Take This Trivia Quiz On Telecommunication

Conduit is the correct answer because it provides protection and support for buried cables. It is a pipe or tube made of metal or plastic that encloses the cables, shielding them from damage caused by external factors such as moisture, rodents, or accidental digging. Conduit also allows for easy maintenance and future cable installations. By placing cables in conduit, they are better organized and less prone to wear and tear, ensuring their longevity and efficient functioning.

Any wire or sockets that are fitted before the NTE belong to the service provider. Any sockets or wire feeding from the extention face plate of the NTE belong to the customer.

A high frequency will have more cycles per second than a lower one. This means that it works harder to travel the same distance that a low frequency would and as a result will use up more power.

The correct answer is silicon sealant and a grommet. When an installer drills external holes to gain cable access into a property, it is important to seal these holes properly to prevent water, pests, or other unwanted elements from entering. Silicon sealant is a waterproof material that can be applied around the edges of the hole to create a tight seal. A grommet, on the other hand, is a rubber or plastic ring that can be inserted into the hole to provide additional protection and prevent any sharp edges from damaging the cables. Using both silicon sealant and a grommet ensures a secure and watertight seal for the cable access points.

The expected characteristic impedance of the CATV network is 75 Ohms. This is the standard impedance used in CATV systems to ensure efficient signal transmission and minimize signal reflections. It is a common impedance value for coaxial cables and is compatible with most CATV equipment and devices.

It is never acceptable to leave any cable loose or unsecured. Cables MUST be secured using company securing methods and by following company process. You put others at risk as well as yourself and are also leaving yourself and the company open for litigation.

The next thing you should do is check the jumper wire using a Butt phone with the correct type test lead. This will allow you to verify the integrity and functionality of the jumper wire. Pulling the wire as hard as you can or giving it a tug may cause damage or disruption to the connection. Checking the paperwork is not sufficient as it does not guarantee the proper installation and functioning of the jumper wire. Removing the jumper with care is a possible next step, but it is important to first check its status using the appropriate equipment.

Leaving an air gap in a connection, such as that created by a short stinger, will create a higher resistance. This is because air is a poor conductor of electricity compared to a solid conductor. When there is an air gap in the connection, the flow of electricity is hindered, leading to an increase in resistance. As a result, the resistance in the circuit will be higher than if the connection was solid and uninterrupted.

The correct answer is "A staple gun's length." When stapling cable, it is recommended to place the staples at a distance equal to the length of a staple gun. This ensures that the cable is securely fastened and prevents any potential damage or strain on the cable.

All unterminated/open ports must be terminated using a 75 Ohm termination cap. This is because a termination cap matches the impedance of the transmission line, preventing signal reflections and ensuring proper signal transmission. In this case, a 75 Ohm termination cap is required to match the impedance of the transmission line and effectively terminate the open ports.

Where possible always do a speed test with the equipment connected to the modem via an ethernet connection.

As high frequencies tend to travel toward the out side of the conductor (in this case the copper coating) -this is known as the skin effect - any damage to this will have an affect on the high end. The deeper the cut/scoring damage is the more problems it causes and the more of the frequency range is impacted.

Unwanted electrical noise in the network refers to any interference or disturbance in the electrical signals being transmitted. This noise can disrupt the clarity and strength of the signal, leading to a decrease in the Signal-to-Noise Ratio (SNR). SNR is a measure of the strength of the desired signal compared to the background noise. Therefore, it is logical to conclude that unwanted electrical noise in the network will indeed cause the SNR to decrease.

Forward path error correction can only deal with 1 error in every 10,000 bits of data it recieves. Data loss could be due to noise, bad connections, low/high levels, damaged cable, faulty passives etc. It could also be transmission issues & Network problems

Using any type of passive splitter will not reduce the upstream power level. Passive splitters simply divide the signal into multiple outputs without affecting the power level. The power level remains the same regardless of the number of outputs. Therefore, the statement is false.

Unwanted electrical waves that enter the CATV network are referred to as "ingress." Ingress is a common issue in cable television systems where external signals, such as radio frequency interference, leak into the network and disrupt the desired signals. This interference can cause picture distortion, poor sound quality, and overall degradation of the cable TV service. To mitigate ingress, cable operators employ various techniques like proper shielding, signal amplification, and regular maintenance of the network infrastructure.

Technicians are expected to pre-call each customer to confirm the appointment and gather any necessary information. They should wear overshoes in the property to maintain cleanliness and protect the customer's floors. Showing their ID is important to establish trust and ensure the customer's safety. Walking the customer through the work they have done helps them understand the process and feel more involved. Discussing the route before starting any work ensures that the technician and customer are on the same page. Giving an estimate of install duration helps manage the customer's expectations. Completing a checksheet at the end of a job ensures that all necessary tasks have been completed. Explaining about the NPS survey helps gather feedback and improve customer experience. Finally, ensuring all services are working and to spec ensures customer satisfaction.

The correct answer is 2. This means that the maximum number of wires permitted to be inserted into a single IDC (Insulation-Displacement Connector) is 2. This limit is in place to ensure proper electrical connections and prevent overcrowding or damage to the connector. Exceeding this limit may lead to poor connectivity or even short circuits.

Changing the characteristic impedance between the DP and customer equipment will cause greater resistance leading to problems. Impedance mismatch can result in signal reflections, which can cause signal degradation, loss of power, and other issues. Increased resistance can lead to reduced signal quality, increased noise, and potential communication problems between the DP and customer equipment.

The correct answer is Admin/Changeme. This is because the question states that after completing a BBI install, the user needs to enter a username and password to access the modem's user interface. The default username and password for this purpose are set as Admin/Changeme.

When using the SA9083 meter, the first test performed on the local line is for stray voltage ac. This means that the meter is checking for any unwanted or unexpected voltage that may be present on the line. Stray voltage can be caused by various factors such as faulty wiring or electrical interference, and it is important to detect and address it to ensure the safety and proper functioning of the electrical system.

The drop tag is a form used to document important information about a service call or delivery. It is necessary to include the address, tech number, and date on the drop tag to ensure proper identification and tracking of the service or delivery. The address is crucial for the technician or delivery person to know where to go, while the tech number helps in identifying the specific technician assigned to the task. The date is essential for recording the date of the service or delivery. Including these details on the drop tag ensures accurate and efficient handling of the task.

The expected ringing voltage of a VM phone line is 75vac.

Ingress noise refers to unwanted signals that enter the CATV network from external sources. When there is ingress noise, several negative effects can occur. Decreasing of the SNR (Signal-to-Noise Ratio) happens because the noise level increases while the signal power remains the same, resulting in a weaker signal relative to the noise. Rise in the noise floor refers to an overall increase in the background noise level, which can degrade the quality of the signal. Reduction in signal power occurs because the noise interferes with the signal transmission. Increase in upstream power level is needed to compensate for the added noise. Loss of data, blocking and freezing, slow internet speeds, eventual loss of interactive features, and eventual total loss of CATV services can all occur due to the negative impact of the ingress noise on the network.