Free EN0-001 Web TestEngine Demo

Q24 Single choice

In a system using the Security Extensions, how does the Secure Monitor execute a switch from Secure to Non-secure state?

A
Encrypts Secure register contents, sets the NS bit in SCTLR and branches directly to Normal world code
B
Saves Secure register contents, sets all registers to zero, sets the NS bit in SCTLR and branches directly to Normal world code
C
Saves Secure register contents, loads Non-secure ones from memory, sets the NS bit in SCTLR and performs an exception return
D
Sets the NS bit in SCTLR and performs an exception return - all registers are banked in hardware and switched automatically

EN0-001 Web TestEngine demo