Quick Answer
The correct result is 55000. This is because the SQL AVG function calculation determines the arithmetic mean by summing all non-null values in the specified column and dividing by the count of those rows, so for the salaries 50000, 60000, and 55000, the average is (50000 + 60000 + 55000) / 3 = 55000. On the CompTIA ITF+ FC0-U61 exam, this question tests your understanding of aggregate functions and how they operate on a set of values, often appearing in scenarios where you must compute a simple average from a small dataset. A common trap is forgetting that AVG ignores NULL values, which can skew the result if not accounted for, so always verify the data contains no missing entries. Remember the mnemonic “Add Values, then Get the mean” to recall that AVG sums and divides by the count.
This FC0-U61 practice question tests your understanding of database fundamentals. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Refer to the exhibit. A user executes: SELECT AVG(Salary) FROM Employees; What is the result?
55000
The average is (50000+60000+55000)/3 = 55000.
50000
Why wrong: 50000 is the minimum salary.
165000
Why wrong: 165000 is the sum, not the average.
60000
Why wrong: 60000 is the maximum salary.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
55000
The AVG function calculates the arithmetic mean of the Salary column across all rows in the Employees table. Given the salaries 50000, 60000, and 55000, the average is (50000 + 60000 + 55000) / 3 = 55000. Therefore, option A is correct.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
55000
Why this is correct
The average is (50000+60000+55000)/3 = 55000.
Related concept
Read the scenario before looking for a memorised answer.
50000
Why it's wrong here
50000 is the minimum salary.
165000
Why it's wrong here
165000 is the sum, not the average.
60000
Why it's wrong here
60000 is the maximum salary.
Common exam traps
The trap here is that candidates often confuse AVG with SUM or MIN/MAX, leading them to pick the sum (165000) or an extreme value (50000 or 60000) instead of correctly computing the mean.
Detailed technical explanation
The AVG function in SQL ignores NULL values by default when computing the mean, which can affect results if the Salary column contains NULLs. In this scenario, all three rows have non-NULL salaries, so the simple arithmetic mean is returned. Understanding how aggregate functions handle NULLs is critical for accurate data analysis in real-world databases.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the FC0-U61 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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Database Fundamentals — This question tests Database Fundamentals — Read the scenario before looking for a memorised answer..
The correct answer is: 55000 — The AVG function calculates the arithmetic mean of the Salary column across all rows in the Employees table. Given the salaries 50000, 60000, and 55000, the average is (50000 + 60000 + 55000) / 3 = 55000. Therefore, option A is correct.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This FC0-U61 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 FC0-U61 exam.
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