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Month: January 2019

Bi-lateral End-to-End Authentication

January 31, 2019 mfaziz Leave a comment

To counter this we devise a system where all active entities (users, devices, and services) are named, registered and credentialed.…

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Posted in: Concepts Filed under: end to end authentication, saml

E2EE – End to End Encryption

January 30, 2019 mfaziz Leave a comment

End-to-end encryption (E2EE) is a system of communication where only the communicating users can read the messages. … The messages are encrypted by…

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Posted in: Concepts, IAM Filed under: E2EE, IAM, Identity

Encryption Hashing Salting

January 27, 2019 mfaziz Leave a comment

Encryption Applying some sort of algorithms to scramble sensitive information like passwords. Encrypted information can be decrypted as well. This…

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Posted in: Concepts, Interview Questions Filed under: algorithms, concepts, encryptions, hashing, passwords, salts, Secure Hashing Algorithms, SHA

JWT signing: HS256 vs. RS256

January 24, 2019 mfaziz Leave a comment

HS256 is a symmetric algorithm, meaning there is one secret key shared between the identity provider and the recipient of…

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Posted in: Concepts Filed under: HS256, JWT, RS256

AWS Tutorial 1 – Setup EC2 Instance and Connect Using SSH Putty

January 16, 2019 mfaziz Leave a comment

https://youtu.be/_W0FkdLNgzE

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Posted in: AWS, EC2 Instance, tutorials

Count A Given Item from Multi Dimensional Arrays in Javascript

January 14, 2019 mfaziz Leave a comment

This can be achieved by using recursion in javascript.

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Posted in: Concepts, Interview Questions, Javascript

Insert data into table from other tables in MySQL Query

January 11, 2019 mfaziz Leave a comment

 

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Posted in: Interview Questions, MySQL, MySQLi, SQL

SQL Index Pros & Cons

January 10, 2019 mfaziz Leave a comment

Here a few things to think about, when creating an index in SQL: 1. While it (mostly) speeds up a…

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Posted in: Concepts, Interview Questions, MySQL, MySQLi, SQL

Difference between asynchronous programming and multithreading?

mfaziz Leave a comment

As simple as it can be, Threading is about workers & asynchrony is about tasks. Asynchrony is also known as a…

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Posted in: C#, Concepts, Interview Questions

What is Thread Pooling?

mfaziz Leave a comment

A Thread pool is a collection of threads. These threads can be used to perform tasks without disturbing the primary thread. Once…

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Posted in: C#, Concepts, Interview Questions

What is a Race Condition?

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A Race condition occurs when two threads access the same resource and are trying to change it at the same time. The…

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Posted in: C#, Concepts, Interview Questions

What is an XSD file?

January 9, 2019 mfaziz Leave a comment

An XSD file stands for XML Schema Definition. It gives a structure for the XML file. It means it decides…

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Posted in: C#, Concepts, Interview Questions

What is a Thread? What is Multi threading?

mfaziz Leave a comment

A Thread is a set of instructions that can be executed, which will enable our program to perform concurrent processing. Concurrent processing…

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Posted in: C#, Concepts, Interview Questions

Generics & Generic Classes

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Generics or Generic class is used to create classes or objects which do not have any specific data type. The…

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Posted in: C#, Concepts, Interview Questions

What are Delegates in C#?

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Simple as it should be A reference pointer to a method A Delegate is a variable that holds the reference…

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Posted in: C#, Concepts, Interview Questions

What are CORS?

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Cross-Origin Resource Sharing (CORS) is a mechanism that uses additional HTTP headers to tell a browser to let a web application running…

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Posted in: Concepts, HTML, Interview Questions

Describe the Singleton Pattern, and How it Differs from a Static Class?

January 6, 2019 mfaziz Leave a comment

The Singleton pattern has several advantages over static classes. First, a singleton can extend classes and implement interfaces, while a static class cannot (it can extend classes, but it does…

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Posted in: Concepts, Interview Questions

What’s faster – ADO.NET or Entity Framework?

mfaziz Leave a comment

Actually Entity Framework is build at the top of ADO.NET so it can’t be faster. But it makes development much faster. … If looking at ease…

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Posted in: Concepts, Interview Questions

Difference between Stack, Heap and Queue?

mfaziz Leave a comment

Stack, heap, and queue are ways that elements are stored in memory. Stack is used for static memory allocation and…

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Posted in: Concepts, Interview Questions

OOP 4 Building Blocks

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Polymorphism The word polymorphism means having many forms. In object-oriented programming paradigm, polymorphism is often expressed as ‘one interface, multiple functions’. Polymorphism…

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Posted in: C#, Concepts, Interview Questions, OOP

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