多项选择题 A network administrator receives complaints from the engineering group that an application on one server is not working properly. After further investigation, the administrator determines that source NAT translation is using a different source address after a random number of flows. Which two actions can the administrator take to force the server to use one address?（） (Choose two.)

单项选择题 A user wants to establish an FTP session to a server behind an SRX device but must authenticate to a Web page on the SRX device for additional authentication.Which type of user authentication is configured?（）

单项选择题 Your task is to provision the Junos security platform to permit transit packets from the Private zone to the External zone by using an IPsec VPN and log information at the time of session close.Which configuration meets this requirement?（）