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 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 : 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 : 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 : 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 : 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 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 : Network layer at source is responsible for creating a packet from data coming from another ________ a) Station b) Link c) Node d) Protocol
Last Answer : d) Protocol
Description : PSTN stands for ________ a) Public switched telephone network b) Personal switched telephone network c) Personal switched telephone node d) Public switched telephone node
Last Answer : a) Public switched telephone network
Description : Which of the following is not a characteristic of 3G network? a) Communication over VoIP b) Unparalleled network capacity c) Multi-megabit Internet access d) LTE based network
Last Answer : d) LTE based network
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 : In public switched telephone network, LATA stands for ______ a) Local access and transport area b) Land area and transport area c) Local access and telephone access d) Local area and telephone access
Last Answer : a) Local access and transport area
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 : Which of the following specifies a set of media access control (MAC) and physical layer specifications for implementing WLANs? a) IEEE 802.16 b) IEEE 802.3 c) IEEE 802.11 d) IEEE 802.15
Last Answer : c) IEEE 802.11
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 : 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 : MSCs provide connectivity between PSTN and the base stations. a) True b) False
Description : Who sets the standards of GSM? a) ITU b) AT & T c) ETSI d) USDC
Last Answer : c) ETSI
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 : The price of WLAN hardware is more than 3G telephones and fixed wireless equipment. a) True b) False
Last Answer : b) False
Description : Wireless networks are extremely hostile and random nature of radio channel. a) True b) False
Description : AIN has different telephone numbers for both wireline and wireless services. a) True b) False
Description : Cdma2000 1xEV was developed by ________ a) Motorola b) AT&T Laboratories c) Qualcomm d) NTT
Last Answer : c) Qualcomm
Description : In PCM encoding, quantization level varies as a function of ________ a) Frequency b) Amplitude c) Square of frequency d) Square of amplitude
Last Answer : b) Amplitude
Description : Quantization noise can be reduced by ________ the number of levels. a) Decreasing b) Increasing c) Doubling d) Squaring
Last Answer : b) Increasing
Description : In IPv4 layer, datagram is of ________ a) Fixed length b) Variable length c) Global length d) Zero length
Last Answer : b) Variable length
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 : UMTS use which multiple access technique? a) CDMA b) TDMA c) FDMA d) SDMA
Last Answer : a) CDMA
Description : What is WPA? a) wi-fi protected access b) wired protected access c) wired process access d) wi-fi process access
Last Answer : a) wi-fi protected access
Description : Transmission protocol, PRMA stands for _________ a) Pocket reservation multiple access b) Packet register multiple access c) Pocket register multiple access d) Packet reservation multiple access
Last Answer : d) Packet reservation multiple access
Description : LATAs are connected by a company called _________ a) Land exchange carrier b) Local exchange carrier c) Local control exchange d) Land area exchange
Last Answer : b) Local exchange carrier
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 : Checksum is used in Internet by several protocols although not at the _________ a) Session layer b) Transport layer c) Network layer d) Data link layer
Last Answer : d) Data link layer
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 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 : Which of the following is not a part of the characteristic of 4G network? a) Multirate management b) Fully converged services c) Software dependency d) Diverse user devices
Last Answer : a) Multirate management
Description : What is the average uploading speed of 4G LTE network? a) 1-3 Gbps b) 2-5 Gbps c) 1-3 Mbps d) 2-5 Mbps
Last Answer : d) 2-5 Mbps
Description : Concept of PCS/PCN is based on _________ a) Advanced intelligent network b) Artificial intelligent network c) CDPD d) SS7
Last Answer : a) Advanced intelligent network
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 : Protocols are set of rules to govern _________ a) Communication b) Standard c) Metropolitan communication d) Bandwidth
Last Answer : a) Communication
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 : Which is one of the disadvantages of 2G standards? a) Short Messaging Service (SMS) b) Digital modulation c) Limited capacity d) Limited Internet Browsing
Last Answer : d) Limited Internet Browsing
Description : In IPv4, service type of service in header field, first 3 bits are called ______ a) Type of service b) Code bits c) Sync bits d) Precedence bits
Last Answer : d) Precedence bits
Description : Which type of cell provides the best level of service for average subscribers? a) Acceptance cell b) Barred cell c) Reserved cell d) Suitable cell
Last Answer : d) Suitable cell
Description : In IEEE 802.11, a___ is made of stationary or mobile wireless stations and anoptional central base station, known as the access point (AP). A) ESS B) BSS C) CSS D) none of the above
Last Answer : BSS
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