Quiz : Basic Concept Of Network

A computer network is a group of computers that are connected together to share data, hardware, and software. This allows for communication and collaboration between the connected devices, enabling the sharing of resources and information. A computer network can be wired or wireless, and it can be used in various settings such as homes, offices, or educational institutions.

The statement is true because it is possible to share the work done on one's computer with other computers on the network. This can be done through various methods such as file sharing, network drives, or remote desktop connections. By enabling sharing settings and permissions, files, documents, or even the entire desktop can be accessed and shared with other computers on the network.

A network is used to easily share documents among multiple devices or users. By connecting devices together, users can access shared folders or drives, allowing for seamless collaboration and file sharing. This eliminates the need for physically transferring files through external storage devices or sending them via email. Additionally, a network provides a centralized location for storing and accessing documents, making it more convenient and efficient for users to retrieve the files they need.

With a computer network, it is possible to share a printer with other computers on the network. This can be done by connecting the printer to a computer that is part of the network and then configuring the necessary settings to allow other computers to access and use the printer. This functionality is commonly available in most network operating systems and allows for convenient sharing of resources such as printers among multiple computers.

A computer network allows multiple devices to connect and communicate with each other, enabling them to share resources such as printers and software. This enhances efficiency and collaboration by eliminating the need for individual devices to have their own dedicated printers or software installations. Instead, these resources can be centrally managed and accessed by any device connected to the network, making it easier for users to utilize them as needed. Therefore, the statement "A computer network can share printers and software" is true.

A network refers to a system in which two or more computers are connected. This connection allows these computers to communicate and share resources, such as files, printers, and internet access. By being interconnected, the computers in a network can work together, increasing efficiency and facilitating collaboration among users. Therefore, the correct answer is "2 or more computers connected."

A router is indeed a networking device that directs data packets between computer networks. It acts as a central hub for information to flow between different devices and networks, ensuring that data is sent to the correct destination. Routers use routing tables and protocols to determine the most efficient path for data transmission. Therefore, the statement "A router is a networking device that forwards data packets between computer networks" is true.

Viruses and malware can indeed spread through a computer network. This is because networks allow for the easy transfer of data and files between connected devices. If one device on the network is infected with a virus or malware, it can easily spread to other devices on the same network, compromising their security and potentially causing damage. Therefore, the statement "Viruses and malware cannot spread via a computer network" is false.

A stand-alone computer refers to a computer that is not connected to any network or other devices for sharing data. In this scenario, since the store clerk mentioned that the computer is not connected to share data, it implies that the computer operates independently and does not require any network or external devices to function. Therefore, the correct answer is a stand-alone computer.

A modem is an example of a communication device as it is used to connect computers or other devices to the internet. It allows for the transmission and reception of data over telephone or cable lines, enabling communication between devices and facilitating internet access. Modems convert digital signals from computers into analog signals that can be transmitted over telephone lines, and then convert analog signals from the telephone lines back into digital signals that computers can understand. Therefore, a modem is a communication device that enables the exchange of information between devices.

Wireless transmission media allows users to move freely because it uses radio waves or infrared signals to transmit data without the need for physical cables. This type of media enables devices to connect to networks and access the internet without being physically tethered to a specific location. It provides convenience and flexibility for users to move around while staying connected to the network.

The question is asking about the forms that transmission media can take. The correct answer is A: Wired and B: Wireless. This means that transmission media can be in the form of either wired connections, such as copper wire or USB cables, or wireless connections, such as radio signals or WiFi.

A printer is the most likely peripheral to be shared via a network because it allows multiple users to connect to it and send print jobs from their respective devices. This enables efficient use of the printer and eliminates the need for each user to have their own individual printer. Sharing a projector or keyboard via a network is less common and typically not necessary, as these peripherals are usually connected directly to a single device. The fourth option is not specified, so it cannot be determined if it is a peripheral that can be shared via a network.

A switch is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device. This definition specifically refers to the use of a switch in the context of computer networks, where it acts as a central hub for connecting multiple devices and facilitating the transfer of data between them.

The correct answer is "Wireless Access Point." WAP stands for Wireless Access Point, which refers to a device that allows wireless devices to connect to a wired network using Wi-Fi. It acts as a central hub for wireless communication, providing a bridge between wireless devices and a wired network infrastructure.

A network is a collection of computers and devices that are connected together through communications devices and transmission media. This allows for the exchange of data and information between the connected devices. By connecting computers and devices in a network, they can share resources, such as files and printers, and communicate with each other. This enables collaboration, data sharing, and efficient problem-solving within the network.

Fiber optic cables have the largest bandwidth among the given options. This is because fiber optic cables use light to transmit data, allowing for a much higher data transfer rate compared to other transmission media. The use of light enables fiber optic cables to have a larger bandwidth, meaning they can transmit more data at a faster rate. Microwave, cellular radio networks, and twisted pair cables have lower bandwidths compared to fiber optic cables.

Wireless transmission media refers to the type of transmission media that uses radio waves to send signals or data. Unlike wired transmission media, which require physical cables, wireless transmission media allows for communication without the need for physical connections. This can include technologies such as Wi-Fi and 4G, which use radio waves to transmit data over the airwaves.

The given answer "Can protect against viruses" is NOT an advantage of networks. Networks actually provide the advantage of being able to protect against viruses by implementing security measures such as firewalls, antivirus software, and network monitoring. Networks allow for centralized control and monitoring of security measures, making it easier to detect and prevent virus attacks.

A communication device refers to any type of hardware that has the capability to transmit data, instructions, and information between a sending device and a receiving device. This can include devices such as modems, routers, network cards, and wireless adapters. These devices enable communication and data transfer between different devices, allowing for the exchange of information over a network or the internet.

A NIC (Network Interface Card) is a hardware component that allows a computer to connect to a network. It provides the physical interface for network cables (wired) or antennas (wireless) and handles the communication between the computer and the network. Every NIC has a unique MAC address and plays a crucial role in both local and internet connections. It’s essential for enabling devices to access LANs or the internet.

A computer that is connected to a network is called a workstation or node because it refers to a computer that is part of a larger network and can communicate with other computers or devices on that network. This term distinguishes it from a standalone computer, which is not connected to any network. It is also different from a mainframe computer, which is a powerful computer used for large-scale computing tasks. Finally, it is distinct from a personal computer, which may or may not be connected to a network.

Watching a television program does not require a computer network because it is typically broadcasted through television signals that are received by the television set. The program is transmitted over the airwaves or through cable/satellite connections directly to the television, eliminating the need for a computer network.

Data, hardware, and software are the materials used and shared in a network. These resources are essential for the functioning of the network and enable communication, data storage, and processing. Therefore, they are referred to as network resources.

A USB Hub is not a communication device because it does not facilitate the transmission of data or information between devices. It is a peripheral device that allows multiple USB devices to be connected to a single USB port on a computer. While it does enable the connection of devices, it does not have the capability to transmit data or communicate with other devices in a network. On the other hand, a Network Interface Card, Modem, and Router are all communication devices that enable the transfer of data between devices or networks.

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Fiber optic cables would normally be used to connect networks across different continents because they have the ability to transmit large amounts of data at high speeds over long distances. This is essential for intercontinental communication as it ensures reliable and fast connectivity between networks located in different parts of the world. Wi-Fi and microwave links are typically used for shorter-range connections within a specific area and may not have the capacity or reach required for intercontinental networking.

The Internet is not a transmission media. It is a global network of interconnected computers and devices that allows for the transmission of data and information. However, it is not a physical medium through which data is transmitted, like fiber optic cable, cellular radio signals, or infrared light. The Internet relies on various transmission media to transmit data, such as cables, satellites, and wireless signals.

Wired transmission media refers to any type of communication network that utilizes physical connections, such as cables or wires, to transmit data between devices. This can include various types of cables, such as copper wire or fiber optic cable. These physical connections provide a reliable and secure means of transmitting data, making wired transmission media a common choice for creating networks.

The correct answer is "Materials or substances capable of carrying one or more signals." This answer accurately describes what transmission media is - it refers to the physical materials or substances that are used to transmit signals, such as cables, wires, or fiber optics. These transmission media are capable of carrying one or more signals, which can be in the form of digital or analog data.