10+ IT Infrastructure Engineer Interview Questions and Answers

A database is used for storing, managing, and retrieving structured data, while a data warehouse is used for analyzing and reporting on large volumes of data.

• Database is used for transactional processing, while data warehouse is used for analytical processing.

• Databases are typically normalized, while data warehouses are denormalized for faster query performance.

• Data warehouses often contain historical data for trend analysis, while databases focus on current data for day-to-d...read more

A domain is a group of network resources and users that share a common security database. FSMO roles are specialized domain controller tasks. Creating a VM in Azure involves selecting the appropriate settings and resources.

• A domain is a logical group of network objects, such as computers, users, devices, etc., that share the same Active Directory database.

• FSMO (Flexible Single Master Operations) roles are specialized tasks assigned to domain controllers in an Active Directory...read more

Old servers often lack modern features, while new servers provide enhanced performance, security, and scalability.

• Performance: New servers typically have faster processors and more RAM, improving application performance.

• Security: New servers come with updated security features, such as better encryption and vulnerability patches.

• Scalability: Modern servers are designed to easily scale resources up or down based on demand.

• Energy Efficiency: Newer servers are often more energy-...read more

The extension of SQL file is .sql

• The extension of SQL file is typically .sql

• SQL files contain SQL code used to query and manipulate databases

• Examples of SQL file extensions: script.sql, data.sql

Shell is a global group of energy and petrochemical companies.

• Shell is a multinational corporation headquartered in the Netherlands.

• It is one of the largest oil companies in the world.

• Shell operates in over 70 countries and has a wide range of products and services.

• The company is involved in oil and gas exploration, production, refining, and marketing.

• Shell is also investing in renewable energy sources like wind and solar power.

Diagnosing a system that won't turn on involves checking power, connections, and hardware components systematically.

• Check power source: Ensure the power cable is plugged in and the outlet is functional.

• Inspect power button: Make sure the power button is not stuck or damaged.

• Examine connections: Verify all internal and external connections are secure.

• Listen for sounds: Check for any beeping or fan noises that indicate hardware activity.

• Test with minimal hardware: Remove non-es...read more

A database is a structured collection of data that is organized in a way that allows for easy access, management, and retrieval.

• A database typically consists of tables, which store data in rows and columns.

• It uses a query language, such as SQL, to retrieve and manipulate data.

• Examples of databases include MySQL, Oracle, and MongoDB.

The OSI model is a conceptual framework for understanding network communication in seven layers.

• Layer 1: Physical - Deals with the physical connection (e.g., cables, switches).

• Layer 2: Data Link - Manages node-to-node data transfer (e.g., Ethernet).

• Layer 3: Network - Handles routing of data packets (e.g., IP protocol).

• Layer 4: Transport - Ensures complete data transfer (e.g., TCP, UDP).

• Layer 5: Session - Manages sessions between applications (e.g., APIs).

• Layer 6: Presentation...read more

Troubleshooting skills involve diagnosing and resolving technical issues efficiently and effectively.

• Identify the problem: Gather information about the issue from users or logs.

• Analyze the symptoms: Look for patterns or specific error messages that can guide the diagnosis.

• Develop a hypothesis: Based on the analysis, propose potential causes of the issue.

• Test solutions: Implement fixes in a controlled manner to see if they resolve the problem.

• Document the process: Keep records...read more

Diagnosing internet issues involves systematic checks of hardware, connections, and configurations to identify the root cause.

• Check physical connections: Ensure all cables are securely connected and not damaged.

• Test with multiple devices: If one device can't connect, check if others can to isolate the issue.

• Restart the modem/router: Power cycling can resolve many connectivity issues.

• Run a speed test: Use tools like Speedtest.net to check if the internet speed is as expected.

• C...read more

Active Directory is a directory service developed by Microsoft for Windows domain networks.

• Centralized database for managing network resources

• Stores information about users, computers, and other network objects

• Allows administrators to control access and permissions

• Facilitates single sign-on for users across network services

Routing is the process of selecting the best path for network traffic to reach its destination.

• Routing involves determining the optimal path for data packets to travel from the source to the destination.

• Routers use routing tables to make decisions on how to forward packets based on destination IP addresses.

• Routing protocols like OSPF and BGP are used to exchange routing information between routers.

• Static routing involves manually configuring routes, while dynamic routing prot...read more