CS601-Midterm
1 / 50
Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
2 / 50
The _______________ layer changes bits into electromagnetic signals.
3 / 50
OSI model was developed prior to TCP/IP model.
4 / 50
In mesh topology, if there are five nodes then there will be links.
5 / 50
TCP/IP model Application layer incorporate OSI Application and presentation
6 / 50
The __________ generates the data and passes it along with any control information to a ___________.
7 / 50
Frequency of a failure and network recovery time after a failure is measures of the ____________ of a network.
8 / 50
Number of signal units per second that are required to represent a bit is called bit rate.
9 / 50
layer is the layer closest to the transmission medium.
10 / 50
Packet switching is a connection oriented service.
11 / 50
Analog to digital conversion is also termed as modulating an analog signal.
12 / 50
is a multipoint topology.
13 / 50
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
14 / 50
In transmission the timing of the signal is unimportant.
15 / 50
In 8QAM each signal shift or one baud represents __________
16 / 50
Which topology requires a central controller or hub?
17 / 50
Time domain plot show changes in signal phase with respect to time.
18 / 50
The bit rate always equals the baud rate in which type of signal?
19 / 50
Asynchronous transmission is
20 / 50
Quantization means measuring amplitudes of signal at equal intervals.
21 / 50
Effective network mean that the network has fast delivery, timeliness and
22 / 50
Line configuration refers to the way two or more devices attach to a ______.
23 / 50
requires the maximum number of I/O ports.
24 / 50
DC component is also termed as Direct current component or a component with non-zero frequency.
25 / 50
Data chunk at data link layer is called
26 / 50
A sine wave must be an analog signal.
27 / 50
ASK, PSK, FSK and QAM are examples of ____ modulation.
28 / 50
Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
29 / 50
Layers 5, 6 and 7 also called as network support layers.
30 / 50
31 / 50
Which one best describes the given statement: "To allow multiple users to share total capacity of a transmission medium"
32 / 50
In transmission, a start bit and a stop bit frame a character byte.
33 / 50
Set of rules that govern communication is called
34 / 50
Amplitude in ASK is more resistive to EMI and Noise.
35 / 50
Data synchronization is a function related with ___________
36 / 50
A modulator converts a(n) ____________ signal to a(n) ____________ signal.
37 / 50
Which is not an element of protocol
38 / 50
_____________ converts an analog signal into a digital signal.
39 / 50
Frequency band in which 99% of the total power resides is called_______
40 / 50
Which one is not among standard creation committee.
41 / 50
_________requires the maximum number of I/O ports.
42 / 50
43 / 50
44 / 50
Data synchronization is a function related with ______
45 / 50
A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
46 / 50
Non proprietary standard is also termed as de facto standard.
47 / 50
At the ______________layer, a DCE takes data generated by a DTE.
48 / 50
There are _____ possible variations of 16 QAM.
49 / 50
3dB is also called as power bandwidth.
50 / 50
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