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質問 1：
Which of the following statements are true about the comparison between OSPF and IS-IS? (Multiple Choice)
A. OSPF supports P2P/P2MP/NBMA/broadcast networks. IS-IS supports only P2P and broadcast
networks.
B. OSPF runs on the IP layer, and IS-IS runs on the data link layer.
C. DIS election in IS-IS is simple, preemptive, and can be predicted. DR election in OSPF is unpredictable
and non-preemptive.
D. For IS-IS, a router belongs to multiple areas, but in OSPF, a router can belong to only one area.
正解：B,C
質問 2：
Which of the following is the port number used by VXLAN packets?
A. 4789
B. 4786
C. 4788
D. 4787
正解：B
質問 3：
Regarding the VS technology of CE series switches on an SON network, which of the following statements
are true? (Multiple Choice)
A. All ports on a forwarding chip of the LPU must be allocated to the VS in Group mode at the same time
B. Any LPU ports can be freely assigned to any VS in Group mode
C. All ports on a forwarding chip of the LPU must be allocated to the VS in Port mode at the same time
D. Any LPU ports can be freely assigned to any VS in Port mode
正解：B,D
質問 4：
Currently, the packet forwarding efficiency of Layer 3 switches is greatly improved. Which of the following
may be the cause?
A. By using packet-to-packet forwarding technology
B. By using the "routing once and switching multiple times" forwarding technology
C. By using higher-performance hardware
D. By dividing the VLAN to effectively suppress broadcast storms and save bandwidth and other system
resources
正解：C
質問 5：
In the OpenFlow network switch model, the underlying data channel opens the flow table's public API to the
outside and uses the SNC to control the entire network.
A. TRUE
B. FALSE
正解：A
質問 6：
Which of the following statements are true about OpenFlow interface information reporting? (Multiple
Choice)
A. After the OpenFlow channel is successfully established, the controller actively queries port information
from FPs.
B. FPs respond with a Multipart Reply message for batch delivery of port information.
C. The controller sends Multipart Request messages to query port information.
D. When a port changes, the corresponding FP actively sends a Flow Mod message to report the port
change information.
正解：A,B
Which of the following statements are true about the comparison between OSPF and IS-IS? (Multiple Choice)
A. OSPF supports P2P/P2MP/NBMA/broadcast networks. IS-IS supports only P2P and broadcast
networks.
B. OSPF runs on the IP layer, and IS-IS runs on the data link layer.
C. DIS election in IS-IS is simple, preemptive, and can be predicted. DR election in OSPF is unpredictable
and non-preemptive.
D. For IS-IS, a router belongs to multiple areas, but in OSPF, a router can belong to only one area.
正解：B,C
質問 2：
Which of the following is the port number used by VXLAN packets?
A. 4789
B. 4786
C. 4788
D. 4787
正解：B
質問 3：
Regarding the VS technology of CE series switches on an SON network, which of the following statements
are true? (Multiple Choice)
A. All ports on a forwarding chip of the LPU must be allocated to the VS in Group mode at the same time
B. Any LPU ports can be freely assigned to any VS in Group mode
C. All ports on a forwarding chip of the LPU must be allocated to the VS in Port mode at the same time
D. Any LPU ports can be freely assigned to any VS in Port mode
正解：B,D
質問 4：
Currently, the packet forwarding efficiency of Layer 3 switches is greatly improved. Which of the following
may be the cause?
A. By using packet-to-packet forwarding technology
B. By using the "routing once and switching multiple times" forwarding technology
C. By using higher-performance hardware
D. By dividing the VLAN to effectively suppress broadcast storms and save bandwidth and other system
resources
正解：C
質問 5：
In the OpenFlow network switch model, the underlying data channel opens the flow table's public API to the
outside and uses the SNC to control the entire network.
A. TRUE
B. FALSE
正解：A
質問 6：
Which of the following statements are true about OpenFlow interface information reporting? (Multiple
Choice)
A. After the OpenFlow channel is successfully established, the controller actively queries port information
from FPs.
B. FPs respond with a Multipart Reply message for batch delivery of port information.
C. The controller sends Multipart Request messages to query port information.
D. When a port changes, the corresponding FP actively sends a Flow Mod message to report the port
change information.
正解：A,B
Shiina -
非常にありがたいです。これだけ内容が充実しているのにこの安さは正直驚きです。