Computer components can be   UPGRADED and REPLACED

Any compromise in safety could result in serious ­­­­_______________ or even death

Installing network ­­­­_______________,whether copper or fiber-optic, can be dangerous

Make sure that the tools you are using are in ­­­­_______________ working condition

The fibers can be extremely difficult to see on your skin because they are ­­­­_______________  and small

Never pick up fiber optic fragments with your ­­­­_______________ .

 The importance of occupational safety and health is to ­­­­_______________ diseases, injuries, and deaths that are due to working conditions.

The tools used for working with fiber optics have ­­­­_______________  cutting surfaces that are used to scribe glass.

Use special ­­­­_______________  to help you tell if a fiber is energized

When working with fiber, be sure to disconnect the ­­­­_______________  source

You should wear ­­­­_______________ such as long pants, along-sleeved shirt, sturdy shoes that cover your feet, and gloves to protect you from those toxic materials.

A computer networkis a collection of computers and devices connected together via communication devices and transmission media.

Network Switch provide access to network resources to all the users of the network.

The network operating system is a program that runs on computers and servers, and allows the computers to communicate over the network.

The NIC prepares (formats) and sends data, receives data, and controls data flow between the computer and the network

The operating system are data that fileservers provide to clients such as data files, printer access programs and e-mail

The server computers are basically the customers(users) of the network, as they request and receive services from the servers

Each computer in a network has a special expansion card called a network interface card.

The clients provide access to network resources to all the users of the network

Switch is a telecommunication device grouped as one of computer network components.

Hub is a device that splits a network connection into multiple computers