200-901 Software Development and Design Practice Question
This 200-901 practice question tests your understanding of software development and design. 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.
Which THREE of the following are direct benefits of using version control in software development?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Traceability of changes
Options A, C, and E are correct because version control enables collaboration by allowing multiple developers to work concurrently, provides a history for rollback, and offers traceability for changes. Automated testing (B) is not a direct benefit of version control, and eliminating syntax errors (D) is unrelated to version control.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Traceability of changes
Why this is correct
Version control tracks who made what change and when, providing an audit trail.
Related concept
Static NAT maps one inside address to one outside address.
✗
Automated testing integration
Why it's wrong here
Automated testing is a CI/CD practice, not a direct feature of version control.
✗
Eliminates syntax errors
Why it's wrong here
Version control does not check syntax; that requires linters or compilers.
✓
History and rollback capabilities
Why this is correct
Version control records all changes, allowing developers to revert to previous states.
Related concept
Static NAT maps one inside address to one outside address.
✓
Collaboration among team members
Why this is correct
Version control allows multiple developers to work on the same codebase without conflicts, facilitating collaboration.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 200-901 NAT questions on configuration and troubleshooting.
Software Development and Design — This question tests Software Development and Design — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Traceability of changes — Options A, C, and E are correct because version control enables collaboration by allowing multiple developers to work concurrently, provides a history for rollback, and offers traceability for changes. Automated testing (B) is not a direct benefit of version control, and eliminating syntax errors (D) is unrelated to version control.
What should I do if I get this 200-901 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 200-901 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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