CS601-Midterm
1 / 50
In 8QAM each signal shift or one baud represents __________
2 / 50
Set of rules that govern communication is called
3 / 50
Number of signal units per second that are required to represent a bit is called bit rate.
4 / 50
Line configuration refers to the way two or more devices attach to a ______.
5 / 50
The _______________ layer changes bits into electromagnetic signals.
6 / 50
Which one is not among standard creation committee.
7 / 50
Data chunk at data link layer is called
8 / 50
The __________ generates the data and passes it along with any control information to a ___________.
9 / 50
Analog to digital conversion is also termed as modulating an analog signal.
10 / 50
_________ requires more bandwidth.
11 / 50
A modulator converts a(n) ____________ signal to a(n) ____________ signal.
12 / 50
_____________ converts an analog signal into a digital signal.
13 / 50
A human brain is considered as a ___________
14 / 50
Data synchronization is a function related with ______
15 / 50
Data synchronization is a function related with ___________
16 / 50
A set of devices connected by communication links is called networking
17 / 50
Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
18 / 50
The internet model consists of layers.
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Packet switching is a connection oriented service.
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OSI model was developed prior to TCP/IP model.
22 / 50
TCP/IP model Application layer incorporate OSI Application and presentation
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Data link layer deals with mechanical and electrical specifications of transmission medium and interface
24 / 50
A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
25 / 50
Frequency band in which 99% of the total power resides is called_______
26 / 50
There are _____ possible variations of 16 QAM.
27 / 50
Which one best describes the given statement: "To allow multiple users to share total capacity of a transmission medium"
28 / 50
A sine wave must be an analog signal.
29 / 50
Effective network mean that the network has fast delivery, timeliness and
30 / 50
layer is the layer closest to the transmission medium.
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36 / 50
In Alternate mark inversion the term mark comes from_________
37 / 50
ASK, PSK, FSK and QAM are examples of ____ modulation.
38 / 50
Time domain plot show changes in signal phase with respect to time.
39 / 50
Amplitude in ASK is more resistive to EMI and Noise.
40 / 50
_________requires the maximum number of I/O ports.
41 / 50
Internet with small “i” specifies the world wide Network the actual internet.
42 / 50
requires the maximum number of I/O ports.
43 / 50
Which topology requires a central controller or hub?
44 / 50
Asynchronous transmission is ___________
45 / 50
DC component is also termed as Direct current component or a component with non-zero frequency.
46 / 50
The bit rate always equals the baud rate in which type of signal?
47 / 50
Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
48 / 50
Quantization means measuring amplitudes of signal at equal intervals.
49 / 50
At the ______________layer, a DCE takes data generated by a DTE.
50 / 50
In mesh topology, if there are five nodes then there will be links.
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