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Huawei H12-811_V2.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • IP Technology Basics: Covers IPv4
  • IPv6 addressing, subnetting, routing fundamentals, and common routing protocols such as OSPF, RIP, and static routing.
Topic 2
  • Data Communication Network Basics: Covers foundational concepts of data communication networks including network types, reference models (OSI
  • TCP-IP), and basic device roles.
Topic 3
  • Network O&M and Troubleshooting: Covers network operation and maintenance practices, common diagnostic tools, and methodologies for identifying and resolving network faults.
Topic 4
  • Typical Campus Networking Solution: Covers end-to-end campus network design scenarios, integrating switching, routing, security, and wireless technologies into a unified solution.
Topic 5
  • Network Security and Services: Covers essential network security mechanisms including ACLs, AAA, NAT, and basic firewall concepts to protect network infrastructure.
Topic 6
  • WLAN Technology Basics: Covers wireless LAN standards, components such as APs and ACs, WLAN architecture, and basic configuration principles.

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Huawei HCIA-Datacom V2.0 Sample Questions (Q65-Q70):

NEW QUESTION # 65
Which of the following commands can an administrator run to specify the configuration file for the next startup?

Answer: D

Explanation:
On Huawei VRP, the startup saved-configuration command specifies the configuration file that the device will load at the next restart. This is distinct from selecting the system software image. The startup system- software command identifies the software package used for the next boot, whereas startup saved- configuration identifies the saved configuration that should be restored after the software starts. The reset saved-configuration command clears the saved startup configuration rather than selecting one, and reset factory-configuration is used to restore factory-related settings on platforms that support it. In normal operations, an administrator first saves or uploads a valid configuration file to local storage and then uses startup saved-configuration to nominate that file for the next startup. The selected file must be in a format supported by the device and accessible in its file system. Therefore, when the requirement is specifically to define which configuration file is used after the next reboot, option B is the correct Huawei VRP command.


NEW QUESTION # 66
What is the broadcast address of the network that contains a host with IP address 192.168.1.147/28?

Answer: B

Explanation:
A /28 subnet mask corresponds to 255.255.255.240, which means each subnet contains 16 IP addresses . The subnet boundaries in the last octet increase in steps of 16: 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, and so on. The host address 192.168.1.147 falls within the subnet range 192.168.1.144 to 192.168.1.159 .
In that subnet, the network address is 192.168.1.144, the usable host range is 192.168.1.145 through
192.168.1.158, and the broadcast address is 192.168.1.159. Therefore, option C is correct. Option D is the first usable host address, not the broadcast address. Option A is just another usable host address. Option B would be the broadcast address only for a /24 network, not for a /28. HCIA-Datacom requires learners to master subnetting because it is essential for IP planning, gateway deployment, route summarization, and troubleshooting Layer 3 communication issues in campus and enterprise networks.


NEW QUESTION # 67
Which of the following configurations can enable connectivity between interfaces on R1 and R3? (Select all that apply)

Answer: C,D

Explanation:
For two directly connected edge networks to communicate through intermediate routing, each end router must have a route to the remote destination network pointing to the correct next hop on the transit link. Since
10.0.0.0/24 is directly connected to R1 and 20.1.1.0/24 is directly connected to R3, R1 needs a route to
20.1.1.0/24, and R3 needs a route to 10.0.0.0/24.
Option A is correct because it configures on R1 a static route to the remote network 20.1.1.0/24 using next hop 10.0.0.2, which is the neighbor toward the transit path. Option D is correct because it configures on R3 a static route to the remote network 10.0.0.0/24 using next hop 20.1.1.1, which is the proper adjacent forwarding address in that direction. Option B is incorrect because a router cannot use a next hop that belongs to the remote destination network but is not directly reachable as a valid immediate forwarding address in this topology. Option C is also incorrect because the specified next hop is not the correct adjacent next-hop address for R3. HCIA-Datacom stresses that static routes must always point to a reachable next hop or outbound interface.


NEW QUESTION # 68
Assume you need to assign IP addresses from different networks to four departments, which have 100, 50, 32, and 31 hosts, respectively. Assigning addresses from subnet 192.168.1.0/24 cannot meet this requirement.

Answer: B

Explanation:
A /24 network (192.168.1.0/24) provides 256 IP addresses, with 254 usable host addresses.
Using VLSM, the host requirements are 100, 50, 32, and 31, which require subnet sizes of 128,
64, 64, and 64 addresses respectively (since 32-host and 31-host networks both need /26 or larger depending on usable host calculation). The total required address space exceeds what can be efficiently allocated within a single /24 network without overlap or waste constraints.


NEW QUESTION # 69
On an intelligent computing data center network, network administrators deploy various intelligent lossless network technologies such as PFC to implement a high-speed and low-latency lossless network. Which of the following statements are false about the working principles of PFC?
(Choose all that apply.)

Answer: A,D

Explanation:
PFC (Priority Flow Control) is triggered before buffer overflow, based on predefined thresholds, not only when the buffer is fully cleared. The receiver sends PFC pause frames when congestion is detected or thresholds are exceeded to pause specific traffic priorities. It resumes transmission by sending a PFC resume (stop pause) frame once congestion is relieved to a safe threshold level, not after the buffer is completely emptied.


NEW QUESTION # 70
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