The answer is the number of ports and Power over Ethernet (PoE) support. These two factors are critical when selecting network switches because the number of ports defines the maximum devices that can be physically connected, directly impacting network capacity and scalability, while PoE support determines whether the switch can deliver electrical power to devices like IP phones and security cameras over the same Ethernet cable, eliminating the need for separate power outlets. On the CompTIA Project+ PK0-005 exam, this question tests your ability to identify fundamental hardware requirements during a network upgrade project; a common trap is choosing “cost” or “brand” instead of these technical specifications. Remember that ports handle connectivity, and PoE handles power delivery—think of them as the “how many” and “how powered” decisions. A simple memory tip: “Ports for plugging, PoE for powering.”
PK0-005 Practice Question: Basics of IT Infrastructure and IT Project Management
This PK0-005 practice question tests your understanding of basics of it infrastructure and it project management. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A project to upgrade network switches. Which TWO factors should the project manager consider when selecting switches? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
PoE support
PoE (Power over Ethernet) support is critical when upgrading network switches because it allows the switch to deliver electrical power to connected devices—such as IP phones, wireless access points, and security cameras—over the same Ethernet cable used for data. Without PoE, each powered device would require a separate power source, increasing installation complexity and cost. The number of ports directly determines how many devices can be physically connected to the switch, making it a fundamental capacity requirement for any network upgrade.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Switch color
Why it's wrong here
Color is aesthetic and does not affect functionality.
✓
PoE support
Why this is correct
Power over Ethernet is essential for powering devices like VoIP phones and wireless APs.
Related concept
Read the scenario before looking for a memorised answer.
✓
Number of ports
Why this is correct
Port count must satisfy connectivity requirements for all devices.
Related concept
Read the scenario before looking for a memorised answer.
✗
Warranty period
Why it's wrong here
Warranty is important but not a primary selection factor compared to technical specifications.
✗
Brand name
Why it's wrong here
Brand should not be prioritized over technical requirements and cost.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between technical requirements and non-technical attributes, so the trap here is that candidates may mistake warranty period or brand name as critical selection factors, when in reality they are secondary to functional specifications like PoE support and port count.
Detailed technical explanation
How to think about this question
PoE support is defined by IEEE standards: 802.3af provides up to 15.4W per port, 802.3at (PoE+) provides up to 30W, and 802.3bt (PoE++) provides up to 60W or 100W. When selecting switches, the project manager must also consider the total PoE budget (the aggregate power the switch can supply across all ports) to ensure it meets the power demands of all connected devices simultaneously. For port count, it is important to account for future growth and redundancy—for example, a 48-port switch might be chosen even if only 30 devices are currently needed, to allow for expansion without replacing hardware.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the PK0-005 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Basics of IT Infrastructure and IT Project Management — This question tests Basics of IT Infrastructure and IT Project Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: PoE support — PoE (Power over Ethernet) support is critical when upgrading network switches because it allows the switch to deliver electrical power to connected devices—such as IP phones, wireless access points, and security cameras—over the same Ethernet cable used for data. Without PoE, each powered device would require a separate power source, increasing installation complexity and cost. The number of ports directly determines how many devices can be physically connected to the switch, making it a fundamental capacity requirement for any network upgrade.
What should I do if I get this PK0-005 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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