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This is a computer science engineering quiz on computer networks, which includes questions based on the OSI model i.e, the open systems interconnection model.
Which one of the following network uses dynamic or adaptive routing?
The physical layer is concerned with ___________.
Bit-by-bit delivery
Process to process delivery
Application to application delivery
Port to port delivery
Which transmission media provides the highest transmission speed in a network?
Coaxial cable
Twisted pair cable
Optical fiber
Electrical cable
Bits can be sent over guided and unguided media as analog signal by ___________.
Digital modulation
Amplitude modulation
Frequency modulation
Phase modulation
The portion of the physical layer that interfaces with the media access control sublayer are called ___________.
Physical signalling sublayer
Physical data sublayer
Physical address sublayer
Physical transport sublayer
The physical layer provides __________.
Mechanical specifications of electrical connectors and cables
Electrical specification of transmission line signal level
Specification for IR over optical fiber
All of the mentioned
In asynchronous serial communication the physical layer provides ___________.
Start and stop signalling
Flow control
Both start & stop signalling and flow control
Only start signalling
The physical layer is responsible for __________.
Line coding
Channel coding
Modulation
All of the mentioned
The physical layer translates logical communication requests from the ______ into hardware specific operations.
Data link layer
Network layer
Transport layer
Application layer
A single channel is shared by multiple signals by ____________.
Analog modulation
Digital modulation
Multiplexing
Phase modulation
Start and stop bits are used in serial communication for?
Error detection
Error correction
Synchronization
Slowing down the communication
An unmodulated signal coming from a transmitter is known as?
Carrier signal
Baseband signal
Primary signal
None of these
The number of cross point needed for 10 lines in a cross-point switch which is full-duplex in nature and there is no self-connection is____________.
100
45
50
90
Maximum data rate of a channel for a noiseless 3-kHz binary channel is?
3000bps
6000 bps
1500 bps
None of these
The data link layer takes the packets from _________ and encapsulates them into frames for transmission.
Network layer
Physical layer
Transport layer
Application layer
