Practice Quiz in Digital and Data Communication Networks Part 33

This is the Online Practice Quiz in Digital and Data Communication Networks Part 33 as one of the Communications Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies, Communications Books, Journals and other Communications References.

Continue Part XXXIII of the Online Practice Quiz

Quiz in Digital and Data Communication Networks Question 321. The Shannon-Hartley law A. refers to distortion B. defines the bandwidth C. describes signaling rates D. refers to noise Question 322. It is a multiplexing system similar to conventional time-division multiplexing except that it was developed to be used with optical fibers A. SONET B. Frame relay C. ATM D. X.25 Question 323. A transmission of binary data which involves the transmission of only a single non-zero voltage level. A. Unipolar B. Bipolar C. Polar D. Non-return to zero Question 324. Pulse code modulation is preferred to PAM because of its A. resistance to quantizing error B. simplicity C. lower cost D. superior noise immunity Question 325. A virtual circuit which is logically equivalent to a two-point dedicated private-line circuit except slower A. Switched Virtual Circuit B. Permanent Virtual Circuit C. Switched Leased Circuit D. Permanent Leased Circuit Question 326. It is the transmission of information in any form from one source to one or more destination A. Modulation B. Multiplexing C. Encoding D. Decoding Question 327. Another name for parity is A. Vertical redundancy check B. Block check character C. Longitudinal redundancy check D. Cyclic redundancy check Question 328. A 9600-baud rate signal can pass over the voice grade telephone line if which kind of modulation is used? A. BPSK B. QPSK C. DPSK D. QAM Question 329. A synchronous transmission usually begins with which character? A. SYN B. STX C. SOH D. ETB Question 330. What is the type of mastergroup used for low – capacity microwave systems? A. A600 B. U600 C. L600 D. L400

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