What are two default Cisco IOS privilege levels? (Choose two.)
A . 0
B . 1
C . 5
D . 7
E . 10
F . 15
Answer: B,F
Explanation:
By default, the Cisco IOS software command-line interface (CLI) has two levels of access to commands: user EXEC mode (level 1) and privileged EXEC mode (level 15).
Source: http://www.cisco.com/c/en/us/td/docs/ios/12_2/security/configuration/guide/fsecur_c/scfpass.html