PK0-005 Practice Question: Basics of IT Infrastructure and IT Project Management
A project manager is deploying a new web application to a cloud environment. The application requires high availability and automatic scaling based on traffic. Which IT infrastructure component should the project manager use to meet these requirements?
⚠ Common exam trap
Many candidates confuse DNS round-robin with true load balancing, but DNS lacks health checks and cannot automatically reroute traffic away from failed instances, making it unsuitable for high availability and automatic scaling.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Load balancer
A load balancer distributes incoming traffic across multiple instances of the web application, enabling high availability by rerouting traffic if an instance fails, and automatic scaling by integrating with cloud auto-scaling groups to add or remove instances based on demand. This directly meets the requirements for both high availability and automatic scaling.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Load balancer
Why this is correct
A load balancer distributes incoming traffic across multiple servers and can be integrated with auto-scaling to handle varying loads.
- ✗
Firewall
Why it's wrong here
A firewall is a security device that filters traffic but does not provide load balancing or auto-scaling.
- ✗
DNS server
Why it's wrong here
DNS servers resolve domain names to IP addresses but do not manage traffic distribution or scaling.
- ✗
VPN concentrator
Why it's wrong here
A VPN concentrator allows remote secure connections but does not distribute traffic or scale.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PK0-005 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PK0-005 exam.