Networking Essentials

What are two factors that must be considered when choosing a computer case? (Choose two.)

• the size of the monitor

• the speed of the memory

• the number of internal drive locations

• the size of the motherboard and the power supply

• the number of LED indicators at the front of the case

A technician looks at a motherboard and sees a 24-pin connector. What component would connect to the motherboard through the use of this 24-pin connector?

• power supply

• video card

• PATA optical drive

• SATA drive

• floppy drive

What electrical unit refers to the number of electrons moving through a circuit per second?

• current

• voltage

• resistance

• power

What characteristic of electricity is expressed in watts?

• the amount of work required to move electrons through a circuit

• the resistance to the flow of current in a circuit

• the amount of electrons flowing through a circuit per second

• the work required to move electrons through a circuit multiplied by the number of electrons flowing through a circuit per second

Which type of memory is primarily used as cache memory?

• DRAM

• RAM

• ROM

• SRAM

Which component controls the communications and interactions between the CPU and other components on the motherboard?

• RAM

• BIOS

• CMOS

• chipset

Which two activities are normally controlled by the Northbridge part of the chipset? (Choose two.)

• communication between the CPU and the I/O ports

• access to the RAM

• communication between the CPU and the hard drive

• access to the video card

• communication between the CPU and the sound card

Which unit of measurement is used to indicate the hard drive speed?

• revolutions per minute

• gigabytes

• pages per minute

• clusters per minute

Which type of interface was originally developed for high-definition televisions and is also popular to use with computers to connect audio and video devices?

• FireWire

• DVI

• HDMI

• USB

• VGA

Which two devices are considered input devices? (Choose two.)

• biometric authentication device

• printer

• digital camera

• projector

• speakers