Community QuestionSeen on 6 CBTs

Wireless access point (WAP)

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Answer

Filters traffic by port number OSI layer 4 (TCP/UDP) Some firewalls can filter through OSI layer 7 Can encrypt traffic into/out of the network Protect your traffic between sites Can proxy traffic A common security technique Most firewalls can be layer 3 devices (routers) Usually sits on the ingress/egress of the network

3 of 6 indexed CBT versions give this answer·Answer index rebuilt Aug 16, 2026

The indexed versions don't agree on this one

This question appears on 6 CBT versions we've indexed, and they don't all give the same answer. Exam editions change and answer keys get re-cut, so more than one of these was correct on the test it came from. Here is each of them, and how many versions give it.

3 of 6 versionsmost versions

Filters traffic by port number OSI layer 4 (TCP/UDP) Some firewalls can filter through OSI layer 7 Can encrypt traffic into/out of the network Protect your traffic between sites Can proxy traffic A common security technique Most firewalls can be layer 3 devices (routers) Usually sits on the ingress/egress of the network

Comptia A+ Course Notes · Comptia A+ Notes · Comptia Notes

2 of 6 versions

A network connection device at the core of a wireless network.

Comptia A+ Free Study Guide · Comptia A+ Material

1 of 6 version

Wireless Ethernet standard more commonly known as Wi-Fi. based on Industrial, Scientific, and Medical (ISM) Radio Bands.

Comptia A+ Core 1 Study Guide

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