first 30

Question 1

In which situation would an ESD strike potentially cause harm to the PC?

Answer 1

when replacing a mechanical hard drive with an M.2 SSD, and when installing RAM

Question 2

A person has started a new technical job. In which situation would ESD be an issue?

Answer 2

when installing a processor and RAM

Question 3

A technician is about to begin preventive maintenance on a company PC. In which situation would ESD be an issue?

Answer 3

when replacing a motherboard

Question 4

An instructor has given a student an assignment to assemble a PC. In which situation should the student be aware that ESD is an issue?

Answer 4

when installing RAM

Question 5

What two motherboard components control the system boot operations?

Answer 5

BIOS chip
UEFI chip
(System boot services are provided by the motherboard BIOS and UEFI chips.)

Question 6

A technician is upgrading an ATX motherboard with another ATX motherboard. Which component might be affected by this and need to be upgraded and bought as an additional purchase?

Answer 6

CPU (The motherboard, CPU, and power supply must be compatible.)

Question 7

A customer has requested that a PC be built that will support eSATA. Which component should be checked to be sure that this feature is supported?

Answer 7

chipset (The chipset on a motherboard consists of integrated circuits that control how system hardware interacts with the CPU and motherboard. It also provides the capability and features needed, such as the maximum memory supported on the motherboard, multiple USB ports, eSATA connections, surround sound, and video.)

Question 8

Which memory module used to hold instructions for booting a PC and loading the OS, but is still used on adapters even though the memory contents cannot be changed?

Answer 8

ROM (ROM stands for read-only memory.)

Question 9

What is a characteristic of DDR SDRAM?

Answer 9

It transfers data twice per clock cycle compared to once per clock cycle for SDRAM. (DDR SDRAM transfers data twice per clock cycle, whereas SDRAM transfers data once each clock cycle. Both DDR SDRAM and SDRAM are forms of dynamic memory. The difference in data transfer rate between DDR SDRAM and SDRAM is not determined by the number of pins, nor the operating voltage.)

Question 10

What are two safety hazards when dealing with laser printers?

Answer 10

high voltage, hot components (Laser printers require high voltage when initially powered on and to charge the drum in preparation for writing data to the drum. This high voltage requirement is why most laser printers are not normally connected to a UPS. A laser printer also has a fuser assembly used to apply heat and pressure to the toner to permanently attach it to the paper. The laser printer must be unplugged and the fuser assembly must be allowed to cool before working inside the printer.)

Question 11

Which component requires a technician to install screws externally through the PC case?

Answer 11

power supply (The power supply commonly has four screws that attach from outside the case through case holes into screw holes on the power supply.)

Question 12

A technician is installing an internal HDD. To which motherboard connector will the technician connect the data cable?

Answer 12

SATA (Internal hard drives are commonly SATA drives that have a data cable that extends from the drive to a motherboard SATA connector..)

Question 13

A technician has been asked to install a video card. Which section of the motherboard will the technician use to install the card?

Answer 13

Graphics cards, also known as video cards, are installed into a PCIe x16 expansion slot. The expansion slots on a motherboard are located near the motherboard ports.

Question 14

When a PC is being assembled, what component is connected to the motherboard with a SATA cable?

Answer 14

the optical drive (SATA cables, or serial ATA cables, are used to carry data from drives to the motherboard.)

Question 15

A technician is troubleshooting a computer that is experiencing hardware failure detected by the BIOS. What is one way this failure is indicated?

Answer 15

The computer emits a pattern of beeps indicating the failing device. (Beep codes are a result of POST and these vary between computer vendors based on what BIOS is installed.)

Question 16

Which three features can be configured in the BIOS settings to secure a computer?

Answer 16

drive encryption
TPM
passwords

Question 17

What is the purpose of RAID adapters?

Answer 17

to connect multiple storage devices for redundancy or speed (RAID 0 allows “striping” or writing data across two hard drives, but provides no redundancy. The other RAID versions provide redundancy.)

Question 18

When a new motherboard is being installed, between which two components must thermal compound be applied?

Answer 18

CPU, heat sink ( Safety Data Sheet is a fact sheet that summarizes information about material identification, including hazardous ingredients that can affect personal health, fire hazards, and first-aid requirements. The SDS explains how to dispose of potentially hazardous materials in the safest manner.)

Question 19

Which negative environmental factor does cleaning the inside of a computer reduce?

Answer 19

dust (Accumulated dust inside the computer can prevent the flow of air and can hinder cooling.)

Question 20

What is a recommended procedure to follow when cleaning computer components?

Answer 20

Hold cans of compressed air upright while spraying. (When using compressed air, keep the can upright to prevent the fluid from leaking onto computer components.)

Question 21

What is the purpose of a Safety Data Sheet?

Answer 21

to specify procedures for dealing with potentially hazardous materials (A Safety Data Sheet is a fact sheet that summarizes information about material identification, including hazardous ingredients that can affect personal health, fire hazards, and first-aid requirements. The SDS explains how to dispose of potentially hazardous materials in the safest manner.)

Question 22

On the production floor, a furniture plant has laptops for process monitoring and reporting. The production floor environment is around 80 degrees Fahrenheit (27 degrees Celsius). The humidity level is fairly high around 70 percent. Fans are mounted in the ceiling for air circulation. Wood dust is prevalent. Which condition is most likely to adversely affect a laptop that is used in this environment?

Answer 22

the dust (Most laptops are created to be tolerant of a wide range of humidity levels and room temperatures. Dust, however, can cause overheating and failures.)

Question 23

After a technician tests a theory of probable causes, what two actions should the technician take if the testing did not identify an exact cause?

Answer 23

Establish a new theory of probable causes, Document each test tried that did not correct the problem. (If the exact cause of the problem has not been determined after you have tested all your theories, establish a new theory of probable causes and test it.)

Question 24

hat would happen if a PC that contains a power supply that does not automatically adjust for input voltage is set to 230 volts and attaches to an outlet in the United States?

Answer 24

The PC would not turn on. (In the United States, the wall outlet electrical power is standardized at 120 volts AC.)

Question 25

Which type of network spans a single building or campus and provides services and applications to people within a common organizational structure?

Answer 25

LAN (A LAN is smaller or more contained than a WAN, which can span several cities. A MAN is usually contained in one city. A PAN is a very small network of devices that are located in close proximity to one another, usually within range of a single person.)

Question 26

What are two types of wired high-speed Internet connections?

Answer 26

cable, DSL (able and DSL Internet technologies both use physical cabling to provide an Internet connection to a residence or a small business. Although dial-up is a wired technology, it does not provide a high-speed Internet connection. Satellite and cellular connections provide a wireless Internet connection.)

Question 27

In what two situations would UDP be better than TCP as the preferred transport protocol?

Answer 27

when a faster delivery mechanism is needed, when applications do not need to guarantee delivery of the data (UDP is a very simple transport layer protocol that does not guarantee delivery. Devices on both ends of the conversation are not required to keep track of the conversation. UDP is used as the transport protocol for applications that need a speedy, best-effort delivery.)

Question 28

The current IP configuration of a small company is done manually and is time-consuming. Because of increased network growth, a technician needs a simpler way for IP configuration of workstations. Which service would simplify the workstation IP configuration task?

Answer 28

DHCP (In networks with more than a few hosts, DHCP simplifies the addressing process. A DHCP server automatically assigns host IP addresses.)

Question 29

A company is looking for a next-generation firewall that provides VPN functionality, IDS/IPS functionality, and DoS/DDoS protection. Which device would be best suited for this task?

Answer 29

UTM (A universal threat management (UTM) device is a security device that can provide firewall, IDS/IPS, and proxy server functionality as well as email filtering and DoS/DDoS protection.)

Question 30

A student is helping a friend with a home computer that can no longer access the Internet. Upon investigation, the student discovers that the computer has been assigned the IP address 169.254.100.88. What could cause a computer to get such an IP address?

Answer 30

unreachable DHCP server (When a PC does not have a static IP address or cannot pick one up from a DHCP server, Windows will automatically assign the PC an IP address using APIPA, that uses the range of addresses 169.254.0.0 to 169.254.255.255.)