ESA Certified Alarm Technician Practice Exam

Which of the following communication methods can digital communicators use to transmit information?

1. Standard dial tones, cellular service, TCP/IP, and TCP-UDP

2. Only wired connections

3. Satellite communication only

4. Fax machines and email

The correct answer is: Standard dial tones, cellular service, TCP/IP, and TCP-UDP

Digital communicators utilize various methods to transmit information effectively, and the correct choice encompasses a broad range of these communication technologies. Standard dial tones provide a traditional means of signaling over a phone line which can be used in digital telephony. Cellular service enables mobile communication, allowing digital devices to connect to the internet and transmit data wirelessly. TCP/IP, or Transmission Control Protocol/Internet Protocol, is fundamental for transmitting data over the internet, ensuring reliable communication between devices. Additionally, TCP-UDP (User Datagram Protocol) enhances this by allowing faster data transmission without the reliability checks of TCP, making it suitable for applications where speed is essential, such as video streaming. Other options present limitations by focusing on either a narrow type of technology or communication method. Only wired connections would exclude many modern wireless transmission methods. Satellite communication solely limits the choice to one type of transmission, ignoring others that are integral in various contexts. Lastly, fax machines and email are outdated for modern digital communicator standards, as they do not encompass the full range of digital transmission capabilities that include real-time data transfer or high-speed connectivity options available today.