Section: A+ Essentials

26) Your modem works fine most of the time, but some connections deliver bad characters. Which of the following would most likely be the cause of the problem?

1. Invalid Communication Protocol
   
2. Faulty Modem
   
3. Line Noise
   
4. Invalid Transmit Protocol
   

A wrong protocol would cause no communication at all. This could be a faulty modem, but if it only happens intermittently, this answer is not valid. The key word in this question is connection. You are connected and are receiving intermittent bad characters due to line noise.

Exam Objective: 4.5 Given a scenario, troubleshoot wired and wireless networks with appropriate tools.