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單項(xiàng)選擇題

Which of the following commands should be used to make permanent static route entries that will persist across reboots？（）

A.chroot
B.route static
C.route add
D.smitty route

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單項(xiàng)選擇題

Which of the following parameters can prevent packet fragmentation on routers when connecting to remote networks？（）

A.mtu
B.sb-max
C.rfc1323
D.tcp_mssdflt

單項(xiàng)選擇題

In a TCP/IP network， which of the following protocols is involved when a user issues a ping command？（）

A.TCP
B.UDP
C.ICMP
D.SMTP