When visitor needs to access the network through an account, which of the following methods can be used to access it? (Multiple choices)

In a WLAN network, intra-group isolation and inter-group isolation can be used at the same time.

The access control server is the implementer of the corporate security policy, responsible for implementing the corresponding access control in accordance with the security policy formulated by the customer's network(Allow, deny, leave or restrict).

The user access security solution is an "end-to-end" security architecture. The user access security framework includes three key components: terminal equipment, network admission equipment and admission server.

Check the policy delivered by the Agile Controller-Campus server on the switch as follows:
<SW>display acl all
Total nonempty ACL number is 3
Advanced ACL Auto PGM_OPEN_POLICY_3999 , 0 rule
Acl's step is 5
Ucl-group ACL Auto_PGM_U2 9996 , 1 rule
Acl's step is 5
rule 1 permit ip source ucl-group name Common_user destination ucl-group name Mail_Server(match-counter 0) Ucl-group ACL Auto_PGM_U1 9997 , 2 rules Acl's step is 5 rule 1 permit ip source ucl-group name VIP destination ucl-group name Mail_Server (match-counter 0) rule 2 permit ip source ucl-group name VIP destination ucl-group name Internet_WWW (match-counter 0) Ucl-group ACL Auto_PGM 9998 , 1 rule Acl's step is 5 rule 1 deny ip source ucl-group 0 (match-counter 0) Lid-group ACL Auto_PGM_PREFER_POLICY 9999 , 0 rule Acl's step is 5 Which of the following are correct for this strategy? (Multiple choices)