多项选择题 You want to restrict access to a role based on the client machine from which the user is accessing the network.Which two role restrictions accomplish this goal? （）

多项选择题 You want to customize access to the corporate network so that agentiess users are instructed to obtain a certificatebefore accessing the network.Which two configurations solve this problem? （）

单项选择题 A company has completed two acquisitions over the previous year. Each of the acquired companies was allowed to keep its own independent authentication server. The network administrator has been asked to roll out the Junos Pulse Access Control Service to users within the original company along with each of the two acquired organizations.The administrator configures three authentication realms, one for each independent authentication server, and associates them all with a single sign-in policy. All of the client endpoints are running Junos Pulse on their Windows XP desktops. When a user signs in to the Junos Pulse Access Control Service, which statement is correct?（）