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Huawei H12-821_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Network Service and Management	2%	- Network management basics
Topic 2: Network Solution	2%	- Integrated network design scenarios
Topic 3: Routing Fundamentals	3%	- Network basics and routing principles
Topic 4: BGP	17%	- BGP policy and attributes - BGP path selection
Topic 5: Routing and Traffic Control	10%	- Policy-based routing - Traffic engineering basics
Topic 6: IS-IS	8%	- IS-IS protocol fundamentals
Topic 7: OSPF	16%	- OSPF areas and LSDB - OSPF core concepts
Topic 8: Multicast	9%	- IGMP and PIM concepts
Topic 9: IPv6	3%	- IPv6 addressing and routing
Topic 10: Network Reliability	8%	- Redundancy and failover mechanisms
Topic 11: Network Security	9%	- ACL and basic security mechanisms
Topic 12: Switching Technologies	7%	- VLAN and STP fundamentals
Topic 13: Large-scale WLAN Architecture	6%	- Enterprise WLAN deployment basics

>> Key H12-821_V1.0 Concepts <<

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q134-Q139):

NEW QUESTION # 134
Which of the following values is the Reserved/Circuit Type field in the IIH packets sent by a Level-1-2 router on an IS-IS network?

A. 0
B. 00
C. 1
D. 01

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:
* Intermediate System to Intermediate System (IS-IS) routers send IS-to-IS Hello (IIH) packets to establish neighbor relationships.
* The Reserved/Circuit Type field in IIH packets indicates which level of IS-IS adjacency the router is trying to establish:
* 00 # Level-0 (Not used in IS-IS).
* 01 # Level-1 router.
* 10 # Level-2 router.
* 11 # Level-1-2 router (Both levels supported).
* Since the question asks for the field value in an L1-L2 router's IIH packets, the correct answer is 11 (B).
# Reference: Huawei HCIA-Datacom Study Guide, IS-IS Neighbor Discovery and IIH Packet Format.

NEW QUESTION # 135
As shown in the figure is part of the configuration of the router RTA.

Regarding the description of this part of the configuration, which of the following items are correct? (Multiple choice)

A. The IP address of this interface cannot be used as the Router ID of OSPF.
B. The directly connected route of interface GigabitEthernet 1/0/0 can be published to the OSPF database.
C. The interface cannot send any OSPF packets and will ignore the received OSPF packets.
D. The OSPF process number of this router is 100

Answer: B,C,D

NEW QUESTION # 136
After the administrator of an enterprise deploys a DHCP server, employees complain that their clients cannot obtain IP addresses from the DHCP server. Which of the following may cause this problem?

A. The DHCP function is disabled by default, and the administrator forgets to enable the DHCP function.
B. DHCP clients and the DHCP server are on different network segments, and no DHCP relay agent is configured on the network.
C. Multiple DHCP servers are configured.
D. STP is enabled on the DHCP server.

Answer: A,B

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* DHCP Configuration Issues:
* Option C: The DHCP function is disabled by default on Huawei devices. If the administrator forgets to enable it, clients cannot receive IP addresses.
* Option D: DHCP uses broadcast messages, which do not traverse routers. If the clients and DHCP server are on different subnets, a DHCP relay agent must be configured.
* Other Options:
* Option A: Multiple DHCP servers can coexist as long as their IP address pools do not overlap.
This is unlikely to cause the problem.
* Option B: STP does not affect DHCP operations unless it delays port activation, which is uncommon in this scenario.
References:
HCIA-Datacom Study Guide, Chapter: DHCP Configuration and Troubleshooting Huawei DHCP Relay Agent Configuration

NEW QUESTION # 137
A medium-sized park network manages the network through the SNMP protocol.
Which version of SNMP does the park manage?

A. SNMPv1
B. All versions are available
C. SNMPv2C
D. SNMPv3

Answer: D

NEW QUESTION # 138
Which of the following statements about Layer 2 roaming and Layer 3 roaming is correct? (Multiple choice)

A. The VLAN on the AP service set associated with the STA must be the same before and after layer-3 roaming
B. Layer 2 roaming means that the client roams in the same subnet
C. If the VLAN IDs associated with the front and back are the same when the STA roams, it must belong to Layer 2 roaming
D. Layer 3 roaming means that the client roams between different subnets

Answer: B,D

NEW QUESTION # 139
......

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