A legacy payroll server has a critical patch available, but the business cannot reboot it for 45 days. The team isolates the server to only the payroll application subnet and requires written approval before any temporary firewall exception is made. Which two control types are present? Select two.
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
Best answer
Compensating control, because the temporary network restriction offsets the delayed patch.
The isolation reduces exposure while the system remains unpatched, so it compensates for the known weakness.
Best answer
Directive control, because written approval tells administrators what must happen before changes are allowed.
A required approval workflow directs behavior and establishes an administrative rule for exceptions.
Distractor review
Detective control, because a rule set later identifies malicious traffic.
The scenario focuses on reducing risk before exploitation, not on detecting an attack after it happens.
Distractor review
Corrective control, because the control repairs the vulnerable software itself.
Nothing in the scenario fixes the server software; the patch is delayed, so the weakness remains.
Distractor review
Deterrent control, because a warning banner discourages misuse of the server.
A warning banner could discourage users, but the main actions are isolation and approval, not discouragement.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
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Question 2
An employee reports a ransomware note on a file server. The server is still powered on, shares are still being accessed, and management wants service restored as quickly as possible. What should the incident response team do first?
Question 3
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Question 4
You are handed a company laptop suspected in an insider theft case. Legal says the evidence may be needed in court. Which action best preserves admissibility?
Question 5
A developer wants to reduce the risk of SQL injection in a new customer search form. Which two changes are the best mitigations? Select two.
Question 6
A branch office uses a flat LAN, and a compromise on one user workstation could spread quickly to finance systems. Management wants finance workstations isolated from general users, but finance staff still need access to a central finance application and network printer. What is the best design change?
FAQ
Questions learners often ask
What does this SY0-701 question test?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Compensating control, because the temporary network restriction offsets the delayed patch. — The temporary subnet isolation is a compensating control because it reduces the server's exposure while the organization cannot apply the patch on schedule. The written approval requirement is a directive control because it tells staff what process must be followed before an exception is made. This combination is common when business constraints prevent immediate remediation, and the team needs to reduce risk without claiming the underlying flaw has been fixed. Why others are wrong: The item is not asking about attack detection, software repair, or simple discouragement. No monitoring rule is described, so detective does not fit. The patch is still outstanding, so corrective does not fit. A banner might warn people, but it would not meaningfully address the risk created by the delayed patch and the restricted network placement.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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