CS601-Midterm
1 / 50
A set of devices connected by communication links is called networking
2 / 50
Quantization means measuring amplitudes of signal at equal intervals.
3 / 50
OSI model was developed prior to TCP/IP model.
4 / 50
Frequency band in which 99% of the total power resides is called_______
5 / 50
Data chunk at data link layer is called
6 / 50
7 / 50
_________ requires more bandwidth.
8 / 50
layer is the layer closest to the transmission medium.
9 / 50
A human brain is considered as a ___________
10 / 50
3dB is also called as power bandwidth.
11 / 50
Effective network mean that the network has fast delivery, timeliness and
12 / 50
ASK, PSK, FSK and QAM are examples of modulation.
13 / 50
The last modified version of EIA-232 standard is ______________
14 / 50
Which one is not among standard creation committee.
15 / 50
In mesh topology, if there are five nodes then there will be links.
16 / 50
Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
17 / 50
Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
18 / 50
representation of links that connect nodes is called as physical topology.
19 / 50
Data synchronization is a function related with ___________
20 / 50
In 8QAM each signal shift or one baud represents __________
21 / 50
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
22 / 50
Data synchronization is a function related with ______
23 / 50
Which topology requires a central controller or hub?
24 / 50
Set of rules that govern communication is called
25 / 50
In Alternate mark inversion the term mark comes from_________
26 / 50
The __________ generates the data and passes it along with any control information to a ___________.
27 / 50
_________requires the maximum number of I/O ports.
28 / 50
is a multipoint topology.
29 / 50
The inversion of the level at 1 bit is called as __________
30 / 50
There are _____ possible variations of 16 QAM.
31 / 50
In transmission the timing of the signal is unimportant.
32 / 50
Asynchronous transmission is ___________
33 / 50
TCP/IP model Application layer incorporate OSI Application and presentation
34 / 50
A modulator converts a(n) ____________ signal to a(n) ____________ signal.
35 / 50
Which one best describes the given statement: "To allow multiple users to share total capacity of a transmission medium"
36 / 50
Non proprietary standard is also termed as de facto standard.
37 / 50
Time domain plot show changes in signal phase with respect to time.
38 / 50
Which is not an element of protocol
39 / 50
40 / 50
A sine wave must be an analog signal.
41 / 50
PCM is the first process of PAM.
42 / 50
At the ______________layer, a DCE takes data generated by a DTE.
43 / 50
ASK, PSK, FSK and QAM are examples of ____ modulation.
44 / 50
Number of signal units per second that are required to represent a bit is called bit rate.
45 / 50
In transmission, a start bit and a stop bit frame a character byte.
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47 / 50
The _______________ layer changes bits into electromagnetic signals.
48 / 50
49 / 50
Asynchronous transmission is
50 / 50
The bit rate always equals the baud rate in which type of signal?
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