最新的 Huawei Certified ICT Expert H12-891_V1.0 免費考試真題:

1. Which of the following statements about the SP scheduling algorithm is incorrect?

A) To ensure the quality of key services, the SP algorithm can be used to schedule services and set the minimum bandwidth.
B) If the SP scheduling algorithm is used and a high-priority queue occupies a large amount of bandwidth, the low-priority queue may be starved.
C) The SP scheduling algorithm preferentially schedules high-priority queues.
D) When the SP scheduling algorithm is used to schedule multiple low-priority queues, the data packets that enter the queue first are forwarded first.

2. On a CloudCampus virtualized campus network, virtual networks are defined based on services. Each virtual network corresponds to a service, and isolation needs to be manually configured between virtual networks.

A) TRUE
B) FALSE

3. The figure shows a packet that contains three label headers. Select the values (in decimal notation) of the X, Y, and Z fields, respectively.

4. As shown in the figure, PE1 establishes an EVPN peer relationship with each of PE2 and PE3. When the network is initialized, CE1 sends an ARP request packet.
Which of the following statements are correct about how a PE processes the packet?

A) PE3 forwards the packet to CE1.
B) PE2 forwards the packet to CE1.
C) When forwarding the packet to PE3, PE1 needs to add the BUM traffic label allocated by PE3 to the packet.
D) PE1 sends a MAC/IP advertisement route carrying the MAC address of CE1.

5. IS-IS supports multi-instance and multi-process. Which of the following statements are correct about IS-IS multi-instance and multi-process?

A) One VPN instance can be associated with multiple different IS-IS processes.
B) One IS-IS process can be associated with only one VPN instance.
C) One IS-IS process can be associated with multiple different VPN instances.
D) If multiple IS-IS processes are created on an IS-IS router, these processes are independent of each other.

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