Hardware And Networking Interview Questions With Answers' title='Hardware And Networking Interview Questions With Answers' />Networking Interview Questions and Answers. Attenuation When a signal travels through a medium, it loses some of its energy due to resistance of the medium. This loss of energy is called Attenuation. This is the reason why a wire carrying electric signals gets warm. Some of the electrical energy in the signal is converted to heat. Learn basic Networking concepts with hundreds of Interview Questions and Answers and examples. Technical interview questions and answers for freshers and experienced, Technical interview questions pdf, Technical online test all answers are posted by experts. A4academics has complied the top 150 Java Interview Questions and answers to help you succeed in a job interview. View Frequently asked questions here. In this article you will learn about some top interview questions and answers of Cloud Computing and Microsoft Azure. The general responsibility of the help desk personnel is to provide customer support services on the company platforms. He or she should troubleshoot technical. Download basic networking interview questions and answers pdf for freshers and experienced which explain all networking concepts and commands ppt multiple. CoolInterview. com Indias Largest Interview Questions Answers Website. CoolInterview. com is worlds Largest Collection of Free Interview Questions. Well organized thousands of job interview questions answers for interviewer and interviewee. Adobe Dmg Converter Windows: Full Version Software more. Practice is the best way to mpreapare for an interview. Her we provide you with 50 most common interview question and most appropriate answers to these questions. To overcome for this problem, amplifiers are used to amplify the signal. Unit of the decibel is used to find out if a signal has lost or gained strength. The decibel d. B measures the relative strengths of two signals or one signal at two different points. If decibel is negative then a signal is attenuated and if positive signal is amplified. Formula Where PI and P2 are the variable and the powers of a signal at points 1 and 2, respectively. Distortion. When the signal travels through the medium from one point to another it may chance to change the form or shape of signal. It is called distortion. Distortion can occur in a composite signal, made up of different frequencies. Each signal component has its own propagation speed through a travelling medium and, therefore, its own delay in reaching at the final destination. Means signal components at the receiver have phases different from what they had at the sender. Noise. The third cause of impairment is Noise. Following types of noise are possible. Thermal noise. Induced noise. Crosstalk noise. Impulse noise. Employees Compensation Act 2010 Nigeria Pdf. These noise may corrupt the signal. Thermal noise is produced due to the random motion of electrons in a wire which creates an extra signal not originally sent by the transmitter. Induced noise comes from sources such as motors and other electronic appliances. Paper Patch Myringotomy. These devices act as a sending antenna, and the transmission medium acts as the receiving antenna. Crosstalk is the effect of one wire on the other. Impulse noise comes from power lines, lightning etc.