单选题For which network anomaly does Junos provide a SCREEN?（）A a telnet to port 80B a TCP packet with the SYN and ACK flags setC an SNMP getnext requestD an ICMP packet larger than 1024 bytes
题目
单选题
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