CS601-Midterm
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Set of rules that govern communication is called
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ASK, PSK, FSK and QAM are examples of ____ modulation.
3 / 50
Frequency band in which 99% of the total power resides is called_______
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A modulator converts a(n) ____________ signal to a(n) ____________ signal.
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Asynchronous transmission is
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F.M.In differential Manchester we require two transition or signal changes to represent binary_____
7 / 50
3dB is also called as power bandwidth.
8 / 50
TCP/IP model Application layer incorporate OSI Application and presentation
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Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
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Effective network mean that the network has fast delivery, timeliness and
11 / 50
In transmission the timing of the signal is unimportant.
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Data chunk at data link layer is called
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Quantization means measuring amplitudes of signal at equal intervals.
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A set of devices connected by communication links is called networking
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OSI model was developed prior to TCP/IP model.
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Time domain plot show changes in signal phase with respect to time.
18 / 50
ASK, PSK, FSK and QAM are examples of modulation.
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Which topology requires a central controller or hub?
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There are _____ possible variations of 16 QAM.
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24 / 50
A sine wave must be an analog signal.
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The internet model consists of _________ layers.
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Analog to digital conversion is also termed as modulating an analog signal.
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Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
29 / 50
In transmission, a start bit and a stop bit frame a character byte.
30 / 50
Data synchronization is a function related with ______
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In 8QAM each signal shift or one baud represents __________
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DC component is also termed as Direct current component or a component with non-zero frequency.
34 / 50
Which one is not among standard creation committee.
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The _______________ layer changes bits into electromagnetic signals.
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Number of signal units per second that are required to represent a bit is called bit rate.
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_____________ converts an analog signal into a digital signal.
38 / 50
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
39 / 50
Frequency of a failure and network recovery time after a failure is measures of the ____________ of a network.
40 / 50
Packet switching is a connection oriented service.
41 / 50
requires the maximum number of I/O ports.
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Which is not an element of protocol
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PCM is the first process of PAM.
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Layers 5, 6 and 7 also called as network support layers.
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A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
48 / 50
A human brain is considered as a ___________
49 / 50
Line configuration refers to the way two or more devices attach to a .
50 / 50
In mesh topology, if there are five nodes then there will be links.
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