Fundamentals Of Network Security! Trivia Quiz

A computer network refers to a group of computers that are interconnected and can communicate with each other. It allows the sharing of resources, such as files and printers, and enables communication through email, messaging, and video conferencing. Therefore, the correct answer is "A number of connected computers," as it accurately describes the concept of a computer network.

LAN stands for Local Area Network. This refers to a network that connects computers and devices within a limited geographical area, such as a home, office, or building. It allows for the sharing of resources, such as files and printers, and enables communication between devices connected to the network. The term "local" signifies the limited area covered by the network, distinguishing it from wide area networks (WANs) that cover larger geographical areas.

WAN stands for Wide Area Network. This is a computer network that spans a large geographical area, typically connecting multiple local area networks (LANs) together. It allows for the transmission of data, voice, and video across long distances, often using leased lines or satellite connections. The term "wide" refers to the large coverage area of the network, which can extend across cities, countries, or even continents.

not-available-via-ai

The statement "IP addresses are same as MAC addresses" is false. IP addresses and MAC addresses are two different types of addresses used in computer networks. An IP address is a numerical label assigned to each device connected to a network, while a MAC address is a unique identifier assigned to the network interface card of a device. IP addresses are used for routing and identifying devices on a network, while MAC addresses are used for identifying devices on a local area network.

A standalone computer refers to a computer that is not connected to a network. This means that it operates independently and does not rely on any external connections to function or access resources. Standalone computers are typically used in situations where network connectivity is not required or not available, such as in certain research facilities or offline environments.

Bus network topology requires terminators because it is a linear network where all devices are connected to a single cable. Without terminators, the signals would bounce back and forth on the cable, causing interference and signal degradation. Terminators are used to absorb these signals and prevent them from reflecting back, ensuring proper communication within the network.

The statement is incorrect. FM radio signal is an example of half-duplex communication, not full-duplex. In half-duplex communication, data can be transmitted in both directions, but not at the same time. In the case of FM radio, the radio station transmits the signal, and the receiver (radio) picks up the signal. However, the receiver cannot transmit back to the radio station simultaneously. Therefore, the correct answer is False.

CSMA/CD stands for Currier Sense Multiple Access with Collusion Detection. This protocol is used in Ethernet networks to avoid collisions between multiple devices trying to transmit data simultaneously. It works by sensing the carrier signal on the network before transmitting data and detecting collisions if they occur. The term "currier" in the answer options seems to be a typographical error, and the correct term is "carrier."

Layer 1 of the OSI model, also known as the Physical layer, is responsible for defining the standards for cabling and connectors. This layer deals with the physical transmission of data, including the electrical, mechanical, and functional specifications of the physical medium used for communication. It ensures that the data is transmitted reliably and efficiently across the network by defining the characteristics of the cables, connectors, and other physical components.

The star network topology is considered the fastest because it allows for direct communication between devices and the central hub (usually a switch). In a star network, each device has its own dedicated connection to the central hub, which eliminates the need for data to pass through multiple devices before reaching its destination. This results in faster data transmission and reduced network congestion compared to bus and ring network topologies, where data must pass through all devices in the network.

Manycast is not a type of address. Unicast refers to a one-to-one communication between a sender and a specific receiver. Anycast refers to a one-to-nearest communication, where a sender sends a message to the nearest receiver among a group of potential receivers. Multicast refers to a one-to-many communication, where a sender sends a message to a group of receivers. Broadcast refers to a one-to-all communication, where a sender sends a message to all the devices on a network. Manycast is not a recognized type of address in networking.

A modem is a device that is used to convert analog signals to digital signals and vice versa. It allows for the transmission of data over communication channels such as telephone lines. The different capitalizations of "modem" in the answer options do not affect the explanation of what a modem does.

The advantages of a LAN include the ability to share peripherals, such as printers and scanners, among multiple computers connected to the network. Additionally, LANs allow for the sharing of software and files, making it easier for users to collaborate and access necessary resources. LANs are also easily expandable, meaning that more devices can be added to the network without significant difficulty. The statement about the smaller the network being more expensive is not a correct advantage of a LAN.

Bridges are actually networking devices used at the data link layer of the OSI reference model, not at the network layer. The network layer is responsible for routing and addressing, while the data link layer handles the physical transmission of data between adjacent network nodes. Bridges operate by examining the MAC addresses of incoming data packets and forwarding them to the appropriate destination based on that information. Therefore, the correct answer is false.

The OSI model consists of seven layers, each responsible for a specific function in network communication. The terms "Transmission" and "Internet" are not valid names for these layers. The correct names for the layers are Application, Data link, Presentation, Session, Transport, Network, and Physical. "Transmission" is not a recognized layer, and "Internet" is not a specific layer but rather a network that operates at the Network layer.

The disadvantages of WAN include the spread of viruses, as the network covers a large area and makes it easier for malware to propagate. Additionally, setting up a WAN network can be expensive due to the need for specialized equipment and infrastructure. Furthermore, WANs require data security measures to avoid hacking, as the wide coverage increases the vulnerability of the network to unauthorized access and data breaches.

The three components of Fiber Optics are LED (Light Emitting Diode), Fiber Glass, and Photo Diode. LED is used to generate light signals, Fiber Glass is the medium that carries the light signals, and Photo Diode is used to receive and convert the light signals back into electrical signals. These components work together to transmit data through optical fibers efficiently and effectively.