QUESTION 129 When does a router automatically enter setup mode? when a router component fails POST 0 when it can not locate an IOS image 0 when a configuration file can not be located when directed to enter setup by a configuration file QUESTION 130 If a router us unable to find a valid IOS image in other locations, what is the default last resort location for loading an IOS? Flash O ROM TFTP NVRAM QUESTION 131 Boot system commands tell a router to search the most common locations for a valid lOs image. Where are the boot system commands stored? O NVRAM RAM FLASH O ROM