350-401 Question #312: Real Exam Question with Answer & Explanation

Question

A wireless consultant is designing a high-density wireless network for a lecture hall for 1000 students Which antenna type is recommended for this environment?

Options

• Asector antenna
• Bdipole antenna
• Cparabolic dish
• Domnidirectional antenna

Explanation

Omnidirectional antennas are the recommended choice for high-density environments like lecture halls because they radiate signal equally in all directions (360°), providing broad, even coverage to a large number of users concentrated in a defined space. Sector antennas (A) are designed to focus signal in a specific directional arc (typically 60–120°), making them better suited for outdoor coverage of large areas like stadiums or campuses rather than enclosed, high-density indoor spaces. Parabolic dish antennas (C) produce an extremely narrow, highly focused beam and are used for long-distance point-to-point links, which is entirely inappropriate for serving 1,000 users in one room. Dipole antennas (B), while technically omnidirectional, are simple, low-gain antennas typically used for basic home or small-office setups and lack the performance characteristics needed for enterprise high-density deployments.

🧠 Memory Tip: Think "Omni = Everyone" - omnidirectional covers all directions, making it perfect when you need to serve all users spread throughout a single space. If you're covering a crowd, go omni!

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