CompTIA Network+ Practice Test

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Study for the CompTIA Network+ Exam. Enhance your skills with flashcards and multiple choice questions, each with explanations. Prepare effectively for your certification exam!

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What is meant by half duplex communication?

Data can be sent and received simultaneously
Data transmission occurs in both directions at once
Transmission can occur in only one direction at a time
It requires constant network connectivity

The correct answer is: Transmission can occur in only one direction at a time

Half duplex communication refers to a method of data transmission where transmission can occur in only one direction at a time. This means that while one device is sending data, the other device must wait for the transmission to complete before it can send data back. A common analogy for half duplex communication is a walkie-talkie, where one person speaks while the other listens, and they must take turns to communicate. This mode of communication allows devices to send and receive messages but not simultaneously, which can help manage bandwidth and simplify the communication process. Understanding half duplex is crucial in networking, as it can affect network design and the types of devices and protocols chosen for specific applications.