PK0-005 Practice Question: Basics of IT Infrastructure and IT Project Management
An IT project manager is leading a project to upgrade the network infrastructure in a branch office. The project sponsor is concerned about the impact of network downtime on daily operations. The project manager needs to ensure that network availability is maintained during the upgrade. Which of the following should the project manager implement to minimize downtime?
⚠ Common exam trap
The trap here is assuming that scheduling work during off-peak hours or notifying users eliminates downtime, when in fact only redundancy and failover can maintain availability.
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
✓
Implement redundant network components and failover mechanisms.
Redundant network components with failover mechanisms provide continuous availability by allowing traffic to switch to backup paths or devices during upgrades or failures. This meets the sponsor's requirement to minimize downtime. Other options either reduce the impact of downtime or communicate it, but do not eliminate it, and thus do not satisfy the need for high availability during the infrastructure upgrade.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Schedule the upgrade in phases across multiple weekends.
Why it's wrong here
Phasing the upgrade over multiple weekends spreads the work but still requires downtime for each phase. Users will experience outages each weekend, which may be unacceptable for a branch office with continuous operations. This approach does not provide high availability and can prolong the project, increasing risk and cost without solving the core availability issue.
- ✗
Perform the upgrade during off-peak hours.
Why it's wrong here
Performing the upgrade during off-peak hours reduces the impact on users but does not eliminate downtime. The network will still be unavailable during the upgrade window, which could affect critical overnight batch jobs or international users in different time zones. This approach is a scheduling tactic, not a high-availability solution, and does not meet the sponsor's requirement to maintain availability.
- ✗
Notify users well in advance about the planned downtime.
Why it's wrong here
Notifying users is a communication best practice but does not prevent downtime. It merely sets expectations. The sponsor's concern is about maintaining availability, not about being informed. This option fails to address the technical requirement and would leave the network unavailable during the upgrade, potentially disrupting business operations.
- ✓
Implement redundant network components and failover mechanisms.
Why this is correct
Implementing redundancy with failover ensures that if one component fails or is taken offline for upgrade, another takes over seamlessly, maintaining network availability. This directly addresses the sponsor's concern by minimizing or eliminating downtime. Redundancy can be achieved through redundant switches, routers, and links, combined with protocols like VRRP or HSRP for automatic failover.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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