Which statement is the most correct with respect to defense in depth?

Group of answer choices

It is commonly used in network security architecture

It is used in network, data and application security architecture.

It enforces security only at physical, MAC and network layer of the OSI model

It is implemented through multiple, concentric zone boundaries,

Which of the following tools are not used to enforce integrity of data in flight?

Group of answer choices

Tunnels

Encryption

Firewalls

VPNs

Which security architecture design principle can be applied to a SaaS based application?

Group of answer choices

Compromise Recording

Open Design

Separation of Privilege

Psychological Acceptability