Quick Answer
The answer is the contents of system memory (RAM). This is the correct choice because volatile data, such as RAM, is lost the moment the system loses power or is rebooted, making it the most time-sensitive evidence to capture. According to the order of volatility, established in RFC 3227, incident responders must collect the most fragile data first—running processes, active network connections, encryption keys, and open files all reside in memory and vanish instantly if the server is shut down. On the Certified Information Security Manager CISM exam, this principle tests your understanding of forensic preservation priorities; a common trap is to choose hard drive data or system logs, which are non-volatile and can be imaged later. Remember the memory tip: “RAM runs and vanishes—grab it before the power plan.”
This CISM practice question tests your understanding of incident management. 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.
During an incident investigation, the incident response team needs to collect volatile data from a compromised server. Which of the following data should be collected FIRST?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Contents of system memory (RAM)
Memory is the most volatile and should be captured first.
Network connection logs from the firewall
Why wrong: Firewall logs are external and not volatile.
Contents of the hard drive
Why wrong: Hard drive data is non-volatile and can be collected after memory.
Event logs from the system
Why wrong: Event logs are stored on disk and less volatile.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Contents of system memory (RAM)
Volatile data, such as the contents of system memory (RAM), is lost when the system is powered off. Collecting RAM first preserves evidence of running processes, network connections, and encryption keys that would otherwise be destroyed. This follows the order of volatility (RFC 3227), which mandates capturing the most volatile data first.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Contents of system memory (RAM)
Why this is correct
Memory is the most volatile and should be captured first.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Network connection logs from the firewall
Why it's wrong here
Firewall logs are external and not volatile.
Contents of the hard drive
Why it's wrong here
Hard drive data is non-volatile and can be collected after memory.
Event logs from the system
Why it's wrong here
Event logs are stored on disk and less volatile.
Common exam traps
The trap here is that candidates often prioritize persistent data like hard drive contents or logs, mistakenly thinking they are more important, but the order of volatility dictates that transient data in RAM must be captured first to avoid permanent loss.
Detailed technical explanation
Under the hood, RAM contains process lists, open network sockets, loaded kernel modules, and decrypted data that are critical for understanding the attacker's current activity. Tools like FTK Imager or LiME (Linux Memory Extractor) are used to capture RAM without altering the system state. In a real-world scenario, failing to capture RAM first could lose evidence of a memory-resident rootkit, such as those that hide processes from the operating system.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the CISM 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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Incident Management — This question tests Incident Management — Read the scenario before looking for a memorised answer..
The correct answer is: Contents of system memory (RAM) — Volatile data, such as the contents of system memory (RAM), is lost when the system is powered off. Collecting RAM first preserves evidence of running processes, network connections, and encryption keys that would otherwise be destroyed. This follows the order of volatility (RFC 3227), which mandates capturing the most volatile data first.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Read the scenario before looking for a memorised answer.
About these practice questions
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Same concept, more angles
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. During an incident, the response team collects volatile data from a compromised server. Which of the following should be collected FIRST to minimize loss of evidence?
mediumWhy A: Volatile data, such as the contents of RAM, is lost when a system is powered off. The first priority during incident response is to capture this data because it contains running processes, network connections, encryption keys, and malware that exist only in memory. Collecting RAM first ensures that this critical evidence is preserved before any other actions that might alter the system state.
Last reviewed: Jun 11, 2026
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