单项选择题

For which network anomaly does Junos provide a SCREEN?（）

A. a telnet to port 80
B. a TCP packet with the SYN and ACK flags set
C. an SNMP getnext request
D. an ICMP packet larger than 1024 bytes

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单项选择题

Which statement is correct about HTTP trickling?（）

A. It prevents the HTTP client or server from timing-out during an antivirus update
B. It prevents the HTTP client or server from timing-out during antivirus scanning.
C. It is an attack.
D. It is used to bypass antivirus scanners.

单项选择题

After applying the policy-rematch statement under the security policies stanza, what would happen to an existing flow if the policy source address or the destination address is changed and committed?（）

A. The Junos OS drops any flow that does not match the source address or destination address.
B. All traffic is dropped.
C. All existing sessions continue.
D. The Junos OS does a policy re-evaluation.

多项选择题

Which two functions of the Junos OS are handled by the data plane? （）(Choose two.)

A. NAT
B. OSPF
C. SNMP
D. SCREEN options