List of top Electronics and Communication Engineering Questions on communication systems asked in CUET (PG)

For IPv6 addressing:
A. It has 128-bit address space
B. It supports multicasting
C. It provides built-in IPsec support
D. It has a 32-bit address structure
Choose the correct answer from the options given below:

Match List-I with List-II (Communication Systems vs Bandwidth).

Arrange these protocols in the order of TCP/IP stack from lowest to highest layer:
A. HTTP
B. TCP
C. IP
D. MAC Address

Match List-I with List-II (Modulation vs Disadvantages).

Identify application layer protocols:
A. HTTP
B. IP
C. DNS
D. TCP

Arrange the following modulation schemes in increasing order of bits/symbol: A. 16-QAM B. 8-PSK C. QPSK D. BPSK

Assertion (A): All stereo broadcasting uses quadrature carrier multiplexing (QAM). Reason (R): QAM involves more stringent synchronization than FM system with 558 subcarrier modulation.

In a superheterodyne receiver arrange the following components sequentially from input to output: A. Antenna B. Mixer C. IF amplifier D. Audio amplifier

Carson’s rule for estimating the bandwidth (B) of an FM signal is:

Assertion (A): 8-bit PCM system performs better than 4-bit PCM system. Reason (R): 8-bit system produces smaller quantization noise than 4-bit system.

The noise at the input of an ideal frequency detector is white, the power spectral density of the noise at the output is:

In a Quadrature Amplitude Modulation (QAM) scheme, information is encoded in:

A source generates symbols with probabilities (0.5, 0.25, 0.25) at a rate of 300 symbols per second. The most efficient source encoder would have average bit rate:

Port 80 is used for:

Which of the following are fundamental concepts from Shannon's information theory? A. Entropy B. Matched filter receiver C. Auto correlation D. Channel capacity theorem

Which protocol in the TCP/IP suite is responsible for breaking data into packets and reassembling them at the destination providing reliable, connection-oriented delivery?

DNS is primarily used for:

Which modulation technique is more immune to noise: AM or FM?

Calculate the Nyquist rate for a signal with a maximum frequency component of 5 kHz.