The answer is to disconnect affected systems from the network first. This immediate containment step is critical because ransomware typically spreads laterally through network shares and SMB protocols, so isolating the compromised machine stops the encryption from reaching other systems and preserves forensic evidence. On the CompTIA ITF+ FC0-U61 exam, this tests your understanding of the incident response lifecycle, where containment always precedes eradication or recovery—a common trap is choosing “run antivirus” or “restore from backup” first, but those come later. Remember the memory tip: “Cut the cord before you clean the board”—isolate the network connection before any other action.
FC0-U61 Security Practice Question
This FC0-U61 practice question tests your understanding of security. 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.
After a ransomware attack, which step should be taken FIRST in the incident response process?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Disconnect affected systems from network
The first step in incident response after a ransomware attack is to contain the threat by disconnecting affected systems from the network. This prevents the ransomware from encrypting additional files on other systems and stops lateral movement, which is critical because ransomware often uses network shares and SMB protocols to spread. Immediate isolation preserves forensic evidence and limits the scope of the incident before any other actions are taken.
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.
✗
Notify law enforcement
Why it's wrong here
Notifying authorities is important but should happen after containment to avoid delay.
✓
Disconnect affected systems from network
Why this is correct
Disconnecting stops the spread and limits damage, a crucial first step.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Restore from backup
Why it's wrong here
Restoring from backup is part of recovery but should occur after containment and assessment.
✗
Pay the ransom
Why it's wrong here
Paying does not guarantee data recovery and encourages further attacks.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that the first step should be to restore from backups or notify authorities, but the correct first step is always containment to stop the spread of the attack.
Detailed technical explanation
How to think about this question
Ransomware often uses techniques like volume shadow copy deletion (vssadmin.exe) and lateral movement via PsExec or WMI to maximize damage. Disconnecting the network cable or disabling the NIC at the OS level (e.g., ipconfig /release) stops ongoing encryption and prevents the ransomware from communicating with its command-and-control server. In a real-world scenario, failing to isolate quickly allowed the NotPetya worm to spread globally within minutes, demonstrating why containment is the absolute first priority.
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 practitioner preparing for the FC0-U61 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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Security — This question tests Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Disconnect affected systems from network — The first step in incident response after a ransomware attack is to contain the threat by disconnecting affected systems from the network. This prevents the ransomware from encrypting additional files on other systems and stops lateral movement, which is critical because ransomware often uses network shares and SMB protocols to spread. Immediate isolation preserves forensic evidence and limits the scope of the incident before any other actions are taken.
What should I do if I get this FC0-U61 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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 →
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.
This FC0-U61 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 FC0-U61 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.