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单选题
According to RFC 3180， what is the correct GLOP address for AS456？（）
A
224.0.4.86
B
224.4.86.0
C
233.1.200.0
D
239.2.213.0
E
239.4.5.6
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The router address 192.168.1.250 is the default gateway for both the Web Server 2 and Host 1. What is the correct subnet mask for this network（）。A、255.255.255.0B、255.255.255.192C、255.255.255.250D、255.255.255.252
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Given the host IP address of 192.168.100.60 and a network mask of 255.255.255.224 (or /27), which address represents the correct network address for the referenced host?（）A、192.168.100.48B、192.168.100.16C、192.168.100.0D、192.168.100.32
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考题
单选题Which of the following descriptions about IP spoofing is correct？（）A
IP source address is forgedB
IP destination address is forgedC
IP TCP source port is forgedD
IP TCP destination port is forgedE
None of above
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单选题When implementing best practices for IP Source Address Spoofing and Defeating Denial of Service Attacks with IP SourceAddress Spoofing， what RFC is commonly usedto protect your network？（）A
RFC 1149B
RFC 3704C
RFC 1918D
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单选题An administrator mistakenly shutdown production after a fallover because the service IP address Was shifted from the normal production node to the standby node. What can be done to avoid this type of mistake in the future？（）A
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255.255.255.192C
255.255.255.250D
255.255.255.252
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单选题Which of the following protocols enables a group of routers to form a single virtual router， and then use the real IP address of a router as the gateway address， as defined in RFC 2338？（）A
Proxy ARPB
HSRPC
IRDPD
VRRPE
GLBP
考题
单选题Given the host IP address of 192.168.100.60 and a network mask of 255.255.255.224 (or /27), which address represents the correct network address for the referenced host?（）A
192.168.100.48B
192.168.100.16C
192.168.100.0D
192.168.100.32
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