0.0 – 192.168.255.255

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Class B private IP range?

172.16.0.0 – 172.31.255.255

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Purpose of IANA addresses 169.254.0.0 - 169.254.255.255?

For Automatic Private IP Addressing (APIPA).

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Structure of a Class C IP address?

Network.Network.Network.Host

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Study Notes

IP Address Classes and Private IP Addresses

  • The range 172.16.0.0 – 172.31.255.255 belongs to the Class B private IP address range.

APIPA (Automatic Private IP Addressing)

  • APIPA is used to automatically assign IP addresses to devices when they cannot obtain an IP address from a DHCP server.
  • APIPA is offered by Windows and other operating systems.

Class D IP Addresses

  • Class D IP addresses are used for multicasting.
  • The address space division for Class D IP addresses is 224.0.0.0 to 239.255.255.255.

Private IP Address Ranges

  • Class C private IP addresses range from 192.0.0.0 to 192.255.255.255.
  • Class B private IP addresses range from 172.16.0.0 to 172.31.255.255.

IANA Reserved Addresses

  • The organization that reserves the predefined pool of addresses 169.254.0.0 through 169.254.255.255 is IANA (Internet Assigned Numbers Authority).
  • The purpose of IANA reserved addresses 169.254.0.0 through 169.254.255.255 is for Automatic Private IP Addressing (APIPA).

IP Address Structure

  • The structure of a Class C IP address consists of a 24-bit network part and an 8-bit host part.

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