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Objective 2.5

220-1201

Compare and contrast common networking hardware devices.

Objective 2.5 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.

2-5Networking

A network technician configures a small office router's DHCP scope so each connected laptop receives an IP address for a limited time, which must be renewed before it expires. Which DHCP allocation mechanism does this describe?

Dynamic allocationCorrect · your answerCorrect: dynamic allocation is time-limited and requires renewal.
Automatic allocationAutomatic allocation assigns a permanent address to the client, not a time-limited lease.
Manual allocationManual allocation is when an administrator selects the address to assign, not a lease scheme.
Static allocationStatic allocation is a common industry term but is not one of the three DHCP allocation mechanisms defined for this protocol.

Correct.

Checked against learn.microsoft.com, July 2026

Concept

DHCP supports three IP address allocation mechanisms: automatic, dynamic, and manual, each defined by how long the assigned address remains valid.

Why A

Dynamic allocation assigns a client an IP address for a limited period of time (or until relinquished), which matches the lease-and-renew behavior described.

Source

In "dynamic allocation", DHCP assigns an IP address to a client for a limited period of time (or until the client explicitly relinquishes the address).

IETF RFC 2131: DHCP, checked July 2026
#dhcp#ip addressing#networking hardware

Now you: objective 2.5 questions

No account needed. The explanation opens when you answer.

Sample question 1 of 3

2-5Networking

An IT administrator wants a networked printer to always receive the same IP address from the DHCP server, based on an address value the administrator specifies for that specific device. Which DHCP allocation mechanism does this describe?

Sample question 2 of 3

2-5Networking

An employee's workstation is joined to an Active Directory domain and configured with the IP address of a DNS server. When the employee logs in, what does the DNS Client service query the DNS server to accomplish first?

Sample question 3 of 3

2-5Networking

A small office network's router acts as both the local DHCP server and the default gateway. When a client requests a website whose hostname is not already stored locally, the router sends that query on to an external DNS server. Which DNS feature is being used?

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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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