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質問 1：
aboutOSPFWhich of the following statements is false?
A. Stalling in ExStart state may be a bad match between neighbor routers
B. stagnantINThe it state indicates that the router has received the neighbor'sHello message. butHell messagedoes not include this routerOSPF Router ID
C. The two router databases are synchronized, SPFAn error occurred in the calculation, it must be because of the RouterID repeated
D. For a pair of additional 0hers on an Ethernet link, it is normal to stop clearing in the 2-72 state
正解：D
質問 2：
About the difference between NSR and NSF, which is correct?
A. Both NSR and NSP require neighbor routers to complete
B. NSP can be done without neighbor routers
C. NSF must rely on neighbor routers to complete
D. NSR must rely on neighbor routers to complete
正解：C
質問 3：
A campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFv3 to implement IPv6 network interconnection. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Which of the following statements is true about the description of this LSA?
A. IPv6 address prefix for GEO/0/0: 2001:DB8:2345:23::/64
B. The router that generates this LSA is R2 port R2 connected
C. The SA shows 2 does not support external routing, but participates in IPv6 routing calculation
D. The link-local address of R2 interface GEO/0/0 is: FE80::2E0:FCFF:FEC, D:4F79
正解：A,B,D
質問 4：
Which of the following reasons may cause the hosts in the same--VLAN LAN to fail to communicate with each other
A. port isolation is configured on the switch
B. the wrong port is configured on the machine, andMA, Caddress binding
C. switchMA, Caddress learning errors
D. interface is artificialshutdownor the physical interface is damaged
正解：A,B,C,D
質問 5：
Network administrator A wants to use A, CL to match specific routing entries. Which of the following routing entries will be matched by the A, CL rules in the figure?
acl number 2000
rule 10 permit source 10.0.0.0 0.0.6.0
A. 10.0.0.1/32
B. 10.0.0.0/24
C. 10.0.2.0/24
D. 10.0.1.0/24:
正解：B,C
質問 6：
In an operator's MPLSVPN network, there are two devices PE1 and PE2 for MPLSVPN data forwarding. PE1 receives a private network route of 172.16.1.0/24 from the client, and converts it to a VPNv4 route on PE1 and assigns a label of 1027 Released to PE2. The outgoing label of the MPLS LSR-ID of PE2 reaching PE1 is 1025o When a client on PE2 accesses 172.16.1.0/24, the frame sent by PE2, the inner and outer labels should be a combination of the following 6 options?
A. Layer Label:1027:inner label:1025
B. Layer Label,1025:inner label:1025
C. outer layer label:1027:inner label:1027
D. outer layer label:1025:inner label:1027
正解：D
aboutOSPFWhich of the following statements is false?
A. Stalling in ExStart state may be a bad match between neighbor routers
B. stagnantINThe it state indicates that the router has received the neighbor'sHello message. butHell messagedoes not include this routerOSPF Router ID
C. The two router databases are synchronized, SPFAn error occurred in the calculation, it must be because of the RouterID repeated
D. For a pair of additional 0hers on an Ethernet link, it is normal to stop clearing in the 2-72 state
正解：D
質問 2：
About the difference between NSR and NSF, which is correct?
A. Both NSR and NSP require neighbor routers to complete
B. NSP can be done without neighbor routers
C. NSF must rely on neighbor routers to complete
D. NSR must rely on neighbor routers to complete
正解：C
質問 3：
A campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFv3 to implement IPv6 network interconnection. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Which of the following statements is true about the description of this LSA?
A. IPv6 address prefix for GEO/0/0: 2001:DB8:2345:23::/64
B. The router that generates this LSA is R2 port R2 connected
C. The SA shows 2 does not support external routing, but participates in IPv6 routing calculation
D. The link-local address of R2 interface GEO/0/0 is: FE80::2E0:FCFF:FEC, D:4F79
正解：A,B,D
質問 4：
Which of the following reasons may cause the hosts in the same--VLAN LAN to fail to communicate with each other
A. port isolation is configured on the switch
B. the wrong port is configured on the machine, andMA, Caddress binding
C. switchMA, Caddress learning errors
D. interface is artificialshutdownor the physical interface is damaged
正解：A,B,C,D
質問 5：
Network administrator A wants to use A, CL to match specific routing entries. Which of the following routing entries will be matched by the A, CL rules in the figure?
acl number 2000
rule 10 permit source 10.0.0.0 0.0.6.0
A. 10.0.0.1/32
B. 10.0.0.0/24
C. 10.0.2.0/24
D. 10.0.1.0/24:
正解：B,C
質問 6：
In an operator's MPLSVPN network, there are two devices PE1 and PE2 for MPLSVPN data forwarding. PE1 receives a private network route of 172.16.1.0/24 from the client, and converts it to a VPNv4 route on PE1 and assigns a label of 1027 Released to PE2. The outgoing label of the MPLS LSR-ID of PE2 reaching PE1 is 1025o When a client on PE2 accesses 172.16.1.0/24, the frame sent by PE2, the inner and outer labels should be a combination of the following 6 options?
A. Layer Label:1027:inner label:1025
B. Layer Label,1025:inner label:1025
C. outer layer label:1027:inner label:1027
D. outer layer label:1025:inner label:1027
正解：D
Kei -
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