Which of the following IEEE 802.11 standards support working in the two frequency bands of 2.4GHz and 5GHz? (Multiple choice)

The login timeout function in VRP can only be set under the VTY interface.

Which of the following types does an IPV6 address contain? (Multiple choice)

The ACL configuration information of a certain router is shown in the figure, which of the following statements is correct?
#
acl number 2000
rule 5 permit source 192.168.1.1 0
rule 10 deny source 192.158.1.1 0
#

VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level.
Which level can run various business configuration and configuration commands but cannot operate the file system?