Learn Cryptography: Cryptography is a technique of securing information in the presence of adversaries. It is used to construct and analyze protocols to block the third parties. Various aspects of information security come under this, like data security, authentication, non-repudiation and confidentiality. If you know all of the above, you have a bright chance in Google because cyber security is very important for the entire system of Google.
Learn How to Build Compilers: Compiler is a computer program that transforms source code written in a programming language into another computer language. It is generally used for translating high level programming language source code to a lower level language or machine language. Learning to build this program is one of the key criteria that can help the applicants take a real shot at Google.
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