Answer :
Final answer:
The order of display for banners on a router during a telnet session, when all three - exec, motd, and login - are configured, is: motd, login, exec.
Explanation:
When establishing a telnet session with a router, the order in which the banners are displayed if all three types - exec, motd, and login - are configured is: Message of the Day (motd), login, and exec. Firstly, the Message of the Day (motd) banner is displayed immediately after a connection is established. Secondly, the login banner is shown before the user is authenticated whereas the exec banner is displayed after successful user authentication.
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