WNS Interview Questions and Answers

Cryptography is the study and practice of techniques for securing information and communication.

• Cryptography involves transforming plaintext into ciphertext to protect data from unauthorized access.

• It includes various algorithms and protocols for encryption, decryption, and key management.

• Examples of cryptographic techniques include symmetric encryption (e.g., AES), asymmetric encryption (e.g., RSA), and hashing (e.g., SHA-256).

• Cryptography is used in various applications lik...read more

The blue screen of death (BSOD) is an error screen displayed on Windows operating systems when a critical system error occurs.

• It is also known as a stop error or system crash.

• It is typically caused by hardware or driver issues.

• When a BSOD occurs, the system halts and displays a blue screen with error codes and a description of the problem.

• Users may need to restart their computer to recover from a BSOD.

• Examples of BSOD error codes include DRIVER_IRQL_NOT_LESS_OR_EQUAL, PAGE_FA...read more

List is mutable, tuple is immutable in Python.

• List can be modified after creation, tuple cannot.

• List is defined using square brackets [], tuple using parentheses ().

• List is used for collections of items that may change, tuple for fixed collections.

• Example: list_example = [1, 2, 3], tuple_example = (1, 2, 3)