TOTAL IT SUPPORT

  Server & Networking Interview Questions Every IT Professional Should Know Preparing for server-side and networking interviews requires more than definitions — it requires practical understanding and real-world experience. Below is a structured guide covering essential concepts frequently asked in technical interviews. 🔹 SERVER-SIDE INTERVIEW QUESTIONS & ANSWERS 1️⃣ What is a Server? ✅ Definition A server is a hardware or software system that provides services, resources, or data to other computers (clients) over a network. 🎯 Examples File Server → Stores and manages shared files Mail Server → Handles email communication. Domain Controller → Manages authentication and user access. 2️⃣ What is Active Directory? ✅ Definition Active Directory (AD) is a Microsoft directory service used to manage users, computers, groups, and policies within a domain environment. 🔹 Key Components Domain Organisational Units (OU) Users Groups Group ...

  PowerShell A–Z Training Guide for System Administrators I am pleased to share that I have completed a structured PowerShell training guide , designed to take learners from foundational concepts to advanced administrative automation. This resource is tailored for System Administrators who want to transition from manual operations to efficient, automation-driven workflows. 📘 What This PowerShell Guide Covers The PDF is organised in a progressive format, covering: 🔹 Core Fundamentals PowerShell architecture and command structure Understanding cmdlets, parameters, pipeline, and objects Working with variables, arrays, and hash tables 🔹 Scripting & Logic Building Loops and conditional statements Functions and modular scripting Error handling and debugging techniques 🔹 System Administration Tasks Managing files, registry, and Windows services Active Directory automation Windows Server administration Remote management using WinRM Sched...

  Essential CMD Commands Every IT Professional Should Know In modern IT environments, graphical interfaces are convenient — but the command line remains one of the most powerful tools available to IT professionals. Mastering basic Command Prompt (CMD) commands provides speed, control, and precision , especially when diagnosing issues or managing systems under pressure. Below is a structured refresher on essential CMD commands that every IT Support professional should be comfortable using. 🔎 1. System Information & Diagnostics These commands help quickly identify operating system details, hardware information, and running processes. Key Commands: systeminfo – Displays detailed system information (OS version, updates, hardware specs) hostname – Shows the computer name ipconfig /all – Displays full network configuration (IP, MAC, DNS) tasklist – Lists all running processes taskkill /PID <PID> /F – Forcefully terminates a process 👉 These tools ...

  A Successful IT Support Specialist Uses Both Sides of the Brain In today’s technology-driven workplace, IT Support is far more than troubleshooting systems. The most effective IT professionals combine strong technical expertise with exceptional interpersonal skills . This balanced approach not only resolves issues efficiently but also enhances the overall user experience. Technical ability may solve the problem — but people skills define the service. 🔧 Core Technical Competencies These foundational skills ensure systems remain stable, secure, and operational: Hardware & Software Troubleshooting – Diagnosing and resolving technical faults efficiently Operating Systems Expertise – Proficiency in Windows, Linux, and macOS environments Networking Fundamentals – Understanding routers, switches, Wi-Fi configurations, and IP-related issues System Administration – Managing users, permissions, backups, and system policies Cybersecurity Basics – Protecting sys...

  Food Cost Control – Where Real Profit Begins in the Kitchen In the restaurant business, revenue often looks impressive. However, true profitability is quieter — and it lives in food cost control. A restaurant can operate at full capacity and still struggle financially if food costs are not properly managed. That is why food cost control is not merely an accounting function — it is a core operational discipline. Below are practical and proven strategies every professional kitchen should implement. 📋 1. Menu Planning & Engineering A profitable menu is strategically designed, not emotionally created. Key Actions: Standardise and control portion sizes. Utilise seasonal and locally sourced ingredients for cost efficiency. Promote high-margin items (soups, salads, rice, pasta, signature beverages) Streamline the menu where necessary — fewer items reduce waste and complexity. 👉 A smaller, well-engineered menu often generates higher profit than an extensive one. 🛒 2. Purchasing...

  🔐 IPsec VPN vs. SSL VPN: Which One Should You Use? In today’s digital landscape, secure remote access is not optional — it is a business necessity . Organisations of all sizes rely on Virtual Private Networks (VPNs) to protect sensitive data, enable remote work, and ensure secure connectivity between locations. Two of the most widely adopted VPN technologies are IPsec VPN and SSL VPN . While both provide encrypted communication, they serve different purposes and operate at different layers of the network. Let’s break it down clearly and practically. 🔵 IPsec VPN (Network-Level Security) Layer: Operates at Layer 3 (Network Layer) Primary Function: Encrypts entire network traffic between endpoints 🔎 Key Features: Encrypts full network communication Designed for site-to-site connectivity High performance with strong encryption standards Suitable for enterprise-grade infrastructure 📌 Best Use Cases: Office-to-office connections (Branch connectivity) ...