CS601-Midterm
1 / 50
Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
2 / 50
3 / 50
Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
4 / 50
In transmission the timing of the signal is unimportant.
5 / 50
Which topology requires a central controller or hub?
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In mesh topology, if there are five nodes then there will be links.
7 / 50
Analog to digital conversion is also termed as modulating an analog signal.
8 / 50
The _______________ layer changes bits into electromagnetic signals.
9 / 50
We need ____________ to decompose a composite signal into its components.
10 / 50
The inversion of the level at 1 bit is called as __________
11 / 50
Which is not an element of protocol
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Effective network mean that the network has fast delivery, timeliness and
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requires the maximum number of I/O ports.
14 / 50
Asynchronous transmission is
15 / 50
Which one best describes the given statement: "To allow multiple users to share total capacity of a transmission medium"
16 / 50
_________requires the maximum number of I/O ports.
17 / 50
Quantization means measuring amplitudes of signal at equal intervals.
18 / 50
A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
19 / 50
OSI model was developed prior to TCP/IP model.
20 / 50
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
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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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representation of links that connect nodes is called as physical topology.
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Which one is not among standard creation committee.
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25 / 50
In transmission, a start bit and a stop bit frame a character byte.
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Packet switching is a connection oriented service.
27 / 50
Frequency band in which 99% of the total power resides is called_______
28 / 50
Time domain plot show changes in signal phase with respect to time.
29 / 50
Frequency of a failure and network recovery time after a failure is measures of the ____________ of a network.
30 / 50
_________ requires more bandwidth.
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Data synchronization is a function related with ___________
32 / 50
Layers 5, 6 and 7 also called as network support layers.
33 / 50
Non proprietary standard is also termed as de facto standard.
34 / 50
The __________ generates the data and passes it along with any control information to a ___________.
35 / 50
The last modified version of EIA-232 standard is ______________
36 / 50
Asynchronous transmission is ___________
37 / 50
A sine wave must be an analog signal.
38 / 50
A human brain is considered as a ___________
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40 / 50
layer is the layer closest to the transmission medium.
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42 / 50
is a multipoint topology.
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The internet model consists of layers.
44 / 50
DC component is also termed as Direct current component or a component with non-zero frequency.
45 / 50
Internet with small “i” specifies the world wide Network the actual internet.
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47 / 50
In Alternate mark inversion the term mark comes from_________
48 / 50
ASK, PSK, FSK and QAM are examples of ____ modulation.
49 / 50
At the ______________layer, a DCE takes data generated by a DTE.
50 / 50
In 8QAM each signal shift or one baud represents __________
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