CS601-Midterm
1 / 50
There are _____ possible variations of 16 QAM.
2 / 50
The internet model consists of layers.
3 / 50
In 8QAM each signal shift or one baud represents __________
4 / 50
Data synchronization is a function related with ___________
5 / 50
A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
6 / 50
Analog to digital conversion is also termed as modulating an analog signal.
7 / 50
Data synchronization is a function related with ______
8 / 50
_________ requires more bandwidth.
9 / 50
3dB is also called as power bandwidth.
10 / 50
We need ____________ to decompose a composite signal into its components.
11 / 50
Which one best describes the given statement: "To allow multiple users to share total capacity of a transmission medium"
12 / 50
is a multipoint topology.
13 / 50
TCP/IP model Application layer incorporate OSI Application and presentation
14 / 50
A set of devices connected by communication links is called networking
15 / 50
The bit rate always equals the baud rate in which type of signal?
16 / 50
The _______________ layer changes bits into electromagnetic signals.
17 / 50
OSI model was developed prior to TCP/IP model.
18 / 50
Layers 5, 6 and 7 also called as network support layers.
19 / 50
Which topology requires a central controller or hub?
20 / 50
_____________ converts an analog signal into a digital signal.
21 / 50
Which is not an element of protocol
22 / 50
23 / 50
Effective network mean that the network has fast delivery, timeliness and
24 / 50
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
25 / 50
Which one is not among standard creation committee.
26 / 50
27 / 50
In transmission, a start bit and a stop bit frame a character byte.
28 / 50
In mesh topology, if there are five nodes then there will be links.
29 / 50
Frequency band in which 99% of the total power resides is called_______
30 / 50
The internet model consists of _________ layers.
31 / 50
PCM is the first process of PAM.
32 / 50
Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
33 / 50
34 / 50
Set of rules that govern communication is called
35 / 50
The inversion of the level at 1 bit is called as __________
36 / 50
Asynchronous transmission is ___________
37 / 50
ASK, PSK, FSK and QAM are examples of ____ modulation.
38 / 50
DC component is also termed as Direct current component or a component with non-zero frequency.
39 / 50
The __________ generates the data and passes it along with any control information to a ___________.
40 / 50
In Alternate mark inversion the term mark comes from_________
41 / 50
The last modified version of EIA-232 standard is ______________
42 / 50
ASK, PSK, FSK and QAM are examples of modulation.
43 / 50
Data chunk at data link layer is called
44 / 50
Time domain plot show changes in signal phase with respect to time.
45 / 50
46 / 50
Number of signal units per second that are required to represent a bit is called bit rate.
47 / 50
Line configuration refers to the way two or more devices attach to a ______.
48 / 50
A human brain is considered as a ___________
49 / 50
F.M.In differential Manchester we require two transition or signal changes to represent binary_____
50 / 50
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