Principle of least privilege and defense in depth for Tech+

Concept 1

Principle of least privilege and defense in depth

Principle of least privilege and defense in depth. Basic security revolves around the CIA Triad: - Confidentiality: Data accessible only to authorized users. Techniques: encryption, access control, network security (firewalls). - Integrity: Data is accurate and unaltered except by authorized processes. Mechanisms: checksums/hashes, digital signatures, strict access controls. - Availability: Information and resources available when needed. Measures: redundancy, backups, DDoS mitigation. Principle of Least Privilege: Give users minimum access necessary to perform duties. Limits damage if account is compromised. Defense in Depth: Multiple layers of security controls. If one layer fails, others still protect.

Concept 2

Terms to recognize

Recognize these Tech+ terms in simple scenarios: Principle of least privilege and defense in depth, CIA Triad, Confidentiality, Integrity, Availability, Principle of Least Privilege, Defense in Depth, Security Frameworks.

Concept 3

How to recognize it on Tech+

On FC0-U71, stay at beginner IT depth: identify when the question is asking about Principle of least privilege and defense in depth, then choose the basic concept or support action that matches the situation. Do not jump into advanced vendor administration unless the prompt clearly gives that scope.

Q1.A beginner IT question describes this situation: Principle of least privilege and defense in depth. Which lesson concept is being tested?

Q2.How should a new IT learner handle this kind of Tech+ question?

Q3.Before choosing an answer about Principle of least privilege and defense in depth, what should the learner check first?