31. Which command is used to upgrade an IOS on a Cisco router?

A. copy tftp run
B. copy tftp start
C. config net
D. copy tftp flash

32. If you wanted to delete the configuration stored in NVRAM, what would you type?

A. erase startup
B. erase nvram
C. delete nvram
D. erase running

33. What protocols are used to configure trunking on a switch?

1.  VLAN Trunking Protocol
2.  VLAN
3.  802.1Q
4.  ISL

A. 1 and 2
B. 3 and 4
C. 1 only
D. 2 only