Tech+ Lesson

IP, DNS, and DHCP Basics for Tech+

Last updated: 6/10/2026

Short answer

Tech+ wants simple recognition of these core terms. IP address - A numeric address used to identify a device on a network. DHCP - A service that automatically assigns IP addresses to devices. DNS - A service that translates names (like websites) into IP addresses. Simple scenario logic: - Device can't get online and has no IP -> DHCP issue (at high level). - Website name doesn't resolve but internet works -> DNS issue (at high level). Out of scope: manual IP configuration steps, DNS record types, subnet masks/CIDR math.

Why it appears on the exam

This lesson supports FC0-U71 2.0 on CompTIA Tech+ FC0-U71. The public page gives the basic concept for free; the app adds tracking, quizzes, and weak-area practice.

Key concepts

Concept 1

IP, DNS, and DHCP Basics

Tech+ wants simple recognition of these core terms. IP address - A numeric address used to identify a device on a network. DHCP - A service that automatically assigns IP addresses to devices. DNS - A service that translates names (like websites) into IP addresses. Simple scenario logic: - Device can't get online and has no IP -> DHCP issue (at high level). - Website name doesn't resolve but internet works -> DNS issue (at high level). Out of scope: manual IP configuration steps, DNS record types, subnet masks/CIDR math.

Example

Tech+ wants simple recognition of these core terms.

Concept 2

How to recognize it on Tech+

On FC0-U71, stay at beginner IT depth: identify when the question is asking about IP, DNS, and DHCP Basics, then choose the basic concept or support action that matches the situation. Do not jump into advanced vendor administration unless the prompt clearly gives that scope.

Sample questions

Select an answer to reveal the explanation. For tracked practice and weak-area review, use the Cultiv8 app.

Q1.A help desk trainee sees this detail: Tech+ wants simple recognition of these core terms. Which Tech+ concept does it point to?

Q2.What is the safest beginner-level interpretation of this Tech+ topic?

Q3.What is the best exam approach for IP, DNS, and DHCP Basics?

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