CompTIA Network+ Practice Test 2025 - Free Network+ Practice Questions and Exam Prep Guide.

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Question: 1 / 675

Which mechanism is crucial for using Network Time Security (NTS)?

UDP packets for time synchronization

Periodic time requests from clients

TLS handshake for key exchanges

The mechanism that is crucial for using Network Time Security (NTS) is the TLS handshake for key exchanges. NTS is designed to provide security mechanisms for time synchronization protocols, primarily focusing on ensuring the authenticity and integrity of time information being exchanged over the network.

The TLS handshake is a fundamental part of establishing a secure connection between clients and servers, allowing them to negotiate encryption keys and authentication methods. In the context of NTS, this handshake ensures that time information is securely transmitted and that both parties can verify each other's identities. By employing TLS, NTS can protect network time protocol (NTP) communications from various attacks, such as spoofing and man-in-the-middle attacks, thus maintaining reliable and accurate time synchronization in a network.

Other options, while related to time synchronization, do not specifically secure the transfer of time information in the same way as the TLS handshake does. For instance, periodic time requests do facilitate time synchronization but do not inherently provide security. UDP packets are the transport mechanism typically used by NTP for time synchronization, but they lack built-in security features, making them vulnerable to attacks. IPSec does provide some level of data integrity and security, but it is not specifically tailored for the nuances of secure time synchronization like NTS

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IPSec for data integrity

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