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Q. Explain about Transmission Media?
These, also known as physical channels, can be either bounded or unbounded. Bounded media, in which signals representing data are confined to the physical media, are twisted pairs of wires, coaxial cables, and optical-fiber cables, used in most LANs. Unbounded media, such as the atmosphere, the ocean, and outer space inwhich the transmission iswireless, use infrared radiation, lasers, microwave radiation, radio waves, and satellites. Data are transmitted from one node to another through various transmission media in computer communications networks.
Twisted pairs are used in low-performance and low-cost applications with a data rate of about 1 Mbit per second (Mbps) for a transmission distance of about 1 km. Baseband coaxial cables used for digital transmission are usually 50- cables with a data rate of about 10 Mbps over a distance of about 2 km. Broad-band coaxial cables used for analog transmission (cable TV) are usually 75- cables with a data rate of about 500 Mbps over a distance of about 10 km. The lighter and cheaper fiber-optic cables support data transmission of about 1 Gbps over a distance of about 100 km.
Grounding a variable - first-order logic: The perform of making ourselves clear about a variable by introducing an exists or a forall sign is called quantifying the variable.
Signify this problem by means of: i. An Entity Relationship model; ii. Relational tables. Pete's Programmers is a firm which supplies part time staff on contract to organisat
Illustrate the categories of micro computers Micro computers are usually categorized into desktop models and laptop models. They are awfully limited in what they can do when c
Q. Fundamental types of flash memory? Code Storage Flash which is made by Intel, AMD, Atmel. It stores programming algorithms and it is largely found in cell phones. Data
HOW WAS JAVA INVENTED?
CGI stands for Common Gateway Interface, and is a mechanism by which a browser is permitted to communicate with programs running on a server. If you look at every word in turn it m
Reset and Submit are special types of input buttons. Submit is used to send data to the server and Reset resets/clears the form.
Conversion of the decimal number 82.67 into Hexadecimal ? Ans. (1010010.10101011) 2 is the binary equivalent of decimal number 82.67. Now convert each 4-bit binary into an equ
Q. Prove using Boolean Algebra 1. AB + AC + BC' = AC + BC' 2. (A+B+C) (A+B'+C') (A+B+C') (A+B'+C)=A 3. (A+B) (A'+B'+C) + AB = A+B 4. A'C + A'B + AB'C + BC = C + A'B
What is Fish Bone Diagram? Or Explain Ishikawa Diagram. Fish Bone Diagram is also known as Ishikawa Diagram or Cause and Effect Diagram. It is known as Fish Bone Diagram be
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