CS601-Midterm
1 / 50
_____________ converts an analog signal into a digital signal.
2 / 50
The inversion of the level at 1 bit is called as __________
3 / 50
Data synchronization is a function related with ______
4 / 50
F.M.In differential Manchester we require two transition or signal changes to represent binary_____
5 / 50
At the ______________layer, a DCE takes data generated by a DTE.
6 / 50
Frequency band in which 99% of the total power resides is called_______
7 / 50
Number of signal units per second that are required to represent a bit is called bit rate.
8 / 50
Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
9 / 50
A modulator converts a(n) ____________ signal to a(n) ____________ signal.
10 / 50
We need ____________ to decompose a composite signal into its components.
11 / 50
OSI model was developed prior to TCP/IP model.
12 / 50
layer is the layer closest to the transmission medium.
13 / 50
The internet model consists of _________ layers.
14 / 50
The _______________ layer changes bits into electromagnetic signals.
15 / 50
Data chunk at data link layer is called
16 / 50
17 / 50
Line configuration refers to the way two or more devices attach to a .
18 / 50
representation of links that connect nodes is called as physical topology.
19 / 50
20 / 50
The last modified version of EIA-232 standard is ______________
21 / 50
Time domain plot show changes in signal phase with respect to time.
22 / 50
23 / 50
The bit rate always equals the baud rate in which type of signal?
24 / 50
is a multipoint topology.
25 / 50
Analog to digital conversion is also termed as modulating an analog signal.
26 / 50
3dB is also called as power bandwidth.
27 / 50
ASK, PSK, FSK and QAM are examples of ____ modulation.
28 / 50
Packet switching is a connection oriented service.
29 / 50
A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
30 / 50
Frequency of a failure and network recovery time after a failure is measures of the ____________ of a network.
31 / 50
PCM is the first process of PAM.
32 / 50
Quantization means measuring amplitudes of signal at equal intervals.
33 / 50
Line configuration refers to the way two or more devices attach to a ______.
34 / 50
Which topology requires a central controller or hub?
35 / 50
In transmission the timing of the signal is unimportant.
36 / 50
Effective network mean that the network has fast delivery, timeliness and
37 / 50
Data synchronization is a function related with ___________
38 / 50
_________ requires more bandwidth.
39 / 50
The internet model consists of layers.
40 / 50
In transmission, a start bit and a stop bit frame a character byte.
41 / 50
TCP/IP model Application layer incorporate OSI Application and presentation
42 / 50
A sine wave must be an analog signal.
43 / 50
Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
44 / 50
Non proprietary standard is also termed as de facto standard.
45 / 50
In 8QAM each signal shift or one baud represents __________
46 / 50
In Alternate mark inversion the term mark comes from_________
47 / 50
Which one best describes the given statement: "To allow multiple users to share total capacity of a transmission medium"
48 / 50
A human brain is considered as a ___________
49 / 50
50 / 50
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