Which of the following descriptions about OSPF Router ID is correct?

• A.When the OSPF Router ID is not manually configured, the device first uses the IP address of the Loopback 0 interface as the Router ID.
• B.When using the IP address of a physical interface as the Router ID of OSPF, the interface must be included in the corresponding OSPF domain.
• C.If the physical interface IP address is used as the OSPF Router ID, the one with the highest IP address will be selected as the OSPF Router ID of the device.
• D.Allow multiple devices to use the same Router ID, which also makes it easier to identify the area where the device is located.

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Which of the following PIM protocol packets have unicast destination addresses.

• A.Graft
• B.Bootstrap
• C.Register Stop
• D.Assert

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Huawei modular devices have multiple hardware modules that provide different functions. Match the following hardware modules with their functions.

Correct Answer:

Explanation:
The hardware modules of Huawei modular devices and their functions are:
* Main Processing Unit (MPU): Provides control and management planes for the entire system, responsible for protocol processing, system security, and software upgrades.
* Switch Fabric Unit (SFU): Provides the data plane, enabling high-speed data switching between service modules.
* Line Processing Unit (LPU): Manages data forwarding, offering various interfaces (optical and electrical) for data access.

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Which of the following descriptions of routing policy characteristics is incorrect?

• A.Able to improve network security by controlling the reception, publishing and introduction of routes
• B.Can modify routing attributes, but cannot change the path that network traffic passes through.
• C.Can save system resources by controlling the size of the router's routing table.
• D.By modifying routing attributes, network data traffic can be reasonably planned to improve network performance.

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A switch running a later IGMP version can identify Report messages of an earlier IGMP version, but the switch running an earlier IGMP version cannot identify Report messages of a later IGMP version. To ensure that IGMP runs properly, you are advised to set the IGMP version on the switch to be the same as or later than the IGMP version of member hosts.

• A.TRUE
• B.FALSE

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