Exam Code: JK0-U21
Exam Name: CompTIA Strata Fundamentals of PC Technology Exam
Certification Provider: CompTIA
Corresponding Certification: CompTIA Strata

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Name: CompTIA JK0-U21 Exam
Brand: CompTIA
SKU: JK0-U21
Price: 69.00 USD
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Updated: Aug 28, 2026

No. of Questions: 241 Questions & Answers with Testing Engine

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CompTIA JK0-U21 Exam Overview:

Certification Vendor:	CompTIA
Exam Name:	CompTIA Strata Fundamentals of PC Technology
Exam Number:	JK0-U21
Passing Score:	70%
Exam Duration:	60 minutes
Available Languages:	English
Exam Format:	Multiple Choice
Exam Price:	$119 USD
Related Certifications:	CompTIA A+ CompTIA Security+ CompTIA Network+
Real Exam Qty:	35–70
Certificate Validity Period:	Valid for life (no expiration)
Recommended Training:	CompTIA e-Learning CompTIA Official Study Guide
Exam Registration:	CompTIA Official Registration Pearson VUE Scheduling
Sample Questions:	CompTIA JK0-U21 Sample Questions
Exam Way:	In-person at Pearson VUE centers / Online proctored
Pre Condition:	No formal prerequisites; basic computer knowledge recommended
Official Syllabus URL:	https://www.comptia.org/certifications/retired-certifications/strata

CompTIA JK0-U21 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Security & Green IT	10%	- Basic physical and digital security - Energy efficiency and disposal practices
Topic 2: Operating Systems & Software	20%	- Device drivers and updates - Application software basics - OS installation and upgrades
Topic 3: Compatibility & Installation	25%	- Firmware/BIOS/UEFI settings - Hardware compatibility standards - Component installation and configuration
Topic 4: Maintenance & Troubleshooting	15%	- Preventive maintenance procedures - Common hardware problems and solutions - Safety and environmental guidelines
Topic 5: PC Hardware Components	30%	- Peripheral devices 1. Input/output devices, display, audio 2. Connectivity ports and cables - Internal components 1. Power supply, expansion cards, cooling systems 2. Motherboard, CPU, memory, storage devices

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