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Interview questions (100)

  🌐 Networking (25 Questions) What is the difference between a hub, switch, and router? Explain the OSI model and its layers. What is the difference between TCP and UDP? Define IP address classes. What is subnetting and why is it used? Explain DHCP and its purpose. What is DNS and how does it work? Difference between public and private IP addresses. What is NAT and why is it important? Explain VLANs and their benefits. What is the difference between static and dynamic routing? What is a default gateway? Explain ARP and its role in networking. What is the difference between IPv4 and IPv6? What is bandwidth vs. latency? Explain the concept of packet switching. What is a firewall in networking? What is a proxy server? Explain load balancing. What is QoS (Quality of Service)? What is a MAC address? Explain the difference between LAN, WAN, and MAN. What is a VPN and how does it work? What is port forwarding? Explain the difference between symmetric and asymmetric encryption in networki...

Microsoft Office

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   Microsoft Office  Microsoft Office is a suite of productivity software developed by Microsoft. It includes various applications designed to help users create and manage documents, spreadsheets, presentations, and other types of work. Microsoft Office is a collection of programs designed to help you be productive. It includes tools for writing documents (Word), managing data (Excel), creating presentations (PowerPoint), handling emails (Outlook), and more. It's widely used for both personal and professional tasks. Think of it as a digital toolbox for getting work done. If you need help with something specific in Microsoft Office Here are the main components: Microsoft Word: A word processing application used for creating and editing documents, such as reports, essays, and letters. Microsoft Excel: A spreadsheet application used for data analysis, calculations, and creating charts and graphs. Microsoft PowerPoint: A presentation application used for creating slideshow...

Computer Networking (N+)

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  Computer Network: A computer network is a group of computers and other devices connected together to share information and resources. Computer networking is the process of connecting computers and other devices together so they can communicate and share information. It's like creating a web of linked devices that can talk to each other. Benefits of Networking Resource Sharing: Imagine you have one printer and several computers. Instead of each computer needing its own printer, they can all share one through the network. This saves money and makes life easier. Communication: Think of email, chat apps, or video calls. These are all made possible by networks that connect computers and allow them to exchange messages quickly. Data Management: Instead of saving files on each individual computer, you can store them on a central server. This makes it easier to manage, back up, and access data from any device in the network. Scalability: Networks can grow with your needs. If you ad...

Information technology (IT)

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  Information Technology (IT) : Information Technology (IT) is the use of computers and other electronic devices to store, process, and share information. Information Technology (IT) refers to the use of computers, telecommunications, and other electronic devices to store, retrieve, transmit, and manipulate data. It encompasses a wide range of technologies and practices that enable organizations and individuals to manage and process information efficiently. IT includes hardware, software, networking, databases, cybersecurity, and other related fields. Introduction to Information Technology History and Evolution of IT Computer Hardware Components Operating Systems Networking and Internet Technologies Database Management Systems Software Development and Programming Cybersecurity and Information Security Cloud Computing Big Data and Data Analytics Artificial Intelligence and Machine Learning Blockchain Technology Internet of Things (IoT) IT Project Management IT Service Management (I...