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Jamie wants to send a confidential file to her friend Alice. For this purpose, they installed an application for securely sharing the file. The application employs an encryption algorithm that usesthe same shared secret key for encryption and decryption of data. Identify the type of cryptography employed by the application used by Alice and Jamie for file sharing.

James was recruited as security personnel in an organization and was instructed to secure the organization's infrastructure from physical threats. To achieve this, James installed CCTV systems near gates, reception, hallways, and workplaces to capture illicit activities inside the premises, identify activities that need attention, collect images as evidence, and aid in an alarm system. Identify the type of physical security control implemented by James in the above scenario.

Clark, a security team member of an organization, was instructed to secure the premises from unauthorized entries. In this process, Clark implemented security controls that allow employees to enter the office only after scanning their badges or fingerprints. Which of the following security controls has Clark implemented in the above scenario?

Messy, a network defender, was hired to secure an organization's internal network. He deployed an IDS in which the detection process depends on observing and comparing the observed events with the normal behavior and then detecting any deviation from it. Identify the type of IDS employed by Messy in the above scenario.

Which of the following algorithms uses a sponge construction where message blocks are XORed into the initial bits of the state that the algorithm then invertible permutes?