Computer Network MCQ Exam Quiz!

A LAN (Local Area Network) is a small network that is limited to a specific area, such as a building, office, or school. It allows devices within this localized area to connect and share resources, such as files and printers, without the need for internet access. Unlike other types of networks, such as MAN (Metropolitan Area Network) or WAN (Wide Area Network), a LAN is typically smaller in scale and serves a more localized purpose. Therefore, the given answer "LAN" accurately describes the small network confined to a localized area.

A computer that facilitates the sharing of data, software, and hardware resources on the network is called a server. Servers are designed to handle requests from clients and provide them with the necessary resources. They are responsible for storing and managing data, running applications, and controlling access to network resources. Unlike clients, servers are typically more powerful and have more storage capacity to handle multiple client requests simultaneously.

The advantages of networks include the ability to share resources, such as printers and storage devices, among multiple users. Networks also allow for the sharing of software, enabling users to access and use applications from different devices. Additionally, networks facilitate the sharing of hardware, such as scanners or cameras, allowing multiple users to utilize these devices. Therefore, the correct answer is "All of These" as all the mentioned advantages are associated with networks.

In a star topology, each node is connected directly to the server via a hub or switch. This means that all communication between the nodes and the server goes through the central hub or switch. The hub or switch acts as a central point of control, allowing for efficient and reliable communication between the nodes and the server. This topology is commonly used in local area networks (LANs) as it provides a high level of scalability and flexibility.

A network is a set of computers that can be interconnected by one or more transmission paths. This allows for communication and data sharing between the computers within the network. Networks can be created using various technologies such as Ethernet, Wi-Fi, or cellular networks. They are essential for enabling communication and resource sharing in both local and wide area environments.

In a bus topology, a single cable is used as a communication medium, and all nodes are connected to this cable. All data transmitted by any node propagates through the cable, and other nodes on the network can receive and process this data. This type of topology is commonly used in Ethernet networks, where all devices are connected to a central cable called a bus.

Both a domain name and an IP address are unique identifiers assigned to a website. A domain name is the human-readable address that people use to access a website, while an IP address is the numerical address that computers use to locate and communicate with the website. Therefore, both options B and C are correct as they represent different aspects of the unique identification of a website.

A cable television network typically uses coaxial cables to transmit signals. Coaxial cables consist of a central conductor surrounded by an insulating layer, a metallic shield, and an outer protective layer. This design allows for the efficient transmission of high-frequency signals without interference. Coaxial cables are commonly used for transmitting television, internet, and telephone signals, making them a suitable example for a cable television network.

A repeater is a device that amplifies a signal being transmitted on the network. It receives the signal, strengthens it, and then retransmits it to extend the signal's reach. This is useful in situations where the signal weakens over long distances or due to obstacles. Unlike switches, hubs, and routers which perform different functions in a network, a repeater specifically focuses on amplifying and extending the signal.

Domain Name Resolution refers to the process of obtaining a corresponding IP address from a domain name. When a user enters a domain name in their web browser, the DNS (Domain Name System) server is responsible for resolving the domain name to its corresponding IP address. This is necessary because computers communicate using IP addresses, not domain names. The DNS server looks up the domain name in its database and returns the IP address associated with that domain name, allowing the user's device to establish a connection with the correct server.

A repeater is a device that amplifies and restores a signal for long-distance transmission. When a signal travels over a long distance, it tends to weaken and lose its strength. A repeater receives the weakened signal, amplifies it, and then retransmits it, ensuring that the signal remains strong and clear. This allows for the transmission of signals over long distances without significant loss or degradation.

Snooping refers to the unauthorized access of someone else's data, email, computer activity, or data communication. It involves intruding into someone's private information without their knowledge or consent. This can be done through various means such as hacking, phishing, or using spyware. Snooping is a violation of privacy and can lead to the misuse of personal information or sensitive data. It is important to protect one's data and take necessary security measures to prevent unauthorized access.

Sahil and Sajal are forming a Personal Area Network (PAN) by connecting their devices over Bluetooth. A PAN is a network that is formed for communication between devices that are in close proximity to each other, typically within a range of 10 meters. Bluetooth technology allows for the transfer of media files and other data between devices, making it suitable for creating a PAN in this scenario.

A firewall is a sophisticated system meticulously crafted to thwart any unauthorized entry into or exit from a private network. It serves as a robust barrier, employing intricate protocols and algorithms to analyze incoming and outgoing data packets, discerning between legitimate and illegitimate transmissions.

A MAC address is a unique identifier assigned to a network interface card (NIC) by the manufacturer. It consists of 6 bytes of address, with each byte separated by a colon. The MAC address is used to identify devices on a local network and is essential for communication between devices at the data link layer of the network protocol stack.