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Test: Asynchronous Flow Control


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10 Questions MCQ Test Embedded Systems (Web) | Test: Asynchronous Flow Control

Test: Asynchronous Flow Control for Computer Science Engineering (CSE) 2022 is part of Embedded Systems (Web) preparation. The Test: Asynchronous Flow Control questions and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus.The Test: Asynchronous Flow Control MCQs are made for Computer Science Engineering (CSE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Asynchronous Flow Control below.
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Test: Asynchronous Flow Control - Question 1

Which can prevent the terminal of data transmission?

Detailed Solution for Test: Asynchronous Flow Control - Question 1

Explanation: The flow control can prevent the data transmission. It can also prevent the computer from sending more data than the other can cope with.

Test: Asynchronous Flow Control - Question 2

Which of the following is the first flow control method?

Detailed Solution for Test: Asynchronous Flow Control - Question 2

Explanation: The first flow control method is the hardware handshaking in which the hardware in the UART detects the potential overrun and it will assert a handshake line to tell the other UART to stop the transmission.

Test: Asynchronous Flow Control - Question 3

Which one of the following is the second method for flow controlling?

Detailed Solution for Test: Asynchronous Flow Control - Question 3

Explanation: In the first method of flow control, there is a chance of data loss. So the second method of the flow control is adopted in which it uses a software to send characters XON and XOFF. XOFF can stop the data transfer and XON can restart the data transfer.

Test: Asynchronous Flow Control - Question 4

Which can restart the data transmission?

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Explanation: The second method of flow control is called software which is based on certain characters called XON and XOFF. XOFF can stop the data transfer and XON can restart the data transfer.

Test: Asynchronous Flow Control - Question 5

Which of the following is a common connector?

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Explanation: There are two connectors which are used very commonly. They are DB-25 and DB-9 which has 25 pins and 9 pins respectively.

Test: Asynchronous Flow Control - Question 6

What does pin 22 in DB-25 indicates?

Detailed Solution for Test: Asynchronous Flow Control - Question 6

Explanation: The 22nd pin in DB-25 and the 9th pin in the DB-9 indicates a ring indicator which is asserted when a connected modem has detected an incoming call.

Test: Asynchronous Flow Control - Question 7

Which pin indicates the DSR in DB-25?

Detailed Solution for Test: Asynchronous Flow Control - Question 7

Explanation: The 6th pin in DB-25 indicates DSR, that is, data set ready which indicates that each side is powered on and is ready to access data.

Test: Asynchronous Flow Control - Question 8

Which of the following connections are one to one?

Detailed Solution for Test: Asynchronous Flow Control - Question 8

Explanation: The modem cables are straight cables which allows one to one connections without crossover.

Test: Asynchronous Flow Control - Question 9

 Which of the following are used to link PCs?

Detailed Solution for Test: Asynchronous Flow Control - Question 9

Explanation: The modem cables are used to link PC with other peripherals like printers, plotters, modems etc. But it cannot link with other PCs. So an alternative method is adopted to link PCs which is called null modem cable.

Test: Asynchronous Flow Control - Question 10

Which of the following method is used by Apple Macintosh?

Detailed Solution for Test: Asynchronous Flow Control - Question 10

Explanation: The Apple Macintosh and UNIX use software handshaking for the data transmission where the characters are sent to control the flow of characters between two systems.

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