Free Practice Questions for Huawei HCIP-Datacom

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Key Facts: Huawei HCIP-Datacom Exam

Questions per Exam

Huawei e.huawei.com

90 min

Time per Exam

Pearson VUE

600/1000

Passing Score

Huawei

US$200

Fee per Exam

Pearson VUE

2 exams

H12-821 + H12-831

Huawei track

3 years

Cert Valid

Huawei

HCIP-Datacom requires passing both H12-821 (Core Technology) and H12-831 (Advanced Routing & Switching). Each exam has 60 questions, 90 minutes, US$200 fee, and a 600/1000 passing score. The certification is valid for 3 years and is delivered through Pearson VUE testing centers worldwide.

Sample Huawei HCIP-Datacom Practice Questions

Try these sample questions to review concepts for the Huawei HCIP-Datacom exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1On a Huawei VRP router running OSPFv2, which LSA type is generated by an ASBR to advertise external routes redistributed into a normal OSPF area?

A.Type 1 Router LSA

B.Type 3 Network Summary LSA

C.Type 5 AS-External LSA

D.Type 7 NSSA External LSA

Explanation: Type 5 AS-External LSAs are originated by ASBRs and flooded throughout the OSPF AS (except into stub, totally stubby, and NSSA areas) to advertise routes redistributed from outside OSPF. The forwarding address and external metric are carried in the LSA payload.

2An OSPF area is configured as totally stubby on a Huawei AR router. Which statement about route propagation into that area is correct?

A.Only Type 1 and Type 2 LSAs are allowed

B.Type 3, Type 4, and Type 5 LSAs are blocked, but a default Type 3 LSA is injected by the ABR

C.Type 5 LSAs are allowed, but Type 3 and Type 4 LSAs are blocked

D.Type 7 LSAs are translated into Type 5 LSAs by the ABR

Explanation: A totally stubby area blocks Type 3, Type 4, and Type 5 LSAs. The ABR injects a default Type 3 summary LSA (0.0.0.0/0) so internal routers can still reach destinations outside the area. The command on Huawei VRP is `stub no-summary` under the area view.

3Two Huawei routers are configured for OSPF MD5 authentication on a point-to-point link, but adjacency is stuck in ExStart. What is the most likely cause?

A.Router IDs are duplicated

B.MTU mismatch between the two interfaces

C.Hello and Dead intervals do not match

D.Area IDs are different

Explanation: OSPF on Huawei VRP enforces MTU matching during DBD exchange by default. If MTUs differ, neighbors loop between ExStart and Exchange because each side rejects the peer's DBD. The fix is either to align MTUs or to configure `ospf mtu-enable` consistently or use `ignore`.

4On a Huawei device running OSPFv3 for IPv6, which transport mechanism is used between OSPFv3 neighbors on a broadcast network?

A.TCP port 179

B.UDP port 521

C.IPv6 protocol number 89 with link-local source addresses

D.IPv4 protocol number 89 with global unicast addresses

Explanation: OSPFv3 still uses IP protocol 89, but it runs over IPv6 and sources packets from the interface's link-local address (FE80::/10). Authentication has been moved out of OSPF and is handled by IPsec AH/ESP in OSPFv3.

5A network engineer on a Huawei VRP router uses `ospf 1` followed by `area 0.0.0.1` and configures `abr-summary 10.1.0.0 255.255.0.0`. What does this command do?

A.Filters all Type 3 LSAs entering area 1

B.Summarizes intra-area routes from area 1 into a single Type 3 LSA when this router is an ABR for area 1

C.Creates a static route on the ABR for 10.1.0.0/16

D.Redistributes 10.1.0.0/16 as a Type 5 external LSA

Explanation: The `abr-summary` command (also written `summary-route` in some VRP versions) tells an ABR to aggregate the listed area's intra-area routes into one Type 3 LSA. This shrinks the LSDB in other areas and reduces SPF cost.

6A virtual link is configured in OSPF between two ABRs to repair a partitioned backbone. Through which area must the virtual link transit?

A.Area 0 (the backbone)

B.Any non-backbone, non-stub transit area

C.An NSSA area only

D.Any area, including stub areas

Explanation: A virtual link must traverse a non-backbone, non-stub transit area because LSAs need to be flooded across it. Stub-family areas (stub, totally stubby, NSSA) cannot carry the Type 1 LSAs that the virtual-link uses to form the adjacency.

7On a Huawei VRP router, how can an administrator filter inbound Type 3 LSAs from area 1 to allow only 10.0.0.0/8?

A.`filter-policy import` on the OSPF global view

B.`filter ip-prefix permit-only import` under the area 1 view of the ABR

C.Apply a route-map to the redistribute command

D.Use `prefix-list` only at the ASBR view

Explanation: Huawei OSPF inter-area filtering is configured per-area on the ABR using `filter ip-prefix <name> import` or `export`. This prunes Type 3 LSAs at the ABR boundary without affecting the LSDB inside the source area.

8An IS-IS router on a Huawei device has its NET configured as 49.0001.0010.0100.1001.00. Which value is the System ID?

A.49.0001

B.0010.0100.1001

C.0001.0010.0100

D.00 (the NSEL)

Explanation: An IS-IS NET is structured as Area ID + System ID + NSEL. The System ID is always the 6 bytes (12 hex characters) immediately before the trailing NSEL byte (0x00). Here that is 0010.0100.1001.

9Which IS-IS router type maintains both a Level 1 and Level 2 LSDB and can act as a boundary between an L1 area and the L2 backbone on Huawei VRP?

A.Level 1 only router

B.Level 2 only router

C.Level 1-2 router

D.Pseudonode

Explanation: An IS-IS Level 1-2 router holds both L1 and L2 LSDBs simultaneously. It floods L1 LSPs only inside its own area and L2 LSPs throughout the backbone, and can set the ATT bit in its L1 LSP so L1-only routers can reach inter-area destinations via a default route.

10An IS-IS LAN has formed and the DIS has been elected. Which PDUs does the DIS use to ensure LSDB synchronization on the segment?

A.Hellos only

B.PSNP every 10 seconds

C.CSNP periodically (default 10 seconds) plus PSNPs to request missing LSPs

D.TLV 22 IS-IS extended IS reachability

Explanation: On a broadcast segment the DIS sends a complete sequence number PDU (CSNP) at a regular interval (default 10 seconds in Huawei VRP) to summarize its LSDB. Other routers compare the CSNP with their own LSDB and request missing LSPs using PSNPs.

About the Huawei HCIP-Datacom Exam

Huawei Certified ICT Professional — Datacom (HCIP-Datacom) validates intermediate enterprise networking skills on Huawei VRP, including OSPF, IS-IS, BGP, MPLS L3VPN, VXLAN with BGP EVPN, multicast, advanced QoS, MSTP, VRRP, network security, and SDN automation with iMaster NCE. Earning HCIP-Datacom requires passing both H12-821 (Core Technology) and H12-831 (Advanced Routing & Switching).

Exam sponsor: Huawei / Pearson VUE. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Two required exams: H12-821 Core Technology and H12-831 Advanced Routing & Switching. Each delivers 60 questions in 90 minutes

Time Limit

90 minutes per exam (180 minutes total across both)

Passing Score

600/1000 per exam

Exam / Certification Fees

US$200 per exam (US$400 total)

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

20%

OSPF Advanced & IS-IS

Multi-area OSPF, LSA types 1-7, NSSA/totally stubby, virtual links, summarization, OSPFv3, IS-IS L1/L2 routers, NET, LSP, CSNP/PSNP, wide metrics

18%

BGP

eBGP/iBGP, peer states, attributes (local-pref, MED, AS_PATH, community), route reflectors, confederations, regular expressions, BGP4+ for IPv6, route policies

15%

MPLS & L3VPN

LDP, label distribution, PHP, MPLS L3VPN with VPN instances, RD/RT/VRF, MP-BGP VPNv4, TTL propagation modes

15%

VXLAN & BGP EVPN

VTEP, VNI, BGP EVPN control plane (Type 2/3/5 routes), ARP suppression, head-end replication, anycast gateway, distributed gateway

10%

Multicast & QoS

PIM-SM/SSM, IGMP v1/v2/v3, RP, BSR, MSDP, MQC modular QoS, DiffServ (EF/AF/BE), queueing (PQ/CBWFQ), WRED, shaping vs policing

10%

MSTP, VRRP & Switching

MSTP regions, instances, BPDU/Root/Loop protection, VRRP master/backup, priority, track interface, VRRP6 for IPv6

Network Security

DHCP snooping, IP source guard, dynamic ARP inspection, port security, MAC limit, AAA RADIUS/HWTACACS+, 802.1X NAC, MAB

SDN, Automation & CloudCampus

iMaster NCE controller, NETCONF/YANG, OPS Python, gRPC telemetry, CloudCampus solution, AirEngine WLAN, eNSP simulator

Preparing for the Huawei HCIP-Datacom Exam

What You Need to Know

Passing score: 600/1000 per exam
Assessment: Two required exams: H12-821 Core Technology and H12-831 Advanced Routing & Switching. Each delivers 60 questions in 90 minutes
Time limit: 90 minutes per exam (180 minutes total across both)
Exam / certification fees: US$200 per exam (US$400 total) Official sources

Using Our Practice Resources

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Huawei HCIP-Datacom: Suggested Study Strategy

1Treat OSPF and BGP as the core: about 38% of the combined exam content centers on these protocols, including LSA types, area types, attributes, route reflectors, and route policies.

2Build at least one MPLS L3VPN lab end-to-end on eNSP — VPN instances, RD/RT, MP-BGP VPNv4 — because configuration order and command syntax show up directly on H12-831.

3Memorize Huawei VRP command syntax (`display`, `peer`, `area`, `vpn-target`, `traffic-classifier`) — exam questions test exact VRP commands, not generic networking terms.

4Drill VXLAN BGP EVPN route types (Type 2 MAC/IP, Type 3 inclusive multicast, Type 5 IP prefix) and understand symmetric IRB versus centralized gateway designs.

5Practice tuning VRRP and BFD timers for sub-second failover, and know how to track interfaces or BFD sessions for priority demotion.

6Cover security carefully: DHCP snooping, IP source guard, dynamic ARP inspection, port security, 802.1X with MAB, and AAA with RADIUS/HWTACACS+ frequently appear.

7Skim iMaster NCE, NETCONF/YANG, OPS Python, and CloudCampus topics — they account for fewer questions but are scenario-heavy and easy points if you understand the architecture.

Frequently Asked Questions

How many exams must I pass to earn HCIP-Datacom?

HCIP-Datacom requires passing two exams: H12-821 (Core Technology) and H12-831 (Advanced Routing & Switching). Each exam costs US$200, lasts 90 minutes, and contains 60 questions. You must score at least 600/1000 on each to pass.

What is the passing score and exam format?

The passing score is 600 out of 1000 on each of the two exams. Question types include multiple choice, multiple selection, true/false, drag-and-drop, and short answer. Both exams are delivered through Pearson VUE testing centers in English and other languages.

How long is HCIP-Datacom valid?

HCIP-Datacom is valid for 3 years from the certification date. To recertify, you must pass the current versions of H12-821 and H12-831 (or pass the higher-level HCIE-Datacom). Huawei periodically refreshes the exam blueprints, so check the official Huawei Talent portal for the latest objectives before testing.

What is the difference between H12-821 and H12-831?

H12-821 (HCIP-Datacom-Core) covers OSPF, IS-IS, BGP, MPLS basics, multicast, security fundamentals, QoS, and basic SDN. H12-831 (HCIP-Datacom-Advanced Routing & Switching) goes deeper into MPLS L3VPN, VXLAN BGP EVPN, advanced BGP route policies, advanced QoS, and CloudCampus design. You can take them in either order.

Do I need HCIA-Datacom before taking HCIP-Datacom?

HCIA-Datacom is recommended but not strictly required. The HCIP-Datacom exams assume working knowledge of basic VRP CLI, OSPF single-area, RIP, VLANs, ACLs, NAT, STP, and DHCP — all of which are covered by HCIA. Most candidates complete HCIA first or have equivalent on-the-job experience.

Which lab tool should I use to practice HCIP-Datacom?

Huawei eNSP (Enterprise Network Simulation Platform) is the official simulator and runs real VRP. It supports AR routers, S-series switches, AC controllers, and APs. eNSP is recommended for practicing OSPF, BGP, MPLS L3VPN, VXLAN with BGP EVPN, MSTP, VRRP, IPsec/GRE, and SDN scenarios used on the actual exam.

Free Practice Questions for Huawei HCIP-Datacom

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