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enot [183]
3 years ago
7

The conventional wisdom concerning the security frameworks of domains is that it is always preferable for an organization to cre

ate a framework based on its own needs. Frameworks like ISO and COBIT are resources and should not be used as models to build on
Computers and Technology
1 answer:
Valentin [98]3 years ago
6 0

Answer:

False

Explanation:

A Domain Based Security. "Domain Based Security", abbreviated to "DBSy", is a model-based approach that is being used in analyzing information security risks in a business context and offers an apparent, understandable and direct mapping among the risks and the security controls needed to handle them.

While A security domain is the list of items a subject is permitted to access. More largely defined, domains are collections of subjects and objects with related security requirements.

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1.Electromagnetic waves can carry more data at higher frequencies. Why would a scientist opt to transmit data at a lower frequen
skad [1K]
1)The reason as to why scientists opt to transmit data at lower frequency  instead of electromagnetic even if it can carry more data at a higher frequencies is because using higher frequencies of electromagnetic spectrum travel shorter distances but have higher data carrying capacity.So this physical characteristic of electromagnetic waves limits the range and availability of frequencies for sending information.
2) Limitations of using electromagnetic waves in sending communication
communication is a process of transmitting and receiving information in the form of signals.high technology communication use electromagnetic waves,there are various types of electromagnetic waves which are used in communication which include radio-waves,microwaves,infrared  e.t.c some of their limitations are
i)Because there is limited number of broadcast frequencies the use of transmitters must be restricted  in some way or they will seriously interfere with each other.
ii)Through the air signals can be distorted by atmospheric conditions and signals from space are sometimes distorted by solar activity
iii)physical activities such as mountains and buildings can prevent or interfere with some transmissions
iv)Through the air signals are not private,so any tuned receiver within the range can pick up them.
3)Differences between digital and analogue signals
Analogue and digital signal are used to transmit information usually through electric signals.
An analogue signal is continuous wave denoted by sine wave and may varry in signal strength (amplitude) or frequency(time) an example is sound from human voice is analogue because waves are continuous..
A digital signal is a signal in which the original information is converted into a string of bits before being transmitted .example a must for computer processing where is described as using (0s and 1s)and therefore can not take any fractional value.
4)Advantages of using digital signals over analogue signals
one advantage of digital signals are inherently less susceptible than analog signals to interference caused by noise because with digital signal it is not necessary to evaluate precise amplitude,frequency or phase.
Another advantage based in capacity is that digital signals carry more information per second than analogue signals.
Digital signals maintain their quality over long distances better than analogue signals.
5)How we use digital and analogue signals in our everyday live
digital signal processing is the way of life of current generation 
example is mobile phones do alot of digital signal processing .they process our our speech digitally to remove background noise,echo  e.t.c
Television also do a lot of digital processing of video,audio signal to present them in a better way.
How radio telescopes are used to explore space
A radio telescope is a specialized antenna and radio receiver used to receive radio waves from astronomical radio sources in the sky in radio astronomy.It has several main parts, a dish and antenna,a receiver,a detector and an analyzer.The dish collects the radio signals from space ad focuses them on the antenna.
6)How radio waves are used on earth
Radio waves are used to transmit television and radio programs They have longer wave lengths and are reflected by the ionosphere
7) Reasons why telescopes convert radio waves (analog) to electrical(digital) signals for analysis
This is because signals can be easily stored and transmitted in digital form.The analog is continuous in time and it is necessary to convert this to a flow of digital values.
7 0
3 years ago
What do mobile platforms utilize to stream voice, IP telephony, mobile internet access, video calling, gaming services, cloud co
Anuta_ua [19.1K]

Answer:

4G/5G.

Explanation:

The broadband cellular network technology that mobile platforms utilize to stream voice, IP telephony, mobile internet access, video calling, gaming services, cloud computing, high-definition mobile TV, and mobile 3-D TV is 4G/5G.

4G technology refers to the fourth generation broadband cellular network technology that is typically used for cellular communications on mobile phones and it is considered to have an internet speed that is ten times faster than what is obtainable on the third generation (3G) broadband technology.

Similarly, 5G is the fifth generation broadband cellular network technology that succeeded 4G and it offers higher quality in terms of performance, reliability, availability and efficiency.

As a result of the speed and high quality specifications of the 4G/5G broadband cellular network technology, they are widely used for various communications systems.

5 0
2 years ago
The Brinley website will not let me search for questions anymore. It says “Search all you want in-app” and then covers the quest
ira [324]

Answer: U can answer a few questions of other people’s questions then the question that was covered it unlocks after answering some questions and u will be able to see it or u could get the app too and it doesn’t block at all

Explanation:

4 0
3 years ago
If your vehicle leaves the pavement for any reason, remember to take your foot off the gas pedal, hold the wheel firmly, and____
aleksandr82 [10.1K]
A- and steer in a straight line 
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3 years ago
Read 2 more answers
Microsoft excel is a __________ application.
Nastasia [14]
B. spreadsheet is the answer
3 0
3 years ago
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