Description : Which one of the following 2G standard is used in Japan? a) IS-136 b) GSM c) PDC d) AMPS
Last Answer : c) PDC
Description : Which of the following leads to the 3G evolution of GSM, IS-136 and PDC systems? a) W-CDMA b) GPRS c) EDGE d) HSCSD
Last Answer : a) W-CDMA
Description : Which of the following is a CDMA standard of second generation network? a) IS-95 b) IS-136 c) ETACS d) EDGE
Last Answer : a) IS-95
Description : UMTS does not has backward compatibility with ____________ a) GSM b) IS-136 c) IS-95 d) GPRS
Last Answer : c) IS-95
Description : Which of the following multiple access techniques are used by second generation cellular systems? a) FDMA/FDD and TDMA/FDD c c) FDMA/FDD and CDMA/FDD d) FDMA/FDD only
Last Answer : b) TDMA/FDD and CDMA/FDD
Description : 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
Last Answer : a) GSM
Description : Popular 2G CDMA standard IS-95 is also known as ______________ a) CdmaOne b) CdmaTwo c) IS-136 d) IS-95B
Last Answer : a) CdmaOne
Description : Which of the following does not come under the teleservices of GSM? a) Standard mobile telephony b) Mobile originated traffic c) Base originated traffic d) Packet switched traffic
Last Answer : d) Packet switched traffic
Description : Which of the following is not a standard of WLAN? a) HIPER-LAN b) HIPERLAN/2 c) IEEE 802.11b d) AMPS
Last Answer : d) AMPS
Description : UMTS use which multiple access technique? a) CDMA b) TDMA c) FDMA d) SDMA
Last Answer : a) CDMA
Description : IS-136 uses which modulation technique? a) π/4 DQPSK b) BPSK c) GMSK d) AFSK
Last Answer : a) π/4 DQPSK
Description : How many voice channels are supported for each 30 KHz radio channel in IS-136? a) Eight b) Thirty c) Three d) Sixteen
Last Answer : c) Three
Description : Which of the following standard committee specifies Bluetooth and other Personal Area Networks (PAN)? a) IEEE 802.11b b) IEEE 802.15 c) IEEE 802.11g d) IEEE 802.16
Last Answer : b) IEEE 802.15
Description : The 2G GSM technology uses a carrier separation of _____________ a) 1.25 MHz b) 200 KHz c) 30 KHz d) 300 KHz
Last Answer : b) 200 KHz
Description : GSM (Global System for Mobile) was earlier also known as _____________ a) Group System Mobile b) Global Special Meaning c) Group Special Mobile d) Global Special Mobile
Last Answer : c) Group Special Mobile
Description : Which modulation technique is used by GSM? a) GMSK b) BPSK c) QPSK d) GFSK
Last Answer : a) GMSK
Description : How many users or voice channels are supported for each 200 KHz channel in GSM? a) Eight b) Three c) Sixty four d) Twelve
Last Answer : a) Eight
Description : How much increase in spectral efficiency is provided by W-CDMA in comparison to GSM? a) Two times b) Three times c) No increase d) Six times
Last Answer : d) Six times
Description : What is the term used by ITU for a set of global standards of 3G systems? a) IMT 2000 b) GSM c) CDMA d) EDGE
Last Answer : a) IMT 2000
Description : Group of superframes in GSM is called multiframe. a) True b) False
Last Answer : b) False
Description : Which of the following is not a control channel of GSM? a) BCH b) CCCH c) DCCH d) TCH
Last Answer : d) TCH
Description : __________ supports the operation and maintenance of GSM. a) BSS b) NSS c) OSS d) MSC
Last Answer : c) OSS
Description : ___________ manages the switching function in GSM. a) BSS b) NSS c) OSS d) MSC
Description : Which of the following does not come under subsystem of GSM architecture? a) BSS b) NSS c) OSS d) Channel
Last Answer : d) Channel
Description : Which of the following feature makes impossible to eavesdrop on GSM radio transmission? a) SIM b) On the air privacy c) SMS d) Packet switched traffic
Last Answer : b) On the air privacy
Description : 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
Last Answer : c) SIM
Description : Who sets the standards of GSM? a) ITU b) AT & T c) ETSI d) USDC
Last Answer : c) ETSI
Description : Previously in 1980s, GSM stands for ____________ a) Global system for mobile b) Groupe special mobile c) Global special mobile d) Groupe system mobile
Last Answer : b) Groupe special mobile
Description : An internet is a __________ a) Collection of WANS b) Network of networks c) Collection of LANS d) Collection of identical LANS and WANS
Last Answer : b) Network of networks
Description : Which of the following leads to evolution of 3G networks in CDMA systems? a) IS-95 b) IS-95B c) CdmaOne d) Cdma2000
Last Answer : d) Cdma2000
Description : What is Wired Equivalent Privacy (WEP)? a) security algorithm for ethernet b) security algorithm for wireless networks c) security algorithm for usb communication d) security algorithm for emails
Last Answer : b) security algorithm for wireless networks
Description : Which one of the following event is not possible in wireless LAN? a) collision detection b) acknowledgement of data frames c) multi-mode data transmission d) connection to wired networks
Last Answer : a) collision detection
Description : Wireless networks are extremely hostile and random nature of radio channel. a) True b) False
Last Answer : a) True
Description : PSTN is ___________ and wireless networks are ________ a) Highly dynamic, virtually static b) Static, virtually static c) Highly dynamic, virtually dynamic d) Virtually static, highly dynamic
Last Answer : d) Virtually static, highly dynamic
Description : A multiple access technique used in GSM cellular system A. TACS B. FDMA C. TDMA D. CDMA
Last Answer : C. TDMA
Description : Which of the following is not an application of third generation network? a) Global Positioning System (GPS) b) Video conferencing c) Mobile TV d) Downloading rate upto 1 Gbps
Last Answer : d) Downloading rate upto 1 Gbps
Description : How many users are supported by Cdma2000 1X in comparison to 2G CDMA standard? a) Half b) Twice c) Six times d) Ten times
Last Answer : b) Twice
Description : 2G CDMA standard, IS-95, was proposed by which company? a) Nippon Telephone and Telegraph (NTT) b) Qualcomm c) Bellcore and Motorola d) AT&T Bell Laboratories
Last Answer : b) Qualcomm
Description : Protocols are set of rules to govern _________ a) Communication b) Standard c) Metropolitan communication d) Bandwidth
Last Answer : a) Communication
Description : Which of the following 3G standard is used in Japan? a) Cdma2000 b) TD-SCDMA c) UMTS d) UTRA
Last Answer : c) UMTS
Description : Which of the following is not a standard of 3G? a) UMTS b) Cdma2000 c) TD-SCDMA d) LTE
Last Answer : d) LTE
Description : Bluetooth standard is named after ___________ a) King Ronaldo Bluetooth b) Pope Vincent Bluetooth c) King Herald Bluetooth d) Pope Francis Bluetooth
Last Answer : c) King Herald Bluetooth
Description : Which of the following is not an open standard? a) Bluetooth b) WWW c) HTML d) VPN
Last Answer : d) VPN
Description : What is the name of the European WLAN standard that provides user data rate upto 54 Mbps? a) UNII b) WISP c) MMAC d) HIPERLAN/2
Last Answer : d) HIPERLAN/2
Description : Which of the following WLAN standard has been named Wi-Fi? a) IEEE 802.6 b) IEEE 802.15.4 c) DSSS IEEE 802.11b d) IEEE 802.11g
Last Answer : c) DSSS IEEE 802.11b
Description : Which of the following spread spectrum techniques were used in the original IEEE 802.11 standard? a) FHSS and DSSS b) THSS and FHSS c) THSS and DSSS d) Hybrid technique
Last Answer : a) FHSS and DSSS
Description : Which of the following is the 802.11 High Rate Standard? a) IEEE 802.15 b) IEEE 802.15.4 c) IEEE 802.11g d) IEEE 802.11b
Last Answer : d) IEEE 802.11b
Description : In 2007 ____________ announced its plan to transmit its network to 4G standard LTE with joint efforts of Vodafone group. a) Verizon Wireless b) AirTouch c) Netflix d) V Cast
Last Answer : a) Verizon Wireless
Description : Which of the following comes under supplementary ISDN services? a) Emergency calling b) Packet switched protocols c) Call diversion d) Standard mobile telephony
Last Answer : c) Call diversion
Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 12 ohms. the current will be ________. EL-0018 A. 0.096 amps B. 1.16 amps C. 10.33 amps D. 136 m amps
Last Answer : Answer: C