PK0-005 Basics of IT Infrastructure and IT Project Management Practice Test 3 — 15 Questions

Question 1

Which TWO of the following are common causes of project delays in IT infrastructure projects? (Choose two.)

Accepted Answer

Unforeseen dependencies between tasks. Unforeseen dependencies between tasks (B) are a common cause of delays because IT infrastructure projects often involve complex interconnections—for example, a network upgrade may depend on a prior firewall rule change or a storage array reconfiguration. When these hidden dependencies are not mapped in the project schedule, a delay in one task cascades to dependent tasks, pushing the entire timeline. This is especially critical in infrastructure where hardware, software, and configuration tasks are tightly coupled.

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Successful integration testing

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Overestimating resource capacity

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Frequent status meetings

Question 2

A company is deploying a new VoIP system. Which network infrastructure component is most critical for ensuring voice quality?

Accepted Answer

Switch QoS settings. Voice quality over VoIP is highly sensitive to latency, jitter, and packet loss. Switch QoS settings (e.g., 802.1p/DSCP marking, strict priority queuing) ensure that voice traffic is prioritized over data traffic, preventing delays and dropped packets that degrade call quality. Without proper QoS, even high-bandwidth links will suffer from poor Mean Opinion Scores (MOS).

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Cable category

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Switch port density

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Firewall throughput

Question 3

A project to consolidate multiple physical servers into a private cloud. What is the primary benefit of using server virtualization?

Accepted Answer

Reduced power consumption. Server virtualization allows multiple virtual machines to run on a single physical host, significantly reducing the number of physical servers required. This consolidation directly lowers power consumption because fewer physical machines need electricity for operation and cooling. While other benefits exist, reduced power consumption is the primary advantage in a consolidation project.

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Increased physical security

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Simplified licensing

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Improved network speed

Question 4

While upgrading storage, the project team discovers that the SAN switch is saturated. What immediate step should the project manager take?

Accepted Answer

Update risk register and assess impact. When a SAN switch is saturated, the immediate priority is to document the risk and assess its impact on the project timeline, budget, and deliverables. Updating the risk register ensures the issue is formally tracked and that mitigation or contingency plans can be developed before taking any technical action. This aligns with the project manager's role in risk management, not direct technical troubleshooting.

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Add additional storage

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Increase bandwidth via link aggregation

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Escalate to sponsor

Question 5

A company is migrating from on-premise email to a cloud-based solution. The vendor changes the migration tool mid-project. Which project management document should be updated to track the impact on requirements?

Accepted Answer

Requirements traceability matrix. The requirements traceability matrix (RTM) links each requirement to its origin, design, testing, and delivery status. When the vendor changes the migration tool mid-project, the RTM must be updated to reflect how this change impacts each requirement—such as compatibility, data migration rules, or security controls—ensuring all requirements are still met and traceable.

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Risk management plan

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Project charter

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Work breakdown structure

Question 6

A project involves installing new firewalls across multiple sites. The project manager notices the schedule is slipping due to site-specific electrical requirements that were not initially identified. What is the best course of action?

Accepted Answer

Perform root cause analysis. The schedule is slipping due to unidentified site-specific electrical requirements, which is a root cause of the delay. Performing a root cause analysis (RCA) allows the project manager to understand why these requirements were missed and to prevent recurrence, rather than simply applying a schedule compression technique that does not address the underlying issue. In IT infrastructure projects, electrical requirements are often tied to power specifications for firewalls (e.g., voltage, amperage, or UPS compatibility), and failing to identify them early indicates a gap in requirements gathering.

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Crash the schedule by adding resources

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Submit a change request to extend schedule

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Fast track the remaining tasks

Question 7

A team is implementing a disaster recovery plan that includes replication to a secondary data center. Which metric should the project manager prioritize defining in the DR plan?

Accepted Answer

Recovery time objective (RTO). The Recovery Time Objective (RTO) defines the maximum acceptable downtime after a disaster, directly dictating the speed of failover to the secondary data center. In a replication-based DR plan, the RTO determines whether synchronous or asynchronous replication is used and how quickly systems must be brought online. The project manager must prioritize this metric to align recovery speed with business continuity requirements.

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Mean time between failures (MTBF)

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Recovery point objective (RPO)

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Mean time to repair (MTTR)

Question 8

A project is deploying a new virtualized server environment. The project manager receives a report that resource pooling is inefficient. Which technology can best improve resource utilization across the virtual hosts?

Accepted Answer

Hypervisor memory overcommitment. Hypervisor memory overcommitment allows a hypervisor to allocate more virtual machine (VM) memory to VMs than the physical RAM available on the host, relying on the fact that VMs rarely use their full allocated memory simultaneously. This directly improves resource utilization by enabling higher VM density per physical host, which is the core inefficiency in resource pooling. Technologies like VMware ESXi's transparent page sharing or KSM (Kernel Same-page Merging) further optimize this by deduplicating identical memory pages.

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VLANs

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Load balancing

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RAID

Question 9

A project to implement a new storage solution. The team is evaluating iSCSI vs Fibre Channel. Which factor is most important for choosing iSCSI over Fibre Channel?

Accepted Answer

Lower cost. iSCSI is generally chosen over Fibre Channel primarily because it leverages existing Ethernet infrastructure, which significantly reduces hardware and operational costs. Fibre Channel requires specialized switches, host bus adapters (HBAs), and cabling, whereas iSCSI can run on standard network interface cards (NICs) and switches, making it a more cost-effective solution for many organizations.

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Longer distance support

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Higher performance

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Better security

Question 10

A company is migrating to a new ERP system. The project manager needs to ensure minimal downtime during cutover. Which deployment strategy should be recommended?

Accepted Answer

Parallel. The parallel deployment strategy is recommended because it allows the old and new ERP systems to run concurrently during cutover, enabling users to validate the new system while maintaining operations on the legacy system. This minimizes downtime by providing a fallback option if issues arise, ensuring business continuity during the migration.

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Big bang

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Pilot

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Phased

Question 11

A project to upgrade network switches. Which TWO factors should the project manager consider when selecting switches? (Choose two.)

Accepted Answer

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.

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Switch color

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Warranty period

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Brand name

Question 12

A project to implement a new backup solution. Which THREE components are essential for a comprehensive backup strategy? (Choose three.)

Accepted Answer

Retention policy. A retention policy is essential because it defines how long backup copies are kept, ensuring compliance with legal or operational requirements and enabling recovery to specific points in time. Without a retention policy, backups may be deleted too early (causing data loss) or retained indefinitely (wasting storage). It directly governs the lifecycle of backup data, which is a core component of any comprehensive backup strategy.

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Compression

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Replication

Question 13

A company is deploying a new web server. Which TWO security measures should the project manager include in the project plan? (Choose two.)

Accepted Answer

Firewall rules. Firewall rules are essential for controlling inbound and outbound traffic to the web server, protecting it from unauthorized access and attacks. A TLS certificate enables HTTPS encryption, ensuring data confidentiality and integrity between clients and the server. Both are critical security measures that should be included in the project plan for a new web server deployment.

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UPS

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Load balancer

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RAID array

Question 14

A project manager is selecting a data center for a new application that requires high availability and disaster recovery. Which type of data center arrangement is most appropriate?

Accepted Answer

Active-active. An active-active data center arrangement is most appropriate for high availability and disaster recovery because it distributes application traffic across multiple geographically dispersed data centers, all of which are actively serving requests. If one site fails, traffic is seamlessly redirected to the remaining active sites, ensuring near-zero downtime and no data loss. This configuration supports automatic failover and load balancing, which are critical for meeting stringent recovery time objectives (RTO) and recovery point objectives (RPO).

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Single site

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Active-passive

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Colocation

Question 15

A project team is deploying new servers in a virtualized environment. The project scope includes performance monitoring. Which tool should the team configure to baseline CPU and memory usage?

Accepted Answer

Hypervisor management console. The hypervisor management console (e.g., vCenter for VMware or Hyper-V Manager) provides built-in performance monitoring and historical data collection for virtualized servers, allowing the team to baseline CPU and memory usage directly from the virtualization layer. This is the correct tool because it captures resource utilization at the hypervisor level, which is essential for establishing performance baselines in a virtualized environment.

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SNMP trap receiver

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Load balancer

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Network analyzer