This PT0-002 practice question tests your understanding of planning and scoping. 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.
Network Topology
Based on the exhibit, which host or network can SSH to 10.0.1.10?
Why wrong: The second rule allows SSH from this network, but the first rule drops all traffic to the subnet before the second rule is reached.
B
10.0.1.0/24
Why wrong: The first rule drops all traffic to the entire subnet, including from within the subnet? Actually the rule source is 0.0.0.0/0, so it applies to all sources, including 10.0.1.0/24. So traffic from within the subnet would also be dropped.
C
None
Due to the first drop rule covering the entire 10.0.1.0/24 subnet, no SSH traffic can reach 10.0.1.10.
D
0.0.0.0/0
Why wrong: The default route is not relevant; the drop rule applies to all sources.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
None
The first rule drops all traffic from any source to the 10.0.1.0/24 network. Since 10.0.1.10 falls within that subnet, all traffic to it is dropped before subsequent rules are evaluated, including the SSH allow rule. Therefore, no host can SSH to 10.0.1.10.
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.
✗
192.168.1.0/24
Why it's wrong here
The second rule allows SSH from this network, but the first rule drops all traffic to the subnet before the second rule is reached.
✗
10.0.1.0/24
Why it's wrong here
The first rule drops all traffic to the entire subnet, including from within the subnet? Actually the rule source is 0.0.0.0/0, so it applies to all sources, including 10.0.1.0/24. So traffic from within the subnet would also be dropped.
✓
None
Why this is correct
Due to the first drop rule covering the entire 10.0.1.0/24 subnet, no SSH traffic can reach 10.0.1.10.
The default route is not relevant; the drop rule applies to all sources.
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 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. Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PT0-002 question in full detail.
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.
Planning and Scoping — This question tests Planning and Scoping — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: None — The first rule drops all traffic from any source to the 10.0.1.0/24 network. Since 10.0.1.10 falls within that subnet, all traffic to it is dropped before subsequent rules are evaluated, including the SSH allow rule. Therefore, no host can SSH to 10.0.1.10.
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.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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 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.
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.