A technician is using a packet sniffer to identify a server. The technician observes the following network traffic: Which of the following is MOST likely to be the server?()
A、 HOST-A
B、 HOST-B
C、 HOST-C
D、 HOST-D
![](http://static.sotiji.com/static/index/img/search_icon.png)
A technician is using a packet sniffer to identify a server. The technician observes the following network traffic: Which of the following is MOST likely to be the server?()
A、 HOST-A
B、 HOST-B
C、 HOST-C
D、 HOST-D
What is used to view status messages sent to a file named "test" as they are sent?()
A、monitor start test
B、show log test
C、view log test
D、show test realtime
要求利用所提供的室内接地件将馈线接头与母地线相连,连接点牢固,并作绝缘处理,地线应穿出地线U型卡()左右,以保证接触良好。
A、2mm
B、5mm
C、4mm
D、1mm
光纤直放站设备与无线直放站设备通信原理一样。
A、对
B、错
A user receives an email slating that their account was compromised and there is a need to verify account credentials by submitting the correct information on a website. Which of the following security threats is occurring?()
A、Phishing
B、Smurf attack
C、Denial of service
D、Man-in-the-middle
阐述无线通信的基本原理。