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>> Certified H12-811_V2.0 Questions <<
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NEW QUESTION # 22
Which of the following DHCPv4 messages are sent by a DHCPv4 server?
Answer: A,D
NEW QUESTION # 23
Which of the following protocols cannot be used for accounting between an AAA client and an AAA server?
Answer: A,D
Explanation:
RADIUS and HWTACACS are AAA protocols that support accounting functions in addition to authentication and authorization. Accounting records can be used to track login sessions, service usage, command activity, or other information required by the deployment. LDAP and Microsoft Active Directory, by contrast, are directory-based identity technologies. Huawei documentation describes LDAP/AD integration primarily for authentication and authorization by querying directory information and validating user credentials. They are not used as the native AAA accounting protocol between a Huawei AAA client and an AAA server in the same way as RADIUS or HWTACACS. Therefore, when the question asks which listed protocols cannot be used for accounting between the AAA client and AAA server, AD and LDAP are the appropriate selections. RADIUS explicitly carries accounting messages, and HWTACACS also separates and supports authentication, authorization, and accounting functions. The source file leaves the answer blank, but the Datacom AAA model supports a verified answer of B and D.
NEW QUESTION # 24
On the network shown in the figure, all switches run STP. All links have a path cost of 20, and SW1 is the root bridge. What is the root path cost (RPC) of SW4?
Answer: A
Explanation:
The root path cost (RPC) of a switch is the total path cost from that switch to the root bridge along the selected spanning-tree path. Since SW1 is given as the root bridge, its RPC is 0. Each link in the topology has a path cost of 20 . To determine SW4's RPC, you identify the shortest active STP path from SW4 to SW1.
Based on the topology used in the question, SW4 reaches SW1 through a path containing two links .
Therefore, the total root path cost is 20 + 20 = 40 , which makes option B correct. This is a standard STP calculation. HCIA-Datacom uses RPC as one of the main comparison parameters in root-port election on non- root switches. A lower RPC means a better path toward the root bridge. If multiple candidate ports have the same RPC, the switch then compares the sender's bridge ID and port ID. This question checks whether the learner understands that RPC is cumulative across the spanning-tree forwarding path and is not simply the cost of a single directly connected link unless the switch is directly attached to the root bridge.
NEW QUESTION # 25
Given the following routing table, what is the source IP address used by R1 when sending an ICMP packet to ping 10.0.3.3?
Answer: C
Explanation:
When R1 sends an ICMP echo request, it selects the outgoing interface based on the routing table. The route to 10.0.3.3 uses the next hop 10.0.23.3 via GE0/0/2. Huawei devices use the IP address of the egress interface as the source IP for locally generated packets. GE0/0/2 has the address 10.0.23.2, so this is used as the source IP.
NEW QUESTION # 26
On an STP network, an administrator wants SW2 to be elected as the root bridge. Which of the following methods can be used to achieve this goal?
Answer: D
Explanation:
In STP, the root bridge is elected based on the lowest bridge ID (BID). A BID is composed of the bridge priority and the MAC address of the switch. The device with the smallest BID becomes the root bridge.
Therefore, if an administrator wants SW2 to become the root bridge, the most direct and correct method is to configure a lower system priority on SW2, making option C correct.
Option A is incorrect because port priority affects port-role selection in some tie-breaking scenarios, but it does not determine root-bridge election. Option B is the opposite of what is required, because a higher system priority makes the BID larger and reduces the chance of being elected as root. Option D is also incorrect because root path cost is used by non-root bridges to select the best path to the existing root bridge; it does not determine which switch becomes the root bridge in the first place. HCIA-Datacom stresses that bridge priority tuning is the standard administrative method used to control root bridge placement in campus networks for stable and predictable Layer 2 topology design.
NEW QUESTION # 27
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