TCS Placement: Sample Questions 247 - 247 of 502

Get unlimited access to the best preparation resource for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.

Question 247

Edit

Describe in Detail

Essay▾

What are the possible ways of data exchange?

Explanation

Simplex

  • Data can be sent only in one direction i.e.. communication is unidirectional.
  • Cannot send a message back to the sender. Unidirectional communication in simplex systems sends a command/signal without expecting any response.
  • Examples are loudspeakers, television broadcasting, television remote, keyboard, monitor etc.
Given the Image is Define the Simplex

Half-Duplex

  • Data can be transmitted in both directions but not at the same time.
  • On a local area network using half-duplex transmission, one workstation can send data on the line and then immediately receive data on the same line but not do both at same time.
  • Half-duplex transmission thus requires a bidirectional line but data can be sent in only one direction at a time.
  • For example, a walkie- talkie in which message is sent one at a time but messages are sent in both the directions.
Give the Image is Define the Half-Duplex

Full-Duplex

  • Full duplex system can send data in both the directions at the same time.
  • Example is a Telephone Network in which there is communication between two persons by a telephone line at the same time.
  • In full duplex there can be two dedicated lines one for sending data and other for receiving it.
Give the Image is Define the Full-Duplex

Developed by: