At Which Layer Does a Packet Filtering Firewall Check Data

question 477

Multiple Choice

At which layer does a packet filtering firewall check data packets?

• A) Application layer
• B) Physical layer
• C) Network layer
• D) Link layer

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Definitions:

Execution

The process of running a computer program or a specific part of the program.

Static Arrays

Static arrays are arrays whose size is fixed at compile-time, and they cannot be resized during program execution.

Global Arrays

Arrays that are declared outside of functions and are accessible by any part of the program.

Default

A preselected option adopted by a computer program or other mechanism when no alternative is specified by the user or programmer.