Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Test Reviewer > Data > Flashcards

Data Flashcards

1
Q

It is the communication over a link between a single transmitter and a receiver.

A

Point to point Communication mode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Primarily used in point-to-point networks, concentrate the waves in one direction much like a flashlight concentrates light in a narrow beam.

A

Directional Antennas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The transfer of data or information using digital signals over a point-to-point (P2P) channel.

A

Digital Communication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The channel is shared among multiple devices or nodes.

A

Multipoint Communication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Delivers a message to all nodes in the network using a one-to-all association; a single datagram (or packet) from one sender is routed to all of the possibly multiple endpoints associated

A

Broadcast Signal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A more reliable and less susceptible to noise and interference than analog communication, which makes it a preferred choice for many applications.

A

Digital Communication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A typically produce a lower-quality picture than the original. The picture isn’t quite as sharp, the background is sometimes grainy, and the sound suffers from noise and a reduced frequency response.

A

Analog Transmissions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The transfer of data or information using digital signals over a point-to-point (P2P) channel. A P2P connection is a mode of communication between two communication endpoints.

A

Data Transmission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

It meant that friends and family couldn’t gather like they used to, so they had to rely on texts, social media, and video calls to stay connected.

A

Social distancing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Time consuming processes like employee records management, employee recruitment, employee onboarding, benefits, and tax forms can all be automated. This frees up government staff to devote their time to more important tasks.

A

HR Automation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The data can be transmitted using either analog or digital signals. In Digital Communication, only digital signals are used.

A

Data Communication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

It consumes high power due to the requirement of greater number of components, higher bandwidth, and high transmission speed.

A

High power consumption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

It refers to the exchange of digital information between the sender and receiver using different devices and methods

A

Digital communication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Attenuations limit length of transmission link and data be can tolerated distortion

A

Analog Transmission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

It represented in the form of discrete values is known as digital signal. It is transmitted in the form of bits. Only two bits (0 and 1) work in different combinations

A

Signal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

It refers to data transmission from one place to another. It is the communication between the sender and receiver. A sender is also known as transmitter that transmits the data

A

Digital communication system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

In a communication system, it converts the non-electrical energy to electrical energy to make it suitable for transmission within the system.

A

Transducer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The system can cause information loss and distortion

A

Noise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The signal is demodulated and the source signal is recovered from the carrier signal.

A

Digital Demodulator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The medium between the transmitter and the receiver. It helps in transmitting a digital signal from the transmitter to the receiver

A

Communication channel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

A digital signal that repeats over a period of time is known as _______, such as square wave

A

Periodic signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

It refers to the data transmission in continuous form, while digital refers to the data transmission in the discrete form

A

Analog

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Known as the logic signal because both represent two bands, HIGH and LOW. 0 and 1 are also represented as the numbers in Boolean domain.

A

Binary signal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

It refers to the exchange of digital information between the sender and receiver using different devices and methods.

A

Digital communication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Signal processing by digital means
Digital Signal Processing
21
Binary representation of the analog signal
Analog-to-Digital Converter (ADC)
21
Specialized microprocessor that can process signals in real-time
Digital Signal Processor:
22
_ Characteristics: _ are Physical Quantities, Measurable, Analog, Contain information.
Signal signal
23
are devices that convert other physical quantities (temperature, pressure, etc.) to electrical signals.
Sensors
24
Digital representation of the signal is converted to continuous analog signal.
Digital-to-Analog Converter (DAC)
25
_ has many applications, including audio and video processing, image processing, communication systems, radar and sonar systems, and control systems. In its simplest form, _ involves taking a signal (such as an audio signal) and processing it with a digital system to provide a desired result.
DSP
26
_ converts signals from real world sources (usually in analog form) into digital data that can then be analyzed.
Digital Signal Processing
27
_ is performed in digital form because once a signal has been reduced to numbers, its components can be isolated and manipulated in more detail than in analog form.
Analysis
28
_ is continuous and time varying. Troubleshooting of _ are difficult. Easily affected by the noise. _ use continuous values to represent the data
Analog Signals
29
_ have two or more states and in binary form. Troubleshooting of __ are easy. These are stable and less prone to noise. _ use discrete values to represent the data.
Digital Signals
30
An _ is usually in the form of _.
digital signal square wave.
30
An _ is usually in the form of _.
analog signal sine wave
31
Digital Signal Processing Examples _ to remove noise to obtain a clean signal.
Digital filtering
32
Plot and display frequency information of the digitalized signal.
Signal Spectral Analysis
33
_ refers to the discrete time-varying signal.
Digital
34
_ refers to the exchange of information between two or more sources.
Communication
35
_ refers to the exchange of digital information between the sender and receiver using different devices and methods.
Digital communication
36
The _ using analog methods for long-distance communication suffers from distortion, delays, interferences, and other losses.
data transmission
37
is a popular technology used today in electronics. It allows us to access video conferencing, digital meetings, online education, etc.
Digital communication
38
refers to the exchange of information using a specific medium, such as vacuum, space, wireless medium, wired medium, etc.
Communication
39
In digital terms, _ refers to the exchange of digital information from the transmitter to the receiver.
communication
39
_ is a two-way process of sharing information.
Communication
40
The components of a communication system
Are the transmitter, communication channel, and receiver.
41
The _ transmits the data to the communication channel, which further sends it to the receiver.
transmitter
42
_ refers to the data transmission in continuous form, while _ refers to the data transmission in the discrete form. It is also known as the transmission in the form of _, 0 (LOW) and 1 (HIGH).
Analog digital bits
42
A _ is an electromagnetic wave that carries information from one place to another, using a specific propagation medium, such as air, vacuum, water, and solid.
signal
42
We can represent various physical quantities using _, such as voltage and current
digital signals
43
In electronics, the _ is defined as a current, voltage, or wave carrying information. It can travel short distances or long distances depending on the requirements. The speed of a signal wave is equal to the speed of light.
signal
44
A signal represented in the form of discrete values is known as _. It is transmitted in the form of _.
digital signal bits
45
A _ can take only one value at a time from the set of finite possible values.
digital signal
46
The _ is also known as the logic signal because both represent two bands, HIGH and LOW. 0 and 1 are also represented as the numbers in _. HIGH = 1 = TRUE LOW = 0 = FALSE
binary signal logic Boolean domain
47
A _ represents a continuous waveform switching between the discrete values called _ in a communication system.
digital system bitstreams
47
Types of Digital Signal
periodic signal aperiodic signal
48
A signal that repeats over a period of time
periodic signal
49
A signal that does not repeat over a period of time
aperiodic signal
50
A digital signal that repeats over a period of time is known as _, such as _.
periodic signals square wave
51
A digital signal that does not repeat over a period of time is known as an _. It is also a discrete signal, but not of repeated pattern.
aperiodic signal
52
In _, _ invented first electrical telegraph, an electrical device used for communication.
1938 W. Cooke and Whetstone
53
In the _, _ invented the telephone used for exchanging audio signals or sound from one place to another.
1870s Graham Bell
54
A _ refers to data transmission from one place to another. It is the communication between the sender and receiver.
digital communication system
54
Similarly, the _ were invented during the early _.
radio and televisions 1900s
55
A _ is also known as transmitter that transmits the data.
sender
56
The _ refers to the input signal applied to the digital communication system. It is also known as the _.
source signal input signal
57
___ The _ is a device used to convert one form of energy to another. In a communication system, it converts the non-electrical energy to electrical energy to make it suitable for transmission within the system.
Input Transducer transducer
58
The _ compresses the data to the reduced number of bits from the original bits. It helps in effective bandwidth utilization and also removes unnecessary bits. It means that the compressed data is in the form of binary digits. We can also say that the _ converts the waveforms to binary data.
source encoder
59
___ The information in the signal may get altered due to the noise during the transmissions. The _ works as an error correction method. It adds redundant bits to the binary data that helps in correcting the error bits. It enhances the transmission quality of the signal and the channel.
Channel Encoder channel encoder
60
A carrier signal modulates the received signal. It modulates the digital by varying the transmitted signal's frequency, amplitude, and phase.
Digital Modulator
61
The _ is the medium between the transmitter and the receiver. It helps in transmitting a digital signal from the transmitter to the receiver.
communication channel
62
The signal is demodulated and the source signal is recovered from the carrier signal.
Digital Demodulator
63
___ The function of the _ is to add the redundant bits to the binary data, as discussed above. The _ works in the same but opposite way. It removes the parity bits from the binary data. It does not affect the signal quality and the information and transmits the data securely. The output of the _ is a pure digital signal with no interference or noise.
Channel decoder channel decoder channel decoder channel decoder
64
The_ works oppositely as that of the source encoder. It converts the binary data back to the waveforms.
source decoder
65
The _ works in the opposite was as that of the input transducer. It converts the electrical energy back into its original form. It makes the information suitable for the user at the output to capture.
output transducer
66
_ in the system can cause information loss and distortion.
Noise
67
The _ refers to the output from the digital communication system. It is the signal that appears at the output after passing through various communication system components.
output signal
68
The _ are used at both the transmitting and receiving ends to filter out the noise components from the signal.
noise removal components
69
The _ include anti-aliasing filters, shielded cables, and grounding concepts.
noise components
70
_ acts as a reference voltage for the circuit and helps in preventing coupling.
Grounding
70
It consumes high power due to the requirement of greater number of components, higher bandwidth, and high transmission speed.
High power consumption
71
_ the communications process means breaking down the communication process into smaller and easier to handle interdependent categories, with each solving an important and somehow distinct aspect of the data exchange process
Layering
71
In a _, _ is sent as a sequence of digits that are first converted to an analog form by modulation at the transmitter and then converted back into digits by de-modulation at the receiver.
digital communication system information
72
Digital communication requires _ to transmit the signals at high speed.
High transmission bandwidth
73
The power loss in digital communication is higher than analog communication due to the high processing speed and hardware components.
High power loss
74
_ means services involving the transportation of digital data via externally owned infrastructure, including voice data, raw data, video data, control and monitoring data.
Digital Communication Services
75
The _ were the first technologies used to store the digital record with a large size occupying the space of a room.
digital computers
76
It uses digital signals with discrete values for transmitting data represented in the form of two binary digits 0 and 1. represents one bit at a time
Digital communication
76
It uses analog signals for transmitting data. Represents continuous values at a time.
Analog communication
77
_ is the communication between the transmitter and receiver using various devices and methods, such as encoder, decoder, data compression, etc.
Digital communication
78
_ is the communication between a sender and receiver using the communication medium.
Data communication
79
The _ with inbuilt radio transmitter was invented in _
first satellite 1957

Test Reviewer (34 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions