ITPEC FE Morning April 2021 Question 33

Which of the following is an appropriate explanation of DHCP?

a)It is a protocol for accessing a directory service.b)It is a protocol for automatically assigning an IP address.c)It is a protocol for converting a private IP address to a global IP address.d)It is a protocol for forwarding an e-mail.

Explanation

Automatically assigning an IP address — DHCP gives a joining device its network settings without manual configuration.

With DHCP (Dynamic Host Configuration Protocol), a device that joins the network broadcasts a request, and a DHCP server leases it an IP address from a pool, together with the subnet mask, default gateway and DNS server. When the lease ends the address returns to the pool for reuse.

Answer (b)

Why not others:

•(a) — accessing a directory service is LDAP (Lightweight Directory Access Protocol)
•(c) — converting private IP addresses to global ones is NAT (Network Address Translation)
•(d) — forwarding e-mail between servers is SMTP (Simple Mail Transfer Protocol)

Key rule: DHCP configures hosts, DNS resolves names, NAT translates addresses and LDAP looks up directories; match the protocol to the one job it does.

Networks · AI-written, may contain errors

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