- A
Symmetric encryption: Uses a single shared key for encryption and decryption.
Correct: Symmetric encryption uses the same key for both operations, making it efficient for large data.
- B
Asymmetric encryption: Uses a single shared key for encryption and decryption.
Why wrong: Incorrect: Asymmetric encryption uses a public/private key pair, not a single shared key.
- C
Hash function: Provides non-repudiation and sender authentication.
Why wrong: Incorrect: Hash functions provide integrity, not non-repudiation or authentication. Digital signatures provide those.
- D
MAC: Combines integrity and authentication using a shared secret key.
Correct: A MAC (Message Authentication Code) ensures both integrity and authenticity with a shared key.
- E
Digital signature: Produces a fixed-size digest for data integrity.
Why wrong: Incorrect: Digital signatures use asymmetric keys for non-repudiation and authentication, not just a fixed-size digest. Hash functions produce digests.
- F
KDF: Derives keys from passwords to increase security.
Correct: A Key Derivation Function (KDF) expands a password into a secure key, often using salting and iteration to resist attacks.
SY0-701 General Security Concepts Practice Question
This SY0-701 practice question tests your understanding of general security concepts. 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.
Match each cryptographic primitive to its main purpose.
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
Symmetric encryption: Uses a single shared key for encryption and decryption.
Symmetric encryption is efficient for large data, asymmetric encryption enables key exchange and signatures, hash functions ensure integrity, MACs combine integrity and authenticity, digital signatures add non-repudiation, and KDFs strengthen passwords for key use.
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.
- ✓
Symmetric encryption: Uses a single shared key for encryption and decryption.
Why this is correct
Correct: Symmetric encryption uses the same key for both operations, making it efficient for large data.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Asymmetric encryption: Uses a single shared key for encryption and decryption.
Why it's wrong here
Incorrect: Asymmetric encryption uses a public/private key pair, not a single shared key.
- ✗
Hash function: Provides non-repudiation and sender authentication.
Why it's wrong here
Incorrect: Hash functions provide integrity, not non-repudiation or authentication. Digital signatures provide those.
- ✓
MAC: Combines integrity and authentication using a shared secret key.
Why this is correct
Correct: A MAC (Message Authentication Code) ensures both integrity and authenticity with a shared key.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Digital signature: Produces a fixed-size digest for data integrity.
Why it's wrong here
Incorrect: Digital signatures use asymmetric keys for non-repudiation and authentication, not just a fixed-size digest. Hash functions produce digests.
- ✓
KDF: Derives keys from passwords to increase security.
Why this is correct
Correct: A Key Derivation Function (KDF) expands a password into a secure key, often using salting and iteration to resist attacks.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
Quick reference
Symmetric Encryption Algorithm Comparison
| Algorithm | Key Size | Block Size | Status | Notes |
|---|---|---|---|---|
| AES-128 | 128-bit | 128-bit | Current standard | NIST approved; WPA3, TLS |
| AES-256 | 256-bit | 128-bit | Current standard | Preferred for sensitive / govt data |
| 3DES | 112-bit effective | 64-bit | Deprecated (2023) | Replaced by AES |
| DES | 56-bit | 64-bit | Broken | Cracked in < 24 h; never deploy |
| ChaCha20 | 256-bit | Stream cipher | Current | TLS 1.3, WireGuard |
What to study next
Got this wrong? Here's your next step.
Identify which SY0-701 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
- →
General Security Concepts — study guide chapter
Learn the concepts, then practise the questions
- →
General Security Concepts practice questions
Targeted practice on this topic area only
- →
All SY0-701 questions
1,152 questions across all exam domains
- →
Security+ SY0-701 study guide
Full concept coverage aligned to exam objectives
- →
SY0-701 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related SY0-701 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
General Security Concepts practice questions
Practise SY0-701 questions linked to General Security Concepts.
Threats, Vulnerabilities, and Mitigations practice questions
Practise SY0-701 questions linked to Threats, Vulnerabilities, and Mitigations.
Security Architecture practice questions
Practise SY0-701 questions linked to Security Architecture.
Security Operations practice questions
Practise SY0-701 questions linked to Security Operations.
Security Program Management and Oversight practice questions
Practise SY0-701 questions linked to Security Program Management and Oversight.
Security+ social engineering questions
Practise SY0-701 questions linked to Security+ social engineering questions.
Security+ cryptography practice questions
Practise SY0-701 questions linked to Security+ cryptography.
Security+ IAM questions
Practise SY0-701 questions linked to Security+ IAM questions.
Security+ risk management questions
Practise SY0-701 questions linked to Security+ risk management questions.
Security+ incident response questions
Practise SY0-701 questions linked to Security+ incident response questions.
Security+ malware questions
Practise SY0-701 questions linked to Security+ malware questions.
Security+ vulnerability management questions
Practise SY0-701 questions linked to Security+ vulnerability management questions.
Practice this exam
Start a free SY0-701 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this SY0-701 question test?
General Security Concepts — This question tests General Security Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Symmetric encryption: Uses a single shared key for encryption and decryption. — Symmetric encryption is efficient for large data, asymmetric encryption enables key exchange and signatures, hash functions ensure integrity, MACs combine integrity and authenticity, digital signatures add non-repudiation, and KDFs strengthen passwords for key use.
What should I do if I get this SY0-701 question wrong?
Identify which SY0-701 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 →
Keep practising
More SY0-701 practice questions
- An HR analyst must send a salary file to an external auditor. The auditor only needs names, departments, and salary tota…
- An investigator receives a suspect laptop drive that may be used in court. Which approach best supports a forensically s…
- An investigator must collect data from a suspected insider-threat laptop so the evidence could be used in an HR and lega…
- An NDR tool shows a production web server sending small, periodic DNS queries to random-looking subdomains under a domai…
- An investigator needs to make a forensic image of a suspect laptop without changing the original drive contents. Which t…
- An operations team manages Linux servers over SSH. The security team wants to stop direct management access from employe…
Last reviewed: May 2, 2026
This SY0-701 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 SY0-701 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.