Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'TELEPHONE OPERATOR DCB/MCS' And exam conducted in the year 2015. And Question paper code was '198/2015'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
79. The signal quality of Digital Communication Systems are usually measured in :
(A) Erlang (B) BER (C) dB gain (D) CCR
80. In ordinary telephony, at on heok condition, the impedance of telephone line is :
(ಸಿ) Zero (B) Low (C) High (2) Infinity
81. Telegraph circuits are used for :
(ಗಿ) Data communication (B) Voice communication
(5 Video communication (12) All the above
82, A highly secured Mini internet within an organization is : |
(A) Extranet (8) Intranet (C) Internet (D) Wi-Fi Net
83. A common media which is used for inter connecting computers of a Local Area Network
(LAN) is :
{A) Microwave (B) Waveguide
(© णः {D) None of the above
84. Analog signals are characterized by ;
(A) Frequency (B) Phase (C) Amplitude (ப) All the above
85. [ITU is an acronym for :
(ക) Indian Telecom Union (B) International Telecom Union
(C) Industrial Telecom Union (D) None of the above
86. Modem is a device mainly 1೧೯ :
(ക) Packet switching and routing (8) Modulation and demodulation
(9 Analog to digital conversion (D) Digital to analog conversion
198/2015 12 A
