CompTIA Network+ Practice Test

What is the primary purpose of DHCP?

1. Automated configuration of IP addresses

2. File transfer without authentication

3. Securing data sent over the internet

4. Sending email from one server to another

The correct answer is: Automated configuration of IP addresses

The primary purpose of Dynamic Host Configuration Protocol (DHCP) is to automate the configuration of IP addresses for devices on a network. This protocol simplifies the management of IP address distribution by dynamically assigning IP addresses from a pre-defined range, known as a scope, to devices as they join the network. This ensures that each device receives a unique IP address without the need for manual configuration, which can be time-consuming and prone to errors. By automating this process, DHCP reduces the chances of IP address conflicts and makes it easier to manage a network, especially as the number of devices increases. When a device connects to the network, it sends a request to a DHCP server, which responds with an available IP address and other essential network configuration details, such as the subnet mask and default gateway. In contrast, the other options pertain to different functions not related to DHCP. File transfer without authentication is typically managed by protocols such as FTP or SFTP, while securing data sent over the internet is the role of encryption protocols like SSL/TLS. Sending email involves protocols like SMTP, which focus on the transfer of email messages between servers. Thus, the distinct function of DHCP emphasizes its critical role in IP address management within network infrastructure.