单项选择题

By default， which condition would cause a session to be removed from the session table？（）

A.Route entry for the session changed.
B.Security policy for the session changed.
C.The ARP table entry for the source IP address timed out.
D.No traffic matched the session during the timeout period.

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多项选择题

In JUNOS Software， which three packet elements can be inspected to determine if asession already exists？（）

A.IP protocol
B.IP time-to-live
C.source and destination IP address
D.source and destination MAC address
E.source and destination TCP/UDP port

多项选择题

Which two statements about JUNOS Software packet handling are correct？（）

A.JUNOS Software applies service ALGs only for the first packet of a flow.
B.JUNOS Software uses fast-path processing only for the first packet of a flow.
C.JUNOS Software performs route and policy lookup only for the first packet of a flow.
D.JUNOS Software applies SCREEN options for both first and consecutive packets of a flow.

单项选择题

Host A opens a Telnet connection to Host B. Host A then opens another Telnet connectionto Host B. These connections are the only communication between Host A and Host B. Thesecurity policy configuration permits both connections.How many flows exist between Host A and Host B？（）

A.1
B.2
C.3
D.4