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Articles by Prasanna Kotamraju
59 articles
How should I store data into my Mysql database, what type should I assign to a column storing salt values?
A salt is a random value added to passwords before hashing to prevent rainbow table attacks and ensure that identical passwords produce different hash values. When storing salts in a MySQL database, choosing the appropriate data type is crucial for security and performance. Recommended Data Types for Salt Storage The most suitable MySQL data types for storing salt values are: BINARY(16) − Fixed-length binary data, ideal for 128-bit salts generated by cryptographic functions. VARBINARY(32) − Variable-length binary data, suitable for salts of varying lengths up to 256 bits. CHAR(32) − Fixed-length ...
Read MoreWhat do AC and CE mean on a calculator?
AC (All Clear) and CE (Clear Entry) are two important clearing functions found on most calculators that serve different purposes for managing calculator operations and memory. Understanding the distinction between these two clearing functions is essential for efficient calculator use, whether you're performing basic arithmetic or complex calculations. AC (All Clear) Function AC stands for All Clear and performs a complete reset of the calculator. When you press the AC button, it clears the current calculation, resets all active functions, and returns the calculator to its initial state. This includes clearing any pending operations, stored values, and ...
Read MoreWhat are sitemaps? How to create them?
A sitemap is a structured file that provides information about the pages, videos, images, and other files on your website and their relationships. It serves as a roadmap for search engines to discover and crawl your website content more efficiently, ultimately improving your site's Search Engine Optimization (SEO). Sitemaps are particularly valuable for large websites, new websites with few external links, or sites with rich media content. They help search engines understand your site's structure and ensure that all important pages are indexed. Types of Sitemaps Type Purpose Content XML ...
Read MoreWhat is Alexa?
Amazon Alexa is a cloud-based voice service and artificial intelligence-powered voice assistant developed by Amazon. Available on tens of millions of devices from Amazon and third-party manufacturers, Alexa enables users to interact with technology through natural voice commands, creating intuitive and hands-free experiences. Alexa operates through voice recognition technology, processing spoken commands and responding with appropriate actions or information. The service has expanded beyond Amazon's Echo devices to integrate with robots, vacuum cleaners, smart home appliances, mobile apps, and thousands of third-party applications. Alexa Voice Service Architecture User Voice ...
Read MoreWhy are mountains triangular in shape?
There is this favorite painting of every child, a triangular mountain which has a sun peeping through it, birds flying in the shape of small r, a small hut, and a tree. Well in all this, what amazes many of us is the triangular shape of the mountain. Has it ever bothered you, why mountains are triangular in shape and not circular or rectangular or any shape.Let's try to find an answer to this peculiar and amazing question.The mystery behind the triangular mountain shapeMountains take millennia to be formed and there are various forces like tectonic forces, gravity, frictional force, ...
Read MoreWhy do we cry? Can it be controlled?
Humans cry to express their emotional state which may be sadness, anger or joy. It’s a powerful nonverbal communication used by all ages of people to express their strong inner feelings. Shedding tears is common in almost every human being to express their emotions.There can be both positive and negative tears. Crying can be a result of profound joy or happiness, feeling blissful or ultimate contention or due to sadness or feeling helpless.People cry when they feel emotionally stressed or busted. Crying may not be always out of sadness or frustration or hopelessness, though. It’s a way of expressing the ...
Read MoreWhat are some signs to figure out you've nailed the interview?
After we come out of the Interview room, we definitely will have one of the feelings either you have nailed it or completely bombed it. The curiosity kills you till the results are out. But there are some telltale signs that can help you figure out whether the job offer is coming your way or not.Nodding and Smiling − You will get hints from the body language of the interviewer. If he is smiling and nodding a lot, that means he is agreeing to and enjoying your answers. It shows he is listening intently and genuinely interested in your answers. ...
Read MoreHow much does it cost to make an iOS app?
Do you want to make an iOS app? There are many options depending on your requirements, time and budget and complexity of requirement. Prices vary accordingly. Prices vary amongst companies and freelancers, and so do the risk of success.Let us explore the options to develop the app.Hire a software company or mobile app development agency to build your app. If you feel it is very expensive, then you can also partner with an app developing company and share your profits with them.Hire a freelancer and give him your specifications. You can also buy an app template or starter kit and ...
Read MoreHow high can a plane fly?
In the present day fast-forward culture, everything should happen at jet speed. People do businesses across continents and Airplanes are a very convenient way to travel. But many people are not delighted to travel above 35, 000 feet up in the air.How High can a Plane FlyEvery airplane has a certified maximum altitude. The highest certified altitude of an airliner was Concorde's 60, 000 feet. Many of the corporate jets can fly at 51, 000 feet.Regular passenger international flights fly between 35000 to 42000 feet. That is considered as optimum height. "Each individual aircraft has an optimum altitude (for minimum ...
Read MoreHow to turn mobile into a universal remote control?
In this digital world, life has become very easy. Gone are the days to reach out to your TV remote to change the channel. Turn your mobile into a Universal remote control using some very accessible and simple apps and enjoy operating your smart TV, home theatre systems and streaming boxes without putting down your mobile.There are a number of apps that you can download directly to your smartphone or Android devices with IR blasters. The Android phones with these IR blasters can enable the mobile to communicate with any device that takes the command via infrared light beams. There ...
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