Model Answer / Key Points:
Ease of Learning (New Users):
- GUI is generally much easier for new users to learn (1 mark). Its visual nature, with icons and menus, provides cues and makes functionality discoverable without needing to memorise commands (1 mark).
- CLI has a steep learning curve for new users (1 mark). It requires memorisation of specific commands and syntax, which can be intimidating and error-prone for beginners (1 mark).

Efficiency (Experienced Users - Complex/Repetitive Tasks):
- CLI can be highly efficient for experienced users for complex or repetitive tasks (1 mark). Scripts can be written to automate sequences of commands, and experienced users can often perform actions faster by typing commands than by navigating GUI menus (1 mark).
- GUI might be less efficient for such tasks for experienced users, as it may involve multiple mouse clicks and navigation steps that cannot be easily automated in the same way as CLI scripts (1 mark - though some GUIs offer macros, CLI is generally superior for this).
(Award marks for clear comparison points and justifications for each interface in both contexts.)