Huawei Certified ICT Associate - Access — Free Practice Questions
10 free sample questions from a bank of 223, with the correct answers and explanations. No signup required — start practising right now.
1In UA5000, which of the following boards can provide 32 ADSL2+ interfaces and 32 POTS interfaces at the same time?
ADRI
A32
ADRB
CSRB
Answer: D
The short version
D — CSRB gives 32 ADSL2+ plus 32 POTS on one UA5000 board. It is the combo voice-plus-broadband service board.
Key concepts in this question
UA5000: Huawei large access multiplexer platform.
Combo board: integrates xDSL broadband with POTS voice ports.
ADRI/A32/ADRB: ADSL-only or narrower service boards.
Why D is correct
The CSRB board is documented as providing 32 ADSL2+ interfaces together with 32 POTS interfaces, letting one slot serve both broadband and narrowband voice. The other listed boards do not offer that exact 32-plus-32 combo, so D is the only match for the stated density.
Why the others are wrong
A. ADRI: ADSL-service board without the stated 32 POTS combo.
B. A32: ADSL density board without the stated POTS complement.
C. ADRB: ADSL-service variant without the 32-plus-32 combo role.
H35-210 exam tip
See 32 ADSL plus 32 POTS together and pick CSRB.
2Is the following description correct? The key parameters of ODN network are attenuation, insertion loss, and return loss.
True
False
Answer: A
The short version
A — True; attenuation, insertion loss, and return loss are key ODN metrics. They determine passive-network power budget and reflection quality.
Key concepts in this question
ODN: passive optical distribution network of fiber, splitters, and connectors.
Attenuation / insertion loss: power lost along fiber and through each passive element.
Return loss: reflected-power ratio indicating connector and splice quality.
Why A is correct
ODN planning is a loss-budget exercise: fiber attenuation plus splitter and connector insertion loss must stay within the optical budget, while return loss guards against reflections that impair transmitters. Because all three directly gate acceptance testing, calling them key parameters is true.
Why the others are wrong
B. False: would deny that loss and reflection metrics govern ODN design and testing.
H35-210 exam tip
ODN key words are always loss trio: attenuation, insertion, return.
3If the ONT is added on the GPON port by confirmation, what functions need to be enabled on the OLT?
PON port FEC function
POE function
ONT auto-discovery
GPON line encryption
Answer: C
The short version
C — confirmation-based ONT addition needs auto-discovery on the OLT. The OLT must first see the unprovisioned ONT before confirming it.
Key concepts in this question
ONT auto-discovery: OLT function detecting unregistered ONTs on a PON port.
Confirmation adding: operator confirms a discovered serial number into service.
FEC / encryption / PoE: unrelated link or power options.
Why C is correct
By-confirmation provisioning is a two-step flow: the OLT discovers the ONT's serial number automatically, then the operator confirms it onto the GPON port. Without auto-discovery enabled, the candidate ONT never appears for confirmation. FEC improves reach, encryption secures data, and PoE powers Ethernet devices, none of which expose the ONT for confirmation.
Why the others are wrong
A. PON port FEC: forward error correction for reach, not ONT discovery.
B. POE function: powers attached devices, unrelated to GPON registration.
D. GPON line encryption: secures downstream data after the ONT is added.
H35-210 exam tip
Confirmation always implies auto-discovery first on Huawei OLTs.
4Is the following description correct? The DC upgrade tool requires the support of a license.Without a license, 30 units can be concurrently concurrent by default, and a maximum of 60 units can be concurrent with a license.
True
False
Answer: B
The short version
B — False; the stated license and concurrency numbers are wrong. The description does not match the tool's actual licensing behavior.
Key concepts in this question
DC upgrade tool: batch ONT/terminal upgrade utility.
License-gated concurrency: licensed versus default parallel-upgrade limits.
Exact-number traps: 30-by-default and 60-with-license must match documentation.
Why B is correct
The banked key judges the whole sentence false because the license requirement and the 30-default/60-licensed concurrency figures as worded do not reflect the correct tool specification. In TRUE/FALSE grading a single wrong numeric or licensing clause makes the entire description false, hence B.
Why the others are wrong
A. True: would endorse the 30/60 concurrency and license claim exactly as stated.
H35-210 exam tip
Treat memorized concurrency numbers as exact; any mismatch means False.
5What kind of ICMP messages are used by the PING command?
ICMP address mask request message
ICMP Echo Request message
ICMP timestamp request message
ICMP Echo Reply packet
Answer: B, D
The short version
B and D — ping uses ICMP Echo Request and Echo Reply. The requester sends type 8 and the target returns type 0.
Key concepts in this question
ICMP Echo Request: type 8 message sent by ping source.
ICMP Echo Reply: type 0 message returned by the destination.
Mask / timestamp messages: separate ICMP types not used by basic ping.
Why B and D are correct
A ping exchange is a paired transaction: the source emits an Echo Request and each responsive hop or host answers with an Echo Reply. Round-trip time and loss are computed from that pair, so both B and D are required message types for the command.
Why the others are wrong
A. Address mask request: ICMP type 17 for mask discovery, not ping.
C. Timestamp request: ICMP type 13 for clock measurement, not basic ping.
H35-210 exam tip
Ping always equals the Echo Request plus Echo Reply pair.
6Which of the following is the main control board of the UA5000 high-density system?
PWX
TSSB
IPMB
PVMB
Answer: C, D
The short version
C and D — IPMB and PVMB are the UA5000 high-density control boards. They provide the main control and switching functions.
Key concepts in this question
High-density UA5000: large-configuration system needing dedicated control boards.
IPMB / PVMB: main control boards for IP and voice-capable high-density operation.
PWX / TSSB: power and narrowband-service boards, not main control.
Why C and D are correct
Huawei assigns IPMB and PVMB as the main control boards of the UA5000 high-density system, handling control-plane, switching, and uplink duties. PWX is a power board and TSSB is a narrowband test/service board, so only the C-plus-D pair matches the main-control role.
Why the others are wrong
A. PWX: power supply board, not the system control board.
B. TSSB: service/test support board, not the main controller.
H35-210 exam tip
Main control on high-density UA5000 means the IPMB plus PVMB pair.
7When adding on-lineprofile to MA5680T, what needs to be configured?
C and D — an ont-lineprofile needs T-CONT/DBA binding plus GEM-port mapping. Those two constructs define upstream and downstream transport.
Key concepts in this question
ont-lineprofile: GPON profile binding service flows to PON resources.
T-CONT with DBA: upstream scheduling container tied to a bandwidth template.
GEM port mapping: downstream/transport identifier mapped to service flows.
Why C and D are correct
Adding an ont-lineprofile on the MA5680T provisions the PON bearer: bind each T-CONT to its DBA template for upstream bandwidth, then add GEM ports and their mapping for carrying service data. ONT ETH VLANs belong to the service profile rather than the line profile, and a standalone DBA template must still be bound to be effective.
Why the others are wrong
A. ONT ETH port VLAN: configured in the ont-srvprofile, not the ont-lineprofile.
B. Add DBA template alone: necessary preparation but insufficient without T-CONT binding.
H35-210 exam tip
Line profile equals T-CONT plus GEM; service profile equals VLAN plus ports.
8OneVLANWhat kind of domain can it be regarded as?
Management domain
Broadcast domain
Conflict domain
Physical area
Answer: B
The short version
B — one VLAN is one broadcast domain. Member ports receive one another's broadcasts regardless of physical location.
Key concepts in this question
VLAN: logical Layer 2 grouping over shared switches.
Broadcast domain: failure/scope boundary for broadcast frames.
Collision vs management domains: different segmentation concepts.
Why B is correct
Switches forward broadcasts only within the same VLAN, so each VLAN forms an independent broadcast domain and typically maps to one IP subnet. It is not merely a collision domain, which switches already isolate per port, nor a physical or management grouping.
Why the others are wrong
A. Management domain: administrative grouping, not the forwarding scope of a VLAN.
C. Conflict/collision domain: per-port Layer 2 segmentation, smaller than a VLAN.
D. Physical area: VLANs are logical and independent of physical wiring.
H35-210 exam tip
VLAN always answers broadcast domain on fundamentals questions.
9In the EPON network, what are the management protocols running between the OLT and the ONT?
OMCI
SNMP
OAM
IGMP
Answer: C
The short version
C — EPON uses OAM between OLT and ONT. IEEE 802.3ah EFM OAM manages discovery, loopback, and alarms.
Key concepts in this question
EPON OAM: Ethernet operations, administration, and maintenance channel.
OMCI: GPON-specific management channel, not EPON.
SNMP / IGMP: element-manager and multicast-group protocols, not the OLT-ONT link protocol.
Why C is correct
EPON standardizes management over the Ethernet OAM channel defined for point-to-multipoint fiber, carrying discovery, variable requests, and fault signaling directly between OLT and ONT. OMCI belongs to the GPON/ITU-T family, while SNMP manages the element from the NMS and IGMP handles multicast membership, so only OAM fits.
Why the others are wrong
A. OMCI: GPON ONT management and control interface, not EPON.
B. SNMP: NMS-to-OLT management, not the PON-section protocol.
D. IGMP: multicast group management for IPTV, not ONT management.
H35-210 exam tip
EPON pairs with OAM; GPON pairs with OMCI.
10Which of the following parameters are defined in an ONT line profile?
Mapping between GEM ports and data packets
GEM ports
T-CONT
Number of Ethernet ports on the ONT
Answer: A, B, C
The short version
A and B and C — ONT line profile defines GEM ports, their packet mapping, and T-CONT. Ethernet port counts live in the service profile.
Key concepts in this question
GEM ports: GPON encapsulation identifiers for service flows.
GEM mapping: association between GEM ports and traffic/data packets.
T-CONT: upstream transmission container tied to DBA.
Why A and B and C are correct
The ONT line profile provisions the PON bearer layer: which GEM ports exist, how data packets map to them, and which T-CONTs carry upstream traffic with what bandwidth. The number of ONT Ethernet ports is physical/service-profile data, not bearer transport, so it is excluded and only A, B, and C belong.
Why the others are wrong
D. Number of Ethernet ports: defined in the ont-srvprofile or capability data, not the line profile.
H35-210 exam tip
Line profile holds GEM plus T-CONT; port counts sit in the service profile.