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

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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

多项选择题

Which two functions of JUNOS Software are handled by the data plane？（）

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