Computer Networks and Security Overview

<p>Broadcasts data to all connected devices inefficiently (B)</p> Signup and view all the answers

<p>Define rules for data transmission across networks (A)</p> Signup and view all the answers

<p>Bridge (C)</p> Signup and view all the answers

<p>Extends the reach of a network by amplifying signals (D)</p> Signup and view all the answers

<p>Network Operating System (C)</p> Signup and view all the answers

<p>To provide an encrypted channel for security (D)</p> Signup and view all the answers

<p>It is a protocol for transferring files over a network. (D)</p> Signup and view all the answers

<p>It acts as a barrier between trusted and untrusted networks. (D)</p> Signup and view all the answers

<p>IMAP stores emails on the server while POP3 downloads them locally. (D)</p> Signup and view all the answers

<p>It supports IoT and real-time applications. (D)</p> Signup and view all the answers

<p>Malicious software disguised as legitimate applications. (D)</p> Signup and view all the answers

<p>Input validation and secure coding practices (D)</p> Signup and view all the answers

<p>It temporarily renders the server unavailable. (A)</p> Signup and view all the answers

<p>LAN (D)</p> Signup and view all the answers

<p>In a Client-Server model, servers are dedicated to specific tasks. (A)</p> Signup and view all the answers

<p>Circuit Switching (C)</p> Signup and view all the answers

<p>The amount of data transmitted in a specific time frame. (C)</p> Signup and view all the answers

<p>TCP (C)</p> Signup and view all the answers

<p>Fiber Optics (D)</p> Signup and view all the answers

<p>It is dependent on a central hub or switch. (C)</p> Signup and view all the answers

<p>Router (B)</p> Signup and view all the answers

<p>It can lead to high delays for large messages. (D)</p> Signup and view all the answers

<p>MAN (C)</p> Signup and view all the answers

<p>Each computer can act as both a client and a server. (D)</p> Signup and view all the answers

<p>Radio Waves (A)</p> Signup and view all the answers

<p>The time delay between sending and receiving data. (C)</p> Signup and view all the answers

A hardware component that lets devices connect to a network. It has a unique identifier (MAC address) that distinguishes it on the network.

A device that connects multiple networks, determining the best path for data packets based on their destination IP addresses.

A device that efficiently connects network devices. It forwards data only to the intended recipient based on their MAC addresses.

A simple network device that sends data to all connected devices, regardless of the intended recipient. This can lead to network congestion.

A device that connects two similar networks and filters traffic by MAC addresses to reduce collisions.

A device that strengthens weak network signals, allowing data to travel longer distances without degradation.

A software platform that manages network resources and communication. Examples include Windows Server, Linux, and Cisco IOS.

A set of standardized rules that dictate how data is transmitted across networks.

Used for transferring web pages, HTTPS provides an encrypted channel for secure communication.

A protocol used for sending emails.

A barrier between a trusted internal network and untrusted external networks. It can be hardware or software-based and uses predefined rules to block or allow traffic.

Converts readable data (plaintext) into a scrambled format (ciphertext). The data is only readable with the correct decryption key.

A malicious program designed to spread and cause harm. It can corrupt files, steal information, or disrupt operations.

Malware disguised as legitimate software. When executed, it can grant unauthorized access to the system.

Fraudulent attempts to steal sensitive information by pretending to be a trustworthy entity.

A network that covers a small geographical area, like a building or office, providing high-speed connectivity and sharing resources like printers.

Spans a larger geographical area, like a city or campus, connecting multiple LANs with high-speed fiber optics.

Connects networks over vast distances, spanning cities, countries, or even the globe.

A network where a central server provides resources (files, applications) to client computers.

A decentralized network where every computer acts as both a client and a server, sharing resources equally.

The first true network, developed by the US Department of Defense, that implemented TCP/IP and laid the groundwork for the modern internet.

The global interconnected network of networks, enabling services like email, the World Wide Web, and cloud computing.

A growing network of smart devices that communicate autonomously to gather and share data.

A way of establishing a dedicated communication path between two devices for the entire duration of a session.

Sends entire messages from sender to receiver, with each node storing and forwarding the message.

The most efficient and common method for data transmission, breaking data into packets that are routed independently.

The amount of data that can be transmitted in a given amount of time, measured in bits per second.

The time delay between sending and receiving data, usually measured in milliseconds.

A set of rules that govern how devices in a network communicate with each other.