CS601-Midterm
1 / 50
There are _____ possible variations of 16 QAM.
2 / 50
At the ______________layer, a DCE takes data generated by a DTE.
3 / 50
A human brain is considered as a ___________
4 / 50
OSI model was developed prior to TCP/IP model.
5 / 50
The bit rate always equals the baud rate in which type of signal?
6 / 50
Effective network mean that the network has fast delivery, timeliness and
7 / 50
3dB is also called as power bandwidth.
8 / 50
Asynchronous transmission is ___________
9 / 50
In transmission the timing of the signal is unimportant.
10 / 50
Frequency band in which 99% of the total power resides is called_______
11 / 50
12 / 50
A set of devices connected by communication links is called networking
13 / 50
Internet with small “i” specifies the world wide Network the actual internet.
14 / 50
15 / 50
Which one best describes the given statement: "To allow multiple users to share total capacity of a transmission medium"
16 / 50
Data synchronization is a function related with ______
17 / 50
We need ____________ to decompose a composite signal into its components.
18 / 50
19 / 50
Amplitude in ASK is more resistive to EMI and Noise.
20 / 50
In mesh topology, if there are five nodes then there will be links.
21 / 50
Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
22 / 50
The _______________ layer changes bits into electromagnetic signals.
23 / 50
24 / 50
Which topology requires a central controller or hub?
25 / 50
Unidirectional traffic movement is overcome by dual ring technology.
26 / 50
Line configuration refers to the way two or more devices attach to a .
27 / 50
28 / 50
Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
29 / 50
The internet model consists of _________ layers.
30 / 50
Set of rules that govern communication is called
31 / 50
requires the maximum number of I/O ports.
32 / 50
Which one is not among standard creation committee.
33 / 50
PCM is the first process of PAM.
34 / 50
ASK, PSK, FSK and QAM are examples of modulation.
35 / 50
36 / 50
ASK, PSK, FSK and QAM are examples of ____ modulation.
37 / 50
TCP/IP model Application layer incorporate OSI Application and presentation
38 / 50
F.M.In differential Manchester we require two transition or signal changes to represent binary_____
39 / 50
40 / 50
A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
41 / 50
Quantization means measuring amplitudes of signal at equal intervals.
42 / 50
A sine wave must be an analog signal.
43 / 50
Asynchronous transmission is
44 / 50
_____________ converts an analog signal into a digital signal.
45 / 50
Frequency of a failure and network recovery time after a failure is measures of the ____________ of a network.
46 / 50
The last modified version of EIA-232 standard is ______________
47 / 50
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
48 / 50
49 / 50
In transmission, a start bit and a stop bit frame a character byte.
50 / 50
Number of signal units per second that are required to represent a bit is called bit rate.
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