Effective network means that the network has fast delivery, timeliness and
Ø high bandwidth
Ø duplex transmission
Ø accurate transmission (P6)
Ø low bandwidth
A set of devices connected by communication links is called networking
Ø True (P12)
Ø False
_______ is a multipoint topology.
Ø Ring
Ø Mesh
Ø Tree
Ø Bus
_________requires the maximum number of I/O ports.
Ø Bus
Ø Star
Ø Mesh (P29)
Ø Ring
Unidirectional traffic movement is overcome by dual ring technology.
Ø True (P33)
Ø False
As the data packet moves from the lower to the upper layers, headers are
__________.
Ø added
Ø subtracted
Ø rearranged
Ø modified
Data chunk at data link layer is called________
Ø frame
Ø packet (P38)
Ø datagram
The _________ layer is the layer closest to the transmission medium.
Ø Physical (PAGE45)
Ø data link
Ø network
Ø transport
Data synchronization is a function related with ___________
Ø session layer (page 51)
Ø presentation layer
Ø transport
Which layer is responsible for a source to destination delivery of entire message?
Ø transport layer (P59)
Ø network layer
Ø session layer
Ø application layer
Encryption and encoding are the same terms.
Ø True
Ø False (P52)
TCP/IP model Application layer incorporate OSI Application and presentation
Ø layers
Ø True
Ø False
A sine wave must be an analog signal.
Ø True (P58)
Ø False
Question No: 14 ( Marks: 1 ) - Please choose one periodic signal can always be decomposed into _____________
Ø exactly an odd number of sine waves
Ø a set of sine waves
Ø set of sine waves, one of them which must have a phase of 00
Ø none of the given (P58)
Manchester is a type of ____________encoding.
Ø Biphase (P75)
Ø polar
Ø biphase & polar
Ø none of the given
The powerful carrier signal is called as the___________
Ø carrier frequency (P86)
Ø base signal
Ø carrier frequency and base signal
Ø none of given
Modulation of an analog signal can be accomplished through changing the
___________ of the carrier signal.
Ø amplitude
Ø frequency
Ø phase
Ø all of the given (P58)
In _____________ transmission, bits are transmitted over a single wire, one at a
time.
Ø Asynchronous serial
Ø Synchronous serial
Ø Parallel (P99)
Ø Asynchronous & Synchronous serial
In RS 422 Balanced mode two lines carry ________ signals which are not
identical to each other.
Ø Same (P109)
Ø different
Ø digital
Ø analog
A ______________ converts an analog signal into a digital signal.
Ø Demodulator (P110)
Ø Modulator
Ø Digital-to-analog converter
