CS8591 COMPUTER NETWORK MCQ – CS8591 WIFI MCQ IMPORTANT QUIZ

CS8591 COMPUTER NETWORK MCQ – CS8591 WIFI MCQ IMPORTANT QUIZ

  • What is the access point (AP) in a wireless LAN?  Device that allows wireless devices to connect to a wired network
  • In wireless ad-hoc network? access point is not required
  • Which multiple access technique is used by IEEE 802.11 standard for wireless LAN? CSMA/CA
  • In wireless distribution system multiple access point are inter-connected with each other
  • A wireless network interface controller can work in? both infrastructure mode and ad-hoc mode
  • In wireless network an extended service set is a set of? connected basic service sets
  • Mostly orthogonal frequency division multiplexing is used in wireless LAN
  • Which one of the following event is not possible in wireless LAN? collision detection
  •  What is Wired Equivalent Privacy (WEP)? security algorithm for wireless networks
  • What is WPA? wi-fi protected access
  • WLANs use high power levels and generally require a license for spectrum use? True
  • What is the name of 300 MHz of unlicensed spectrum allocated by FCC in ISM band? UNII
  • Which of the following specifies a set of media access control (MAC) and physical layer specifications for implementing WLANs? IEEE 802.11
  • Which of the following is the standard of WLAN? HIPER-LAN, HIPERLAN/2, IEEE 802.11b
  • AMPS is a standard of first generation network
  • Which of the following is the 802.11 High Rate Standard? 802.11b
  • Which of the following spread spectrum techniques were used in the original IEEE 802.11 standard? FHSS and DSSS
  • Which of the following WLAN standard has been named Wi-Fi? DSSS IEEE 802.11b
  • Which of the following is developing CCK-OFDM? IEEE 802.11g
  • What is the data rate of HomeRF 2.0? 10mbps
  • HIPER-LAN stands for High Performance Radio Local Area Network
  • What is the range of asynchronous user data rates provided by HIPER-LAN? 1-20 Mbps
  • What is the name of the European WLAN standard that provides user data rate upto 54 Mbps? HIPERLAN/2
  • What is WISP? Wireless Internet Service Provider
  • The price of WLAN hardware is more than 3G telephones and fixed wireless equipment? False
  • Which label hierarchy exhibits the zero value of S-bit except the last bit with value equal to unity? Label Stack
  • Which scheme/ strategy is suitable to establish the communication between the access point (AP) and the infrastructure of LANs? Wired
  • What conclusion can be drawn if the collision is detected in CSMA/CD algorithm while controlling the access in wireless LANs? Non-reception of frame & necessity of retransmission
  • Which among the following represents the building blocks of wireless LANs? BSS
  • Which method of multiple secondary communication in TDMA is acquired/adopted by bluetooth especially where data integrity becomes more crucial than avoiding latency? Asynchronous Connectionless Link (ACL)
  • Which protocol performs the functional operation of breaking the frames into several cells in an Asynchronous Transfer Mode (ATM)? ATM Adaptation Layer
  • Which among the below illustrations represents the variable bit rate type of ATM? Compressed voice/ video with silence suppression
  • What is/are the functions of Segmentation and Reassembly (SAR) sublayer in an ATM adaptation layer? Addition of headers and trailers to data units for cell payload formation
  • Which among the AAL protocol/s allow/s the CS checksum of about 32 bits? AAL-5
  • A Bluetooth network consists of ONE primary device(s) and up to SEVEN secondary devices.
  • A Bluetooth network is called a? Piconet
  • Bluetooth is a wireless LAN technology that connects devices (called gadgets) in a small area.
  • Bluetooth uses DSSS method in the physical layer to avoid interference from other devices or other networks.
  • IEEE 802.11a, has a data rate of? 6 Mbps
  • IEEE 802.11b, has a data rate of? 5.5 Mbps
  • IEEE 802.11g, has a data rate of? 22 Mbps
  • IEEE has defined the specifications for a wireless LAN, called IEEE 802.11, which covers the physical and data link layers
  • In Bluetooth, multiple  piconets  form a network called a scatternet
  • In Bluetooth, the Radio layer is roughly equivalent to the physical layer of the Internet model
  • In Bluetooth, the baseband layer is roughly equivalent to the MAC sublayer in LANs
  • In IEEE 802.11, PCF  is an optional access method that can be implemented in an infrastructure network
  • In IEEE 802.11, a BSS is made of stationary or mobile wireless stations and an optional central base station, known as the access point (AP)
  • In IEEE 802.11, a BSS with an AP is sometimes referred to as Infrastructure Network
  • In IEEE 802.11, a BSS without an AP is called an an ad hoc architecture
  • In IEEE 802.11, a station with BSS-transition mobility can move from one BSS to another, but the movement is confined inside one ESS
  • In IEEE 802.11, a station with ESS-transition mobility can move from one ESS to another
  • In IEEE 802.11, a station with no-transition mobility is either stationary (not moving) or moving only inside a BSS
  • In IEEE 802.11, communication between two stations in two different BSSs usually occurs via two ACCESS POINTS
  • In IEEE 802.11, the NAV is a timer used for collision avoidance
  • In IEEE 802.11, the access method used in the DCF sublayer is? CSMA/CA
  • In IEEE 802.11, the access method used in the PCF sublayer is? polling
  • In IEEE 802.11, the addressing mechanism can include up to four addresses
  • In IEEE 802.11, when a frame is going from one AP to another AP in a wireless distribution system, the address flag is? 11
  • In IEEE 802.11, when a frame is going from one station in a BSS to another without passing through the distribution system, the address flag is? 00
  • The access method in Bluetooth is? TDD-TDMA
  • The IEEE 802.11 standard for wireless LANs defines two services? BSS & ESS
  • The IEEE 802.11 wireless LANs use howmany types of frames? None
  • The IEEE 802.11a, uses? OFDM
  • The IEEE 802.11b, uses?  DSSS
  • The IEEE 802.11g, uses? OFDM
  • The original IEEE 802.11, uses? FHSS & DSSS
  • The RTS and CTS frames in CSMA/CA can solve the? hidden station problem
  • The RTS and CTS frames in CSMA/CA cannot solve the? exposed station problem
  • The access method base band layer is? TDMA
  • IEEE 802.11 have three categories of? Frames
  • A BSS without an access point is an? Adhoc network
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