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PK0-005 Practice Question: Which TWO tools are commonly used for project…
Which TWO tools are commonly used for project scheduling and displaying task dependencies? (Select TWO)
⚠ Common exam trap
Watch out — candidates often confuse the work breakdown structure (WBS) with a scheduling tool, but the WBS is purely a decomposition of scope, not a timeline or dependency display.
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
✓
Gantt chart
A Gantt chart is correct because it is a standard project scheduling tool that displays tasks as horizontal bars along a timeline, showing start and end dates, durations, and dependencies between activities. A network diagram is also correct because it visually maps tasks as nodes or arrows and explicitly shows the logical dependencies and sequencing (e.g., finish-to-start relationships) among project activities. The work breakdown structure is not a scheduling or dependency-display tool; it hierarchically decomposes project scope into deliverables and work packages. A change log records change requests and their status, and a risk register tracks identified risks, their probability, impact, and responses—neither is used to schedule tasks or display dependencies.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Gantt chart
Why this is correct
A Gantt chart plots tasks against a calendar timeline, with bars showing duration and linking arrows that expose finish-to-start dependencies. This directly satisfies the stem's requirement to schedule work and display task dependencies, making it a standard project scheduling tool.
- ✗
Work breakdown structure
Why it's wrong here
A work breakdown structure decomposes deliverables hierarchically; it does not schedule activities or render dependency links. It is tempting because it underpins scope planning, but scheduling and dependency display require tools such as Gantt charts or network diagrams, which map durations and predecessor relationships.
- ✗
Change log
Why it's wrong here
A change log records approved changes and their status; it neither schedules tasks nor depicts dependencies. It is tempting because it supports project control alongside scheduling, but dependency display belongs to Gantt charts or PERT/network diagrams, which explicitly model task sequencing and predecessor links.
- ✓
Network diagram
Why this is correct
A network diagram visually maps task dependencies through nodes and arrows, exposing the critical path and sequencing constraints. It satisfies the stem's requirement for displaying task dependencies alongside scheduling, complementing Gantt charts. Project managers use it to identify predecessor-successor relationships and float, ensuring logical task order before resource allocation.
- ✗
Risk register
Why it's wrong here
A risk register catalogues identified risks, their probability, impact and responses; it does not schedule work or show task dependencies. It is tempting because it is a core project artefact, but scheduling and dependency visualisation require Gantt charts or network diagrams, not risk documentation.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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