👉Subscribe to our new channel:null Imp Question on Network Security is explained in this video by Varun sir. Symmetric Key Cryptography also known as Symmetric Encryption is when a secret key is leveraged for both encryption and decryption functions. This method is the opposite of Asymmetric Encryption where one key is used to encrypt and another is used to decrypt. We have explained Imp Question on Network Security. This video will be helpful for students who are preparing competitive exams like GATE, UGC NET, PSUs, NIC, PGT TGT as well as College/University exams also. ►Computer Networks (Complete Playlist):    • Computer Networks (Complete Playlist)   Other subject-wise playlist Links: -------------------------------------------------------------------------------------------------------------------------------------- ►Design and Analysis of algorithms (DAA):    • Design and Analysis of algorithms (DAA)   ►Database Management System:    • DBMS (Database Management system) Com...   ► Theory of Computation    • TOC(Theory of Computation)   ►Artificial Intelligence:    • Artificial Intelligence (Complete Pla...   ►Computer Architecture:    • Computer Organization and Architectur...   ►Operating System:    • Operating System (Complete Playlist)   ►Structured Query Language (SQL):    • Structured Query Language (SQL)   ►Discrete Mathematics:    • Discrete Mathematics   ►Compiler Design:    • Compiler Design (Complete Playlist)   ►Number System:    • Number system   ►Cloud Computing & BIG Data:    • Cloud Computing & BIG Data   ►Software Engineering:    • Software Engineering   ►Data Structure:    • Data Structure   ►Graph Theory:    • Graph Theory   ►Programming in C:    • C Programming   ►Digital Logic:    • Digital Logic (Complete Playlist)   --------------------------------------------------------------------------------------------------------------------------------------- Our social media Links: ► Subscribe to us on YouTube: null ► Like our page on Facebook: https://www.facebook.com/gatesmashers ► Follow us on Instagram: https://www.instagram.com/gate.smashers ► Follow us on Instagram: https://www.instagram.com/varunainashots ► Follow us on Telegram: https://t.me/gatesmashersofficial ► Follow us on Threads: https://www.threads.net/@gate.smashers -------------------------------------------------------------------------------------------------------------------------------------- ►For Any Query, Suggestion or notes contribution: Email us at: gatesmashers2018@gmail.com #GATE2020#PSU #MostExpectedQuestions