Questions and Answers
How was IPv4 addressing previously performed?
It was performed by the IANA (Internet Assigned Numbers Authority).
How are IPv4 addresses currently deployed?
Private IP addresses with NAT (Network Address Translation) are currently deployed in the majority of enterprise networks as a workaround.
What is the valid host range for class A addresses?
The range is from 1.0.0.0 to 126.0.0.0 /8.
What is the valid host range for class B addresses?
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What is the valid host range for class C addresses?
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What are class D addresses used for?
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What is the valid host range for class D addresses?
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What are class E addresses used for?
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What is the valid host range for class E addresses?
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What are the private IP address ranges for class A, B, and C? (Select all that apply)
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Study Notes
IPv4 Addressing Overview
- IPv4 addressing is managed by the Internet Assigned Numbers Authority (IANA).
- Current deployment of IPv4 addresses predominantly uses private IP addresses with Network Address Translation (NAT).
Class A Addresses
- Valid host range: 1.0.0.0 to 126.0.0.0 with a subnet mask of /8.
- Designed for large networks, accommodates a significant number of hosts.
Class B Addresses
- Valid host range: 128.0.0.0 to 191.255.0.0 with a subnet mask of /16.
- Identified by the two high-order bits, which are always set as 1 0.
Class C Addresses
- Valid host range: 192.0.0.0 to 223.255.255.0 with a subnet mask of /24.
- Characterized by the three high-order bits set to 1 1 0, suitable for smaller networks.
Class D Addresses
- Utilized for multicast communications, allowing data to be sent to multiple hosts simultaneously.
- Valid network range: 224.0.0.0 to 239.255.255.255, with four high-order bits set to 1 1 1 0.
Class E Addresses
- Reserved for experimental purposes and future developments.
- Valid network range: 240.0.0.0 to 255.255.255.255.
Private IP Address Ranges
- Class A private range: 10.0.0.0 to 10.255.255.255.
- Class B private range: 172.16.0.0 to 172.31.255.255.
- Class C private range: 192.168.0.0 to 192.168.255.255.
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Description
This quiz provides an overview of IPv4 addressing, including the management by IANA and the different classes of IP addresses. It covers Class A, B, C, D, and E addresses, highlighting their valid host ranges, subnet masks, and specific uses. Test your knowledge on the specifics of IPv4 addressing!
