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Huawei H12-811_V2.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Network O&M and Troubleshooting: Covers network operation and maintenance practices, common diagnostic tools, and methodologies for identifying and resolving network faults.
Topic 2
  • Ethernet Technology Basics: Covers Ethernet standards, switching principles, VLANs, and Layer 2 protocols used in enterprise network environments.
Topic 3
  • Data Communication Network Basics: Covers foundational concepts of data communication networks including network types, reference models (OSI
  • TCP-IP), and basic device roles.
Topic 4
  • Network Security and Services: Covers essential network security mechanisms including ACLs, AAA, NAT, and basic firewall concepts to protect network infrastructure.
Topic 5
  • IP Technology Basics: Covers IPv4
  • IPv6 addressing, subnetting, routing fundamentals, and common routing protocols such as OSPF, RIP, and static routing.

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

NEW QUESTION # 65
What is the broadcast address of the network that contains a host with IP address
192.168.1.147/28?

Answer: C

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.


NEW QUESTION # 66
Which of the following statements regarding static routing and dynamic routing is incorrect?

Answer: B

Explanation:
Static routing does not automatically recover from link failures; manual reconfiguration is required if a static route path becomes invalid. Dynamic routing protocols, on the other hand, adapt automatically to network changes, adjusting routes as needed.


NEW QUESTION # 67
Private addresses are network or host addresses that are constrained for use within internal networks and cannot be used for Internet access directly. Which of the following IP addresses is not a private IP address?

Answer: A

Explanation:
Private IPv4 address ranges are 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. The address
172.32.32.32 falls outside the private 172.16.0.0-172.31.255.255 range, so it is a public IP address and not a private one.


NEW QUESTION # 68
In the 802.11 standard, the 2.4 GHz frequency band is divided into 14 overlapping, staggered 20 MHz channels, numbered from 1 to 14.

Answer: A

Explanation:
The IEEE 802.11 channel plan for the 2.4 GHz ISM band defines channels numbered 1 through 14, with adjacent channel center frequencies separated by 5 MHz. Because a traditional 20 MHz Wi-Fi channel occupies substantially more spectrum than the 5 MHz center-frequency spacing, neighboring channels overlap. This is why WLAN planning normally uses a limited set of non-overlapping or minimally overlapping channels, such as 1, 6, and 11 in many regulatory domains. The fact that fourteen channel numbers exist in the standard does not mean that every country permits operation on every one of them.
Regulatory domains restrict the usable subset; for example, channel 14 is not generally available worldwide and has historically been associated with specific Japanese operation. Huawei APs apply the configured regulatory domain to determine which channels may actually be selected. The statement concerns the standard channelization itself rather than regional permission to use every channel. On that basis, the statement is TRUE and option A is correct.


NEW QUESTION # 69
There are two Ethernet frame formats: Ethernet_II and IEEE 802.3. The Ethernet_II frame format uses the Type field to determine the upper-layer protocol type, and the IEEE 802.3 frame format uses the Tag field to determine the upper-layer protocol type.

Answer: B

Explanation:
Ethernet II frames use the Type field to indicate the upper-layer protocol, while IEEE 802.3 frames use the Length field (not a Tag field) to distinguish frame length. The protocol type in IEEE
802.3 is determined by the LLC/SNAP layer above the frame, not by a Tag field.


NEW QUESTION # 70
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