- A
Least privilege
Why wrong: Least privilege restricts users and systems to only the permissions necessary to perform their functions. It does not address the layering of multiple independent security controls.
- B
Defense in depth
Defense in depth uses multiple overlapping and independent security controls to protect an environment, ensuring that if one control fails, others continue to provide protection. The architect's design directly implements this principle.
- C
Zero trust
Why wrong: Zero trust is a security model that assumes no implicit trust and requires continuous verification for every access attempt. While it may involve multiple controls, its primary focus is on verifying each request, not on layering independent controls as described.
- D
Separation of duties
Why wrong: Separation of duties divides critical tasks or privileges among multiple people to reduce the risk of fraud or error. The scenario does not involve splitting responsibilities among individuals.
Quick Answer
The answer is defense in depth, the security concept being implemented by layering multiple independent controls so that no single failure compromises the entire network. This approach is correct because it creates overlapping, redundant defenses—such as a next-generation firewall at the perimeter, an intrusion prevention system on the internal network, mandatory multi-factor authentication for remote access, and quarterly security awareness training—ensuring that if one layer is bypassed, another remains to detect or block the threat. On the Security+ SY0-701 exam, this question tests your understanding of layered security versus a single-point-of-failure model; a common trap is confusing defense in depth with a single control like a firewall or with defense in breadth (covering more assets). To remember it, think of the classic “castle analogy”: a moat, a drawbridge, guards, and locked doors all work independently, so one breach doesn’t lose the castle. Memory tip: “Layers, not lasers”—multiple independent layers, not one powerful but fragile control.
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.
A security architect is designing the network security posture for a new branch office. The plan includes a next-generation firewall at the perimeter, an intrusion prevention system on the internal network, mandatory multi-factor authentication for all remote access, and quarterly security awareness training for employees. The architect explains that these controls are independent of each other so that a failure in any single control does not leave the entire network unprotected. Which security concept is the architect primarily implementing?
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
Defense in depth
The architect is implementing defense in depth by layering multiple independent security controls—a next-generation firewall (NGFW) at the perimeter, an intrusion prevention system (IPS) on the internal network, mandatory multi-factor authentication (MFA) for remote access, and quarterly security awareness training. The key phrase 'independent of each other so that a failure in any single control does not leave the entire network unprotected' directly describes the principle of layered defenses, where no single point of failure compromises overall security. This approach ensures that if an attacker bypasses the NGFW, the IPS or MFA may still prevent or detect the breach.
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.
- ✗
Least privilege
Why it's wrong here
Least privilege restricts users and systems to only the permissions necessary to perform their functions. It does not address the layering of multiple independent security controls.
- ✓
Defense in depth
Why this is correct
Defense in depth uses multiple overlapping and independent security controls to protect an environment, ensuring that if one control fails, others continue to provide protection. The architect's design directly implements this principle.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Zero trust
Why it's wrong here
Zero trust is a security model that assumes no implicit trust and requires continuous verification for every access attempt. While it may involve multiple controls, its primary focus is on verifying each request, not on layering independent controls as described.
- ✗
Separation of duties
Why it's wrong here
Separation of duties divides critical tasks or privileges among multiple people to reduce the risk of fraud or error. The scenario does not involve splitting responsibilities among individuals.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'defense in depth' with 'zero trust' because both involve multiple controls, but zero trust specifically requires continuous authentication and micro-segmentation, not just independent layers.
Trap categories for this question
Scenario analysis trap
Separation of duties divides critical tasks or privileges among multiple people to reduce the risk of fraud or error. The scenario does not involve splitting responsibilities among individuals.
Detailed technical explanation
How to think about this question
Defense in depth relies on the principle that each layer addresses different attack vectors: the NGFW performs stateful inspection and application-layer filtering (e.g., using SNORT or Suricata rules), the IPS analyzes traffic for signatures and anomalies (e.g., via protocol decoders), and MFA uses time-based one-time passwords (TOTP) per RFC 6238 or FIDO2 WebAuthn. In a real-world scenario, if an attacker exploits a zero-day vulnerability in the NGFW, the IPS might still detect the malicious payload via behavioral analysis, and MFA would block credential theft from that bypassed perimeter.
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 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.
What to study next
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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: Defense in depth — The architect is implementing defense in depth by layering multiple independent security controls—a next-generation firewall (NGFW) at the perimeter, an intrusion prevention system (IPS) on the internal network, mandatory multi-factor authentication (MFA) for remote access, and quarterly security awareness training. The key phrase 'independent of each other so that a failure in any single control does not leave the entire network unprotected' directly describes the principle of layered defenses, where no single point of failure compromises overall security. This approach ensures that if an attacker bypasses the NGFW, the IPS or MFA may still prevent or detect the breach.
What should I do if I get this SY0-701 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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 →
Same concept, more angles
2 more ways this is tested on SY0-701
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. A security architect is designing a defense strategy for a database containing sensitive customer records. The architect implements a network firewall to restrict inbound traffic to only the application server, enforces file-level encryption for the database files, requires multi-factor authentication for all administrative access, and deploys a database activity monitoring system to alert on unusual queries. Which security principle is the architect primarily applying?
medium- A.Least privilege
- ✓ B.Defense in depth
- C.Separation of duties
- D.Fail safe
Why B: The architect is applying defense in depth by layering multiple independent security controls: a network firewall, file-level encryption, multi-factor authentication, and database activity monitoring. This strategy ensures that if one control fails, others still provide protection, which is the core principle of defense in depth. Each layer addresses a different attack vector, making it significantly harder for an attacker to compromise the database.
Variation 2. A security architect is designing a defense-in-depth strategy for a corporate network. Which of the following are fundamental principles or concepts that should be incorporated into this strategy? (Choose four.)
medium- ✓ .Layered security controls to provide redundancy and prevent a single point of failure
- ✓ .The principle of least privilege to limit user and system access to only what is necessary
- ✓ .Defining a separation of duties to prevent any single individual from having excessive control
- ✓ .Implementing a zero-trust model that assumes no implicit trust and requires continuous verification
- .Using a single, comprehensive security solution to minimize complexity and management overhead
- .Disabling all logging and monitoring to reduce system resource consumption
Why : Defense-in-depth relies on layered security controls to ensure that if one control fails, others continue to protect the asset. This redundancy prevents a single point of failure, which is a core principle of the strategy.
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Last reviewed: Jun 11, 2026
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