- A
Secure Boot
Secure Boot helps ensure the device starts using trusted boot components instead of unapproved pre-boot code. That reduces the risk of tampered boot media or rogue recovery tools.
- B
Application control or allowlisting
Application control blocks unauthorized programs from running after the operating system starts. It is the best fit when the goal is to permit only approved software.
- C
DNS forwarding
Why wrong: DNS forwarding routes name lookups to another resolver, but it does not stop untrusted boot media or control executable execution. It is unrelated to endpoint hardening.
- D
Longer screen-lock timeout
Why wrong: A longer screen-lock timeout weakens physical security rather than improving it. It does not address boot integrity or application execution control.
- E
Public DNS resolvers
Why wrong: Public DNS resolvers may improve name resolution in some cases, but they do not prevent unauthorized boot or application execution. They are not the correct hardening controls here.
Quick Answer
The answer is Secure Boot and application control or allowlisting. Secure Boot prevents unauthorized boot from removable media by verifying that only digitally signed, trusted firmware and bootloaders execute during startup, blocking unmanaged OS images from USB drives or other external devices. Application control or allowlisting complements this by restricting software execution to only pre-approved programs, ensuring that even if a system boots securely, no unapproved tools can run on the laptops. On the Security+ SY0-701 exam, this pairing tests your understanding of defense-in-depth at both the firmware and operating system layers—a common trap is confusing Secure Boot with full disk encryption or BIOS passwords, which do not control runtime software. Remember the memory tip: “Boot with Secure, run with Allow” to link Secure Boot to startup integrity and allowlisting to ongoing application enforcement.
SY0-701 Security Architecture Practice Question
This SY0-701 practice question tests your understanding of security architecture. 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 team wants to reduce the chance that employees boot unmanaged tools from removable media and wants only approved software to run on laptops. Which two controls should they use? Select two.
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
Secure Boot
Secure Boot is correct because it ensures that only signed, trusted firmware and bootloaders execute during system startup, preventing unauthorized bootable media (e.g., USB drives with unmanaged OS images) from loading. This directly reduces the chance that employees can boot unmanaged tools from removable media by enforcing a chain of trust from UEFI firmware to the operating system kernel.
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.
- ✓
Secure Boot
Why this is correct
Secure Boot helps ensure the device starts using trusted boot components instead of unapproved pre-boot code. That reduces the risk of tampered boot media or rogue recovery tools.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Application control or allowlisting
Why this is correct
Application control blocks unauthorized programs from running after the operating system starts. It is the best fit when the goal is to permit only approved software.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
DNS forwarding
Why it's wrong here
DNS forwarding routes name lookups to another resolver, but it does not stop untrusted boot media or control executable execution. It is unrelated to endpoint hardening.
- ✗
Longer screen-lock timeout
Why it's wrong here
A longer screen-lock timeout weakens physical security rather than improving it. It does not address boot integrity or application execution control.
- ✗
Public DNS resolvers
Why it's wrong here
Public DNS resolvers may improve name resolution in some cases, but they do not prevent unauthorized boot or application execution. They are not the correct hardening controls here.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse DNS forwarding (a network service) with DNS filtering or security controls, or think that a longer screen-lock timeout improves security, when in fact it weakens physical security by extending the window of opportunity for unauthorized access.
Detailed technical explanation
How to think about this question
Secure Boot relies on UEFI firmware validating digital signatures of bootloaders against a database of trusted keys (db) and forbidden keys (dbx). Application control (allowlisting) uses technologies like Windows AppLocker or WDAC (Windows Defender Application Control) to enforce a policy that only executables with specific publisher signatures, hashes, or paths can run, blocking unapproved software even if it reaches the file system. In a real-world scenario, an attacker might use a bootable Linux USB to bypass OS-level controls; Secure Boot prevents this by refusing to load the unsigned bootloader.
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 security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this SY0-701 question test?
Security Architecture — This question tests Security Architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Secure Boot — Secure Boot is correct because it ensures that only signed, trusted firmware and bootloaders execute during system startup, preventing unauthorized bootable media (e.g., USB drives with unmanaged OS images) from loading. This directly reduces the chance that employees can boot unmanaged tools from removable media by enforcing a chain of trust from UEFI firmware to the operating system kernel.
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
4 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. Several company laptops were found to boot from a removable drive containing an untrusted pre-boot utility before the operating system loaded. The security team wants to prevent unsigned or tampered boot code from starting. Which control is the best fit?
medium- ✓ A.Enable Secure Boot in firmware and block external boot devices where possible.
- B.Turn on screen lock after ten minutes of inactivity.
- C.Increase the password complexity policy for user accounts.
- D.Disable Windows Defender notifications on the endpoints.
Why A: Secure Boot is a UEFI firmware feature that verifies the digital signature of boot code against a trusted database before execution. By enabling Secure Boot and blocking external boot devices, the security team ensures that only signed, trusted bootloaders and drivers can run, preventing untrusted pre-boot utilities from loading. This directly addresses the scenario where laptops boot from a removable drive containing unsigned or tampered boot code.
Variation 2. Several corporate laptops occasionally boot from a removable drive containing an untrusted recovery tool before Windows loads. The security team wants to reduce the chance of pre-boot tampering and unauthorized boot media use. Which two controls are most effective? Select two.
medium- ✓ A.Enable UEFI Secure Boot.
- ✓ B.Disable booting from external media or protect the firmware setup with a password.
- C.Keep local administrator rights so users can recover faster.
- D.Turn off disk encryption because it slows startup.
- E.Move the laptops to a different subnet.
Why A: UEFI Secure Boot ensures that only signed, trusted bootloaders and drivers are executed during the boot process. By verifying the digital signature of each component against a database of trusted keys, it prevents unauthorized boot media (such as an untrusted recovery tool) from loading before the operating system starts. This directly reduces the risk of pre-boot tampering and unauthorized boot media use.
Variation 3. A security team discovers that several laptops occasionally boot from a removable drive before Windows loads, allowing unapproved recovery tools to run. Management wants to prevent this with the least impact on normal users. Which control is the best fit?
medium- A.Disable all USB ports permanently on every laptop.
- ✓ B.Enable secure boot and restrict the firmware boot order so only the approved internal boot path is allowed.
- C.Uninstall the endpoint protection agent and replace it with manual inspections.
- D.Move user data to cloud storage so rogue boot media can no longer access it.
Why B: Secure Boot ensures that only signed, trusted firmware and bootloaders execute during the startup process. By restricting the firmware boot order to the internal drive only, the laptop will ignore removable media during boot, preventing unapproved recovery tools from running before Windows loads. This has minimal impact on normal users because they can still use USB devices after the OS has booted.
Variation 4. A laptop repeatedly starts with an unapproved bootloader, and the security team wants the firmware to refuse boot code that is not signed by a trusted key. Which feature should be used?
easy- ✓ A.Secure Boot.
- B.BitLocker full-disk encryption.
- C.A DHCP reservation.
- D.A local administrator password policy.
Why A: Secure Boot is a UEFI firmware feature that verifies the digital signature of bootloaders and kernel code against a database of trusted keys before allowing execution. By configuring Secure Boot to only accept boot code signed by a trusted key, the firmware will reject any unapproved bootloader, preventing unauthorized code from running during the boot process.
Last reviewed: Jun 11, 2026
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