Deloitte Networking Quiz-4

Explanation: Framing involves adding a header and trailer to the data unit, marking the beginning and end of the frame to facilitate proper data transmission and reception.

Explanation: Multiplexing is the method of transmitting multiple signals simultaneously over a single communication channel, efficiently utilizing the available bandwidth.

Explanation: Bandwidth refers to the range of frequencies available for data transmission, indicating the capacity of a communication channel to carry data.

 

Explanation: Encoding involves converting data into a suitable format for transmission over a communication channel, ensuring its integrity and proper interpretation.

Explanation: An Intrusion Detection System (IDS) is a security mechanism that observes network traffic for suspicious activities or policy breaches, notifying administrators or taking proactive measures as required.

Explanation: Phishing is a form of cyber-attack that employs fraudulent methods to obtain sensitive information by masquerading as a trustworthy entity in electronic communication.

Explanation: Encryption is the process of transforming data into an unreadable format to prevent unauthorized access, ensuring data security and privacy.

Explanation: Biometrics is a security measure that utilizes unique physical characteristics, such as fingerprints or facial recognition, to authenticate the identity of a user or device accessing a network.

Explanation: A Virtual Private Network (VPN) is a secure and private communication tunnel between two or more devices across a public network, facilitating secure data transmission.

 

Explanation: A firewall serves as a barrier between a trusted internal network and an untrusted external network, managing incoming and outgoing network traffic based on predetermined security rules.