- A
Infrastructure mode WLAN; configure a laptop as a software access point.
Why wrong: Infrastructure mode requires an AP, but the scenario specifies no central device; a software AP still creates a central point.
- B
Ad hoc network; each laptop connects directly to others, but encryption may not be enforced.
Ad hoc networks allow direct device-to-device connections without an AP, but security settings like WPA2 are often not enforced, leaving data vulnerable.
- C
PAN network using Bluetooth; all laptops pair via Bluetooth.
Why wrong: Bluetooth PANs are for personal devices and have limited range and speed, not suitable for multiple laptops sharing files.
- D
Mesh network; each laptop acts as a node forwarding traffic.
Why wrong: Mesh networks require multiple nodes with routing protocols, which is more complex than needed; ad hoc is simpler for temporary file sharing.
Ad Hoc Network (IBSS) for Temporary File Sharing
This 220-1201 practice question tests your understanding of network types. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 technician is setting up a temporary network for a conference where attendees' laptops need to share files directly without any central access point or router. The conference room has no existing network infrastructure. Which network type should be configured, and what is a potential security risk?
Quick Answer
The correct answer is an ad hoc network, also known as Independent Basic Service Set (IBSS), because it allows laptops to connect directly to each other without any central access point or router, making it ideal for temporary file sharing in a room with no existing infrastructure. This peer-to-peer topology is the only viable option when no wireless router or switch is available, as each device communicates directly with others rather than through a hub. On the CompTIA A+ Core 1 220-1201 exam, this question tests your understanding of wireless network modes and their security implications; a common trap is confusing ad hoc with infrastructure mode, which requires an access point. The key security risk is that encryption may not be enforced by default, leaving each device responsible for its own firewall and data protection. Remember the memory tip: “Ad hoc = All Direct, no Hub, security is a Hub-bub.”
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
Ad hoc network; each laptop connects directly to others, but encryption may not be enforced.
An ad hoc network (IBSS) allows laptops to communicate directly without a central access point, which matches the requirement for direct file sharing with no existing infrastructure. The security risk is that encryption (like WEP or WPA2-Personal) may not be enforced by default in ad hoc mode, leaving data transmissions vulnerable to eavesdropping.
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.
- ✗
Infrastructure mode WLAN; configure a laptop as a software access point.
Why it's wrong here
Infrastructure mode requires an AP, but the scenario specifies no central device; a software AP still creates a central point.
- ✓
Ad hoc network; each laptop connects directly to others, but encryption may not be enforced.
- ✗
PAN network using Bluetooth; all laptops pair via Bluetooth.
Why it's wrong here
Bluetooth PANs are for personal devices and have limited range and speed, not suitable for multiple laptops sharing files.
- ✗
Mesh network; each laptop acts as a node forwarding traffic.
Why it's wrong here
Mesh networks require multiple nodes with routing protocols, which is more complex than needed; ad hoc is simpler for temporary file sharing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that a software access point (Option A) is the same as ad hoc mode, but a software AP still creates a centralized infrastructure network, not a true peer-to-peer connection.
Trap categories for this question
Scenario analysis trap
Infrastructure mode requires an AP, but the scenario specifies no central device; a software AP still creates a central point.
Detailed technical explanation
How to think about this question
In IEEE 802.11, an ad hoc network operates in Independent Basic Service Set (IBSS) mode, where stations communicate peer-to-peer without an AP. The lack of a central authenticator means WPA2-Enterprise (802.1X) is not feasible, and many implementations default to no encryption or weak WEP, leaving the network open to passive sniffing and active attacks like deauthentication. Real-world example: at a trade show, attendees using ad hoc mode for quick file transfers may inadvertently expose sensitive data if encryption is not manually enabled.
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 220-1201 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
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Network Types — This question tests Network Types — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Ad hoc network; each laptop connects directly to others, but encryption may not be enforced. — An ad hoc network (IBSS) allows laptops to communicate directly without a central access point, which matches the requirement for direct file sharing with no existing infrastructure. The security risk is that encryption (like WEP or WPA2-Personal) may not be enforced by default in ad hoc mode, leaving data transmissions vulnerable to eavesdropping.
What should I do if I get this 220-1201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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