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 : 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 : The price of WLAN hardware is more than 3G telephones and fixed wireless equipment. a) True b) False
Last Answer : b) False
Description : AIN has different telephone numbers for both wireline and wireless services. a) True b) False
Description : Mostly ________ is used in wireless LAN. a) time division multiplexing b) orthogonal frequency division multiplexing c) space division multiplexing d) channel division multiplexing
Last Answer : b) orthogonal frequency division multiplexing
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 one is not a TDMA standard of second generation networks? a) GSM b) IS-136 c) AMPS d) PDC
Last Answer : c) AMPS
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 : 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 : Cdma2000 works in TDD mode only. a) True b) False
Description : 2G and 2.5G CDMA operators may selectively introduce 3G capabilities at each cell without changing entire base stations and reallocate spectrums. a) True b) False
Last Answer : a) True
Description : W-CDMA requires a complete change of RF equipment at each base station. a) True b) False
Description : W-CDMA works in FDD mode only. a) True b) False
Description : WLANs use high power levels and generally require a license for spectrum use. a) True b) False
Description : At the base station, the air interface portion of mobile transmission is passed to MSC. a) True b) False
Description : MSCs provide connectivity between PSTN and the base stations. a) True b) False
Description : Circuit switching has more advantage than packet switching for PCS. a) True b) False
Description : PCS/PCN provides only wired communication. a) True b) False
Description : Group of superframes in GSM is called multiframe. a) True b) False
Description : In wireless network an extended service set is a set of ________ a) connected basic service sets b) all stations c) all access points d) connected access points
Last Answer : a) connected basic service sets
Description : A wireless network interface controller can work in _______ a) infrastructure mode b) ad-hoc mode c) both infrastructure mode and ad-hoc mode d) WDS mode
Last Answer : c) both infrastructure mode and ad-hoc mode
Description : In wireless distribution system __________ a) multiple access point are inter-connected with each other b) there is no access point c) only one access point exists d) access points are not required
Last Answer : a) multiple access point are inter-connected with each other
Description : In wireless ad-hoc network _________ a) access point is not required b) access point is must c) nodes are not required d) all nodes are access points
Last Answer : a) access point is not required
Description : What is the access point (AP) in a wireless LAN? a) device that allows wireless devices to connect to a wired network b) wireless devices itself c) both device that allows wireless devices to connect to a wired network and wireless devices itself d) all the nodes in the network
Last Answer : a) device that allows wireless devices to connect to a wired network
Description : What is WISP? a) Wideband Internet Service Protocol b) Wireless Internet Service Provider c) Wireless Instantaneous Source Provider d) Wideband Internet Source Protocol
Last Answer : b) Wireless Internet Service Provider
Description : What is the full form of WLAN? a) Wide Local Area Network b) Wireless Local Area Network c) Wireless Land Access Network d) Wireless Local Area Node
Last Answer : b) Wireless Local Area Network
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 : In a wireless communication, base station is connected to central hub called _______ a) PSTN b) MSC c) CO d) PBX
Last Answer : b) MSC
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 : What is the raw channel bit error rate of Bluetooth? a) 10-3 b) 10-10 c) 103 d) 10-1
Last Answer : a) 10-3
Description : What is the channel symbol rate in Bluetooth for each user? a) 270.833 Kbps b) 1 Gbps c) 100 Mbps d) 1 Mbps
Last Answer : d) 1 Mbps
Description : Which of the following channel is used by base station to provide forward link communication to mobile? a) RACH b) AGCH c) DCCH d) PCH
Last Answer : b) AGCH
Description : ___________ is a reverse link channel used by a subscriber unit to acknowledge. a) RACH b) AGCH c) DCCH d) PCH
Last Answer : a) RACH
Description : Which of the following channel provides paging signals from base station to all mobiles in the cell? a) RACH b) AGCH c) DCCH d) PCH
Last Answer : d) PCH
Description : Which of the following channel does not come under CCCH? a) PCH b) RACH c) DCCH d) AGCH
Last Answer : c) DCCH
Description : Which of the following is the forward control channel that is used to broadcast information? a) BCCH b) CCCH c) DCCH d) TCH
Last Answer : a) BCCH
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 : 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 : How is bandwidth increased in Cdma2000? a) Clubbing adjacent radio channels b) Changing the hardware of base stations c) Change of spectrum d) Change of RF equipment
Last Answer : a) Clubbing adjacent radio channels
Description : HIPER-LAN stands for ____________ a) High Precision Radio Local Area Network b) High Performance Radio Local Area Network c) High Precision Radio Land Area Network d) Huge Performance Radio Link Access Node
Last Answer : b) High Performance Radio Local Area Network
Description : Which of the following subsystem provides radio transmission between mobile station and MSC? a) BSS b) NSS c) OSS d) BSC
Last Answer : a) BSS
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 : While exploring the wilds of Canada, George was captured by hostile wood fairies. Zion, the powerful chief of the fairies told him he could make one final statement which would determine how he ... out of this seemingly impossible situation. What is the one statement he could have made? -Riddles
Last Answer : George said: 'You will boil me in water.' The fairies were faced with a dilemma. If they boil him in water, that would make his statement true, which means he should have been fried in oil. ... statement false. The fairies had no way our of their situation so they were forced to set George free.
Description : While exploring the wilds of Canada, Wild Man Dave was captured by hostile wood fairies. Brad, the powerful chief of the fairies told him he could make one final statement which would determine ... out of this seemingly impossible situation. What is the one statement he could have made? -Riddles
Last Answer : Wild Man Dave said: 'You will boil me in water.' The fairies were faced with a dilemma. If they boil him in water, that would make his statement true, which means he should have been fried in oil ... false. The fairies had no way our of their situation so they were forced to set Wild Man Dave free.
Description : Which of the following is not backward compatible with Cdma2000? a) Cdma2000 1xRTT b) Cdma2000 3xRTT c) Cdma2000 1xEV-DO d) Cdma2000 1xEV-DT
Last Answer : c) Cdma2000 1xEV-DO
Description : What are the two options provided by Cdma2000 1xEV? a) Cdma2000 1xRTT. Cdma2000 3xRTT b) Cdma2000 1xEV-DO, Cdma2000 1xEV-DV c) Cdma2000 1xEV-DT, Cdma2000 1xEV-DO d) Cdma2000 1xRTT, Cdma2000 1xEV-DV
Last Answer : b) Cdma2000 1xEV-DO, Cdma2000 1xEV-DV
Description : Cdma2000 1xEV was developed by ________ a) Motorola b) AT&T Laboratories c) Qualcomm d) NTT
Last Answer : c) Qualcomm
Description : Which of the following is not a characteristic of Cdma2000? a) Adaptable baseband signalling rates b) Adaptable baseband chipping rates c) Multicarrier technologies d) OFDMA
Last Answer : d) OFDMA