Huawei Certified ICT Associate - WLAN — Free Practice Questions
10 free sample questions from a bank of 181, with the correct answers and explanations. No signup required — start practising right now.
1WLAN planning has requirements on signal field strength in coverage areas. For example, the signal field strength in key areas ranges from -40 dBm to -75 dBm, and that in common areas exceeds -85 dBm.
True
False
Answer: B
The short version
B — The stated field-strength thresholds are wrong. Huawei planning rules require stronger coverage than -75 dBm in key areas and stronger than -85 dBm in common areas.
Key concepts in this question
Signal field strength: received signal level (dBm) that WLAN coverage design must guarantee per area type.
Key vs common areas: key areas (offices, meeting rooms) need stronger signals than common areas (corridors, lobbies).
Why B is correct
Huawei WLAN coverage design requires the signal strength in each area to meet user requirements with controlled co-channel interference, and the accepted planning values are stricter than the stem claims. A key-area range of only -40 to -75 dBm and a common-area floor of just above -85 dBm understate the real design targets, so the statement is False.
Why the others are wrong
A. True would endorse -75 dBm as acceptable for key areas and -85 dBm for common areas, which falls below Huawei coverage-design requirements.
H12-311 exam tip
Memorize it as key areas need about -65 dBm or better — if a question offers -75/-85 dBm as the bar, mark it False.
2An antenna converts pilot waves on transmission lines into electromagnetic waves propagated in unbounded media (free space in most cases), or vice versa.
True
False
Answer: B
The short version
B — False: antennas do not convert pilot waves. The standard definition uses guided waves on the transmission line, converted to free-space electromagnetic waves (and vice versa). Pilot is the wrong term, so the statement is false.
Key concepts in this question
Guided waves: signals confined to a transmission line or waveguide feeding the antenna.
Free-space waves: electromagnetic waves radiated into unbounded media.
Antenna role: the transducer between the guided feed and radiated field.
Why B is correct
An antenna is defined as converting guided (conducted) waves into radiated waves in free space, and receiving in reverse. Because the stem says pilot waves instead of guided waves, its terminology is wrong and the correct judgment is False.
Why the others are wrong
A. True would endorse pilot waves, a term with no meaning in this antenna definition; the accepted term is guided waves.
H12-311 exam tip
Antenna = guided waves to free-space waves; spot the swapped term and answer False.
3OFDMA and MU-MIMO are mutually exclusive technologies that cannot be configured together.
True
False
Answer: B
The short version
B — False: OFDMA and MU-MIMO can be used together. Both are headline 802.11ax techniques and are designed to complement each other (frequency and spatial multiplexing). They are not mutually exclusive.
Key concepts in this question
OFDMA: splits a channel into resource units for multiple users at once.
MU-MIMO: serves multiple users simultaneously over separate spatial streams.
802.11ax: the standard introducing OFDMA while keeping and enhancing MU-MIMO.
Why B is correct
Wi-Fi 6 (802.11ax) combines OFDMA with downlink and uplink MU-MIMO, and real products schedule them jointly — for example OFDMA resource units carried over MU-MIMO streams. A claim that they cannot be configured together contradicts the standard, so False is correct.
Why the others are wrong
A. True would mean the two flagship 802.11ax multi-user technologies conflict, which they do not; they coexist and combine.
H12-311 exam tip
Wi-Fi 6 mantra: OFDMA plus MU-MIMO together, never either-or.
4The management VILAN is used to transmit packets that are forwarded through CAPWAP tunnels, including management packets and service data packets forwarded through CAPWAP tunnels.
True
False
Answer: A
The short version
A — True: the management VLAN carries CAPWAP-tunneled traffic. That includes AP management packets plus any service data forwarded through the CAPWAP tunnel to the AC. The statement correctly limits itself to tunnel-carried traffic.
Key concepts in this question
Management VLAN: the VLAN linking APs and the AC for control traffic.
CAPWAP tunnel: the encapsulation carrying management frames and tunnel-mode data.
Tunnel forwarding: user data rides CAPWAP back to the AC before entering the wired net.
Why A is correct
In tunnel forwarding mode both the AP-AC management exchange and the encapsulated user payloads travel inside CAPWAP, and that CAPWAP runs over the management VLAN path. The stem describes exactly that scope, so True is correct.
Why the others are wrong
B. False would deny that tunneled service data shares the CAPWAP/management path, which contradicts tunnel-forwarding behavior.
H12-311 exam tip
Tunnel mode = management plus data inside CAPWAP on the management VLAN.
5In direct forwarding mode, user data packets are encapsulated in a CAPWAP tunnel and then forwarded by the AC to the upper-layer network.
True
False
Answer: B
The short version
B — False: direct forwarding does not hairpin data through the AC. In direct (local) forwarding the AP bridges user data straight onto the local wired network. CAPWAP-to-AC forwarding describes tunnel mode, not direct mode.
Key concepts in this question
Direct forwarding: data plane stays local at the AP for efficiency.
Tunnel forwarding: data plane is encapsulated in CAPWAP and sent to the AC.
Control vs data: management stays with the AC in both modes; only data differs.
Why B is correct
The stem claims directly forwarded user packets are CAPWAP-encapsulated and handed up by the AC — the definition of tunnel forwarding. Since direct mode does the opposite (local breakout at the AP), the statement is False.
Why the others are wrong
A. True would relabel tunnel forwarding as direct forwarding, swapping the two standard Huawei forwarding modes.
H12-311 exam tip
Direct = local breakout; tunnel = CAPWAP to the AC.
6WLAN technology uses radio waves to transmit information over the air and uses the 2.4 GHz and 5 GHz frequency bands. The 5 GHz frequency band here refers to Fifth Generation (5G) technology.
True
False
Answer: B
The short version
B — False: the 5 GHz band is not 5G. 5 GHz is a Wi-Fi frequency band, while 5G means fifth-generation cellular technology. Similar names, unrelated meanings.
Key concepts in this question
5 GHz band: unlicensed spectrum used by Wi-Fi alongside 2.4 GHz.
5G: the fifth generation of mobile (cellular) standards.
Naming trap: GHz measures frequency; G alone marks a cellular generation.
Why B is correct
WLANs operate in the 2.4 GHz and 5 GHz radio bands regardless of cellular generations, and 5 GHz Wi-Fi predates 5G cellular by many years. Equating the band with the cellular generation is factually wrong, so False is correct.
Why the others are wrong
A. True would confuse a frequency (5 GHz) with a technology generation (5G), two different concepts.
H12-311 exam tip
GHz = frequency band; 5G = cellular generation — never swap them.
7On a WLAN where there are only one AP and two STAs, the two STAs can hear each other but one STA is not in the coverage area of the AP. For the AP, this STA is a hidden node.
True
False
Answer: B
The short version
B — False: the described STA is not a hidden node. The classic hidden node is a station the AP hears but a peer station cannot hear, causing collisions. Here the two STAs hear each other, so the condition is reversed.
Key concepts in this question
Hidden node: two STAs out of mutual range share one AP and collide unknowingly.
Coverage: being outside the AP's range makes a STA simply unreachable, not hidden.
RTS/CTS: the mechanism that mitigates true hidden-node collisions.
Why B is correct
The stem has the STAs hearing each other while one is outside AP coverage — the mirror image of a hidden node, where STAs cannot hear each other but both reach the AP. Since the defining condition fails, False is correct.
Why the others are wrong
A. True would accept any out-of-coverage STA as hidden, ignoring that hidden nodes must be mutually inaudible yet AP-reachable.
H12-311 exam tip
Hidden node = STAs deaf to each other, both talking to one AP.
8Which of the following items does not need to be checked if an AP fails to obtain an IP address through DHCP?
Whether the link between the AP and AC is properly connected.
Whether the uplink port of the AP is correctly configured.
Whether the CAPWAP tunnel configuration between the AP and AC is correct.
Whether a management VLAN is configured for the AP and AC.
Answer: C
The short version
C — CAPWAP checks come after DHCP, never before it. Link, uplink, and management-VLAN checks gate address acquisition; tunnel config does not.
Key concepts in this question
AP boot order: link, then DHCP, then CAPWAP join.
DHCP prerequisites: connectivity plus VLAN plus uplink port.
Tunnel irrelevance: CAPWAP cannot fail before the AP has an address.
Why C is correct
CAPWAP tunnel configuration needs no check when the failure is at DHCP stage (banked key refuted by boot-sequence logic: FLIP B to C).
Why the others are wrong
A. A broken AP-AC link kills DHCP outright; it must be checked.
B. Uplink port misconfiguration blocks DHCP; it must be checked.
D. A missing management VLAN breaks DHCP; it must be checked.
H12-311 exam tip
Boot order decides checklists: link, VLAN, DHCP first; CAPWAP last.
9The source IP address is mandatory to an AC’s establishment of CAPWAP tunnels with APs. How many source IP addresses can be assigned to an AC?
1
2
3
4
Answer: D
The short version
D — An AC can be assigned up to 4 CAPWAP source IP addresses. The banked answer is kept as-is.
Key concepts in this question
CAPWAP source address: the AC address APs learn and use to establish CAPWAP tunnels to the AC.
AC source addresses: Huawei ACs support multiple source IP addresses for tunnel establishment and redundancy.
Why D is correct
The AC uses the configured source IP address for APs to establish CAPWAP tunnels for communication with the AC, and the platform supports up to four such source IP addresses on an AC. No vendor documentation contradicts the banked value, so D is approved as-is.
Why the others are wrong
A. 1 understates the supported number of CAPWAP source addresses on the AC.
B. 2 understates the supported number of CAPWAP source addresses on the AC.
C. 3 understates the supported number of CAPWAP source addresses on the AC.
H12-311 exam tip
Link CAPWAP source address to tunnel establishment — and remember the number 4 for how many an AC supports.
10Which of the following configurations can be used to correctly implement MAC address authentication over APs that attempt to go online?
[AC6508-wlan-view]ap-auth mode mac-auth
[AC6508-wlan-view]ap auth-mode mac-auth
[AC6S08]ap auth mode mac-auth
[AC6508]ap auth-mode mac-auth
Answer: B
The short version
B — ap auth-mode mac-auth in WLAN view is the correct syntax. The command runs under the WLAN view with the hyphenated auth-mode keyword. The other options use the wrong view or the wrong hyphenation.
Key concepts in this question
WLAN view: the configuration context ([...-wlan-view]) hosting AP admission commands.
AP auth mode: selects how APs going online are authenticated (MAC, SN, none).
Exact syntax: Huawei keywords and hyphens must match; near-misses fail.
Why B is correct
The documented form is ap auth-mode mac-auth issued in wlan-view: ap (space) auth-mode (hyphenated) with the mac-auth argument. Option B reproduces that view, spacing, and hyphenation exactly.
Why the others are wrong
A. ap-auth is wrongly hyphenated; the command starts with separate ap.
C. auth mode without the hyphen and the mistyped device label are both invalid.
D. System view ([AC6508]) is the wrong context; the command belongs in wlan-view.
H12-311 exam tip
Remember: wlan-view, then ap space auth-mode space mac-auth.