Time: 1hour Max. Marks: 50

Q Wireless body area network has

A unlimited power consumption.

A unlimited memory

A limited Computational power

A unlimited Energy resources

Q An electromyography (EMG) sensor is for monitoring the activity of

A Brain

A Muscle

A Respiration

A Heart

Q An electroencephalography (EEG) sensor is for monitoring the activity of

A Heart

A Muscle

A Respiration

A Brain

Q What is the full form of WBAN?

A Wireless Body Area Network

A Wireless Breakless Area Network

A Wireless Broad Area Network

A Wire Body Area Network

Q In WBAN,_________________ ensures the communication between the sink and an external network.

A extra-body communication

A on-body communication

A small-body communication

A large-body communication

Q In WBAN, due to the network’s proximity to the human body, electromagnetic pollution should be _______

A moderate

A high

A extremely low

A extremely high.

Q In WBAN, compared with inductive coupling,RF communication ______________for communication.

A dramatically decreases bandwidth

A dramatically increases bandwidth

Course Code: ECC802 And Course Name: Wireless Networks

Note to the students:- All the Questions are compulsory and carry equal marks .

These are sample MCQs to indicate pattern, may or may

not appear in examination

Mahatma Education Society’s

Pillai HOC College of Engineering and Technology

Program: BE Electronics and Tele communication Engineering

Curriculum Scheme: Revised 2016

Examination: BE SEM VIII

A dramatically decreases power consumption

A dramatically increases power consumption

Q In WBAN, sampling rate of ___________ is considered to be sufficient without loosing any information.

A 100–1000 Hz

A 10–100 Hz

A 10–100 KHz

A 1–10 Hz

Q TCP/IP model does not have

A Session layer

A Application layer

A Network layer

A Data link layer

Q The OSI reference model has

A Five layers

A Four layers

A Six layers

A Seven layers

Q Signal-to-noise ratio (SNR) is given by

A Pr*Pn

A Pr/Pn

A Pn/Pr

A Pn*Pr

Q In flat fading, which degree of fading takes place for all of the frequency components transmitted through a radio channel?

A Different

A Half

A Same

A Double

Q At a receiver, the captured power Pr of an antenna is given by the equation

A Pr = Pt*(4πd/λ)2

A Pr = Pt/(4πd/λ)2

A Pr = Pt/(4π*λ)2

A Pr = Pt/(4π/λ)2

Q The _____________defines physical specifications of communication protocol standards for the short-range exchange of data over infrared light in WPANs.

A UDP

A IrDA

A TCP/IP

A RFID

Q _____________are virtual circuits that are dynamically established on demand and terminated when transmission is complete.

A Temporary virtual circuits

A Dynamic virtual circuits

A Permanent virtual circuits

A Switched virtual circuits

Q ____________occurs when a propagating electromagnetic wave strikes an object which has very large dimensions in comparison to the wavelength of the propagating wave.

A Diffraction

A Deflection

A Reflection

A Refraction

Q _______________mechanisms are needed to prevent buffer overflow.

A Overcrowding Control

A Error Control

A Flow control

A Congestion Control

Q Which one of the following is used for peer-peer Application ?

A IEEE 802.15

A IEEE 802.16

A IEEE 802.11

A IEEE 802.10

Q The transmitter power of a transmitter is 20 mW operating at a frequency of 75 MHz. At a distance of 500 m, a mobile phone establishes the communication with this transmitter. Find the captured power.

A 0.01µW

A 10µW

A 100µW

A 1µW

Q A wireless personal area network is also known as

A Large wireless distance network

A Personal long distance network

A Personal short distance network

A Short wireless distance network

Q Connectivity topologies defined in WPAN are

A Scatternet

A Both piconet and scatternet

A LAN

A Only piconet

Q Logical link control and adaptation protocol implement

A Multiplexing

A Error control

A Flow control

A Demultiplexing

Q ZigBee system consists of

A RFD

A FFD

A PFD

A FFD or RFD

Q Which of the following is not true for UWB?

A Lower price

A Pulse data

A Large spectrum

A Large interference

Q A wireless technology that allows manufacturers to attach tags with antennas and computer chips to goods and then track their movement through radio signals

A Wireless Sensor Networks (WSN)

A Wireless Fidelity (WiFi)

A Near-Field Communication (NFC)

A Radio-Frequency Identification (RFID) Technology

Q _______________ standard known by _______________ has been drafted for lowrate WPAN (LR-WPAN).

A 802.15.1 ; ZigBee

A 802.15.4 ; ZigBee

A 802.15.3 ; UWB

A 802.15.4 ; Bluetooth

Q Bluetooth is named after a(n) ____________ king.

A Swiss

A English

A Danish

A German

Q Which of the following is NOT true about Bluetooth?

A Bluetooth has a bandwidth of 720 kbps.

A Bluetooth has a range of about 30 feet.

A Bluetooth is considered to be a long-distance wireless technology.

A Bluetooth is considered to be low bandwidth wireless technology.

Q Which of the following is NOT a device that is likely to use Bluetooth technology?

A PDA

A cell phone

A toy

A high-speed router

Q A ____________ medium access control address used to distinguish between units participating in the piconet.

A 8-bit

A 4-bit

A 5-bit

A 3-bit

Q The ______________ is responsible for the process of searching for other devices and establishing a connection with them.

A L2CAP layer

A HCI layer

A Logocal Link layer

A baseband layer

Q Which of the following is not a low power state in Bluetooth

A Connected

A Sniff

A Park

A Hold

Q In cluster Tree topology, a PAN coordinator forms the cluster with a cluster identifier of________

A F

A 0

A 2

A 1

Q RFID stands for __________________________

A Radio-Frequency Indication

A Radio-Fault Indication

A Radio-Frequency Identification

A Radio-Frequency Interconnection

Q WLAN adapter provide the interface between the___________ and a/an ______

A Network devies, wire

A wire, antenna

A network operating system, antenna

A network operating system, wire

Q APs have a range from _______________

A 0.5 to 1 Km

A 10 to 20 meters.

A 20 to 500 meters.

A 1 to 2 Km

Q Ad hoc mode is also called as?

A Peer-to-peer mode

A Point-to-multipoint bridge topology

A Line of sight mode

A Access Point based topology

Q UHF wireless data communication systems normally transmit in the_______ frequency range

A 890 to 915MHz

A 540MHz -580MHz

A 430 to 470 MHz

A 2.4-2.410GHz

Q ____________generates a redundant bit pattern for each bit to be transmitted

A DHSS

A DSSS

A FHSS

A FSSS

Q Which of the following is the IEEE standard for WLAN?

A 802.15

A 802.16

A 802.11

A 802.2

Q In WLAN which of the following network architecture is used to support mutual communication between wireless clients?

A virtual network

A Infrastructure network

A client sever network

A Point-to-point (ad hoc) network

Q ___________ configuraMon is analogous to a peer-to-peer officenetwork

A IBSS

A ISS

A ESS

A BSS

Q In Joining an ExisMng Basic Service Set ,reassociaMng occurs due to changes in radio characterisMcs in the building, or due to high network traffic on

A Load reassociating

A Load balancing

A Traffic reassociating

A Traffic balancing

Q The case in which the station tries to locate an AP by transmitting probe request frame, and waits for probe response from the AP is called as?

A Active scanning

A Passive scanning

A Dynamic scanning

A Static scanning

Q In power utilization mode where the radio is dozing with the AP and is queuing any data for it is called as__________

A continuous aware mode

A Power efficient mode

A Enhance power mode

A power save polling mode

Q IEEE 802.11b offers maximum speed of____

A 22 Mbps

A 44 Mbps

A 33 Mbps

A 11 Mbps

Q Packet binary convolutional coding (PBCC) is an optional coding scheme defined in______________

A IEEE 802.11p

A IEEE 802.11b

A IEEE 802.11n

A IEEE 802.11a

Q To increase the data rate in 802.11b standard _______ used

A CCK

A DSSS

A OFDMA

A LDPC

Q Wireless metropolitan area networkmeans______________

A Wired technology being used for connecting components

A Wireless technology employed

A Both wired and wireless technologybeing used

A terrestrial network

Q The 802.16a specifies protocol that supports________

A Low latency applications

A High latency applications

A Both low latency and high latencyapplicaMons

A dynamic latency application

Q Which of the following network isdefined by both 802.11 and 802.16?

A P2P network

A Ad hoc network

A Both P2P and Ad hoc network

A Multipoint-to-Multipoint Network

Q An OFDM signal consists of____________

A Many orthogonal signals

A Single signal

A Many non-orthogonal signals

A Multiple signal

Q The technologies that support broadband wireless networks are_______

A WLL and LMDS

A MMDS and Wireless ATM

A WLL ,LMDS, MMDS and Wireless ATM

A Only WLL

Q The application-level protocol in which a few manager stations control a set of agents is called ___

A SNMP

A HTTP

A SNMP/IP

A TCP

Q An increase in sensor density by a factor of k improves the SNR at a sensor by

A 20 LOG K

A 15 LOG K

A 10 LOG K

A 30 LOG K

Q The RF attenuation model near the ground is given by

A PSEND X PRECEIVE/r

A PSTOP/r

A PSTART/r

A PRECEIVE X PSEND/r

Q Following MAC protocols have been developed for wireless voice and data communication

A WLAN

A CDMA,CSMA

A WLAN, TDMA, FDMA, CDMA, CSMA

A TDMA, FDMA

Q 1f G contains the Delaunay triangulation of V, then the

A MUF

A GREEDY DISTANCE

A PERIODIC DISTANCE

A COMPASS

Q We can start with a small guess and double it every tirne we fail to reach d with our current guess, until d is reached. This defines versions of the perimeter protocol called

A OAFR

A ADAPTIVE PERIMETER

A COMPASS

A OAFR & ADAPTIVE PERIMETER

Q The minimum energy problem for both general and graphs is__________complete

A NP

A NZ

A NRZ

A PN

Q wrt docks and communication delays, a typical value of p for today's hardware dock is 10-____

A 12

A 3

A 9

A 6

Q The problem of for a sensor network is how to set the radio tange for each node so usage, while sMll ensuring that the communicaMon graph of the nodes

A FLOORING

A CLUSTERING

A TRAFFIC MONITORING

A TOPOLOGY CONTROL

Q What is the type of network in which the topology change from time to time?

A Cell Network

A LAN

A Wi-Fi

A MANET

Q The Media Access Control layer frame has

A 9 Fields

A 11 Fields

A 7 Fields

A 5 Fields

Q What is the access point (AP) in a wireless LAN?

A device that allows wireless devices to connect to a wired network

A both device that allows wireless devices to connect to a wired network and wireless devices itself

A all the nodes in the network

A wireless devices itself

Q A wireless network interface controller can work in _______

A infrastructure mode

A ad-hoc mode

A both infrastructure mode and ad-hoc mode

A WDS mode

Q Which one of the following event is not possible in wireless LAN?

A collision detection

A acknowledgement of data frames

A multi-mode data transmission

A connection to wired networks

Q What is WPA?

A wi-fi protected access

A wired protected access

A wired process access

A wi-fi process access

Q Ad-hoc network to connect each computer using network topology

A bus

A star

A mesh

A ring

Q What is the size of MAC Address?

A 16-bits

A 32-bits

A 48-bits

A 64-bits

Q Networking Hardware Address is referred with ________

A IP address

A MAC address

A NIC

A Organizationally Unique Identifier

Q MAC addresses are used as ________

A Network addresses

A IP address

A Hardware address

A Burned in address

Q The original IEEE 802 MAC address comes from________

A MAC address

A IP address

A Ethernet address

A Http

Q What translates IP address into MAC address?

A Organizationally Unique Identifier

A Address Resolution Protocol

A Network Interface Card

A Burned In Address

Q VANETs were first mentioned and introduced in ___

A 2000

A 2001

A 2002

A 2003

Q VANETs were seen as a mere one-to-one application of ____ principles.

A WARNET

A WANET

A MANET

A WNET

Q VANETs support a ______ of applications

A narrow range

A double range

A single range

A wide range

Q Traffic information systems, which use ___

A WARNET

A WANET

A VANET

A WNET

Q A true MANET by definition requires_____ routing

A multicast

A Unicast

A broadcast

A narrowcast

Q iMANETs stands for

A Internet-based mobile ad hoc networks

A International mobile ad hoc networks

A Internal mobile ad hoc networks

A Interchange mobile ad hoc networks

Q InVANETs stands for

A Internal vehicular ad hoc networks

A Intelligent vehicular ad hoc networks

A International vehicular ad hoc networks

A Intellitual vehicular ad hoc networks

Q In _______ methods, a station cannot send unless it has been authorized by other stations.

A random access

A controlled access

A channelization

A Mobilization

Q A sensor network is

A Consists of a large number of sensornodes

A Consists of a small number of sensornodes

A Consists of infinite number of sensornodes

A Consists of a zero number of sensornodes

Q Route-computation & maintenance must involve a ________ no. of nodes.

A maximun

A minimum

A infinite

A zero

Q _______ designed for WSN should support data centric communication.

A data

A middleware

A node

A network

Q __________ of WSN may change frequently and hence, middleware must be designed in such a way so as to support the robust sensor network operation by adapting to the changes in the networks.

A Topology

A Technolgy

A sensors

A nodes

Q After the sensor nodes are deployed, they are responsible for self-organizing an appropriate network infrastructure often with________with them.

A multi-hop communication

A simplex communication

A half duplex communication

A full duplex communication

Q __________ consumption is the most important factor to determine the life of a sensor network because usually sensor nodes are driven by battery.

A power

A current

A voltage

A Energy

Q The advantage of this type of network for wireless sensor networks includes simplicity, ability to keep the remote node’s power consumption to a _______.

A maximum

A zero

A minimum

A infinite

Q In WSN the microprocessor managing data collection from the

A node

A sensors

A topology

A network

Q A fourth class of routing protocols

A uses a data-centric approach

A imposes a structure on the network

A adopts a flat network architecture

A uses location to address a sensor node.

Q A second class of routing protocols

A uses a data-centric approach

A imposes a structure on the network

A adopts a flat network architecture

A uses location to address a sensor node.

Q ________ is a common technique frequently used for path discovery and information dissemination in wired and wireless ad hoc networks

A Flooding

A networking

A upgrading

A Clustering

Q MQTT stands for _____________

A MQ Telemetry Things

A MQ Transport Telemetry

A MQ Telemetry Transport

A MQ Transport Things

Q Global Sensor Network is built for ________

A Reducing cost and increasing time for development

A Increasing cost and decreasing time for development

A Reducing cost and time for development

A Increasing cost and increasing time for development

Q A fixed transmitter antenna points straight at the receiver is known as_________

A line of sight

A Direct sight

A perfect reception

A Quality of sight

Q Which is not correct specification of the Wireless MAN-OFDM Physical Interface?

A Support of P2P, P2M

A frequency band > 11GHz

A 256 Subacarrier

A Support both TDD & FDD

Q What is cause of fading?

A The presence of obstacle between reciever & transmitter

A The distance between transmitter & reciever

A The reception at the reciever of multiple versions of signal due to multipath propagation

A The ISI

Q Which broadcast message describe the burst profiles that can be used on downlink channels

A DL-MAP

A DUIC

A DCD

A FCH

Q The original IEEE802.11, uses_______

A FHSS

A DSSS

A OFDMA

A Either FHSS or DSSS

Time: 1hour Max. Marks: 50

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Note to the students:- All the Questions are compulsory and carry equal marks .

These are sample MCQs to indicate pattern, may or may

Pillai HOC College of Engineering and Technology

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