1.
When selecting a printer, you need to consider the following criteria........
Correct Answer
E. All of the above
Explanation
When selecting a printer, it is important to consider various criteria. Capacity refers to the amount of paper that the printer can hold at once, which is crucial for large print jobs. Speed indicates how quickly the printer can produce prints, which is essential for time-sensitive tasks. Colour is important if you require the printer to produce color prints, as not all printers have this capability. Quality refers to the resolution and overall output of the printer, ensuring that the prints are clear and professional-looking. Therefore, considering all of these criteria is necessary to make an informed decision when choosing a printer.
2.
The speed of a printer is measured in .................. (1 or 3 words)
Correct Answer
ppm, pages per minute
Explanation
The speed of a printer is typically measured in ppm, which stands for "pages per minute". This measurement indicates the number of pages that the printer can print in one minute. It is a common industry standard for comparing the printing speed of different printers.
3.
The quality of printing is measured in ...................... (1 or 3 words)
Correct Answer
dpi, dots per inch
Explanation
The quality of printing is measured using dpi, which stands for dots per inch. This measurement refers to the number of dots that can be printed in a one-inch line. A higher dpi indicates a higher resolution and better print quality, as more dots can be placed in a given space, resulting in sharper and more detailed prints.
4.
The current standard for parallel printer ports is IEEE.............
Correct Answer
C. 1284
Explanation
The current standard for parallel printer ports is IEEE 1284. This standard specifies the electrical and signaling characteristics of the parallel interface, allowing for faster data transfer between the printer and the computer. It supports bidirectional communication, allowing the printer to send status information back to the computer. IEEE 1284 also introduced new modes of operation, such as ECP (Enhanced Capabilities Port) and EPP (Enhanced Parallel Port), which further improved the performance and functionality of parallel printer ports.
5.
Which wi-fi standard has a transfer data rate of 54 Mbps at 2.4 GHz?
Correct Answer
C. 802.11g
Explanation
The correct answer is 802.11g. This standard has a transfer data rate of 54 Mbps at 2.4 GHz. 802.11a has a higher data rate but operates at a higher frequency range of 5 GHz. 802.11b has a lower data rate of 11 Mbps. 802.11n is a newer standard that can support higher data rates, but it operates at both 2.4 GHz and 5 GHz frequencies.
6.
Which type of print technology do laser printers use?
Correct Answer
B. ElectropHotograpHic
Explanation
Laser printers use electrophotographic print technology. This technology involves a process where an electrostatic image is created on a photosensitive drum using a laser beam. The drum is then coated with toner, which is attracted to the charged areas of the drum. Finally, the toner is transferred onto the paper and fused using heat to create the printed image. This method allows for high-quality and fast printing, making laser printers popular in both home and office environments.
7.
The toner is applied to the latent image on the drum. Which phase of the laser printer process is this?
Correct Answer
D. Developing
Explanation
The correct answer is developing. In the laser printer process, developing is the phase where toner is applied to the latent image on the drum. This is done to make the image visible and ready for transfer onto the paper.
8.
Daisy-wheel and dot-matix are examples of ............ printers. (1 word)
Correct Answer
impact
Explanation
Daisy-wheel and dot-matrix printers are examples of impact printers. These printers work by physically striking an inked ribbon against the paper, creating the desired characters. The impact of the printing mechanism on the ribbon transfers the ink onto the paper, resulting in the printed output. This is in contrast to non-impact printers, such as laser or inkjet printers, which do not involve any physical contact between the printing mechanism and the paper.
9.
There are two types of inkjet nozzles. One type is piezoelectric, the other is ................. (1 word)
Correct Answer
thermal
Explanation
The correct answer is "thermal". The question states that there are two types of inkjet nozzles, one being piezoelectric. This implies that the other type must be different from piezoelectric, and the only remaining option is "thermal". Therefore, "thermal" is the correct answer to complete the sentence.
10.
Which type of printer melts ink and sprays it through a nozzle onto a drum to transfer an image onto paper?
Correct Answer
E. Solid-ink
Explanation
Solid-ink printers melt ink and spray it through a nozzle onto a drum to transfer an image onto paper. This type of printer uses solid blocks of ink that are melted into a liquid form before being sprayed onto the drum. The ink then solidifies on the paper, resulting in vibrant and durable prints. Solid-ink printers are known for their high-quality output and are commonly used in professional printing environments.
11.
It is good practice to plug a printer into a UPS (TRUE or FALSE)
Correct Answer
no, false
Explanation
Plugging a printer into a UPS (Uninterruptible Power Supply) is not considered good practice. UPS devices are typically used to provide backup power to critical devices during power outages or fluctuations. While it may seem logical to protect a printer from power interruptions, printers are not typically considered critical devices that require uninterrupted power. Additionally, UPS devices are generally more expensive than regular surge protectors, which can adequately protect printers from power surges. Therefore, it is not necessary or recommended to plug a printer into a UPS.
12.
..................... is a set of instructions stored on the printer that controls how it operates. (1 word)
Correct Answer
firmware
Explanation
Firmware refers to a set of instructions that are stored on a printer and control its operation. It is a type of software that is permanently installed on the printer's hardware, allowing it to function properly. Firmware can be updated or upgraded to add new features or fix any issues that may arise.
13.
What does OCR stand for?
Correct Answer
optical character recognition
Explanation
OCR stands for optical character recognition. This technology is used to convert different types of documents, such as scanned paper documents, PDF files, or images captured by a digital camera, into editable and searchable data. It analyzes the shapes and patterns of characters in the document and converts them into machine-readable text. OCR is widely used in various industries, including banking, healthcare, and publishing, to automate data entry processes and improve efficiency.
14.
What are the advantages of a handheld scanner? (Pick 2)
Correct Answer(s)
B. Small
D. Portable
Explanation
The advantages of a handheld scanner include its small size and portability. A handheld scanner is compact and easy to carry around, making it convenient for on-the-go scanning. Additionally, its portability allows for flexibility in scanning various documents and images.
15.
A user has called the helpdesk and reported that their printer is printing unknown characters. What would be the possible solution?
Correct Answer
C. Uninstall and reinstall the printer driver
Explanation
The possible solution for the user's printer printing unknown characters is to uninstall and reinstall the printer driver. This can help resolve any issues with the driver that may be causing the printer to print incorrectly. By uninstalling and reinstalling the driver, it ensures that the latest and correct version of the driver is installed, which can potentially fix any compatibility or software-related issues.
16.
................... data transfer is the movement of multiple bits of information in a single cycle. (1 word)
Correct Answer
parallel
Explanation
Parallel data transfer refers to the simultaneous movement of multiple bits of information in a single cycle. This means that multiple bits are transferred at the same time, increasing the overall speed and efficiency of the data transfer process. This is in contrast to serial data transfer, where bits are transferred one after the other. Parallel data transfer is commonly used in computer systems and devices that require high-speed data transmission, such as printers, hard drives, and network connections.
17.
I.link or IEEE 1394 is also known as .................. (1 word)
Correct Answer
firewire
Explanation
IEEE 1394 is a high-speed serial bus interface that is commonly used for connecting devices such as computers, digital cameras, and external hard drives. It is also known by its brand name, FireWire. FireWire allows for fast data transfer rates and can support multiple devices connected in a daisy-chain configuration. It was developed by Apple in the 1990s and became widely adopted in the consumer electronics industry.
18.
What type of printer has paper with a short shelf life?
Correct Answer
thermal
Explanation
Thermal printers use heat to print on special thermal paper, which has a coating that reacts to heat. This type of paper has a short shelf life because over time, the coating can degrade or fade, resulting in poor print quality or complete inability to produce prints. Therefore, thermal printers require fresh thermal paper for optimal printing results.
19.
Which type of printing process uses solid sheets of ink that change directly to gas when the printing head heats the ink?
Correct Answer
A. Dye-sublimation
Explanation
Dye-sublimation printing process uses solid sheets of ink that change directly to gas when the printing head heats the ink. This process involves transferring dye onto a medium (such as paper or fabric) using heat. The solid dye particles are converted into gas without going through a liquid phase, resulting in high-quality prints with vibrant colors and sharp details.
20.
This type of scanner is still in use for high-end reproductions, such as archiving photographs in museums.
Correct Answer
D. Drum
Explanation
A drum scanner is the correct answer because it is specifically designed for high-end reproductions, such as archiving photographs in museums. Drum scanners use a cylindrical drum to hold the image being scanned, which allows for very high-resolution scanning and precise color reproduction. This type of scanner is often used when the highest level of detail and accuracy is required, making it ideal for preserving and archiving valuable and delicate photographs in a museum setting.