单项选择题

One solution to major security problems is (71) , which are frequently installed to fix known security holes。

A．additions
B．compensations
C．patches
D．complements
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单项选择题
A．ifconfig eth1 192.168.0.1 255.255.255.0 upB．ifconfig eth1 192.168.0.1 up netmask 255.255.255.0C．ifconfig 192.168.0.1 24 eth1 netmask 255.255.255.0 upD．ifconfig-up eth1 192.168.0.1 24
A．ifconfig eth1 192.168.0.1 255.255.255.0 up
B．ifconfig eth1 192.168.0.1 up netmask 255.255.255.0
C．ifconfig 192.168.0.1/24 eth1 netmask 255.255.255.0 up
D．ifconfig-up eth1 192.168.0.1/24
单项选择题
A．route add default gw 192.168.0.1B．route add up192.168.0.1C．route and-net 0.0.0.0 32 gw 192.168.0.1D．route add-host 192.168.0.100 24 gw 192.168.0.1
A．route add default gw 192.168.0.1
B．route add up192.168.0.1
C．route and-net 0.0.0.0/32 gw 192.168.0.1
D．route add-host 192.168.0.100/24 gw 192.168.0.1
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