archives

The nslookup command, or Name Server Lookup, is a command-line tool used for diagnosing DNS (Domain Name System) issues and gathering DNS-related information. The nslookup command in Linux and other operating systems allows users to query DNS servers for domain name and IP address resolutions, perform reverse DNS lookups, and examine DNS records such as […]

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Object-Relational Mapping (ORM) is a technique that allows developers to interact with a database using programming language objects instead of writing SQL queries directly. In the world of software development, efficiently interacting with databases is a key aspect of building reliable and scalable applications. One concept that helps streamline this process is Object-Relational Mapping (ORM). […]

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The structure of an email plays a key role in how clearly and professionally your message is received. Whether you’re writing to a colleague, applying for a job, or simply sending a personal note, understanding how to organize your email is essential. A well-structured email helps you get your point across quickly and makes a […]

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Demand paging is a critical aspect of memory management in modern operating systems (OS). What is demand paging in OS? It ensures that processes can access memory and resources efficiently. As a vital part of virtual memory, demand paging helps to optimize system performance. In this article, we will discuss what demand paging is, how […]

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