ACMA Wireless Networking Fundamentals & Technologies 3

Question 1

What type of antenna pattern radiates power equally in all directions in the horizontal plane?

Accepted Answer

Omni-directional

Answer

An omni-directional antenna radiates RF energy equally in all horizontal directions, producing a donut-shaped 3D radiation pattern.

Question 2

In Wi-Fi, what does RSSI measure?

Accepted Answer

The relative received signal strength of a wireless signal

Answer

RSSI (Received Signal Strength Indicator) is a relative measurement of the power level of a received radio signal, typically expressed in negative dBm values.

Question 3

Which Wi-Fi frame type is responsible for negotiating association between a client and an AP?

Accepted Answer

Management frame

Answer

Management frames handle administrative tasks such as authentication, association, and beacon transmission between clients and APs.

Question 4

What is the primary purpose of RTS/CTS in 802.11?

Accepted Answer

To mitigate the hidden node problem by reserving the medium

Answer

RTS/CTS (Request to Send / Clear to Send) reserves the wireless medium before a data transmission, reducing collisions caused by hidden nodes.

Question 5

When a wireless client moves between APs within the same ESS without losing its IP address, this is called:

Accepted Answer

Layer 2 roaming

Answer

Layer 2 roaming occurs when a client transitions between APs on the same subnet/VLAN, retaining its IP address without requiring DHCP renewal.

(ACMA) Aruba Certified Mobility Associate Practice Test

(ACMA) Aruba Certified Mobility Associate Practice Test

ACMA Wireless Networking Fundamentals & Technologies 3