At What OSI Layer Do Packet Filters Function

question 11

Multiple Choice

At what OSI layer do packet filters function?

• A)Physical layer
• B)Data link layer
• C)Network layer
• D)Transport layer

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Definitions:

Cyanosis

A bluish or purplish discoloration of the skin and mucous membranes due to insufficient oxygen in the blood.

Anxiety

A mental health disorder characterized by feelings of worry, anxiety, or fear that are strong enough to interfere with one's daily activities.

Mechanical Ventilation

A healthcare procedure that employs a device to support or take over the natural process of breathing.

Endotracheal Tube

A flexible tube inserted through the mouth or nose into the trachea (windpipe) to maintain an open airway, facilitate breathing or administer anesthesia.