The answer is to include a mix of uppercase, lowercase, numbers, and symbols, as this dramatically increases the password’s entropy, making it exponentially harder for brute-force or dictionary attacks to succeed. This complexity expands the character set from 26 letters to 95 possible characters per position, creating billions of additional combinations that an attacker must test. On the CompTIA ITF+ FC0-U61 exam, this concept appears in the security domain, often paired with a common trap where test-takers mistakenly select “use personal information” or “keep the same password forever” as best practices. A frequent memory tip is to think of password strength like a lock: the more varied the tumblers (character types), the harder it is to pick. For the exam, remember the acronym “UNCS” — Uppercase, Numbers, lowercase, Symbols — to recall the four required elements of a truly secure password policy.
FC0-U61 Security Practice Question
This FC0-U61 practice question tests your understanding of security. 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.
Which THREE of the following are best practices for creating secure passwords?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Change password every 90 days
Option B is correct because regular password changes (e.g., every 90 days) limit the window of exposure if a password is compromised. This practice aligns with NIST SP 800-63B guidelines, which recommend periodic rotation to mitigate risks from credential theft or brute-force attacks.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use the same password for all accounts for memorability
Why it's wrong here
Reusing passwords increases risk if one account is compromised.
✓
Change password every 90 days
Why this is correct
Regular changes limit the window of exposure if stolen.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use at least 8 characters
Why this is correct
Longer passwords are harder to crack.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use personal information like birthdate
Why it's wrong here
Personal info is easy to guess or obtain via social engineering.
✓
Include a mix of uppercase, lowercase, numbers, symbols
Why this is correct
Diverse character sets increase complexity.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that password reuse is acceptable for memorability, but security best practices require unique passwords per account to prevent credential stuffing attacks.
Detailed technical explanation
How to think about this question
Password policies often enforce complexity via character classes (uppercase, lowercase, numbers, symbols) to increase entropy, making brute-force attacks exponentially harder. For example, an 8-character password with all four character classes has 95^8 ≈ 6.6×10^15 possible combinations, versus 26^8 ≈ 2.1×10^11 for lowercase only. NIST SP 800-63B now recommends avoiding mandatory periodic changes unless there is evidence of compromise, but many enterprise environments still enforce 90-day rotation for compliance.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Security — This question tests Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Change password every 90 days — Option B is correct because regular password changes (e.g., every 90 days) limit the window of exposure if a password is compromised. This practice aligns with NIST SP 800-63B guidelines, which recommend periodic rotation to mitigate risks from credential theft or brute-force attacks.
What should I do if I get this FC0-U61 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which TWO of the following are best practices for creating and managing passwords?
easy
A.Share passwords with colleagues in the same department to improve collaboration
B.Reuse passwords every 90 days
✓ C.Enable multi-factor authentication where available
✓ D.Use a unique password for each online account
E.Write down passwords on a sticky note and keep it near the computer
Why C: Options B and D are correct. Using a unique password for each account prevents a single breach from compromising multiple accounts. Enabling multi-factor authentication adds an extra layer of security beyond the password. Option A is wrong because writing down passwords increases risk of theft. Option C wrong because password history enforcement (requiring new passwords to be unique) is good, but reusing a password after a few cycles is still reuse; the statement as phrased is not a best practice—actually, option C says 'Reuse passwords every 90 days' which is poor. Option E wrong because sharing passwords in a team undermines accountability and security.
Variation 2. A company requires all employees to use strong passwords. Which of the following password policies best aligns with security best practices?
medium
A.Passwords must be changed every 30 days but can be simple.
✓ B.Passwords must be at least 8 characters and include uppercase, lowercase, numbers, and symbols.
C.Passwords must be the same across all corporate accounts for consistency.
D.Passwords must be a minimum of 6 characters and contain only letters.
Why B: Option B is correct because it enforces complexity requirements (uppercase, lowercase, numbers, symbols) and a minimum length of 8 characters, which aligns with NIST SP 800-63B guidelines and modern security best practices. Complex passwords resist brute-force and dictionary attacks by increasing the keyspace exponentially. Simple passwords, even if changed frequently, remain vulnerable to guessing and credential stuffing.
Last reviewed: Jun 30, 2026
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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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