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Network Essential Version C (LE) Practice Test

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A newly purchased client laptop connects to a network using dynamic addressing. Which IP address does the laptop use as the destination address when requesting a dynamically assigned address?
Correct Answer:
255.255.255.255
Explanation:
When a client wants an IP address dynamically, it sends a DHCPDISCOVER message on the local network. Since the client has no IP yet, this request is sent as a broadcast so every device on the LAN can hear it. The destination IP used for that initial DHCP request is 255.255.255.255, the local broadcast address. This allows a DHCP server on the network to see the request and respond with an offer. 0.0.0.0 is the client’s temporary source address before it has an IP, not the destination. 192.168.1.1 is just a common router address, not the broadcast target for DHCP discovery. 255.255.0.0 is a subnet broadcast address, which DHCP does not use for the initial discovery.

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