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Questions and Answers
What is the primary function of a Balun in a transmission system?
What is the primary function of a Balun in a transmission system?
- To filter out noise in a signal
- To connect two parallel transmission lines
- To convert a single-ended signal to a differential signal (correct)
- To amplify the signal in a transmission line
Which type of transmission line consists of two parallel wires closely spaced and separated by air?
Which type of transmission line consists of two parallel wires closely spaced and separated by air?
- Open-wire transmission line
- Coaxial transmission line
- Parallel-wire transmission line (correct)
- Dual shielded transmission line
What is the term for the unwanted signal interference between two adjacent cables?
What is the term for the unwanted signal interference between two adjacent cables?
- Longitudinal current
- Crosstalk (correct)
- Common mode rejection
- Attenuation
What is the unit of measurement for the loss of signal strength in a cable per 100 meters?
What is the unit of measurement for the loss of signal strength in a cable per 100 meters?
What type of material is used to coat Plenum-grade cables to make them fire-resistant?
What type of material is used to coat Plenum-grade cables to make them fire-resistant?
What is the term for the area between the ceiling and the roof in a single building or between the ceiling and the floor of the next higher level in a multistory building?
What is the term for the area between the ceiling and the roof in a single building or between the ceiling and the floor of the next higher level in a multistory building?
What type of coaxial cable is easier to construct, install, and maintain?
What type of coaxial cable is easier to construct, install, and maintain?
What is the characteristic impedance of a transmission line used to express?
What is the characteristic impedance of a transmission line used to express?
What is the phenomenon where current flows through an isolated round wire, causing a magnetic flux?
What is the phenomenon where current flows through an isolated round wire, causing a magnetic flux?
Why is the air insulator in CCNA cables kept relatively free of moisture?
Why is the air insulator in CCNA cables kept relatively free of moisture?
What is the purpose of delay lines in transmission lines?
What is the purpose of delay lines in transmission lines?
What is the type of connector that can be easily twisted on or off?
What is the type of connector that can be easily twisted on or off?
What is the purpose of a transmission-line stub?
What is the purpose of a transmission-line stub?
What is the characteristic of a Stripline?
What is the characteristic of a Stripline?
What is the term for the ratio of the maximum voltage to the minimum voltage of a standing wave on a transmission line?
What is the term for the ratio of the maximum voltage to the minimum voltage of a standing wave on a transmission line?
What is the purpose of a quarter-wavelength transformer?
What is the purpose of a quarter-wavelength transformer?
What is the term for the luminous discharge that occurs between the two conductors of a transmission line when the difference of potential between them exceeds the breakdown voltage of the dielectric insulator?
What is the term for the luminous discharge that occurs between the two conductors of a transmission line when the difference of potential between them exceeds the breakdown voltage of the dielectric insulator?
What is the term for a technique that can be used to locate an impairment in a metallic cable?
What is the term for a technique that can be used to locate an impairment in a metallic cable?
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