Data Communication Module 3 Post Q

In this transmission mode, data can only flow in one direction, which is usually from the source to the sink

• Half Simplex

• Simplex

• Half Duplex

• Full Duplex

In this transmission, bits are sent one after another in a queue manner. It requires only one communication channel

• serial transmission

• parallel transmission

• asynchronous

• synchronous

This transmission is used when data is transmitted as individual characters It is named so because there is no importance of timing.

• simplex transmission

• synchronous transmission

• Asynchronous transmission

• Parallel transmission

In this data transmission, all bits of the binary data are transmitted simultaneously. All bits of a word are transmitted at the same time. This method of transmission can move a significant amount of data in a given period of time.

• series transmission

• parallel transmission

• asynchronous transmission

• synchronous trtansmission

This cable has two wires of copper. The core wire lies in the center and it is made of solid conductor. The core is enclosed in an insulating sheath. The second wire is wrapped around over the sheath and that too in turn encased by insulator sheath. This all is covered by plastic cover.

• Fiber Optics

• Coaxial Cable

• twisted pair cable

• radio waves

It lies in between visible light spectrum and microwaves. It has wavelength of 700nm to 1mm and frequency ranges from 300GHz to 430THz

• Infrared wave

• Radio Frequency

• Coaxial Cable

• Electromagnetic waves

It is a directional antenna that is made of a series of dipoles placed along its axis at different space intervals of time followed by a logarithmic function of frequency

• Microwave Antenna

• Wire Antenna

• Log Periodic Antenna

• Traveling wave antenna

It is the range of frequencies contained by a signal.

• Television Spectrum

• Frequency Spectrum

• Ground Wave Propagation

• Frequency Index

These are the electromagnetic waves that travel along the surface of earth and are also called as surface waves

• Sky Wave

• Space Waves

• Ground Waves

• Sky Way

This is used for a line of Sight communication (LoS). Space satellite communication and very high frequency waves use this propagation method.

• Space Wave

• Sky Wave

• Ground Wave

• Sattelite Wave