Latest Questions 209 total
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151What certifications should I get to become an ethical hacker?
Here's the recommended certification path for ethical hacking:
**Beginner (Start here):**
- **CompTIA Security+** — foundational security...
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152What is SQL injection and how do you prevent it?
SQL injection is an attack where malicious SQL code is inserted into an input field to manipulate the database.
**Example attack:**
```
Use...
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153What is the difference between ethical hacking and penetration testing?
These terms are often used interchangeably but have subtle differences:
**Ethical Hacking:**
- Broad term for any authorised hacking activi...
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154What is Azure DevOps and how is it used?
Azure DevOps is Microsoft's all-in-one DevOps platform covering the full software development lifecycle.
**5 main services:**
1. **Azure Bo...
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155What is Azure Active Directory (Azure AD / Entra ID)?
Azure Active Directory (now called Microsoft Entra ID) is Microsoft's cloud-based identity and access management service.
**Key features:**...
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156What is the difference between Azure VM and Azure App Service?
**Azure Virtual Machine (VM):**
- Full control over OS, software, configuration
- You manage OS updates, security patches
- Best for: legacy...
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157How to pass the AWS Solutions Architect Associate exam?
The AWS SAA-C03 exam has 65 questions in 130 minutes. Here's the proven study plan:
**6-Week Plan:**
Week 1-2: Core services
- EC2 (instan...
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158What is the difference between AWS RDS and DynamoDB?
**RDS (Relational Database Service):**
- Managed SQL databases: MySQL, PostgreSQL, Oracle, SQL Server
- Structured data with fixed schema
- ...
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159What is AWS IAM and why is it important?
IAM (Identity and Access Management) controls **who can do what** in your AWS account.
Key concepts:
- **Users** — individual people with...
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160How does AWS Auto Scaling work?
AWS Auto Scaling automatically adjusts the number of EC2 instances based on demand.
**How it works:**
1. You define a **Launch Template** (...
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161What is the difference between AWS S3 and EBS?
**Amazon S3 (Simple Storage Service):**
- Object storage — stores files, images, backups, static websites
- Accessible from anywhere over ...
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162How to build a RAG chatbot with LangChain and Python?
Here is a simple RAG chatbot using LangChain:
```python
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
from langchain_community....
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163What are the core AWS services every developer should know?
Essential AWS services for developers:
**Compute:**
- EC2 — virtual servers
- Lambda — serverless functions
- ECS/EKS — container orc...
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164What is the difference between ChatGPT, Claude, and Gemini?
All three are large language model (LLM) AI assistants:
| | ChatGPT | Claude | Gemini |
|---|---|---|---|
| Company | OpenAI | Anthropic | ...
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165What is prompt engineering and why does it matter?
Prompt engineering is the practice of designing and optimising text inputs (prompts) to get better outputs from AI language models.
**Why i...
