CCNA: Cisco Certified Network Associate — Question 825

What is a characteristic of an SSID in wireless networks?

Answer options

• A. converts electrical current to radio waves
• B. uses policies to prevent unauthorized users
• C. broadcasts a beacon signal to announce its presence by default
• D. prompts a user for a login ID

Correct answer: C

Explanation

The correct answer is C because an SSID typically broadcasts a beacon signal to inform devices of its availability in the network. Option A is incorrect as it describes the function of a wireless transmitter, not an SSID. Option B is not accurate as SSIDs do not implement security policies themselves; that is the role of security protocols. Option D is also wrong because SSIDs do not inherently prompt for login credentials.