2026 Latest H12-821_V1.0 Exam Vce | H12-821_V1.0 100% Free Test Braindumps

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Huawei H12-821_V1.0 Exam Syllabus Topics:

Section	Objectives
Topic 1: Ethernet Switching Technology	- Switching Fundamentals 1. VLAN 2. STP/RSTP/MSTP 3. Link Aggregation
Topic 2: BGP	- BGP Technologies 1. IBGP and EBGP 2. BGP Path Selection 3. BGP Route Advertisement
Topic 3: IPv6	- IPv6 Fundamentals 1. IPv6 Addressing 2. IPv4 to IPv6 Transition 3. IPv6 Routing
Topic 4: Routing and Traffic Control	- Traffic Management 1. Route Filtering 2. Traffic Optimization 3. Policy-based Routing
Topic 5: WLAN	- Wireless Networking 1. WLAN Deployment 2. WLAN Architecture 3. Wireless Security
Topic 6: Network Reliability	- Reliability Technologies 1. Redundancy Design 2. VRRP 3. BFD
Topic 7: Network Security	- Security Technologies 1. AAA 2. ACL 3. Attack Prevention
Topic 8: Network Service and Management	- O&M Technologies 1. SNMP 2. Network Monitoring 3. Telemetry
Topic 9: Network Solutions	- Enterprise Network Solutions 1. Campus Network 2. WAN Solution 3. Datacom Architecture
Topic 10: OSPF	- OSPF Fundamentals 1. OSPF Area Design 2. LSA and SPF Calculation 3. OSPF Neighbor Relationship
Topic 11: IS-IS	- IS-IS Fundamentals 1. IS-IS Neighbor Establishment 2. LSP and SPF Mechanism 3. Level-1 and Level-2 Routing
Topic 12: Routing Basics	- IP Routing Fundamentals 1. Static Routing 2. Routing Table Principles 3. Route Selection
Topic 13: Multicast	- IP Multicast Technologies 1. IGMP 2. PIM 3. Multicast Forwarding

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q23-Q28):

NEW QUESTION # 23
What is the aging time of the router port defined in IGMP Snooping?

A. 0
B. 1
C. 2
D. 3

Answer: B

NEW QUESTION # 24
An enterprise uses OSPF to implement network communication. To ensure data validity and security, all authentication modes supported by OSPF are enabled on routers. In this case, interface authentication is preferentially used by the routers.

A. TRUE
B. FALSE

Answer: A

Explanation:
OSPF Authentication Overview
OSPF supports three authentication modes:
Null Authentication: No authentication (default).
Plaintext Authentication: Uses clear-text passwords.
MD5 Authentication: Secure cryptographic authentication.
Interface-Level Priority
When both interface-level and area-level authentication are configured, OSPF prioritizesinterface-level authentication. This ensures that interface-specific security overrides area-wide configurations for greater granularity and security.
HCIP-Datacom-Core Reference
OSPF authentication hierarchy and configurations are detailed in the OSPF security configuration chapter.

NEW QUESTION # 25
Which of the following descriptions about BGP are correct? (Multiple choice)

A. BGP uses Keepalive messages to keep the TCP connection valid. The default Keepalive sending period is 60 seconds.
B. BGP uses TCP port 179 for communication.
C. When BGP establishes a neighbor relationship, the necessary parameters are negotiated through Notification messages.
D. When BGP establishes a neighbor relationship, it must first complete the TCP three-way handshake.
Otherwise, the neighbor relationship cannot be established.

Answer: A,B,D

NEW QUESTION # 26
The origin of SDN is the separation of transfer and control. The separation of transfer and control is a method to realize SDN but not the essence.

A. TRUE
B. FALSE

Answer: A

NEW QUESTION # 27
Which of the following are the advantages of electing DR/BDR in the MA network? (Multiple choice)

A. OSPF neighbor can be established as long as TCP is reachable
B. No multicast packets are needed to maintain neighbor status
C. Reduce duplicate traffic
D. Facilitate synchronization of link status

Answer: C,D

NEW QUESTION # 28
......

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