Quiz 2026 Huawei H12-821_V1.0: HCIP-Datacom-Core Technology V1.0 High Hit-Rate Reliable Exam Cost

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Huawei H12-821_V1.0 Exam Syllabus Topics:

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

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q123-Q128):

NEW QUESTION # 123
OSPF has multiple types of routes with varying priorities. Which of the following types of routes has the lowest priority when they have the same prefix?

Answer: D

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
OSPF Route Preference Hierarchy:
OSPF uses the following preference order for route types when the prefix is the same:
Intra-area routes (D): Routes within the same OSPF area have the highest priority.
Inter-area routes (B): Routes between different OSPF areas are preferred after intra-area routes.
Type 1 external routes (A): External routes redistributed into OSPF, considering the internal OSPF cost to the ASBR.
Type 2 external routes (C): External routes redistributed into OSPF, ignoring the internal OSPF cost to the ASBR.
Lowest Priority:
Type 2 external routes (C) are given the lowest priority because they represent external information that does not consider internal OSPF costs.
References:
HCIA-Datacom Study Guide, Chapter: OSPF Route Preference
Huawei OSPF Routing Table Selection Rules


NEW QUESTION # 124
Using the IP prerequisite list shown in the figure for route matching, which of the following routes can be matched?
ip ip-prefix List1 index 10 permit 192.168.1.0 24 greater-equal 24 less-equal 27

Answer: D


NEW QUESTION # 125
By default, OSPF external routes belong to which of the following types?

Answer: A


NEW QUESTION # 126
Four routers run IS-IS and have established adjacencies. The area IDs and router levels are marked in the following figure. R1 and R2 are connected through a PPP link, and R3 is the DIS. Which of the following statements are true?

Answer: A,D

Explanation:
R3, as the DIS in the Level-2 domain, periodically sends Complete Sequence Number Protocol Data Units (CSNPs) to ensure LSDB synchronization among Level-2 routers.
R1 and R2 are in a Level-1 domain, and IS-IS requires the receiving router (R2) to acknowledge an LSP from R1 by sending a Partial Sequence Number Protocol Data Unit (PSNP).
IS-IS LSPs in a broadcast network are sent using multicast, not unicast, making option C incorrect.
For Level-2 LSPs, acknowledgments are not provided using PSNP by R3; CSNPs are sufficient for synchronization .


NEW QUESTION # 127
On an OSPF network, if two directly connected routers with the same router ID run in the same area, the master/slave relationship cannot be determined for DD packets.

Answer: A


NEW QUESTION # 128
......

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