H12-821_V1.0 Vce Exam, Latest H12-821_V1.0 Learning Materials

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Huawei H12-821_V1.0 Exam Syllabus Topics:

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

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q296-Q301):

NEW QUESTION # 296
Which of the following statements regarding different LSA types is false?

A. LS Ack packets contain complete LSA information.
B. DD packets contain only LSA summary information, including LS Type, LS ID, Advertising Router, and LS Sequence Number.
C. LS Request packets contain only LS Type, LS ID, and Advertising Router.
D. LS Update packets contain complete LSA information.

Answer: D

NEW QUESTION # 297
Which of the following routing protocols support the default route through command configuration?

A. ICMP
B. BGP
C. OSPF
D. IS-IS

Answer: B,C,D

Explanation:
BGP, IS-IS, and OSPF support the configuration of default routes through specific command configurations. For example, BGP uses the default-originate command, IS-IS uses a default-route- advertise method, and OSPF can advertise default routes using default-information originate. ICMP, however, is not a routing protocol and does not support this functionality .

NEW QUESTION # 298
After a BGP device establishes a peer relationship, it advertises routes. Which of the following statements are true about BGP route advertisement?

A. Routes obtained from an IBGP peer are not sent to other IBGP peers.
B. When routes are updated, the BGP device sends all BGP routes.
C. When there are multiple valid routes to the same destination, a BGP device advertises only the optimal route to its peers.
D. Routes obtained from EBGP peers are advertised to all peers.

Answer: A,C,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:
* A. TRUE # EBGP-learned routes can be advertised to both IBGP and EBGP peers.
* B. FALSE # BGP uses incremental updates, meaning it only advertises changed routes, not all routes.
* C. TRUE # BGP advertises only the best path to prevent unnecessary routing information.
* D. TRUE # IBGP split-horizon rule: Routes learned from IBGP peers are not re-advertised to other IBGP peers (to prevent loops).
# Reference: Huawei HCIA-Datacom Study Guide, BGP Route Advertisement and Split-Horizon Rule.

NEW QUESTION # 299
See the following figure. All routers on the network run IS-IS and are in area 49.0001.
By referring to the LSDB of R1, the Level-2 DIS is. (Enter the device name, for example, R1.)

Answer:

Explanation:
R3
Explanation:
Understanding the LSDB and Level-2 DIS Election in IS-IS:
In IS-IS, theDesignated Intermediate System (DIS)is elected for both Level-1 and Level-2 on broadcast networks to manage the link-state database (LSDB) and reduce the number of LSAs exchanged.
The election of the DIS is based on thehighest priority.
If the priority is the same, the router with thehighest System IDbecomes the DIS.
HCIP-Datacom-Core Technology Training Material (IS-IS DIS Election).
Analyzing the LSDB:
From the LSDB ofR1, the Level-2 link-state database includes the following entries:
LSPID 0100.0000.3003.00-00: This is R3, and it is present in the Level-2 LSDB with the sequence number and checksum details.
Other routers (R1, R2, R4) are present but do not have the characteristics of the Level-2 DIS in this topology.
Based on the System IDs,R3 (0100.0000.3003)has the highest System ID, making it theLevel-2 DIS.
Conclusion:
The Level-2 DIS on the network isR3, based on the election rules and the LSDB information shown in the figure.

NEW QUESTION # 300
A switch runs the RSTP protocol, and its related configuration information is shown in the figure. According to the command configuration, please point out that for Instance 1, the role of the switch is:

A. Can't judge
B. Non-root switch
C. Root switch
D. Switch

Answer: C

NEW QUESTION # 301
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