Unit Four: Data Security Techniques

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Questions and Answers

What is a primary advantage of incremental backups?

They consume more storage space than full backups.

They require more complex recovery processes.

They take longer to execute than full backups.

They perform quicker backups than full backups. (correct)

Archiving involves moving data that is actively used to a separate long-term storage system.

False

What is the main disadvantage of incremental backups?

Complex in restoring due to needing multiple backups.

The incremental backup only stores files that have been added or modified since the last _______ backup.

full Signup and view all the answers

Match the following backup types with their characteristics:

Full Backup = Backup of all data regardless of changes Incremental Backup = Copies only new or modified files Archive = Long-term storage of infrequently accessed data Signup and view all the answers

Which of the following is NOT a type of disaster recovery plan?

Disk site Signup and view all the answers

A cold site is fully equipped and operational when a disaster occurs.

False Signup and view all the answers

What is the purpose of an audit trail?

To record details about user access to files and track how data comes in or leaves the company. Signup and view all the answers

A _____ backup copies all changes made since the last full backup.

differential Signup and view all the answers

Match the recovery plans with their descriptions:

Hot site = Ready to go, best recovery solution Warm site = Set up but not exact duplicates Cold site = Space reserved but not configured for operations Full backup = Copies entire contents of a system Signup and view all the answers

What is the primary advantage of a full backup?

Simplest form of backup, allowing restoration from one location Signup and view all the answers

Incremental backups are the fastest type of backup available.

True Signup and view all the answers

What should businesses do to protect against data loss?

Regularly back up data and maintain disaster recovery plans. Signup and view all the answers

Data loss can occur due to _____ failure, software issues, cyber attacks, or natural disasters.

hardware Signup and view all the answers

Which type of backup involves the least storage space?

Incremental backup Signup and view all the answers

Study Notes

Security Techniques for Data Management

Importance of having disaster recovery plans to restore operations quickly.
Audit trails serve as logs to track user access and data modifications.
A written plan is essential for restoring business operations post-disaster.

Steps Post-Disaster

Plans are typically documented and focus on data protection and minimizing loss.
Critical to minimize downtime and ensure data is stored offsite.
Disasters can stem from natural or man-made causes.
The primary goal is to protect data from uncontrollable circumstances and maintain business continuity.

Types of Recovery Plans

Hot Site: Fully operational duplicate of the main site; can be up and running in hours.
- Advantage: Quickest recovery option.
- Disadvantage: High setup costs.
Warm Site: Partially equipped; takes longer (up to a week) to become operational.
- Advantage: More affordable than hot sites.
- Disadvantage: Extended downtime needed to get fully operational.
Cold Site: Basic reserved space without technology set up.
- Advantage: Much cheaper than hot and warm sites.
- Disadvantage: Significant downtime needed for setup.

Audit Trails

These logs track who accessed what data, when, and how.
Help identify unusual behavior and trace responsibilities for data modifications.
Critical for maintaining transparency in data handling.

Types of Backup Techniques

Full Backup: Comprehensive copy of the entire system.
- Advantage: Simplifies data restoration.
- Disadvantage: Requires substantial storage space and time.
Differential Backup: Copies changes made since the last full backup.
- Advantage: More space-efficient and faster than full backups.
- Disadvantage: Restoring requires the latest full and differential backup, making it less efficient than incremental backups.
Incremental Backup: Captures only new or modified files since the last backup.
- Advantage: Quick and space-efficient.
- Disadvantage: Complex restoration process requiring multiple backup points.

Archiving Data

Archiving involves moving infrequently used data to long-term storage.
Essential for legal compliance and historical records management.
Retrieval is straightforward when needed, ensuring data is maintained without cluttering active storage.

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Description

This quiz explores essential security techniques for data management, focusing on disaster recovery plans and audit trails. Participants will learn about the importance of written plans and strategies to minimize data loss and downtime after disasters, whether man-made or natural. Test your understanding of effective data protection methods.