MCQs on Application Layer (OSI modal ) | Multiple choice questions on Data communications OSI Layers | MCQs on Data Communications | MCQs on Internet Access part 1

Multiple choice questions on Application Layer (OSI modal ). These digital communications multiple choice solutions help to enhance your knowledge in the fast growing Data Communication in Telecom Domain.

Test your Knowledge on Internet Basics , these questions are useful for preparation of various competitive examinations like GATE,DRDO,BHEL,ISRO,HAL,…etc, Online mid tests and campus interviews. Also makes you instant ready for the college vivas,internals, online tests,examinations.

Begin the Test ……..

Today, RS-232 has mostly been replaced in personal computers by _________for local communications.





Which of this is a high-speed system similar to RS-232 but with differential signaling?





Which of this is a functional and mechanical interface that used RS-422 and RS-423 signals ?





The full RS-232C standard specifies a ____-pin "D" connector of which 22 pins are used.





V.35 is an ITU-T standard located on __________ on the OSI model.





_______is referenced as RS-232.





________ is an ITU-T recommendation for a modem, allowing 56 kbit/s download and 33.6 kbit/s upload and replaced two vendor standards (K56flex and X2)





V.34 (09/94) is an ITU-T recommendation (superseded) for a modem, allowing up to _______kbit/s bidirectional data transfer.





The ______ standard is known as the 'PRI Physical Layer' whereas the _______ is known as the 'BRI Physical Layer'.





A DS1 is a full-duplex circuit, which means the circuit transmits and receives _________concurrently.





In E1, ____is often reserved for signalling purposes, to control call setup and teardown according to one of several standard telecommunications protocols.





POTS services include:





Which of these are standardized multiplexing protocols that transfer multiple digital bit streams over optical fiber using lasers or light-emitting diodes (LEDs)?





ITU-T defines ___________as a set of Optical Network Elements (3R) connected by optical fibre links, able to provide functionality of transport, multiplexing, switching, management, supervision and survivability of optical channels carrying client signals.





Which of this constitutes the physical layer?







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