Which method requires a receipt number for Wi-Fi access?

A coffee shop owner wants to restrict internet access to only paying customers by prompting them for a receipt number. Which of the following is the best method to use given this requirement?

  1. WPA3
  2. Captive portal Source Reference Answer
  3. PSK
  4. IEEE 802.1X

Community Votes

B
100%

100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.

Community Insight

This question tests your ability to distinguish between authentication protocols and network access enforcement mechanisms; the trap is confusing encryption standards (WPA3/PSK) with the user-facing access gateway.

Captive portals are the go-to method for public Wi-Fi to require user interaction, such as entering a receipt number, before granting internet access. The community unanimously agrees that Option B is the correct answer for this SY0-701 scenario.

A common mistake is choosing PSK (C), because it uses a shared passphrase, but it does not allow per-user validation like a receipt number and would not display a prompt.

Community Discussion (3 comments)

Anyio 👍 1 Selected: B
B. Captive portal Explanation: A captive portal is a web page that users are redirected to when they connect to a network. It is commonly used in coffee shops, hotels, and other public places to enforce policies like requiring users to enter a receipt number, agree to terms of use, or log in before granting internet access. Other Options: A. WPA3: A secure Wi-Fi encryption standard, but it does not offer functionality to prompt for receipt numbers or other user-specific authentication. C. PSK (Pre-Shared Key): Uses a shared password for network access but cannot handle individual receipt-based authentication. D. IEEE 802.1X: A port-based network access control protocol typically used in enterprise environments with authentication servers, but it is too complex and not suitable for this requirement.
qacollin 👍 1 Selected: B
B. GPT
a4e15bd 👍 2
B Captive Portal This will allow the coffee shop to restrict internet access by redirecting users to a web page where they must enter the receipt information to gain access.

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Expert Analysis

Why the Answer Is Correct

Captive portal is a network access control method that intercepts a user's HTTP requests and redirects them to a login/authentication page. In this coffee shop scenario, the receipt number is entered on that page, and once validated, the user is granted internet access. This matches the requirement of restricting access to only paying customers. Comment [1] correctly notes that the captive portal redirects users to a web page to enter receipt information.

Why the Other Options Are Wrong

WPA3 (A) is a Wi-Fi encryption standard that protects wireless traffic, but does not provide a mechanism to prompt for a receipt number. PSK (C) uses a pre-shared key/passphrase, but it is static and not suited for validating individual receipts. IEEE 802.1X (D) is an enterprise authentication standard typically using RADIUS and credentials, but it is overkill and not the typical method for a coffee shop simple receipt validation. Comment [2] correctly explains that WPA3 is a secure Wi-Fi encryption standard but does not enforce the required user interaction.

Community Comment Notes

All community votes in the supplied data point to Option B (Captive portal), indicating unanimous agreement. Comment [1] provides a direct explanation of the captive portal's behavior, and comment [2] gives a longer breakdown of each option. No dissenting comments or alternative answers were provided, reinforcing that B is the expected answer on the SY0-701 exam.

Official Reference

Exam Strategy

When you see a scenario requiring a web page for login/agreement, think captive portal. Remember that WPA3 and PSK handle encryption, not access challenge, so eliminate them.

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