Automatic Private IP Addressing (APIPA) Feature Quiz

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Questions and Answers

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

To speed up the network by reducing unwanted broadcasting
To replace the main DHCP server with dynamically allocated addresses
To provide a fallback for DHCP when it stops working (correct)
To regulate the communication and check the status of the main DHCP server

What is the IP address range for Automatic Private IP Addressing (APIPA)?

169.254 (correct)
10.0
192.168
172.16

How does APIPA confirm that an address isn't currently in use?

By using ARP (Address Resolution Protocol) (correct)
By regularly broadcasting to check for network gateway availability
By replacing the main DHCP server with dynamically allocated addresses
By checking the response and status of the main DHCP server in a specific period of time

What is a disadvantage of using APIPA IP addresses?

It can slow down your network (D) Signup and view all the answers

How frequently does APIPA check for the presence of a DHCP server?

Every five minutes (A) Signup and view all the answers

What happens if APIPA detects a DHCP server on the network?

It stops and lets the DHCP server replace APIPA with dynamically allocated addresses (D) Signup and view all the answers

Study Notes

Automatic Private IP Addressing (APIPA)

The purpose of APIPA is to allow a device to automatically assign itself an IP address when a DHCP server is not available.

APIPA Address Range

The IP address range for APIPA is 169.254.0.0 to 169.254.255.255.

Address Confirmation

APIPA confirms that an address isn't currently in use by sending a gratuitous ARP (Address Resolution Protocol) request.

Disadvantages of APIPA

A disadvantage of using APIPA IP addresses is that they are not routable, meaning they cannot be accessed from outside the local network.

APIPA and DHCP Server Presence

APIPA checks for the presence of a DHCP server every 5 minutes.
If APIPA detects a DHCP server on the network, it will release its APIPA address and obtain a new IP address from the DHCP server.

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Description

Test your knowledge about Automatic Private IP Addressing (APIPA), a feature in operating systems that allows computers to self-configure an IP address and subnet mask when their DHCP server is unreachable. This quiz covers the IP address range for APIPA, its function in checking for the presence of a DHCP server, and its behavior when a DHCP server is detected.