MCQOPTIONS
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MCQOPTIONS
This section includes 210 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics and Telecommunication Engineering [ENT knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which of the following is not an advantage of spread spectrum channel sounding system? |
| A. | Real time |
| B. | Rejection of passband noise |
| C. | Coverage range improvement |
| D. | Less transmitter power required |
| Answer» B. Rejection of passband noise | |
| 102. |
Verify True or False A. Impulse response is a narrowband characterization. B.Impulse response does not play any role in characterization of the channel. |
| A. | Both Statements True |
| B. | Both Statements False |
| C. | Only A true |
| D. | Only B true |
| Answer» C. Only A true | |
| 103. |
Which of the following is the world’s first cellular system to specify digital modulation and network level architecture? |
| A. | GSM |
| B. | AMPS |
| C. | CDMA |
| D. | IS-54 |
| Answer» B. AMPS | |
| 104. |
Which of the following memory device stores information such as subscriber’s identification number in GSM? |
| A. | Register |
| B. | Flip flop |
| C. | SIM |
| D. | SMS |
| Answer» D. SMS | |
| 105. |
Who set the standards of GSM? |
| A. | ITU |
| B. | AT & T |
| C. | ETSI |
| D. | USDC |
| Answer» D. USDC | |
| 106. |
Which of the following does not come under subsystem of GSM architecture? |
| A. | BSS |
| B. | NSS |
| C. | OSS |
| D. | Channel |
| Answer» E. | |
| 107. |
Which of the following subsystem provides radio transmission between mobile station and MSC? |
| A. | BSS |
| B. | NSS |
| C. | OSS |
| D. | BSC |
| Answer» B. NSS | |
| 108. |
____ manages the switching function in GSM. |
| A. | BSS |
| B. | NSS |
| C. | OSS |
| D. | MSC |
| Answer» C. OSS | |
| 109. |
______ supports the operation and maintenance of GSM. |
| A. | BSS |
| B. | NSS |
| C. | OSS |
| D. | MSC |
| Answer» D. MSC | |
| 110. |
Which modulation technique is used by GSM? |
| A. | GMSK |
| B. | BPSK |
| C. | QPSK |
| D. | GFSK |
| Answer» B. BPSK | |
| 111. |
Which one is not a TDMA standard of second generation networks? |
| A. | GSM |
| B. | IS-136 |
| C. | AMPS |
| D. | PDC |
| Answer» D. PDC | |
| 112. |
Which is one of the disadvantages of 2G standards? |
| A. | Short Messaging Service (SMS) |
| B. | Digital modulation |
| C. | Limited capacity |
| D. | Limited Internet Browsing |
| Answer» E. | |
| 113. |
The 2G GSM technology uses a carrier separation of _______ |
| A. | 1.25 MHz |
| B. | 200 KHz |
| C. | 30 KHz |
| D. | 300 KHz |
| Answer» C. 30 KHz | |
| 114. |
What is the basic service unit of GSM communications? |
| A. | Location Area |
| B. | Cell |
| C. | OLMN Service Area |
| D. | MSC / VLR Service Area |
| Answer» C. OLMN Service Area | |
| 115. |
GSM stands for... |
| A. | Group Spécial Mobile |
| B. | Global System for Mobile Communications |
| C. | Great Streaming of Media |
| D. | Global Standard of Mobile Communications |
| Answer» C. Great Streaming of Media | |
| 116. |
GSM is an example of |
| A. | TDMA cellular systems |
| B. | FDMA cellular systems |
| C. | CDMA cellular systems |
| D. | SDMA cellular systems |
| Answer» B. FDMA cellular systems | |
| 117. |
What is the air interface between the Mobile Station (MS) and Base Transceiver Station (BTS) called? |
| A. | Um |
| B. | Abis |
| C. | A |
| D. | HLR |
| Answer» B. Abis | |
| 118. |
The first cellular systems were.... |
| A. | Analogue |
| B. | Digital |
| C. | Carrier waves |
| D. | Modulating waves |
| Answer» B. Digital | |
| 119. |
The Base Station Subsystem (BSS) comprises of what? |
| A. | The Base System Transcontroller and Base Station Condenser |
| B. | The Base Transceiver Station and Base Station Controller |
| C. | The Base Transcript System and Base System Computer |
| D. | The Transfer Station and Base Station Computer |
| Answer» C. The Base Transcript System and Base System Computer | |
| 120. |
The Base Station Controller (BSC) communicates with the Base Transceiver Station (BTS) over what interface? |
| A. | Hertz |
| B. | Tx / Rx |
| C. | Abis |
| D. | Cbit |
| Answer» D. Cbit | |
| 121. |
A duplex transmission is realized in 2G GSM with the help of …….. |
| A. | FDD |
| B. | TDD |
| C. | a and b |
| D. | None of the above |
| Answer» B. TDD | |
| 122. |
FDD stands for …….. |
| A. | Frequency Division Duplex |
| B. | Full Division Duplex |
| C. | Frequency Double Duplex |
| D. | Frequency Duplex Division |
| Answer» B. Full Division Duplex | |
| 123. |
What is the interface between the BSS and MSC? |
| A. | Um |
| B. | Abis |
| C. | A |
| D. | None of the above |
| Answer» D. None of the above | |
| 124. |
 2G standards support |
| A. | Limited internet browsing |
| B. | Short Messaging Service |
| C. | Both a & b |
| D. | None of the above |
| Answer» D. None of the above | |
| 125. |
SIM stands for.... |
| A. | Serial Identity Master |
| B. | Subscriber Interface Marker |
| C. | Subscriber Identity Module |
| D. | System Interface Module |
| Answer» D. System Interface Module | |
| 126. |
GSM system is a …………..system. |
| A. | Frequency division |
| B. | Time Division |
| C. | CDMA |
| D. | a and b |
| Answer» E. | |
| 127. |
GSM system includes……..frequency bands. |
| A. | 900MHz |
| B. | 1800MHz |
| C. | a and b |
| D. | None of the above |
| Answer» D. None of the above | |
| 128. |
PSTN stands for…… |
| A. | Public System Telephone Network |
| B. | Public Security Telephone Network |
| C. | Public Switched Telephone Network |
| D. | Public System Telecommunication Network |
| Answer» D. Public System Telecommunication Network | |
| 129. |
ISDN stands for…… |
| A. | Integrated Services Digital Network |
| B. | Integrated System Digital Network |
| C. | Integrated Services Data Network |
| D. | Integrated System Data Network |
| Answer» B. Integrated System Digital Network | |
| 130. |
Uplink means communication link from |
| A. | BS to MS |
| B. | MS to BS |
| C. | MS to MS |
| D. | BS to BS |
| Answer» C. MS to MS | |
| 131. |
Downlink means communication link from |
| A. | BS to MS |
| B. | MS to BS |
| C. | MS to MS |
| D. | BS to BS |
| Answer» B. MS to BS | |
| 132. |
AMPS stands for |
| A. | Advanced Mobile Phone Switching |
| B. | Advanced Mobile Phone System |
| C. | Accesed Mobile Phone System |
| D. | Advanced Mobility Phone Switching |
| Answer» C. Accesed Mobile Phone System | |
| 133. |
GMSC is |
| A. | Guided Mobile Service Switching Center |
| B. | Gateway Mobile Service Switching Center |
| C. | Gateway Mobile Service Switching Controller |
| D. | Guided Mobile Service Switching Controller |
| Answer» C. Gateway Mobile Service Switching Controller | |
| 134. |
AMPS is used in |
| A. | 1G |
| B. | 2G |
| C. | 3G |
| D. | 4G |
| Answer» B. 2G | |
| 135. |
GPRS technology was introduced in |
| A. | 2G |
| B. | 2.5G |
| C. | 3G |
| D. | 4G |
| Answer» B. 2.5G | |
| 136. |
GPRS stands for |
| A. | Group Packet Radio Service |
| B. | Group Packet Radio System |
| C. | General Processing Radio Service |
| D. | General Packet Radio Service |
| Answer» E. | |
| 137. |
Which functional block in GSM architecture,consists of the radio transmitters and receivers circuits and their associated antennas? |
| A. | BTS |
| B. | BSC |
| C. | MSC |
| D. | GMSC |
| Answer» B. BSC | |
| 138. |
Which functional block in GSM architecture, allocates radio resourses to a mobile call and for handovers? |
| A. | BTS |
| B. | BSC |
| C. | MSC |
| D. | GMSC |
| Answer» C. MSC | |
| 139. |
Which functional block in GSM architecture is responsible for necessary switching functions required for MSs located in an associated geographical area? |
| A. | BTS |
| B. | BSC |
| C. | MSC |
| D. | BSS |
| Answer» D. BSS | |
| 140. |
………………provides MS information used by MSC and maintains a list of legitimate,fraudulent or faulty MSs. |
| A. | AUC |
| B. | EIR |
| C. | HLR |
| D. | VLR |
| Answer» C. HLR | |
| 141. |
……….. Is the database that allows checking of the user with assigned SIM card. |
| A. | AUC |
| B. | EIR |
| C. | HLR |
| D. | VLR |
| Answer» B. EIR | |
| 142. |
……recognizes that the MS is from another PLMN when roaming is allowed. |
| A. | AUC |
| B. | EIR |
| C. | HLR |
| D. | VLR |
| Answer» E. | |
| 143. |
…….stores the subscrier information and part of mobile information from home PLMN. |
| A. | AUC |
| B. | EIR |
| C. | HLR |
| D. | VLR |
| Answer» D. VLR | |
| 144. |
IMEI stands for |
| A. | Integrated Master Equipment Identity |
| B. | International Mobile Equipment Identity |
| C. | International Master Equipment Identifier |
| D. | Interlinked Mobile Environment Interface |
| Answer» C. International Master Equipment Identifier | |
| 145. |
IMSI stands for.... |
| A. | Integrated Master Subscriber Identity |
| B. | International Master System Interface |
| C. | International Mobile Subscriber Identity |
| D. | Interlinked Mobile Systems Identifier |
| Answer» D. Interlinked Mobile Systems Identifier | |
| 146. |
The IMEI can be found by entering what on the handset keypad? |
| A. | #6*0# |
| B. | *#06# |
| C. | 06#*# |
| D. | 6#*0# |
| Answer» C. 06#*# | |
| 147. |
In GSM-900 system, total number of radio carriers are…………… |
| A. | 120 |
| B. | 124 |
| C. | 125 |
| D. | 200 |
| Answer» C. 125 | |
| 148. |
In GSM-900 system, two subbands of ………..are assigned. |
| A. | 200kHz |
| B. | 20kHz |
| C. | 20 MHz |
| D. | 25 MHz |
| Answer» E. | |
| 149. |
In GSM-900 system, downlink frequency is …………… |
| A. | 895MHz-920MHz |
| B. | 880MHz-905MHz |
| C. | 885MHz-910MHz |
| D. | 890MHz-915MHz |
| Answer» E. | |
| 150. |
In GSM-900 system, uplink and downlink carrier frequency differ by …………… |
| A. | 20MHz |
| B. | 45MHz |
| C. | 25MHz |
| D. | 200kHz |
| Answer» C. 25MHz | |