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WorksheetsCOGNITIONIS#13
Total questions: 20
Worksheet time: 10mins
Full form of UMTS
Universal Mobile Telephonic System
Universal Mobile Telecommunication Server
Universal Mobile Telephonic Server
Universal Mobile Telecommunications System
Who invented Wi-Fi in India?
Jagadish Chandra Bose
Meghnad Saha
Prafulla Chandra Ray
Har Gobind Khurana
The basic GSM is based on which traffic channels?
Circuit switching
Packet Switching
Connection less
Connection oriented
The most commonly used modulation system for telegraphy is:
FSK
Two Tone Modulation
PCM
Single Tone Modulation
The code which provides for parity checks is
Baudot
EBCDIC
ASCII
CCITT-2
Which is not a key technology for 5G System?
NOMA
OFDM
SDN
TDMA
Which of the following directly communicates with UE(User equipment) in LTE network?
eNodeB
SGW
MME
PGW
Protocol for a Wi-Fi system is
IEEE 802.1a
IEEE 802.100a
IEEE 802.11a
IEEE 802.110a
Which of the following channels are responsible for initiating mobile calls?
FCC and RCC
FCC and RVC
FVC and FCC
All of these
Which is more efficient?
Parity check
Cyclic redundancy check
Parity and Cyclic redundancy check
None of the above
The maximum usable range of the usual radar set is determined by:
the width of the transmitted pulses
the interval between transmitted pulses
the bandwidth of the receiver IF stages
the duty cycle
A high-power microwave pulse of the order of megawatts can be generated by a
Travelling-Wave Tube
Magnetron
Reflex Klystron
Gunn Diode
On which of the following principle does Klystron operate?
Amplitude Modulation
Frequency Modulation
Pulse Modulation
Velocity Modulation
Which is used to protect privacy of the information ?
Compression coding
Source coding
Cipher coding
None of the above
EDGE stands for :
Enhanced Digital Generation Evolution
Encryption Data rates for GSM Evolution
Enhanced Data rates for GSM Evolution
Encryption Data for Global Evolution
Modulation technique used in GSM
GMSK
FSK
8-PSK
QPSK
VSB modulation is preferred in TV because:
It reduces the bandwidth requirement to half
It avoids phase distortion at low frequencies
It results in better reception
None of the above
To eliminate ghosts in the picture
Use a longer transmission line
Connect a booster
Change the antenna orientation of location
Twist the transmission line
World’s first cellular system was developed by:
Bellcore and Motorola
AT&T Bell Laboratories
Qualcomm
Nippon Telephone and Telegraph(NTT)
When all of the radio channels are in use in a trunking system
The user is blocked
The access to the system is blocked
The queue may be provided
All of the above
