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Huawei H12-821_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: BGP Fundamentals	17%	- BGP characteristics and working principles - BGP configuration and policy application - BGP route attributes and selection
Topic 2: Network Service and Management	5%	- Network management and monitoring - DHCP and DNS services
Topic 3: OSPF Fundamentals	16%	- OSPF configuration and optimization - OSPF principles and operation mechanisms - OSPF special applications and troubleshooting
Topic 4: Network Security	8%	- AAA authentication - ACL and packet filtering - Attack defense and security policy
Topic 5: Multicast Technologies	9%	- Multicast basic concepts - PIM protocol - IGMP protocol
Topic 6: Routing and Traffic Control	10%	- Route import and redistribution - Policy-based routing - Routing policy and filtering
Topic 7: WLAN Basics	2%	- WLAN deployment and optimization - WLAN technology principles
Topic 8: Ethernet Switching Technologies	7%	- Link aggregation and stack technology - Spanning Tree Protocol - VLAN principles and configuration
Topic 9: IPv6 Technologies	3%	- IPv6 address structure and configuration - IPv6 routing protocols
Topic 10: Routing Basics	3%	- Routing table composition and selection rules - Routing concepts and classification
Topic 11: IS-IS Fundamentals	8%	- IS-IS protocol principles - IS-IS configuration and deployment
Topic 12: Network Solutions and Design	5%	- Enterprise network design principles - Typical network architecture and solution
Topic 13: Network Reliability	7%	- Device redundancy and link backup - BFD technology - VRRP protocol

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q267-Q272):

NEW QUESTION # 267
A forwarding information database (FIB) can directly guide packet forwarding on a router.

A. FALSE
B. TRUE

Answer: B

Explanation:
The Forwarding Information Base (FIB) is derived from the router's routing table and contains the exact forwarding entries used to route packets. It directly guides packet forwarding decisions by matching incoming packets with the correct output interface or next-hop address .

NEW QUESTION # 268
In special scenarios, when advertising routes to an IBGP peer, a BGP device needs to set the next hop to its IP address to prevent blackhole routes.
Which of the following commands can be run in this case?

A. peer private-nexthop
B. peer next-hop-local
C. peer mpls-local-ifnet
D. peer next-hop-invariable

Answer: B

Explanation:
Blackhole Route Issue in BGP:
In IBGP, the next hop of a route learned from an EBGP peer is not changed by default. If an IBGP peer cannot reach the next hop, blackhole routes may occur.
To prevent this, the peer next-hop-local command is used to set the next hop to the local router's IP address.
Other Commands:
peer mpls-local-ifnet: Used in MPLS networks to set the next hop as the local interface address.
peer private-nexthop: Allows advertising private IP addresses as the next hop.
peer next-hop-invariable: Ensures the next hop is not modified during route advertisement, which is the opposite of what is required here.

NEW QUESTION # 269
Which of the following descriptions about N+1 backup is correct?

A. The models and software versions of the active and standby ACs must be exactly the same.
B. The product models of the active and backup ACs can be different, but it is recommended to ensure that the software versions of the ACs are consistent.
C. N+1 backup is a cold backup and backs up AP information and STA information.
D. One backup AC can provide backup services for multiple main ACs, reducing the cost of purchasing equipment, and its reliability is higher than VRRP dual- machine hot backup.

Answer: B

NEW QUESTION # 270
GRE is a VPN encapsulation technology that is widely used to transmit packets across heterogeneous networks.
Which of the following statements is false about GRE?

A. GRE can work with other VPN protocols to better ensure data security.
B. GRE supports multicast transmission.
C. GRE is a Layer 3 VPN encapsulation technology.
D. GRE supports encryption and authentication.

Answer: D

Explanation:
GRE Characteristics
GRE does not inherently support encryption or authentication. It is a tunneling protocol for encapsulating packets, and data security features must be implemented using other protocols such as IPsec.

NEW QUESTION # 271
Which of the following descriptions of MAC address spoofing attacks is incorrect?

A. MAC address spoofing attacks mainly utilize the switch MAC address learning mechanism.
B. A MAC address spoofing attack will cause the data that the switch wants to send to the correct destination to be sent to the attacker.
C. MAC address spoofing attacks will cause the switch to learn the wrong mapping relationship between MAC addresses and IP addresses.
D. An attacker can implement a MAC address spoofing attack by sending a data frame with a forged source MAC address to the switch.

Answer: C

NEW QUESTION # 272
......

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