CS601-Midterm
1 / 50
Effective network mean that the network has fast delivery, timeliness and
2 / 50
Analog to digital conversion is also termed as modulating an analog signal.
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Quantization means measuring amplitudes of signal at equal intervals.
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Set of rules that govern communication is called
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representation of links that connect nodes is called as physical topology.
6 / 50
A modulator converts a(n) ____________ signal to a(n) ____________ signal.
7 / 50
Which one is not among standard creation committee.
8 / 50
layer is the layer closest to the transmission medium.
9 / 50
In mesh topology, if there are five nodes then there will be links.
10 / 50
ASK, PSK, FSK and QAM are examples of modulation.
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_____________ converts an analog signal into a digital signal.
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13 / 50
The bit rate always equals the baud rate in which type of signal?
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15 / 50
Non proprietary standard is also termed as de facto standard.
16 / 50
The last modified version of EIA-232 standard is ______________
17 / 50
In transmission, a start bit and a stop bit frame a character byte.
18 / 50
DC component is also termed as Direct current component or a component with non-zero frequency.
19 / 50
Which topology requires a central controller or hub?
20 / 50
The __________ generates the data and passes it along with any control information to a ___________.
21 / 50
A sine wave must be an analog signal.
22 / 50
A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
23 / 50
The _______________ layer changes bits into electromagnetic signals.
24 / 50
A set of devices connected by communication links is called networking
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3dB is also called as power bandwidth.
26 / 50
In 8QAM each signal shift or one baud represents __________
27 / 50
28 / 50
Time domain plot show changes in signal phase with respect to time.
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Data chunk at data link layer is called
30 / 50
Asynchronous transmission is ___________
31 / 50
Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
32 / 50
Line configuration refers to the way two or more devices attach to a .
33 / 50
Packet switching is a connection oriented service.
34 / 50
OSI model was developed prior to TCP/IP model.
35 / 50
Asynchronous transmission is
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TCP/IP model Application layer incorporate OSI Application and presentation
37 / 50
Layers 5, 6 and 7 also called as network support layers.
38 / 50
A human brain is considered as a ___________
39 / 50
Number of signal units per second that are required to represent a bit is called bit rate.
40 / 50
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
41 / 50
Frequency of a failure and network recovery time after a failure is measures of the ____________ of a network.
42 / 50
F.M.In differential Manchester we require two transition or signal changes to represent binary_____
43 / 50
In Alternate mark inversion the term mark comes from_________
44 / 50
Unidirectional traffic movement is overcome by dual ring technology.
45 / 50
The internet model consists of layers.
46 / 50
There are _____ possible variations of 16 QAM.
47 / 50
PCM is the first process of PAM.
48 / 50
is a multipoint topology.
49 / 50
Frequency band in which 99% of the total power resides is called_______
50 / 50
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