This DA0-001 practice question tests your understanding of visualizing data. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 time series dataset has several missing months of data. Which chart type will present the most honest picture of the trend?
Area chart with interpolation
Why wrong: Interpolation creates false data points.
Line chart with gaps for missing months
Gaps indicate unknown values without interpolation.
Bar chart with zero values for missing months
Why wrong: Zero values imply no sales, which may mislead.
Scatter plot with connected lines
Why wrong: Connecting scattered points also interpolates.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Line chart with gaps for missing months
Line charts with gaps explicitly show missing periods, avoiding false continuity.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Area chart with interpolation
Why it's wrong here
Interpolation creates false data points.
Line chart with gaps for missing months
Why this is correct
Gaps indicate unknown values without interpolation.
Related concept
OSPF neighbours must agree on key parameters.
Bar chart with zero values for missing months
Why it's wrong here
Zero values imply no sales, which may mislead.
Scatter plot with connected lines
Why it's wrong here
Connecting scattered points also interpolates.
Common exam traps
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
A practitioner preparing for the DA0-001 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. OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related DA0-001 OSPF questions on adjacency and route selection.
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FAQ
Visualizing Data — This question tests Visualizing Data — OSPF neighbours must agree on key parameters..
The correct answer is: Line chart with gaps for missing months — Line charts with gaps explicitly show missing periods, avoiding false continuity.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related DA0-001 OSPF questions on adjacency and route selection.
OSPF neighbours must agree on key parameters.
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Last reviewed: Jun 24, 2026
This DA0-001 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 DA0-001 exam.
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