Which of the following describes the function of an injector?
Answer(s): B
An injector, often called a PoE (Power over Ethernet) injector, delivers electrical power along with data through an Ethernet cable. This allows network devices such as IP cameras, access points, or VoIP phones to operate without a separate power adapter.
A technician needs to provide equipment for an international contractor. Which of the following cables would most likely change depending on the equipment's destination?
Answer(s): A
Power cables and plugs vary by country due to different voltage standards and connector types. Therefore, when providing equipment internationally, the power cable must match the destination country’s electrical standards.
A customer is able to print most documents with their USB inkjet printer, but the system is unresponsive when printing a certain report from a custom application. Nothing will print until the computer is restarted and the printer is power cycled. A technician remotes into the PC and confirms that the spooler stops working when this report is sent. After clearing the spooler and reinstalling the drivers from the manufacturer's website, the issue persists. No other sites using the application report similar issues. Which of the following is most likely causing the issue?
Since the printer and drivers function correctly with all other documents, and the spooler fails only when printing from one specific custom application, the issue likely lies within that application’s print-handling code. This indicates a software bug that must be resolved by the application developer.
A small business owner purchases a building and wants to set up an internet connection. A technician examines the target network room and discovers a coaxial wall jack. Which of the following internet types would the technician most likely recommend for the new business?
Answer(s): D
A coaxial wall jack indicates that the location is wired for cable internet service. Cable internet uses coaxial cabling to deliver high-speed connectivity, making it the most suitable and likely option for this setup.
Which of the following is an advantage of using the 2.4GHz wireless frequency?
Answer(s): C
The 2.4GHz frequency offers better range and penetration through walls and obstacles compared to higher frequencies like 5GHz. This makes it less affected by structural interference, though it provides fewer channels and lower speeds.
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