Accenture Network Security and Cloud Quiz-1

Explanation: The Identification, Authentication and Access control are the objectives of network security. There is no such thing called lock.

Explanation: An algorithm used in encryption is referred to as a cipher. cipher is an algorithm for performing encryption or decryption

Ciphers, also called encryption algorithms, are systems for encrypting and decrypting data. A cipher converts the original message, called plaintext, into ciphertext using a key to determine how it is done.

Solution:

A software that hijacks your computer and asks you to pay in order for it to be removed.

Ransomware is malware that employs encryption to hold a victim’s information at ransom. A user or organization’s critical data is encrypted so that they cannot access files, databases, or applications. A ransom is then demanded to provide access. Ransomware is often designed to spread across a network and target database and file servers, and can thus quickly paralyze an entire organization.

frequency of failures, recovery time after failure, catastrophe all are network reliability issues.

Key generation:- 

Key generation is the process of generating keys for cryptography. The key is used to encrypt and decrypt data whatever the data is being encrypted or decrypted

Signing and Signature :- 

To create a digital signature, signing algorithms like email programs create a one-way hash of the electronic data which is to be signed. The signing algorithm then encrypts the hash value using the private key (signature key)

Verifying Algorithm:- 

A verification algorithm is a two-argument algorithm A, where one argument is an ordinary input string x, and the other argument is a binary string y called a certificate

PGP is a protocol  used for encrypting, decrypting and signing messages or files using a key pair. PGP is primarily used for encrypting communications at the Application layer, typically used for one-on-one encrypted messaging.

The  Security management portion of LAN management software restricts access, records user activities and audit data etc.

The Caesar Cipher is a type of shift cipher. Shift Ciphers work by using the modulo operator to encrypt and decrypt messages. The Shift Cipher has a key K, which is an integer from 0 to 25. We will only share this key with people that we want to see our message.

 Data Encryption Standard (DES) is a block cipher algorithm that takes the plain text in blocks of 64 bits and converts them to ciphertext using keys of 48 bits. It is a symmetric key algorithm, which means that the same key is used for encrypting and decrypting ​data. Encryption and decryption using the DES algorithm, There is a total 16 Number of rounds in the Data Encryption Standard algorithm