If AH and ESP are both required to protect data streams between IPsec peers, how many Security Associations
(SA) are required in total?

When using VRP, which of the following commands is used to configure the data link layer encapsulation type
of a serial interface as HDLC?

A client failed to transfer a file to the FTP server, but found the IP connectivity was without problem. The client
assumed that the problem was with the port configuration.
The blocking of which ports would likely cause this problem? (Choose two)

FTP may be used to upgrade a router’s VRP image.
Which of the following transmission modes should be used to achieve this?

An administrator discovered he/she was unable to use TFTP to transfer files to the router.
Which of the following describes the likely reason for this?

FTP and TFTP can be used to update the system file on Huawei routers. Which of the following statements are
correct? (Choose three)

An administrator wishes to implement new features in the network, but the VRP version of one AR2200 router
is out of date. The administrator needs to upgrade the VRP software.
Which of the following options regarding file transfer is false?

Which of following may be the reasons that cause Frame Relay PVC to work abnormally? (Choose three)

Which of the following commands can be used to display mapping relationship between network address and
DLCI?