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Common transmission flaws affecting data signals?
noise
What is signals in data communication?
In data communication, signals refer to the variations in physical quantities that carry information over a medium. These signals can be analog or digital, with analog signals representing data as continuous waves and digital signals encoding data in discrete binary values. The transmission of these signals enables the exchange of information between devices over various channels, such as wired or wireless networks. Effective signal transmission is crucial for ensuring data integrity and communication reliability.
Why do the variations in data transmission signals need to be synchronized?
variations in data transmission needs to be synchronized to show consistency and completeness of the total system requirement
What is transmission medium?
A transmission medium is the physical pathway through which data signals are transmitted from a sender to a receiver in a communication system. It can be wired, such as coaxial cables, fiber optics, or twisted pairs, or wireless, such as radio waves, microwaves, or infrared signals. The choice of transmission medium affects the speed, bandwidth, and distance over which data can be effectively communicated. Each medium has its own advantages and disadvantages based on factors like cost, performance, and environmental conditions.
One of the most common transmission flaws affecting data signals is?
Noise
What is data transmission channel?
Transmission channels are defined as paths through which electrical signals can pass through. It may be in form of a physical cable.
What are the key Tasks must be performed in data communication system?
In a data communication system, key tasks include signal generation, where data is converted into signals for transmission; transmission, which involves sending these signals over a communication medium; and reception, where the signals are captured and converted back into usable data. Additionally, error detection and correction mechanisms are essential to ensure data integrity during transmission. Finally, proper protocol management is crucial for ensuring that different devices communicate effectively and understand each other.
What effect does the Copyright Act have on ICT?
Copyright affects the use of software, the transmission of data, and more.
What hardware is used to convert the digital signals of a computer to signals that can be transmitted?
The hardware used to convert the digital signals of a computer to signals that can be transmitted is called a modem (modulator-demodulator). It converts digital data from the computer into analog signals for transmission over telephone lines or cable systems. Additionally, network interface cards (NICs) and routers can also play a role in this process by facilitating data transmission over local networks and the internet.
How to describe physical layer protocol functions when receiving data?
Detect and accept signals -Pass on to Data Link layer -Set data transmission rate -Monitor data error rates
Which type of hubs repairs weak signals by actually retransmitting the data with proper transmission voltage and current?
passive
What is the transmission from a satellite to an earth-based station?
The transmission from a satellite to an earth-based station is typically done using radio frequency signals. The satellite sends data to the ground station through a process called downlinking. The ground station receives the signals, processes the data, and distributes it to its intended destination.
