ARUBA ACMA FINAL PAPER 2026
VERIFIED QUESTIONS AND ANSWERS
GRADED A+
⩥ 3G. Answer: Third Generation of Wireless Mobile
Telecommunications Technology. See W-CDMA.
⩥ 3GPP. Answer: Third Generation Partnership Project. 3GPP is a
collaborative project aimed at developing globally acceptable
specifications for third generation mobile systems.
⩥ 4G. Answer: Fourth Generation of Wireless Mobile
Telecommunications Technology. See LTE.
⩥ 802.11. Answer: 802.11 is an evolving family of specifications for
wireless LANs developed by a working group of the Institute of
Electrical and Electronics Engineers (IEEE). 802.11 standards use the
Ethernet protocol and Carrier Sense Multiple Access with collision
avoidance (CSMA/CA) for path sharing.
⩥ 802.11 bSec. Answer: 802.11 bSec is an alternative to 802.11i. The
difference between bSec and standard 802.11i is that bSec implements
Suite B algorithms wherever possible. Notably, Advanced Encryption
Standard-Counter with CBC-MAC is replaced by Advanced Encryption
,Standard - Galois/Counter Mode, and the Key Derivation Function
(KDF) of 802.11i is upgraded to support SHA-256 and SHA-384.
⩥ 802.11a. Answer: 802.11a provides specifications for wireless
systems. Networks using 802.11a operate at radio frequencies in the 5
GHz band. The specification uses a modulation scheme known as
orthogonal frequency-division multiplexing (OFDM) that is especially
well suited to use in office settings. The maximum data transfer rate is
54 Mbps.
⩥ 802.11ac. Answer: 802.11ac is a wireless networking standard in the
802.11 family that provides high-throughput WLANs on the 5 GHz
band.
⩥ 802.11b. Answer: 802.11b is a WLAN standard often called Wi-Fi and
is backward compatible with 802.11. Instead of the Phase-Shift Keying
(PSK) modulation method used in 802.11 standards, 802.11b uses
Complementary Code Keying (CCK) that allows higher data speeds and
makes it less susceptible to multipath-propagation interference. 802.11b
operates in the 2.4 GHz band and the maximum data transfer rate is 11
Mbps.
⩥ 802.11d. Answer: 802.11d is a wireless network communications
specification for use in countries where systems using other standards in
the 802.11 family are not allowed to operate.
,⩥ 802.11e. Answer: 802.11e is an enhancement to the 802.11a and
802.11b specifications that enhances the 802.11 Media Access Control
layer with a coordinated Time Division Multiple Access (TDMA)
construct. It adds error-correcting mechanisms for delay-sensitive
applications such as voice and video. The 802.11e specification provides
seamless interoperability between business, home, and public
environments such as airports and hotels, and offers all subscribers high-
speed Internet access with full-motion video, high-fidelity audio, and
VoIP.
⩥ 802.11g. Answer: 802.11g offers transmission over relatively short
distances at up to 54 Mbps, compared with the 11 Mbps theoretical
maximum of 802.11b standard. 802.11g employs Orthogonal Frequency
Division Multiplexing (OFDM), the modulation scheme used in
802.11a, to obtain higher data speed. Computers or terminals set up for
802.11g can fall back to speed of 11 Mbps, so that 802.11b and 802.11g
devices can be compatible within a single network.
⩥ 802.11h. Answer: 802.11h is intended to resolve interference issues
introduced by the use of 802.11a in some locations, particularly with
military Radar systems and medical devices. Dynamic Frequency
Selection (DFS) detects the presence of other devices on a channel and
automatically switches the network to another channel if and when such
signals are detected. Transmit Power Control (TPC) reduces the radio
frequency (RF) output power of each network transmitter to a level that
minimizes the risk of interference.
, ⩥ 802.11i. Answer: 802.11i provides improved encryption for networks
that use 802.11a, 802.11b, and 802.11g standards. It requires new
encryption key protocols, known as Temporal Key Integrity Protocol
(TKIP) and Advanced Encryption Standard (AES).
⩥ 802.11j. Answer: 802.11j is a proposed addition to the 802.11 family
of standards that incorporates Japanese regulatory extensions to 802.11a;
the main intent is to add channels in the radio frequency (RF) band of
4.9 GHz to 5.0 GHz.
⩥ 802.11k. Answer: 802.11k is an IEEE standard that enables APs and
client devices to discover the best available radio resources for seamless
BSS transition in a WLAN.
⩥ 802.11m. Answer: 802.11m is an Initiative to perform editorial
maintenance, corrections, improvements, clarifications, and
interpretations relevant to documentation for 802.11 family
specifications.
⩥ 802.11n. Answer: 802.11n is a wireless networking standard to
improve network throughput over the two previous standards, 802.11a
and 802.11g. With 802.11n, there will be a significant increase in the
maximum raw data rate from 54 Mbps to 600 Mbps with the use of four
spatial streams at a channel width of 40 MHz.
VERIFIED QUESTIONS AND ANSWERS
GRADED A+
⩥ 3G. Answer: Third Generation of Wireless Mobile
Telecommunications Technology. See W-CDMA.
⩥ 3GPP. Answer: Third Generation Partnership Project. 3GPP is a
collaborative project aimed at developing globally acceptable
specifications for third generation mobile systems.
⩥ 4G. Answer: Fourth Generation of Wireless Mobile
Telecommunications Technology. See LTE.
⩥ 802.11. Answer: 802.11 is an evolving family of specifications for
wireless LANs developed by a working group of the Institute of
Electrical and Electronics Engineers (IEEE). 802.11 standards use the
Ethernet protocol and Carrier Sense Multiple Access with collision
avoidance (CSMA/CA) for path sharing.
⩥ 802.11 bSec. Answer: 802.11 bSec is an alternative to 802.11i. The
difference between bSec and standard 802.11i is that bSec implements
Suite B algorithms wherever possible. Notably, Advanced Encryption
Standard-Counter with CBC-MAC is replaced by Advanced Encryption
,Standard - Galois/Counter Mode, and the Key Derivation Function
(KDF) of 802.11i is upgraded to support SHA-256 and SHA-384.
⩥ 802.11a. Answer: 802.11a provides specifications for wireless
systems. Networks using 802.11a operate at radio frequencies in the 5
GHz band. The specification uses a modulation scheme known as
orthogonal frequency-division multiplexing (OFDM) that is especially
well suited to use in office settings. The maximum data transfer rate is
54 Mbps.
⩥ 802.11ac. Answer: 802.11ac is a wireless networking standard in the
802.11 family that provides high-throughput WLANs on the 5 GHz
band.
⩥ 802.11b. Answer: 802.11b is a WLAN standard often called Wi-Fi and
is backward compatible with 802.11. Instead of the Phase-Shift Keying
(PSK) modulation method used in 802.11 standards, 802.11b uses
Complementary Code Keying (CCK) that allows higher data speeds and
makes it less susceptible to multipath-propagation interference. 802.11b
operates in the 2.4 GHz band and the maximum data transfer rate is 11
Mbps.
⩥ 802.11d. Answer: 802.11d is a wireless network communications
specification for use in countries where systems using other standards in
the 802.11 family are not allowed to operate.
,⩥ 802.11e. Answer: 802.11e is an enhancement to the 802.11a and
802.11b specifications that enhances the 802.11 Media Access Control
layer with a coordinated Time Division Multiple Access (TDMA)
construct. It adds error-correcting mechanisms for delay-sensitive
applications such as voice and video. The 802.11e specification provides
seamless interoperability between business, home, and public
environments such as airports and hotels, and offers all subscribers high-
speed Internet access with full-motion video, high-fidelity audio, and
VoIP.
⩥ 802.11g. Answer: 802.11g offers transmission over relatively short
distances at up to 54 Mbps, compared with the 11 Mbps theoretical
maximum of 802.11b standard. 802.11g employs Orthogonal Frequency
Division Multiplexing (OFDM), the modulation scheme used in
802.11a, to obtain higher data speed. Computers or terminals set up for
802.11g can fall back to speed of 11 Mbps, so that 802.11b and 802.11g
devices can be compatible within a single network.
⩥ 802.11h. Answer: 802.11h is intended to resolve interference issues
introduced by the use of 802.11a in some locations, particularly with
military Radar systems and medical devices. Dynamic Frequency
Selection (DFS) detects the presence of other devices on a channel and
automatically switches the network to another channel if and when such
signals are detected. Transmit Power Control (TPC) reduces the radio
frequency (RF) output power of each network transmitter to a level that
minimizes the risk of interference.
, ⩥ 802.11i. Answer: 802.11i provides improved encryption for networks
that use 802.11a, 802.11b, and 802.11g standards. It requires new
encryption key protocols, known as Temporal Key Integrity Protocol
(TKIP) and Advanced Encryption Standard (AES).
⩥ 802.11j. Answer: 802.11j is a proposed addition to the 802.11 family
of standards that incorporates Japanese regulatory extensions to 802.11a;
the main intent is to add channels in the radio frequency (RF) band of
4.9 GHz to 5.0 GHz.
⩥ 802.11k. Answer: 802.11k is an IEEE standard that enables APs and
client devices to discover the best available radio resources for seamless
BSS transition in a WLAN.
⩥ 802.11m. Answer: 802.11m is an Initiative to perform editorial
maintenance, corrections, improvements, clarifications, and
interpretations relevant to documentation for 802.11 family
specifications.
⩥ 802.11n. Answer: 802.11n is a wireless networking standard to
improve network throughput over the two previous standards, 802.11a
and 802.11g. With 802.11n, there will be a significant increase in the
maximum raw data rate from 54 Mbps to 600 Mbps with the use of four
spatial streams at a channel width of 40 MHz.
