1.
What is the smallest unit below used for Data measurement?
Correct Answer
D. Bit
Explanation
The smallest unit below used for data measurement is a bit. A bit represents the basic unit of information in computing and can be either a 0 or a 1. It is the fundamental building block of all digital data and is used to represent the smallest piece of information in a computer system.
2.
Which of the items below would be considered Hardware?
Correct Answer(s)
B. Keyboard
E. Hard Disk
Explanation
The items that would be considered hardware in this list are the keyboard and the hard disk. Hardware refers to the physical components of a computer system that can be touched and interacted with. The keyboard is an input device that allows users to input data into the computer, while the hard disk is a storage device that stores and retrieves data.
3.
Which of the items below would not be considered an Operating System?
Correct Answer(s)
B. Microsoft Office
E. Microsoft Word
Explanation
Microsoft Office and Microsoft Word are both software applications that are part of the Microsoft Office suite. While they are commonly used on operating systems such as Windows, Mac OS, and Linux, they are not operating systems themselves. An operating system is a software that manages computer hardware and software resources and provides common services for computer programs. Windows XP, Mac OS, and Linux are all examples of operating systems.
4.
What does RAM stand for?
Correct Answer
C. Random Access Memory
Explanation
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 directly, without having to read through all the preceding data. RAM is a volatile memory, meaning that its contents are lost when the computer is powered off or restarted. It is used by the computer's operating system and software applications to store and access data quickly, providing fast and temporary storage for running programs and data.
5.
What does ROM stand for?
Correct Answer
A. Read Only Memory
Explanation
ROM stands for Read Only Memory. It is a type of computer memory that stores data permanently and cannot be modified or erased by normal computer operations. The data stored in ROM is non-volatile, meaning it remains even when the computer is turned off. This type of memory is used to store essential instructions and data that are required for the computer to boot up and start functioning. Unlike RAM (Random Access Memory), which is volatile and temporary, ROM retains its data even without power. Therefore, Read Only Memory is the correct answer.
6.
Which of the following would be considered Non-volatile Memory?
Correct Answer(s)
B. CD-R
D. DVD-RW
Explanation
Non-volatile memory refers to a type of computer memory that retains its data even when the power is turned off. Both CD-R and DVD-RW fall under this category as they are write-once and rewritable optical discs respectively. Once data is written on these discs, it remains intact even without power. On the other hand, RAM (Random Access Memory) is a volatile memory that loses its data when power is disconnected. ROM (Read-Only Memory) is non-volatile as well, but it is not included in the answer choices.
7.
What does USB stand for?
Correct Answer
D. Universal Serial Bus
Explanation
USB stands for Universal Serial Bus. It is a standard interface used for connecting computer peripherals such as keyboards, mice, printers, and external storage devices to a computer. The term "universal" denotes its widespread compatibility across different devices and operating systems. "Serial" refers to the way data is transmitted in a sequential manner, one bit at a time, over a single wire. "Bus" refers to the communication pathway that allows multiple devices to be connected and share data with the computer.
8.
Which of the following would be considered an Input device?
Correct Answer
B. Mouse
Explanation
A mouse is considered an input device because it allows the user to input commands and interact with the computer. It is an external device that is connected to the computer and used to move the cursor on the screen, select and click on objects, and navigate through different applications and menus. The user can provide input to the computer by moving the mouse, clicking its buttons, and scrolling the wheel. Therefore, a mouse is an essential input device that enables the user to control and communicate with the computer system.
9.
Which of the following would be considered an Output device?
Correct Answer(s)
C. Monitor
D. Printer
Explanation
An output device is any device that receives information from a computer and presents it to the user in a perceivable form. Both a monitor and a printer fit this definition. A monitor displays visual output, such as images, text, and videos, while a printer produces hard copies of digital information, such as documents or photos. On the other hand, a mouse and a keyboard are input devices as they are used to input information into the computer.
10.
What is a Browser commonly used for?
Correct Answer
C. Surfing the Web
Explanation
A browser is commonly used for surfing the web. It is a software application that allows users to access and view web pages on the internet. It provides a graphical interface for users to navigate through websites, search for information, and interact with online content. Browsers also support features like bookmarking, tabbed browsing, and downloading files. Therefore, the correct answer is "Surfing the Web."
11.
Which of the following is a file extension for a picture file?
Correct Answer
B. .jpg
Explanation
The correct answer is .jpg because it is a commonly used file extension for picture files. .exe is a file extension for executable files, .doc is for Microsoft Word documents, and .txt is for plain text files.
12.
What is a Shortcut?
Correct Answer
B. A quick link to a specific file/folder or location.
Explanation
A shortcut is a quick link to a specific file, folder, or location on a computer. It allows users to access these items without having to navigate through multiple folders or directories. By clicking on a shortcut, users can directly open the desired file or folder, saving time and effort.
13.
What is a URL used for?
Correct Answer
C. A link used to access a specific Web page.
Explanation
A URL, or Uniform Resource Locator, is a specific address used to access a web page on the internet. It is a link that allows users to navigate to a particular webpage by specifying its location. URLs consist of different components such as the protocol (e.g., HTTP or HTTPS), the domain name, and the specific path to the webpage. Therefore, the correct answer is that a URL is used as a link to access a specific web page.
14.
What is a database used for?
Correct Answer
B. Easy and controlled access to specific information
Explanation
A database is used for easy and controlled access to specific information. It allows users to store and organize large amounts of data in a structured manner, making it easier to retrieve and manipulate the desired information. With a database, users can efficiently search, sort, filter, and retrieve specific data based on their requirements, ensuring that they have quick and accurate access to the information they need. This makes databases essential for various applications such as business management, scientific research, data analysis, and much more.
15.
What is SPAM?
Correct Answer
C. Unsolicited emails
Explanation
SPAM refers to unsolicited emails that are sent without the recipient's consent. These emails are typically sent in bulk and often contain advertising or promotional content. They can be annoying and intrusive, cluttering up the recipient's inbox. It is important to be cautious when opening emails from unknown senders and to regularly check and update spam filters to minimize the impact of spam emails.
16.
What does BCC stand for?
Correct Answer
B. Blind Carbon Copy
Explanation
BCC stands for Blind Carbon Copy. In email communication, BCC is used to send a copy of the email to recipients without the knowledge of other recipients. This allows the sender to maintain the privacy of the recipients' email addresses and prevents them from seeing who else received the email. Unlike CC (Carbon Copy), where recipients can see each other's email addresses, BCC ensures anonymity and confidentiality in mass email communication.
17.
Which of the following is used for "IM" (Instant Messaging)?
Correct Answer(s)
A. GoogleTalk
C. MSN Messenger
Explanation
GoogleTalk and MSN Messenger are both examples of instant messaging platforms. Instant messaging allows users to send and receive messages in real-time, making it a convenient and efficient way to communicate online. Both GoogleTalk and MSN Messenger provide features such as text messaging, file sharing, and voice and video calls, making them suitable options for instant messaging. On the other hand, McAffee Security Scanner and Microsoft Outlook are not specifically designed for instant messaging purposes. McAffee Security Scanner is a security software used to scan and protect against malware, while Microsoft Outlook is an email client and personal information manager.
18.
What is Bluetooth?
Correct Answer
B. Bluetooth is a wireless protocol for file transfer and device control.
Explanation
Bluetooth is a wireless protocol for file transfer and device control. It allows devices to communicate with each other wirelessly, enabling the transfer of data and control of devices such as smartphones, tablets, laptops, and other electronic devices. This technology eliminates the need for physical connections and cables, providing convenience and flexibility in transferring files and controlling devices.
19.
What is a Firewall?
Correct Answer
B. A system that blocks unauthorized access to/from your computer or network.
Explanation
A firewall is a system that blocks unauthorized access to and from a computer or network. It acts as a barrier between the internal network and the external network, monitoring incoming and outgoing traffic and filtering it based on predetermined security rules. By doing so, it helps protect the computer or network from potential threats such as unauthorized access, malware, and hacking attempts.
20.
In your browser address field, what does HTTPS mean?
Correct Answer
A. You are using a secure connection to this site.
Explanation
HTTPS stands for Hypertext Transfer Protocol Secure. It is a secure version of HTTP, where the communication between the browser and the website is encrypted. When the browser address field shows HTTPS, it means that the connection to the website is secure and any data transmitted between the browser and the website is encrypted, ensuring privacy and protection against unauthorized access or tampering. Therefore, the correct answer "You are using a secure connection to this site" accurately describes the meaning of HTTPS in the browser address field.