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單項(xiàng)選擇題

What is a valid option when using the ping command?（）

A. packet loss
B. packet size
C. CRC
D. TCP port

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單項(xiàng)選擇題

Which class-of-service component allows you to define the bandwidth allocated to different traffic types?（）

A. classificatoin
B. rewrite marking
C. scheduling
D. queueing

多項(xiàng)選擇題

What are three valid match criteria in a firewall filter applied to a Layer 3 interface?（）

A. IP address
B. MAC address
C. protocol
D. port
E. session ID