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質問 1：
Configure under a certain interface: isis timer hello 5 level-2, which of the following statements is correct?
A. The hello packet sending interval of Level-1 and Leve1-2 on this interface is both 5s
B. The interval for sending Level-2 CSNP packets of this interface is 5s
C. The interval for sending Level-2 hello packets on this interface is 5s
D. The interval for sending Level-1 hello packets on this interface is 5s
正解：C
質問 2：
What is the value of OSPF and BFD linkage?
A. Through the BFD detected at the millisecond level, the OSPF status is associated to achieve the purpose of OSPF quickly sensing the link status
B. The sending interval of BFD packets can reach the millisecond level, which is slower than the OSPF sensing link state
C. The hello sending interval of OSPF is at the second level, which is faster than the BFD sensing link state
D. Any change in the BFD status will not affect the OSPF neighbor status
正解：A
質問 3：
As shown in the figure, in the IPv4 and IPv6 environment, the SEL field in the ISIS NET address always takes the value 00.
A. False
B. True
正解：B
質問 4：
As shown in the figure, the ISIS overload bit is set in the configuration of router R3. Which of the following statements is correct? (Multiple Choice)
A. The LSP of R3 will not spread to R1 and R2.
B. R3 starts the load discussion state, R1 and R2 will not calculate the LSP generated by R3 in the SP tree.
C. The routes imported by R3 through import-route will not be advertised.
D. The direct route of R3 will be ignored by R1 and R2 because of the overload bit setting.
E. When the router memory is insufficient, the system automatically sets the overload flag in the sent LSP message, regardless of whether the user has configured the set-overload command.
正解：B,E
質問 5：
The following is about the LDP protocol session establishment process, which is the correct description? (Multiple choice)
A. The Hello message discovered by the LDP neighbor uses TCP packets. The destination address is the multicast address 224.0.0.2.
B. The party with the larger transmission address acts as the active party and initiates the establishment of TCP connection.
C. After the TCP connection is successfully established, the active party sends an initialization message to negotiate the parameters related to the LDP session.
D. After both parties receive the Keepalive message from the peer, the LDP session is established successfully.
正解：B,C,D
質問 6：
Which of the following role of Link-LSA in OSPFv3 not include?
A. Advertise the IPv6 prefix list of this port to other routers on the link
B. Notify other routers on the link of the options set in the Network LSA originating from this link
C. Notify the router's per-port ID to other routers on the link
D. Advertise the link-local address of this interface to other routers on the link
正解：C
Configure under a certain interface: isis timer hello 5 level-2, which of the following statements is correct?
A. The hello packet sending interval of Level-1 and Leve1-2 on this interface is both 5s
B. The interval for sending Level-2 CSNP packets of this interface is 5s
C. The interval for sending Level-2 hello packets on this interface is 5s
D. The interval for sending Level-1 hello packets on this interface is 5s
正解：C
質問 2：
What is the value of OSPF and BFD linkage?
A. Through the BFD detected at the millisecond level, the OSPF status is associated to achieve the purpose of OSPF quickly sensing the link status
B. The sending interval of BFD packets can reach the millisecond level, which is slower than the OSPF sensing link state
C. The hello sending interval of OSPF is at the second level, which is faster than the BFD sensing link state
D. Any change in the BFD status will not affect the OSPF neighbor status
正解：A
質問 3：
As shown in the figure, in the IPv4 and IPv6 environment, the SEL field in the ISIS NET address always takes the value 00.
A. False
B. True
正解：B
質問 4：
As shown in the figure, the ISIS overload bit is set in the configuration of router R3. Which of the following statements is correct? (Multiple Choice)
A. The LSP of R3 will not spread to R1 and R2.
B. R3 starts the load discussion state, R1 and R2 will not calculate the LSP generated by R3 in the SP tree.
C. The routes imported by R3 through import-route will not be advertised.
D. The direct route of R3 will be ignored by R1 and R2 because of the overload bit setting.
E. When the router memory is insufficient, the system automatically sets the overload flag in the sent LSP message, regardless of whether the user has configured the set-overload command.
正解：B,E
質問 5：
The following is about the LDP protocol session establishment process, which is the correct description? (Multiple choice)
A. The Hello message discovered by the LDP neighbor uses TCP packets. The destination address is the multicast address 224.0.0.2.
B. The party with the larger transmission address acts as the active party and initiates the establishment of TCP connection.
C. After the TCP connection is successfully established, the active party sends an initialization message to negotiate the parameters related to the LDP session.
D. After both parties receive the Keepalive message from the peer, the LDP session is established successfully.
正解：B,C,D
質問 6：
Which of the following role of Link-LSA in OSPFv3 not include?
A. Advertise the IPv6 prefix list of this port to other routers on the link
B. Notify other routers on the link of the options set in the Network LSA originating from this link
C. Notify the router's per-port ID to other routers on the link
D. Advertise the link-local address of this interface to other routers on the link
正解：C
庄司** -
合格力が効率的に身に付きます。そういうところもやはりPass4Test素敵だと思う点です