- A
Migrate the entire portal to a public cloud provider using a lift-and-shift approach, and set up a VPN connection for security.
Why wrong: This solution is costly and time-consuming (VPN setup, migration) and exceeds the budget and timeline constraints. It also increases security complexity and compliance risks.
- B
Upgrade the existing VM by adding more RAM and using a faster HDD with a larger cache.
Why wrong: Adding more RAM may help with memory pressure, but does not address the high CPU usage or the disk I/O bottleneck (HDD still slow). Also, increasing RAM may require downtime and is not a full solution.
- C
Create two separate VMs: one for the web server with 2 vCPUs and 8 GB RAM, and one for the database with 2 vCPUs and 8 GB RAM. Replace the HDD with an SSD on both VMs.
Separating the roles reduces resource contention, and SSDs dramatically improve disk I/O. This can be done quickly with existing hardware and budget, and keeps the environment on-premises for security and compliance.
- D
Implement IIS compression and enable SQL Server data compression to reduce CPU and I/O load.
Why wrong: Compression can reduce network and disk usage, but it actually increases CPU usage, which is already a bottleneck. This does not address the root cause and may worsen performance.
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. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
You are the project manager for a mid-sized company that provides an online customer portal. The portal is hosted on a single virtual machine (VM) in the company's on-premises data center with 4 vCPUs, 16 GB RAM, and a 500 GB HDD. The VM runs Windows Server 2019 and hosts both the web server (IIS) and the database (SQL Server Express). Users have been reporting slow performance, especially during peak hours (10 AM - 2 PM). The system administrator notes that CPU usage spikes to 95% during those times, and disk I/O latency averages 50 ms. The company's budget is limited, and they want a cost-effective solution that can be implemented within two weeks. The project sponsor suggests migrating to the cloud, but the IT director is concerned about security and compliance. The company has no existing cloud infrastructure or virtual private network (VPN) to the cloud. You need to propose a solution that improves performance without incurring high costs or long delays. Which of the following is the BEST course of action?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Create two separate VMs: one for the web server with 2 vCPUs and 8 GB RAM, and one for the database with 2 vCPUs and 8 GB RAM. Replace the HDD with an SSD on both VMs.
Option C is correct because separating the web server and database onto two VMs eliminates resource contention between IIS and SQL Server Express, which is the root cause of the CPU and I/O spikes. Replacing the HDD with SSDs reduces disk I/O latency from 50 ms to under 1 ms, directly addressing the performance bottleneck. This solution is cost-effective and can be implemented within two weeks using existing on-premises hardware, without requiring cloud migration or VPN setup.
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.
- ✗
Migrate the entire portal to a public cloud provider using a lift-and-shift approach, and set up a VPN connection for security.
Why it's wrong here
This solution is costly and time-consuming (VPN setup, migration) and exceeds the budget and timeline constraints. It also increases security complexity and compliance risks.
- ✗
Upgrade the existing VM by adding more RAM and using a faster HDD with a larger cache.
Why it's wrong here
Adding more RAM may help with memory pressure, but does not address the high CPU usage or the disk I/O bottleneck (HDD still slow). Also, increasing RAM may require downtime and is not a full solution.
- ✓
Create two separate VMs: one for the web server with 2 vCPUs and 8 GB RAM, and one for the database with 2 vCPUs and 8 GB RAM. Replace the HDD with an SSD on both VMs.
Why this is correct
Separating the roles reduces resource contention, and SSDs dramatically improve disk I/O. This can be done quickly with existing hardware and budget, and keeps the environment on-premises for security and compliance.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Implement IIS compression and enable SQL Server data compression to reduce CPU and I/O load.
Why it's wrong here
Compression can reduce network and disk usage, but it actually increases CPU usage, which is already a bottleneck. This does not address the root cause and may worsen performance.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may choose Option D (compression) thinking it reduces load, but they overlook that compression adds CPU overhead and does not fix the core issue of resource contention between IIS and SQL Server on a single VM.
Detailed technical explanation
How to think about this question
SQL Server Express is limited to 1 GB of RAM and one socket or 4 cores, but when co-located with IIS on the same VM, both services compete for the same vCPUs and disk I/O queue, causing high latency. SSDs use NAND flash memory with no seek time, reducing average I/O latency from 50 ms (HDD) to under 0.1 ms, which is critical for database transactions. Separating services onto dedicated VMs also allows each to use its own CPU and memory allocation, preventing IIS worker processes from starving SQL Server of resources during peak hours.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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.
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FAQ
Questions learners often ask
What does this PK0-005 question test?
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: Create two separate VMs: one for the web server with 2 vCPUs and 8 GB RAM, and one for the database with 2 vCPUs and 8 GB RAM. Replace the HDD with an SSD on both VMs. — Option C is correct because separating the web server and database onto two VMs eliminates resource contention between IIS and SQL Server Express, which is the root cause of the CPU and I/O spikes. Replacing the HDD with SSDs reduces disk I/O latency from 50 ms to under 1 ms, directly addressing the performance bottleneck. This solution is cost-effective and can be implemented within two weeks using existing on-premises hardware, without requiring cloud migration or VPN setup.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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.
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