Objective 2.3220-1201

2.3 Summarize services provided by networked hosts.

Objective 2.3 sits in Networking, which carries 23% of the A+ Core 1 exam. The questions below are original, written from the official objective title above, and each explanation cites the CompTIA page it rests on.

Objective title verbatim from the official objectives. CompTIA exam page

A worked example

Shown solved, with the whole explanation open: this is what every question here carries.

NetworkingEasy

What is the primary purpose of a DHCP server in a network?

Correct.

The concept

DHCP is a client/server protocol that automatically provides a host with its IP address and related TCP/IP configuration, removing the need for manual setup on each device.

Why this answer

Automatically assigning addresses and configuration data (subnet mask, default gateway, DNS servers) is the defined role of a DHCP server.

  • This is the DHCP server's function of leasing addresses and options to clients.
  • BThis describes name resolution, which is handled by DNS, not DHCP.
  • CThis describes a firewall's traffic-filtering role, unrelated to address leasing.
  • DThis describes a VPN or encryption service, not IP configuration delivery.
Read the sourceMicrosoft Learn: Windows Server DHCP
Verified against datatracker.ietf.org · 2026-07-27
dhcpnetworked-hostsrecall

Now you: objective 2.3 questions

No account needed. The explanation opens when you answer.

Sample question 1 of 3

NetworkingModerate

A help desk technician connects a new laptop to the office network. Without any manual configuration, the laptop receives a valid IP address, subnet mask, and default gateway within seconds. Which service most likely provided this configuration?

Sample question 2 of 3

NetworkingHard

A network administrator configures a DHCP scope but sets aside three specific addresses so that a departmental server always receives the same IP address rather than pulling from the general pool. Which DHCP database feature accomplishes this?

Sample question 3 of 3

NetworkingModerate

A retail chain's cash registers only need to communicate with an internal inventory server and never require direct access to the internet. According to address allocation guidance, these devices are best described as which type of host?

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Read the sources

These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.

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