220-1102 Data Destruction and Disposal Practice Question
This 220-1202 practice question tests your understanding of data destruction and disposal. 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.
A small business is retiring 20 old desktop PCs that contain sensitive customer data. The IT manager wants to ensure the data is unrecoverable before donating the computers to a local school. Which method should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use a degausser on each hard drive.
The correct answer is degaussing, which uses a strong magnetic field to destroy the magnetic media on a hard drive, making data recovery impossible. Physical destruction (shredding) is also effective but not listed. Data wiping or formatting leaves data recoverable with forensic tools. This question tests knowledge of data destruction methods for secure disposal.
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.
✗
Perform a standard format of each hard drive.
Why it's wrong here
A standard format only removes the file system pointers; data remains on the drive and can be recovered with software.
✓
Use a degausser on each hard drive.
Why this is correct
Degaussing uses a powerful magnetic field to scramble the magnetic domains on the platters, rendering data permanently unrecoverable.
Related concept
Static NAT maps one inside address to one outside address.
✗
Delete all files and empty the Recycle Bin.
Why it's wrong here
Deleting files and emptying the Recycle Bin only marks the space as available; data remains until overwritten and is easily recoverable.
✗
Run a quick disk cleanup utility.
Why it's wrong here
Disk cleanup removes temporary files but does not securely erase sensitive data; it is not a destruction method.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1202 question in full detail.
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 220-1202 NAT questions on configuration and troubleshooting.
Data Destruction and Disposal — This question tests Data Destruction and Disposal — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use a degausser on each hard drive. — The correct answer is degaussing, which uses a strong magnetic field to destroy the magnetic media on a hard drive, making data recovery impossible. Physical destruction (shredding) is also effective but not listed. Data wiping or formatting leaves data recoverable with forensic tools. This question tests knowledge of data destruction methods for secure disposal.
What should I do if I get this 220-1202 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 220-1202 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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