- A
ssh -L 1080:server:80 user@server
Why wrong: -L is local port forwarding, not SOCKS.
- B
ssh -R 1080:server:80 user@server
Why wrong: -R is remote port forwarding.
- C
ssh -J user@server:1080
Why wrong: -J is for jump hosts, not SOCKS.
- D
ssh -D 1080 user@server
-D creates a SOCKS proxy on local port 1080.
Question 516 of 1,000
PT0-002 Attacks and Exploits Practice Question
This PT0-002 practice question tests your understanding of attacks and exploits. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 exploiting a Linux server, you need to pivot to a restricted network subnet. You have SSH access to the compromised server. Which command would create a SOCKS proxy on the server to route traffic through it?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"which command"Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
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
✓
ssh -D 1080 user@server
SSH -D creates a SOCKS tunnel for dynamic port forwarding, allowing pivoting.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ssh -L 1080:server:80 user@server
Why it's wrong here
-L is local port forwarding, not SOCKS.
- ✗
ssh -R 1080:server:80 user@server
Why it's wrong here
-R is remote port forwarding.
- ✗
ssh -J user@server:1080
Why it's wrong here
-J is for jump hosts, not SOCKS.
- ✓
ssh -D 1080 user@server
Why this is correct
-D creates a SOCKS proxy on local port 1080.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
CIDR notation defines the prefix length.
Common exam traps
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.
Detailed technical explanation
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.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A security team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
Visual reference
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PT0-002 subnetting questions on CIDR, address ranges, and subnet selection.
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Attacks and Exploits — study guide chapter
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FAQ
Questions learners often ask
What does this PT0-002 question test?
Attacks and Exploits — This question tests Attacks and Exploits — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: ssh -D 1080 user@server — SSH -D creates a SOCKS tunnel for dynamic port forwarding, allowing pivoting.
What should I do if I get this PT0-002 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PT0-002 subnetting questions on CIDR, address ranges, and subnet selection.
Are there clue words in this question I should notice?
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Last reviewed: Jul 4, 2026
This PT0-002 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 PT0-002 exam.
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