iEnergizer Interview Questions and Answers

Encryption and decryption come under the confidentiality part of the CIA triad.

• Encryption and decryption are used to protect sensitive information from unauthorized access.

• Confidentiality ensures that only authorized users can access the data.

• Examples of encryption methods include AES, RSA, and DES.

DNS stands for Domain Name System and its purpose is to translate domain names into IP addresses.

• DNS helps users easily access websites by translating human-readable domain names (e.g. www.google.com) into machine-readable IP addresses (e.g. 172.217.3.206).

• It helps in load balancing by distributing traffic among multiple servers based on the IP address resolved by DNS.

• DNS also provides redundancy and fault tolerance by allowing multiple DNS servers to store the same DNS recor...read more

A write blocker is a hardware device or software tool that prevents data from being written to a storage device.

• Used in digital forensics to prevent accidental or intentional modification of data during analysis

• Ensures the integrity of evidence by allowing read-only access to the storage device

• Commonly used in investigations involving computers, mobile devices, and other digital media

• Examples include Tableau write blockers, WiebeTech write blockers

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

• Acts as a barrier between a trusted internal network and untrusted external network

• Filters network traffic based on rules set by the administrator

• Can be hardware-based or software-based

• Examples include Cisco ASA, Palo Alto Networks, and pfSense

CIA Triad is a foundational concept in cybersecurity that stands for Confidentiality, Integrity, and Availability.

• Confidentiality ensures that data is only accessible to authorized individuals.

• Integrity ensures that data is accurate and has not been tampered with.

• Availability ensures that data is accessible when needed, without interruption.

• Examples: Encrypting sensitive information for confidentiality, using checksums for data integrity, and implementing redundancy for avail...read more