3️⃣Computer networking

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network
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a large system consisting of many similar parts that are connected together to allow movement or communication between or along the parts, or between the parts and a control centre
interconnected
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with different parts or things connected or related to each other
compute
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to calculate an answer or amount by using a machine
capable of
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able to do things effectively and skilfully, and to achieve results
format
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the way in which information is arranged and stored on a computer
complexity
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the state of having many parts and being difficult to understand or find an answer to
whether
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(used especially in reporting questions and expressing doubts) if, or not
data
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information, especially facts or numbers, collected to be examined and considered and used to help decision-making, or information in an electronic form that can be stored and used by a computer
network topology
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arrangement of the elements (links, nodes, etc.) of a communication network
journey
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the act of travelling from one place to another, especially in a vehicle
routing
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the process of sending information from one computer network to another
opt to
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to make a choice, especially of one thing or possibility instead of others
deep learning
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a type of artificial intelligence that uses algorithms (= sets of mathematical instructions or rules) based on the way the human brain operates
DNS (Domain Name System)
When you type a URL into your browser, the DNS resolves the domain name to the corresponding IP address.
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a system that translates human-readable domain names (e.g., www.example.com) into IP addresses, enabling users to access websites more easily
router
The router ensures that data is correctly delivered between the local network and the internet.
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a network device that directs data packets between different networks, determining the best path for data transmission
switch
The switch efficiently manages network traffic, ensuring fast and secure data transmission within the office network.
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a network device that connects multiple devices within a local area network (LAN) and forwards data only to the intended recipient
firewall
The firewall blocks unauthorized access attempts and prevents malicious software from infiltrating the network.
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a security device or software that protects network by monitoring and controlling incoming and outgoing network traffic based on predefined rules
IP Address
To access a website, your computer sends a request to the server's IP address to retrieve the web page.
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a unique numerical label assigned to each device connected to a network to identify and communicate with other devices on the internet or a private network
subnet mask
The subnet mask allows devices on the same local network to communicate directly without going through a router.
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a value used to determine the network and host portions of an IP address, helping devices identify which network they belong to
DHCP (Dynamic Host Configuration Protocol)
With DHCP enabled, your computer can automatically obtain an IP address when connecting to a Wi-Fi network.
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a network protocol that automatically assigns IP addresses to devices connected to the network
VLAN (Virtual Local Area Network
The IT team set up VLANs to segregate different departments' data for better network management.
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a logical division of a physical network into separate segments, allowing the isolation of traffic and enhanced security
NAT (Network Address Translation)
NAT enables devices at home to access the internet using a single public IP address provided by the internet service provider.
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a technique that allows multiple devices within a local network to share a single public IP address
bandwidth
Upgrading to a higher bandwidth plan allows for faster data transfer and better network performance.
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the maximum amount of data that can be transmitted over a network connection in a given time
latency
Online gamers prefer low-latency connections to minimize delays during gameplay.
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the time delay between the sending and receiving of data on a network, affecting the responsiveness of applications and services
protocol
The HTTP protocol governs the communication between web browsers and servers when accessing websites.
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a set of rules that defines how data is transmitted and received over a network
gateway
The gateway connects the local office network to the internet, enabling users to access online resources.
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a device that acts as an entry and exit point between different networks, facilitating communication between them
VPN (Virtual Private Network)
Remote employees use a VPN to securely connect to the company's network and access internal resources.
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a secure network connection that allows users to access a private network over a public network, such as the internet
SSID (Service Set Identifier)
When connecting to a Wi-Fi network, you need to enter the correct SSID to access the internet.
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a unique name given to a wireless network to identify it during Wi-Fi network discovery
ping
The network administrator used the ping command to check if the server was reachable from the client computer.
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a network utility used to test the connectivity between two devices by sending a small data packet and measuring the response time

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