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MODULE 3 COMPUTER CONCEPTS EXAM |VERIFIED
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Alessandro wants to use his desktop computer to video chat with his mother. What hardware does he need to accomplish this? A. Use a webcam and scanner to ensure that the quality of the call is good. B. Use his webcam and speakers so that he and his mother can both see and hear each other. C. Use his keyboard, monitor, and speakers so that both he and his mother can see, hear, and even text each other. D. Use his projector and webcam so that both he and his mother can clearly see and hear each other. - answer- B. Use his webcam and speakers so that he and his mother can both see and hear each other. Alex needs to email his graduation certificate to a prospective employer. He has only physical copies of the certificate. What device could he use to create an electronic copy of the certificate? A. scanner B. plotter C. digital pen D. projector - answer- A. scanner Daniel wants to buy a computer to use for playing games after work. He loves racing games and wants to make sure his device has all the specifications needed to run them smoothly and efficiently. Which of these factors should he consider? A. Form factor - some games do not run on laptops B. Processor core - some applications, especially games, have greater processor requirements C. Size - larger desktops provide more physical space for memory storage, increasing efficiency D. External hard disk capacity - provides additional temporary storage needed to run heavy applications - answer- B. Processor core - some applications, especially games, have greater processor requirements
If you press the key corresponding to letter A on the keyboard, what process is carried out inside the CPU to display the letter on the screen? A. The CPU stores the keystroke as the letter 'A' and displays it on the screen. B. The keyboard transfers the letter 'A' directly to the monitor, without passing through the CPU. C. 'A' is converted to binary code, which the CPU processes. The computer then converts the code back 'A' for display. D. 'A' is converted to special characters, which the screen translates back to 'A' for display. - answer- C. 'A' is converted to binary code, which the CPU processes. The computer then converts the code back 'A' for display. Jack needs a convenient way to browse the Internet, read emails, and store basic data when he travels. Which of the following would be the best option for him? A. He should be using an all-in-one computer. B. He should always find a desktop computer. C. He should make sure to bring a tablet. D. He should be sure to carry his laptop. - answer- C. He should make sure to bring a tablet. Jason takes many photographs on his smartphone while on vacation in Italy. If Jason wants to access these pictures across multiple devices, including his computer, smartphone, and tablet, where should he store them? A. RAM B. ROM C. Cloud storage D. Compact disk - answer- C. Cloud storage Jennifer turns on her laptop and hears a series of beeps. What do they probably indicate? A. operating system error B. out-of-date device driver
A. Disconnect all output devices. B. Transfer contents to an external storage device. C. Disconnect the UPS. D. Remove the internal hard drive on which the operating system is stored. - answer- B. Transfer contents to an external storage device. What could cause an external drive, like a USB flash drive, to not be recognized when plugged into a computer? A. A faulty port B. A dusty computer vent C. Insufficient space on the hard disk drive D. An issue with internet connectivity - answer- A. A faulty port What determines the speed at which data travels? A. Bus width B. Clock speed C. Instructions per cycle (IPC) D. RAM capacity - answer- A. Bus width What device do e-learning applications usually use to help users with visual impairment read digital content? A. Projector B. Plotter C. Motion-sensing controller D. Voice synthesizer - answer- D. Voice synthesizer What devices do not need device drivers to be manually installed, and start to function as soon as they are connected to a computer?
A. Printers B. Monitors C. Plug-and-play devices D. Video cards - answer- C. Plug-and-play devices What is the binary system? A. a number system with two digits, 0 and 1 B. an 8-bit coding scheme C. a number system with 10 digits, 0- D. a 16-bit coding scheme - answer- A. a number system with two digits, 0 and 1 What is the correct sequence of processing instructions in a machine cycle? A. Fetch decode execute store B. Fetch store decode execute C. Fetch execute decode store D. Decode fetch store execute - answer- A. Fetch decode execute store What is the first step to performing hardware maintenance? A. Turn off the computer and remove its power source. B. Install anti-virus software. C. Disconnect all the input and output devices. D. Disconnect the UPS and surge suppressor. - answer- A. Turn off the computer and remove its power source. What is the most common type of storage device for transferring files from one computer to another? A. tape drive
C. Replace the computer's power cord. D. Upgrade RAM. - answer- B. Update the device driver. What type of hard drive has no moving parts, making it fast and durable? A. magnetic hard drive B. solid state drive C. DVD D. tape drive - answer- B. solid state drive When a CPU executes instructions as it converts input into output, it does so with __________. A. the control unit and the arithmetic logic unit B. the hard drive and RAM C. the cache and the motherboard D. RAM and ROM - answer- A. the control unit and the arithmetic logic unit When Alice turned on her laptop this morning, the screen displayed only colorful horizontal lines. Which of the following is most likely to have a problem? A. hard drive B. video card C. external storage devices D. built-in camera - answer- B. video card When considering a computer to purchase, which of the following factors involves the operating system of the computer? A. form factor B. platform C. hardware specifications
D. add-on devices - answer- B. platform When should a user consider restoring the operating system? A. When the programs or apps do not start properly B. When the monitor does not display anything C. When the system slows down D. When the internet does not connect - answer- A. When the programs or apps do not start properly Where on a computer is the operating system generally stored? A. RAM B. Internal hard drive C. Flash drive D. Virtual memory - answer- B. Internal hard drive Which is the most suitable device to use in a classroom or a conference room to deliver presentations? A. Printer B. Voice synthesizer C. Headset D. Projector - answer- D. Projector Which of the following devices is the easiest to upgrade, such as by adding RAM? A. Desktop computers B. Tablets C. Smartphones D. Laptops - answer- A. Desktop computers
Which of the following refers to a condition in which the CPU performs well but the bus speed is slow? A. Bottlenecking B. Clock speed C. Reboot D. Instructions per cycle (IPC) - answer- A. Bottlenecking Which of the following types of RAM needs to be constantly recharged to retain the contents? A. Dynamic RAM (DRAM) B. Static RAM (SRAM) C. Magnetoresistive RAM (MRAM) D. Flash Memory - answer- A. Dynamic RAM (DRAM) Which of these hardware components can you use to store videos? A. External RAM B. Floppy disk C. Hard drive D. Motherboard - answer- C. Hard drive Which of these is an optical medium of storage? A. Blu-ray discs B. Solid state drive C. Cloud storage D. HDD - answer- A. Blu-ray discs Which of these is not an input device? A. Stylus
B. Scanner C. Printer D. Webcam - answer- C. Printer Which type of a computer can be assembled using a monitor, a keyboard, a CPU, speakers, a printer and a mouse? A. A laptop B. An all-in-one computer C. A desktop computer D. A tablet - answer- C. A desktop computer Which type of memory is permanently installed on your computer and attached to the motherboard? A. read-only memory (ROM) B. random access memory (RAM) C. processor cache D. virtual memory - answer- A. read-only memory (ROM) A CPU converts the data entered through the keyboard into output displayed on the monitor. True False - answer- True A device driver is a program that controls a device attached to the computer. True False - answer- True A joystick is a pen-type input device used to draw and tap icons.
Which of the following is a game controller that is held with both hands and used to control movement of on-screen objects by pressing buttons and moving hardware components? A. Joystick B. Gamepad C. Digital Pen D. Stylus - answer- B. Gamepad Which PC design element most affects the display subsystem? A. Contrast ratio B. Buffers C. Cooling D. Port Speed - answer- A. Contrast ratio
