Digital communication system can handle
a) Analog signals
b) 1D signals c) 2D signals d) All of the mentioned

The information source of a digital communication system can be
a) Packetized
b) Continuous c) Packetized & Continuous d) None of the mentioned

The basic transmission-reception system is a ______ system.
a) Two block system
b) Three block system c) Four block system d) None of the mentioned

Modulation channel consists of
a) Amplifier
b) Signal processing units c) Amplifier & Signal processing units d) None of the mentioned

If operating frequency bands are higher ______ is available.
a) Smaller bandwidth
b) Larger bandwidth c) Smaller & Larger bandwidth d) Cannot be determined

Channel coding relates to area such as
a) Waveform coding
b) Structured sequence c) Waveform coding & Structured sequence d) None of the mentioned

Examples of structured sequences are
a) Block codes
b) Convolutional codes c) Turbo codes d) All of the mentioned

. In orthogonal signalling as k increase there is
a) Improved error performance
b) Degraded error performance c) Improved bandwidth d) None of the mentioned

In orthogonal signal, all cross correlation coefficients are
a) One
b) Zero c) Negative d) None of the mentioned

The smaller the cross correlation, the ______ is the distance between the signal vectors.
a) More
b) Less c) Double d) Half

Biorthogonal set consists of
a) Orthogonal signals
b) Antipodal signals c) Combination of orthogonal and antipodal d) None of the mentioned

Which codes perform better?
a) Orthogonal
b) Biorthogonal c) Orthogonal & Biorthogonal d) None of the mentioned

Biorthogonal codes needs ________ bandwidth as orthogonal codes.
a) Equal
b) Double c) Half d) Triple

Which code requires minimum Eb/N0?
a) Orthogonal
b) Biorthogonal c) Simplex d) All of the mentioned

VLSI is an acronym for _________

Varying large Scale Integration Varying large Scale Integrity Very large Scale Integration None of the above

MOSFETs possess ________

A) Poor packing density B) Low packing density C) High packing density D) None of the above

_____ to form integrated circuit VLSI technology uses.

A) diodes B) buffers C) switches D) transistors

What is medium scale integration?

A) Ten logic gates B) Fifty logic gates C) Hundred logic gates D) Thousands of logic gates

Logic design of VLSI is used________

A) LIFO B) FIFO C) LILO D) FILO

Which type of MOSFET exhibits no current at zero gate voltage?

A) Depletion MOSFET B) Enhancement MOSFET C) Both A & B D) None of the above

MOS transistor structure is ________

A) symmetrical B) semi symmetrical C) non symmetrical D) pseudo symmetrical