Huawei H12-811_V2.0 Helpful Product Features of PDF

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Huawei H12-811_V2.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Data Communication Network Basics: Covers foundational concepts of data communication networks including network types, reference models (OSI
  • TCP-IP), and basic device roles.
Topic 2
  • Network Security and Services: Covers essential network security mechanisms including ACLs, AAA, NAT, and basic firewall concepts to protect network infrastructure.
Topic 3
  • Ethernet Technology Basics: Covers Ethernet standards, switching principles, VLANs, and Layer 2 protocols used in enterprise network environments.
Topic 4
  • Network O&M and Troubleshooting: Covers network operation and maintenance practices, common diagnostic tools, and methodologies for identifying and resolving network faults.
Topic 5
  • Typical Campus Networking Solution: Covers end-to-end campus network design scenarios, integrating switching, routing, security, and wireless technologies into a unified solution.

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Huawei HCIA-Datacom V2.0 Sample Questions (Q14-Q19):

NEW QUESTION # 14
On the network shown in the figure, PC1 and PC4 belong to VLAN 10, and PC2 and PC3 belong to VLAN
20. The administrator has configured the vlan batch 10 20 command on both switches.
To enable Layer 2 communication between PCs in the same VLAN and isolate services between VLANs, match the following interface configurations with interfaces. (Tokens can be reused.)

Answer:

Explanation:

Explanation:
A, B, D, B, A, D
Interface-based VLAN assignment associates an incoming untagged Ethernet frame with the VLAN configured on its access interface.
On SW1, GE1/0/1 connects PC1 and therefore belongs to VLAN 10. GE1/0/2 connects PC2 and belongs to VLAN 20.
On SW2, GE1/0/1 connects PC3 and belongs to VLAN 20, while GE1/0/2 connects PC4 and belongs to VLAN 10.
The inter-switch interfaces GE1/0/3 must carry traffic belonging to both VLANs while preserving VLAN identification. Configuring these interfaces as hybrid ports with tagged forwarding for VLANs 10 and 20 achieves this requirement.
Using untagged forwarding for both VLANs on the inter-switch connection would remove their VLAN tags and prevent the receiving switch from reliably distinguishing the two VLANs.


NEW QUESTION # 15
The figure shows the simplified topology of an enterprise campus network. On this network, the aging time of dynamic MAC address entries on switches is 300 seconds.
The administrator connects PC1 to GE1/0/1 of SW1 and successfully pings the IP address of PC2 from PC1.
Then, the administrator disconnects the Ethernet cable of PC1
from GE1/0/1 of SW1, immediately connects the cable to GE1/0/2 of SW1, and pings the IP address of PC2 from PC1. Which of the following operations does SW1 perform after receiving a data frame from PC1 when PC1 is connected to GE1/0/2 of SW1?

Answer: B

Explanation:
An Ethernet switch learns MAC address entries dynamically by examining the source MAC address of incoming frames. When SW1 first receives frames from PC1 on GE1/0/1, it creates a MAC address table entry mapping PC1's MAC address to that port. If PC1 later sends frames that arrive on GE1/0/2, SW1 updates the learned entry to reflect the new incoming interface. Therefore, option B is correct: SW1 saves the mapping between PC1's MAC address and GE1/0/2 and removes or overwrites the old mapping associated with GE1/0/1.
Option A is incorrect because a single dynamic MAC address is not normally maintained on two different ports within the same VLAN at the same time; that would cause forwarding ambiguity. Option C is incorrect because a normal move of one MAC address does not require clearing the entire MAC table. Option D is also incorrect because switches update MAC learning dynamically upon receiving new source traffic and do not have to wait for the previous entry to age out. HCIA-Datacom uses this principle to explain MAC address learning, migration, and troubleshooting of loops or host movement in switched Ethernet networks.


NEW QUESTION # 16
Which of the following IPv6 addresses is a link-local address?

Answer: D

Explanation:
In IPv6, link-local addresses use the prefix FE80::/10. These addresses are automatically generated or configured for communication on the local link only and are not routed across Layer
3 boundaries. Therefore, among the given options, FE80::FA63:DBFF:FE9E:10 is the correct link- local address, making option C correct.


NEW QUESTION # 17
The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions.
Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end.

Answer: B

Explanation:
Access Control Lists (ACLs) are processed in sequential order, meaning that once a packet matches a rule, subsequent rules are ignored. To ensure that more specific (strict) conditions are applied, strict rules should be listed first, followed by loose rules.


NEW QUESTION # 18
Which of the following variables defined in Python code is invalid?

Answer: D

Explanation:
In Python, variable names must follow identifier rules: they cannot start with a digit. The variable
2_r1 is invalid because it begins with the number 2, which violates Python naming conventions.
The other variables are valid because they either start with letters or underscores and follow proper identifier rules.


NEW QUESTION # 19
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