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質問 1：
In the SDN architecture, which of the following protocols is used for communication between the control layer
and application layer?
A. OpenFlow
B. NETCONF
C. NetStream
D. RESTful
正解：A
質問 2：
Regarding the CE series switches on an SDN network, which of the following statements are true about their
application in data centers? (Multiple Choice)
A. The network between TORs and core switches must be a Layer 2 network that runs MSTP to prevent
loops.
B. A CE series switch can connect to a server as a TOR.
C. The network between TORs and core switches can be either a Layer 2 or a Layer 3 network.
D. The network between TORs and core switches must be an ECMP-enabled Layer 3 network.
正解：C,D
質問 3：
When a host shifts from one network to another, which of the following statements are true?
A. You must change its IP address, but not its MAC address.
B. You must change its MAC address, but not its IP address.
C. The MAC address and IP address do not need to be changed.
D. You must change its IP address and MAC address.
正解：C
質問 4：
In terms of the SDN architecture, the ONF does not recommend carriers to change the existing network
architecture, but the IETF recommends carriers to do so.
A. TRUE
B. FALSE
正解：A
質問 5：
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 6：
For a router that runs BGP4, which of the following statements is not true?
A. BGP4 notifies the routes obtained from EBGP to all its BGP peers.
B. BGP4 notifies the routes obtained from IBGP to all its BGP peers.
C. BGP4 advertises to BGP peers only the routes it uses.
D. When multiple paths exist, BGP4 selects the optimal path.
正解：C
In the SDN architecture, which of the following protocols is used for communication between the control layer
and application layer?
A. OpenFlow
B. NETCONF
C. NetStream
D. RESTful
正解：A
質問 2：
Regarding the CE series switches on an SDN network, which of the following statements are true about their
application in data centers? (Multiple Choice)
A. The network between TORs and core switches must be a Layer 2 network that runs MSTP to prevent
loops.
B. A CE series switch can connect to a server as a TOR.
C. The network between TORs and core switches can be either a Layer 2 or a Layer 3 network.
D. The network between TORs and core switches must be an ECMP-enabled Layer 3 network.
正解：C,D
質問 3：
When a host shifts from one network to another, which of the following statements are true?
A. You must change its IP address, but not its MAC address.
B. You must change its MAC address, but not its IP address.
C. The MAC address and IP address do not need to be changed.
D. You must change its IP address and MAC address.
正解：C
質問 4：
In terms of the SDN architecture, the ONF does not recommend carriers to change the existing network
architecture, but the IETF recommends carriers to do so.
A. TRUE
B. FALSE
正解：A
質問 5：
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 6：
For a router that runs BGP4, which of the following statements is not true?
A. BGP4 notifies the routes obtained from EBGP to all its BGP peers.
B. BGP4 notifies the routes obtained from IBGP to all its BGP peers.
C. BGP4 advertises to BGP peers only the routes it uses.
D. When multiple paths exist, BGP4 selects the optimal path.
正解：C
Sagara -
読み続けているうちに要点が頭に入っているので苦手な過去問を解けるようになっていることが嬉しいです。
このPass4Testの問題集にとても感謝しています。