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  • Placement 360 CourseExplore

    • Applied Cryptography

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    Question 1

    What is the main purpose of applied cryptography?

    • A

      Speed up network connections

    • B

      Use cryptographic techniques to secure real-world systems, data, and communications

    • C

      Compress files for storage

    • D

      Create colorful visualizations of data

    Question 2

    Which cryptographic technique uses a single shared secret key for both encryption and decryption?

    • A

      Public-key cryptography

    • B

      Hash functions

    • C

      Symmetric-key cryptography

    • D

      Digital signatures

    Question 3

    What does OpenSSL primarily provide in applied cryptography?

    • A

      Password management only

    • B

      Open-source toolkit for SSL/TLS, certificates, encryption, and cryptographic operations

    • C

      Web application firewall

    • D

      Network packet analysis

    Question 4

    Which real-world application uses cryptography to verify that software hasn't been tampered with before installation?

    • A

      Online banking

    • B

      Digital signatures for software updates and code signing

    • C

      Full disk encryption

    • D

      Cryptocurrency mining

    Question 5

    How does password hashing protect user credentials during a database breach?

    • A

      It encrypts passwords with AES

    • B

      It sends passwords through VPN tunnels

    • C

      It deletes passwords after login

    • D

      Websites store cryptographic hashes instead of plaintext passwords, making stolen passwords useless without cracking

    There are 5 questions to complete.

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