What does DHCP do on a network?

What does DHCP do on a network?

• A. Dynamic Host Configuration Protocol automatically assigns IP addresses and network configuration to devices joining a network.
• B. DHCP translates domain names to IP addresses.
• C. DHCP blocks unauthorized devices.
• D. DHCP provides DNS service.

Answer: (A)

DHCP automatically assigns IP addresses and network configuration to devices joining a network. When a device connects, it asks a DHCP server for an IP address from a defined pool. The server replies with an available IP and other settings the device needs to communicate—like the subnet mask, the default gateway, and DNS server addresses. This makes it easy to set up devices without manual configuration and helps prevent IP address conflicts because addresses are leased and tracked centrally. Some networks use DHCP to also provide DNS server addresses, but the service DHCP offers is not itself DNS resolution. The option about translating domain names to IPs describes DNS, which is a separate function. The idea of blocking unauthorized devices refers to access-control features, not DHCP.

DHCP automatically assigns IP addresses and network configuration to devices joining a network. When a device connects, it asks a DHCP server for an IP address from a defined pool. The server replies with an available IP and other settings the device needs to communicate—like the subnet mask, the default gateway, and DNS server addresses. This makes it easy to set up devices without manual configuration and helps prevent IP address conflicts because addresses are leased and tracked centrally.

Some networks use DHCP to also provide DNS server addresses, but the service DHCP offers is not itself DNS resolution. The option about translating domain names to IPs describes DNS, which is a separate function. The idea of blocking unauthorized devices refers to access-control features, not DHCP.