IT Essentials Chapter 1 Part 1 Exam
This test is design to test the basic hardware and software knowledge of computer systems.
Questions and Answers
- 1.
Describe the purpose of ROM?
- 2.
Which of the following answers are the correct functions of the computer
- A.
Inputs, outputs and computations
- B.
Inputs, processes, and deductions
- C.
Inputs, process, outputs
- D.
None of the above
Correct Answer
C. Inputs, process, outputsExplanation
The correct answer is "inputs, process, outputs." This answer accurately describes the basic functions of a computer. Inputs refer to the data or information that is entered into the computer, processes refer to the actions or operations performed on the inputted data, and outputs refer to the results or information produced by the computer after processing the input. This answer encompasses the fundamental operations of a computer system.Rate this question:
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- 3.
Which of these choices below are input devices?
- A.
Mouse
- B.
Keyboard
- C.
Scanner
- D.
Headset
- E.
All of the above
- F.
None of the above
Correct Answer
E. All of the aboveExplanation
All of the given choices are input devices. A mouse is an input device used to control the cursor on a computer screen. A keyboard is an input device used to input text and commands. A scanner is an input device used to convert physical documents or images into digital format. A headset can also be considered an input device as it is used to input audio into the computer. Therefore, all of the above choices are correct.Rate this question:
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- 4.
Which of the choices below are output devices?
- A.
Monitor
- B.
Printer
- C.
Mouse
- D.
Scanner
- E.
A & B only
- F.
All of the above
Correct Answer
E. A & B onlyExplanation
Monitors and printers are both output devices. Monitors display information visually, while printers produce hard copies of documents or images. The mouse and scanner, on the other hand, are input devices. The mouse allows users to interact with the computer by moving the cursor and selecting items, while a scanner is used to input physical documents or images into a digital format. Therefore, the correct answer is A & B only.Rate this question:
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- 5.
What does the letters in the acronym ROM stand for?
- A.
Random Only Memory
- B.
Read Output Menu
- C.
Rotatable Open Memory
- D.
Read Only Memory
Correct Answer
D. Read Only MemoryExplanation
ROM stands for Read Only Memory. This type of memory is non-volatile, meaning that the data stored in it is not lost when the power is turned off. ROM is used to store permanent data and instructions that cannot be altered or overwritten by normal computer operations. It is commonly used to store firmware, which is software that is permanently programmed into a hardware device.Rate this question:
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- 6.
What does the letters in the acronym RAM mean?
- A.
Real Access Module
- B.
Random Acute Memory
- C.
Repeat Access Menu
- D.
Random Access Memory
Correct Answer
D. Random Access MemoryExplanation
RAM stands for Random Access Memory. This is a type of computer memory that allows data to be stored and retrieved in any order, rather than sequentially. It is called "random access" because the computer can access any piece of data stored in RAM directly, without having to read through all the preceding data. This makes RAM much faster to access than other types of memory, such as hard drives. RAM is used by computers to temporarily store data that is actively being used by the CPU, allowing for quick and efficient processing.Rate this question:
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- 7.
RAM works when the computer is off or on.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
RAM or random access memory only works when the computer is on. Data is can be volatile and the RAM chip/module will only store data when the computer is on.Rate this question:
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- 8.
Of the selection below, which ones are adapter cards?
- A.
Sound Adapter
- B.
PCI Express
- C.
Video Adapter
- D.
Network Interface Cards
- E.
Wireless NIC
- F.
Modem Adapter
Correct Answer(s)
A. Sound Adapter
C. Video Adapter
D. Network Interface Cards
E. Wireless NIC
F. Modem AdapterExplanation
The correct answer includes all the options listed. Adapter cards are devices that allow for the connection of different types of hardware to a computer. Sound adapters, video adapters, network interface cards, wireless NICs, and modem adapters all fall under this category as they provide the necessary connections for their respective functions. PCI Express is not an adapter card itself, but rather a type of interface used for connecting adapter cards to a computer's motherboard.Rate this question:
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- 9.
Only select items that are expansion slots
- A.
Peripheral Component Interconnect (PCI)
- B.
Advanced Graphics Port (AGP)
- C.
PCI-Express
- D.
Mini PCI
Correct Answer(s)
A. Peripheral Component Interconnect (PCI)
B. Advanced Graphics Port (AGP)
C. PCI-Express
D. Mini PCIExplanation
All of the above are expansion slots.Rate this question:
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- 10.
The power supply converts electricity from the wall socket into which of the following?
- A.
Alternating current
- B.
Diminishing Current
- C.
Direct Current
- D.
Appropriate Current
Correct Answer
C. Direct CurrentExplanation
The power supply converts electricity from the wall socket into Direct Current. Direct Current is a type of electrical current that flows in one direction only, providing a steady and constant flow of electricity. This is the type of current that most electronic devices and appliances require to function properly.Rate this question:
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- 11.
Check all types of storage devices
- A.
Hard Disk Drives (HDD)
- B.
Solid State Drives (SSD)
- C.
Floppy Disk Drives (FDD)
- D.
PATA Drives (PDD)
Correct Answer(s)
A. Hard Disk Drives (HDD)
B. Solid State Drives (SSD)
C. Floppy Disk Drives (FDD)Explanation
The given answer includes three types of storage devices: Hard Disk Drives (HDD), Solid State Drives (SSD), and Floppy Disk Drives (FDD). These devices are commonly used for storing and retrieving data on computers and other electronic devices. HDDs and SSDs are modern storage devices that use magnetic and flash memory technology respectively, while FDDs are older and less commonly used due to their limited storage capacity. PATA Drives (PDD) is not included in the answer, possibly because it is not a widely recognized or commonly used storage device.Rate this question:
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- 12.
Power that comes from the wall socket is called _________ current.
Correct Answer(s)
AlternatingExplanation
Alternating current comes from the wall.Rate this question:
- 13.
Two hardware components are used to cool off the computer. Select the two items.
- A.
Heat Sink
- B.
Power Supply
- C.
Fan
- D.
Vents
Correct Answer(s)
A. Heat Sink
C. FanExplanation
Heat Sink and Fan are the two hardware components used to cool off the computer. A heat sink is a passive cooling device that absorbs and dissipates heat from the computer's central processing unit (CPU) or other components. It helps to maintain the temperature within safe limits. On the other hand, a fan is an active cooling device that circulates air and helps in dissipating heat from the computer. Together, these components work to prevent overheating and ensure the proper functioning of the computer.Rate this question:
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- 14.
Select all the different types of RAM (Random Access Memory)
- A.
Dual In-line Memory Module (DIMM)
- B.
Single In-line Memory Module (SIMM)
- C.
Ram Bus Inline Memory Module (RIMM)
- D.
Small Outline Memory Module (SODIMM)
- E.
Dual Inline Package (DIP)
Correct Answer(s)
A. Dual In-line Memory Module (DIMM)
B. Single In-line Memory Module (SIMM)
C. Ram Bus Inline Memory Module (RIMM)
D. Small Outline Memory Module (SODIMM)
E. Dual Inline Package (DIP)Explanation
The correct answer includes all the different types of RAM (Random Access Memory) available. These types include Dual In-line Memory Module (DIMM), Single In-line Memory Module (SIMM), Ram Bus Inline Memory Module (RIMM), Small Outline Memory Module (SODIMM), and Dual Inline Package (DIP). Each of these types has its own unique characteristics and is used in different devices and systems to provide memory storage and access.Rate this question:
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- 15.
The letters in SRAM stand for which of the following...
- A.
Static Random Access Memory
- B.
Simple Random Access Memory
- C.
Sample Read Access Memory
- D.
Supple Random Access Memory
Correct Answer
A. Static Random Access MemoryExplanation
SRAM stands for Static Random Access Memory. It is a type of computer memory that retains data as long as power is supplied to the system. Unlike Dynamic RAM (DRAM), SRAM does not need to be constantly refreshed and is faster and more reliable. Therefore, the correct answer is Static Random Access Memory.Rate this question:
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- 16.
What is a Form Factor?
- A.
Layout and size of a case
- B.
Different types of motherboards
- C.
A small laptop
- D.
A small computer case
Correct Answer(s)
A. Layout and size of a case
B. Different types of motherboardsExplanation
The correct answer is "Layout and size of a case" and "Different types of motherboards". A form factor refers to the physical layout and dimensions of a computer case or motherboard. It determines the compatibility and arrangement of various components within the case, such as the motherboard, power supply, and expansion slots. Different form factors exist for different types of computers, such as desktops, laptops, and servers. It is important to consider the form factor when building or upgrading a computer system to ensure proper fit and compatibility of components.Rate this question:
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- 17.
Memory that saves frequent information is called ___________.
Correct Answer(s)
CacheExplanation
Cache is a type of memory that stores frequently accessed information for faster retrieval. It is designed to reduce the time taken to access data from the main memory by keeping a copy of frequently used data closer to the processor. This helps in improving the overall performance of the system by reducing the latency involved in fetching data from the main memory. Therefore, cache is the correct term to describe the memory that saves frequent information.Rate this question:
- 18.
What are the 4 basis units of Power?
- A.
Voltage, Power, Resistance, Current
- B.
Watts, Amps, Voltage, Ohms
- C.
Voltage, Current, Circuits, Power
- D.
Voltage,
Correct Answer
A. Voltage, Power, Resistance, CurrentExplanation
The correct answer is Watts, Amps, Voltage, Ohms. This answer is correct because power is measured in watts, current is measured in amps, voltage is measured in volts, and resistance is measured in ohms. These four units are the fundamental units used to measure power in electrical circuits.Rate this question:
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- 19.
What does CPU Stand for?
- A.
Central Prompting Utility
- B.
Central Processing Unit
- C.
Constant Processing Utility
- D.
Critical Processing Unit
Correct Answer
B. Central Processing UnitExplanation
The correct answer is "Central Processing Unit." The CPU is the main component of a computer that performs most of the processing inside the computer. It interprets and executes instructions from the computer's memory, performs calculations, and manages the flow of data between different parts of the computer. The CPU is often considered the "brain" of the computer, as it carries out the majority of the computer's operations.Rate this question:
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- 20.
A RJ-45 cable goes into what port.
- A.
Network port
- B.
Graphics Port
- C.
USB Port
- D.
SCSI
Correct Answer
A. Network portExplanation
An RJ-45 cable is commonly used for Ethernet connections, which are used to connect devices to a network. Therefore, the correct answer is "Network port" as this is the port where the RJ-45 cable would be inserted to establish a network connection.Rate this question:
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