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WorksheetsEC8702_ADWSN::Unit-2&3_IAT-2
Total questions: 50
Worksheet time: 50mins
Communication capabilities of Ad hoc Network refers to
Ability to organize the network
Ability to transfer information
Ability to identity the failure nodes
Packet loss due to ___________ errors is one of the
Issues in Ad hoc wireless network
Transmission
Node
Characteristics
Which of the following is NOT the Characteristics and
requirements of Ad hoc Wireless Networks
Distributed operation
Dynamic network topology
High-power devices
MAC is the part of which layer?
Physical Layer
Data Link Layer
Application Layer
Session Layer
What is the main issue in MAC Protocol?
Error Conservation
Data Conservation
Water Conservation
Energy Conservation
Energy waste due to
Overhead
Overhearing
Collisions
Idle listening
What are the responsibilities of Data link Layer
Error Control
Flow Control
None of the above
What are the two types of MAC Protocols?
Contention based
Schedule based
Condition based
Session based
LLC stands for
Local Link Control layer
Logical Linkage Control layer
Logical Link Control layer
Local Link Control layer
Provides a fraction of the frequency range to each user for all the time
CDMA
FDMA
TDMA
SDMA
The entire frequency band is allocated to a single user for a fraction of time
SDMA
FDMA
CDMA
TDMA
Types of MAC protocol
Fixed assignment protocols
Demand assignment protocols
Random access protocols
All of the above
What are the methods to spread the bandwidth
Direct sequence
Frequency hoping
Random access protocols are
Partially distributed
Fully distributed
No distributed
If the central node is bleached, the protocol is called
BLEACH
LEACH
COACH
The process of distributing individual sensor observations to the whole network, treating all sensors as sink node is called
Determination
Distribution
Dissemination
The ratio of the listen period length to the wakeup period is also called
Node's half cycle
Node's duty cycle
Node's dutyless cycle
What are the periods available in periodic wakeup scheme?
Wake up period
Sleep period
Listening period
Low duty cycle protocols try to avoid spending (much) the _______________
Idle state
Wake up state
Sleep state
The protocol combines the ____________ solution and RTS/CTS handshake similar to the MACA Protocol
Ring - tone
Busy - tone
What are the channel that PAMAS uses?
Data Channel
Control Channel
TV channel
Radio Channel
PAMAS Protocol provides a detailed _______________ avoidance mechanism
Overhearing
Over head
Collision
Upon each periodic wakeup, a node transmits a (a) query beacon, indicating its node address and its node address and its willingness to accept packets from other nodes
What is the purpose of Mediation Device ?
Dynamic Synchronization
Static Synchronization
When MD register collision, it might start to emit a dedicated reschedule control frame to ______________
All
Neighborhood
Colliding
S-MAC request two different channels
Yes
No
What are the phases of listen period?
Synchronization Phase
RTS Phase
CTS Phase
NAV Stands for
Network Allocation Vector
Node Allocation Vector
Network Alteration Vector
Node Alteration Vector
In routing, messages are forwarded to the router with the lowest cost. What is it meant by cost?
Least amount of money.
How close the IP address is.
Trustworthiness of router.
How fast the connection is.
When using TCP/IP, the metadata has to be labeled with a
to address.
from address.
message size.
order number.
Transport layer aggregates data from different applications into a single stream before passing it to (a)
User datagram protocol is called connectionless because _____________
all UDP packets are treated independently by transport layer
it sends data as a stream of related packets
it is received in the same order as sent order
it sends data very quickly
Transmission control protocol ___________
is a connection-oriented protocol
uses a three way handshake to establish a connection
receives data from application as a single stream
all of the mentioned
Which of the following is a transport layer protocol?
stream control transmission protocol
internet control message protocol
neighbor discovery protocol
dynamic host configuration protocol
TCP/IP model does not have ______ layer but OSI model have this layer.
a) session layer
b) transport layer
c) application layer
d) network layer
Which sublayer of the data link layer performs data link functions that depend upon the type of medium?
a) logical link control sublayer
b) media access control sublayer
c) network interface control sublayer
d) error control sublayer
When does the station B send a positive acknowledgement (ACK) to station A in Stop and Wait protocol?
a. only when no error occurs at the transmission level
b. when retransmission of old packet in a novel frame is necessary
c. only when station B receives frame with errors
d. all of the above
Which layer provides the services to user?
a) application layer
b) session layer
c) presentation layer
d) physical layer
Node to node delivery of the data unit is the responsibility of the ----------- layer
a) Physical
b) Data link
c) Network
d) Transport
Packet loss due to ___________ errors is one of the
Issues in Ad hoc wireless network
Transmission
Node
Characteristics
Dynamic modulation scaling (DMS)
is a technique useful for optimizing _______energy with respect to number of
packets
Transmission
Reception
both A & B
none of these
The construction and usage of
FLASH memory can heavily influence node lifetime.
TRUE
FALSE
Which one is not belonging to
the optimization goal for WSN
Quality of service
scalability
Topology changes
robustness
Definition of Network lifetime
is given as
Time to first node death
Time to 50 % of node death
Time to partition of network
all of them
The ability to maintain
performance characteristics irrespective of the size of the network is
referred to as _______
Robustness
scalability
Quality of Service
none of these
Sensor network applications
requires wireless adhoc networking techniques.
TRUE
FALSE
Traditional wireless adhoc
networks protocols are not well suited to the application requirements of
sensor networks.
TRUE
FALSE
Sensor nodes are
densely deployed
prone to failures
both A & B
none of these
Sensor nodes are limited in
power
computational capacities
memory
all of them
A basic sensor node comprises
___________ main components
Five
Three
Four
Six
