Huawei H12-831_V1.0-ENU Online Practice Test (Huawei-H12-831_V1.0-ENU-Practice-Test)

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The HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification exam is intended for IT professionals who are responsible for designing, configuring, and troubleshooting complex datacom networks. H12-831_V1.0-ENU Exam covers a range of topics, including advanced routing and switching technologies, network security, and network optimization. Individuals who pass the exam are recognized as experts in their field and are well-equipped to tackle the challenges of modern datacom networks.

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Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions (Q11-Q16):

NEW QUESTION # 11
What is the default aging time of the MAC address table of Huawei switches in seconds?

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

Answer: A

NEW QUESTION # 12
Which of the following is not included in OSPF Hello packets?
Options:

A. Process ID
B. Router ID
C. Area ID
D. Network Mask

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:
* OSPF Hello packets are used to establish and maintain neighbor relationships between routers.
* Hello packets contain:# Router ID - Unique identifier for the OSPF router.# Area ID - Defines the OSPF area to which the router belongs.# Network Mask - Helps ensure routers are on the same subnet.
* Process ID is NOT included because the OSPF Process ID is a local parameter used only within the router itself and is not exchanged between routers.
# Reference: HCIP-Datacom Advanced Routing & Switching Technology - OSPF Packet Types

NEW QUESTION # 13
On the network shown in the figure, SW3 is the user gateway and DHCP relay agent.
The administrator plans to configure DHCP snooping on SW3 to prevent DHCP attacks.

Which of the following commands does not need to be configured on SW3?

A. [SW3-GigabitEthernet0/0/2] dhcp snooping enable
B. [SW3-GigabitEthernet0/0/3] dhcp snooping trusted
C. [SW3] dhcp snooping enable ipv4
D. [SW3-GigabitEthernet0/0/1] dhcp snooping enable

Answer: C

Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding DHCP Snooping and its Configuration
1. What is DHCP Snooping?
* DHCP Snooping is a security feature that helps prevent rogue DHCP servers from providing false IP configurations to clients.
* It classifies switch ports as either:
* Trusted (allowing DHCP replies from legitimate DHCP servers or relay agents).
* Untrusted (blocking unauthorized DHCP responses from clients or attackers).
Analysis of the Commands
# A. [SW3-GigabitEthernet0/0/2] dhcp snooping enable (Required)
* Interface GigabitEthernet0/0/2 is connected to a DHCP client (PC2).
* DHCP snooping must be enabled on this interface to filter DHCP messages and prevent rogue DHCP servers.
* Since PC2 is a client, this port should remain UNTRUSTED.
# This command is required.
# B. [SW3] dhcp snooping enable ipv4 (Not Required - Correct Answer)
* The correct command to enable DHCP Snooping globally on Huawei switches is:
* dhcp snooping enable
* There is no need to explicitly specify ipv4 since DHCP is inherently an IPv4-based protocol.
# This command is unnecessary, making it the correct answer.
# C. [SW3-GigabitEthernet0/0/3] dhcp snooping trusted (Required)
* GigabitEthernet0/0/3 is connected to the DHCP relay agent, which forwards DHCP messages between clients and the DHCP server.
* This port must be configured as "trusted" to allow DHCP responses from the relay or the DHCP server.
# This command is required.
# D. [SW3-GigabitEthernet0/0/1] dhcp snooping enable (Required)
* GigabitEthernet0/0/1 is connected to a DHCP client (PC1).
* Similar to Port 0/0/2, DHCP snooping must be enabled on this interface to filter DHCP messages and prevent rogue DHCP responses.
# This command is required.
Final Conclusion:
# A. Required (PC2's port needs DHCP snooping enabled).# B. Not required (Incorrect command syntax, ipv4 is unnecessary).# C. Required (Port connected to DHCP relay must be trusted).# D.
Required (PC1's port needs DHCP snooping enabled).
Thus, the correct answer is: B. [SW3] dhcp snooping enable ipv4.

NEW QUESTION # 14
As shown in the figure, the network has a loop because STP is not enabled. Which of the following phenomena may be bowed?

A. equipmentCPUOccupancy is too high
B. MA, CAddress table flapping
C. The device will generate a loop alarm
D. Hostreceive a large number of broadcasts

Answer: A,B,C,D

NEW QUESTION # 15
Regarding sham link, which of the following description is wrong?

A. In order to forward the VPN flow through the MPLS backbone network, the routing cost of the sham link should be less than the OSPF routing cost of the backdoor road
B. The endpoint address of the sham link is advertised as a VPhv4 address by BGP. Routes that have passed sam1ik can also be imported into BGP in the form of VPNv4 routes
C. The sham link can be configured in any area and needs to be configured manually, and there must be a route to the sham link destination address (the sham link endpoint address of the peer PE) in the local VPN instance
D. The sham link is a link between two VPN instances. Each VPN instance must have an endpoint address of the sham link, which must be a Loopback with a 32-bit mask in the VPN address space on the PE router. interface address

Answer: B

NEW QUESTION # 16
......

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