23
902
1677
3389
第1题：
A.80
B.110
C.123
D.143
E.443
第2题：
Which three ports does a WX device use for control traffic purposes?（） (Choose three.)
第3题：
A.224.0.0.2
B.224.0.0.5
C.224.0.0.9
D.255.255.255.255
第4题：
Which of the following ports does RDP use by default？（）
第5题：
Which directory does the Junos OS use to store syslog information by default?（）
第6题：
Which of the following protocols use both TCP and UDP ports?（）
第7题：
Which of the following command line utilities can Karen, a technician, use to check for open ports?（）
第8题：
A.25
B.110
C.143
D.443
第9题：
Which of the following ports is the default for HTTP?（）
第10题：
Which of the following ports is used by default for IMAP traffic?（）