Computer Network Quiz Part-3.
Computer networks are the foundation of modern communication, enabling the exchange of data and resources among interconnected devices. At their core, networks facilitate the transmission of information across various mediums, including wired connections like Ethernet cables and fiber optics, as well as wireless technologies such as Wi-Fi and cellular networks. These networks can range from local area networks (LANs) connecting devices within a single building to vast wide area networks (WANs) spanning continents, forming the backbone of global communication.
The concept of a computer network revolves around the interconnectedness of devices, allowing for the sharing of resources such as files, printers, and internet access. Networks rely on protocols, such as the Transmission Control Protocol/Internet Protocol (TCP/IP), to govern data transmission and ensure seamless communication between devices regardless of their location or underlying technology.
Security is a paramount concern in computer networks, given the prevalence of cyber threats and the importance of safeguarding sensitive information. Network security measures, including firewalls, encryption, and intrusion detection systems, are employed to protect against unauthorized access, data breaches, and malicious attacks, preserving the integrity and confidentiality of data transmitted across the network.