Final Exam in IAS 2 2024

The state machine model describes a system that is always secure no matter what state it is in.

• True

• False

Dedicated Mode systems are essentially equivalent to multistate systems.

• True

• False

The Trusted Computing Base is a subset of a complete information system.

• True

• False

In System High Mode, all users must have a valid need to know for all information processed by the system.

• True

• False

Compartmented mode systems require users to have access approval for all information they will have access to on the system.

• True

• False

Compartmented mode workstations (CMWs) allow users to process multiple compartments of data simultaneously.

• True

• False

Privileged mode is designed to give user applications access to the full range of instructions supported by the CPU.

• True

• False

Multilevel mode systems control access based on whether the subject’s clearance level dominates the object’s sensitivity label.

• True

• False

Operating systems typically support three modes of operation: user mode, privileged mode, and kernel mode.

• True

• False

In user mode, the CPU allows the execution of its full instruction set to protect the system from malicious users.

• True

• False