Network Defense Essentials (NDE) Practice Exam

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What type of backup is least likely to disrupt users while ongoing system access is occurring?

  1. Full backup

  2. Cold backup

  3. Incremental backup

  4. Hot backup

The correct answer is: Hot backup

The type of backup least likely to disrupt users while ongoing system access is occurring is a hot backup. A hot backup is performed while the system is online and active, which means users can continue to access and use the system without interruption. This type of backup captures the data in real-time, allowing for the most current data to be backed up without requiring downtime. In contrast, a full backup typically involves taking a comprehensive snapshot of all data at a specific time and may require the system to be offline, depending on the system's design and setup, thus potentially causing disruptions. A cold backup, which necessitates taking the system offline, would also lead to user disruption due to the unavailability of services. Although incremental backups can minimize disruption by backing up only the data that has changed since the last backup, they often still require the system to be online and can impact performance, especially in systems with high activity levels. Thus, the hot backup stands out as the best option for minimizing user disruption during the backup process.