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Huawei H12-821_V1.0

H12-821_V1.0

Exam Code: H12-821_V1.0

Exam Name: HCIP-Datacom-Core Technology V1.0

Updated: Oct 05, 2026

Q & A: 378 Questions and Answers

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Huawei H12-821_V1.0 Exam Syllabus Topics:

SectionObjectives
OSPF- OSPF Fundamentals
  • 1. OSPF Neighbor Relationship
  • 2. LSA and SPF Calculation
  • 3. OSPF Area Design
BGP- BGP Technologies
  • 1. BGP Route Advertisement
  • 2. BGP Path Selection
  • 3. IBGP and EBGP
IS-IS- IS-IS Fundamentals
  • 1. LSP and SPF Mechanism
  • 2. IS-IS Neighbor Establishment
  • 3. Level-1 and Level-2 Routing
Ethernet Switching Technology- Switching Fundamentals
  • 1. VLAN
  • 2. STP/RSTP/MSTP
  • 3. Link Aggregation
IPv6- IPv6 Fundamentals
  • 1. IPv6 Addressing
  • 2. IPv4 to IPv6 Transition
  • 3. IPv6 Routing
Routing Basics- IP Routing Fundamentals
  • 1. Routing Table Principles
  • 2. Route Selection
  • 3. Static Routing
Routing and Traffic Control- Traffic Management
  • 1. Traffic Optimization
  • 2. Policy-based Routing
  • 3. Route Filtering
Multicast- IP Multicast Technologies
  • 1. IGMP
  • 2. Multicast Forwarding
  • 3. PIM
Network Solutions- Enterprise Network Solutions
  • 1. WAN Solution
  • 2. Campus Network
  • 3. Datacom Architecture
Network Security- Security Technologies
  • 1. ACL
  • 2. Attack Prevention
  • 3. AAA
Network Reliability- Reliability Technologies
  • 1. VRRP
  • 2. BFD
  • 3. Redundancy Design
Network Service and Management- O&M Technologies
  • 1. Telemetry
  • 2. SNMP
  • 3. Network Monitoring
WLAN- Wireless Networking
  • 1. WLAN Architecture
  • 2. Wireless Security
  • 3. WLAN Deployment

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:

Question #1
A large enterprise deploys a WLAN in VRRP HSB mode to ensure WLAN reliability . Which of the following statements are false about the VRRP configuration ?

A. The VRIDs must be configured to be the same on the master and backup ACs in the same VRRP group.
B. The virtual IP addresses must be configured to be the same on the master and backup ACs in the same VRRP group.
C. The default priority of a device in a VRRP group is 100. A smaller value indicates a higher priority.
D. The default interval for sending VRRP heartbeat packets is 1s.


Question #2
A switch running a later IGMP version can identify Report messages of an earlier IGMP version, but the switch running an earlier IGMP version cannot identify Report messages of a later IGMP version. To ensure that IGMP runs properly, you are advised to set the IGMP version on the switch to be the same as or later than the IGMP version of member hosts.

A. FALSE
B. TRUE


Question #3
On an OSPF network, different device roles generate different types of LSAs that vary in function. Which of the following types of LSAs cannot be generated by a pure ASBR?

A. Type4LSA
B. Type3LSA
C. Type2LSA
D. Type7LSA


Question #4
On an OSPF network, an algorithm is used to prevent loops within an area, but loops may occur between areas. Therefore, OSPF defines a loop prevention mechanism for inter-area routes. Which of the following statements are true about the loop prevention mechanism?

A. An ABR cannot inject Type 3 LSAs that describe routes to a network segment in an area back to the same area.
B. All non-backbone areas must be directly connected to area 0.
C. Inter-area routes cannot be directly transmitted between non-backbone areas.
D. Inter-area routes need to be forwarded through area 0.


Question #5
On a BGP network, locally originated routes may be generated in multiple ways. Which of the following locally originated routes has the highest priority?

A. Routes obtained through automatic summarization
B. Routes imported using the import-route command
C. Routes obtained through manual summarization
D. Routes imported using the network command


Solutions:

Question #1
Correct Answer: C,D
Question #2
Correct Answer: B
Question #3
Correct Answer: A,B,C
Question #4
Correct Answer: A,B,C,D
Question #5
Correct Answer: C

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