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WorksheetsCSS REVIEW
Total questions: 24
Worksheet time: 15mins
Which device connects multiple Ethernet devices but lacks intelligence in data transmission?
hub
modem
router
switch
According to the Philippine Electrical Code (PEC), network cables should be installed in __________ to avoid tangling and physical damage.
designated raceways
near power lines
open air
unprotected surfaces
What type of cables should be used to prevent the spread of fire in case of an electrical fault?
aluminum-based cables
regular copper cables
fire-retardant cables
plastic-coated wires
Which of the following is an example of fire safety when working with computers?
Covering computer vents with plastic.
Keeping flammable materials away from electronics
Plugging multiple devices into one outlet
Using paper towels to clean inside the Central Processing Unit (CPU).
How does the hard drive differ from Random Access Memory (RAM)?
RAM stores data permanently, while the hard drive holds temporary data.
RAM works even when the computer is off, but the hard drive does not.
The hard drive is used for long-term data storage, while RAM temporarily holds active data.
The hard drive is used only for running programs, while RAM is for permanent storage.
The Philippine Electrical Code (PEC) is designed to ensure:
Faster internet connection speeds.
The compatibility of network devices.
The protection of computers from viruses.
The safety of electrical wiring and installations.
Why should network cables be at least 50mm away from power cables?
to allow easy access for maintenance
to improve the internet speed
to minimize electromagnetic interference (EMI)
to prevent overheating of power lines
If power and data cables must cross, how should they be arranged?
parallel to each other to reduce signal disruption
perpendicularly to reduce signal disruption
randomly positioned for better connection
wrapped around each other for better connection
Why is it important to use only PEC-certified cables, raceways, and connectors?
to ensure quality, longevity, and compliance
to increase internet speed
to make installations faster and cheaper
to reduce the weight of network installations
Why is RAM important for computer performance?
It cools down the system to prevent overheating.
It provides power to the CPU.
It stores all files permanently.
It temporarily holds data for quick access by the processor.
Which of the following best describes the function of a router?
acts as a firewall to block viruses
connects multiple networks and directs data packets between them
provides power to connected devices of the router
stores data for backup purposes to multiple networks
What should Mako do to ensure data is sent only to the intended device in his office network?
install a switch to connect multiple devices and forward data efficiently
set up a router to broadcast wi-fi signals throughout the office
use a hub to send data to all devices at the same time without filtering
use a modem to convert analog signals into digital data
What is the purpose of a modem?
Amplifies internet signals for stronger connection.
Converts analog signals from telephone or cable lines into digital data.
Directs network traffic between devices.
Stores IP addresses for connected computers.
Before opening a computer to replace a faulty component, what should Elijah do to ensure his safety?
Which of the following is NOT a provision of the PEC for network cable installation?
proper cable routing and raceway installation
safe distance from power lines
using uncertified materials to reduce costs
following fire safety measure
Diane notices that the cables under his desk are tangled and some are loosely hanging. What is the best way for him to manage the cables properly?
letting cables tangle under the table
placing heavy objects on top of cables
securing power cords to avoid accidental unplugging
wrapping power cables around sharp edges
A technician needs to run network cables in a newly constructed building. Based on the Philippine Electrical Code (PEC), which of the following is the best approach to prevent damage and ensure safety?
bundling all cables together with power cords to save space
installing cables in designated raceways to avoid physical damage
letting cables hang loosely behind desks to make them easily accessible
running the cables alongside power lines for convenience
A hospital is experiencing network issues where some devices are receiving weak signals in certain areas of the office. What is the most effective way to extend the network coverage?
Add a router to strengthen the signal in weak areas.
Position the router inside a closed cabinet for security.
Reduce the number of devices connected to the router.
Replace all network cables with shorter ones.
In a computer lab, a technician notices that network cables are running close to power lines, which might cause interference. What should be done to follow the Philippine Electrical Code (PEC) and ensure a stable connection?
cover both power and network cables with the same insulation material
increase the internet speed to compensate for interference
relocate network cables at least 50mm away from power lines
wrap network cables tightly with power cables to organize them
A classmate says that a computer can work without a motherboard as long as all the other parts are connected. What is the correct response?
Agree, because storage devices can store data without it.
Agree, because the RAM can process data without the motherboard.
Disagree, because the motherboard connects all the parts together.
Disagree, because the power supply controls all the hardware.
You are developing a new type of RAM that is faster and more efficient. What innovation would make it better?
RAM that does limits its work with high-speed processors.
RAM that never loses data even when the computer is turned off.
RAM that slows down the processor to save power.
RAM with a limited lifespan, needing replacement every month.
What could be a reason for a computer to frequently freeze or become unresponsive?
The hard drive is almost full.
The computer has the latest software updates.
The monitor is set to a low brightness level.
The keyboard is functioning properly.
Which maintenance practice helps in prolonging the lifespan of computer hardware?
Using the computer in a humid environment.
Regularly cleaning dust from internal components.
Ignoring software updates.
Overloading the computer with unnecessary applications.
What is the primary function of a switch in a network?
To amplify the internet signal for better connectivity.
To store data for backup purposes.
To connect multiple devices and manage data traffic efficiently.
To convert digital signals into analog signals.
