A fitness monitor detects only movement (step counting)

When attempting to power on a Virtual Machine you observe the following error: Cannot open the disk '/vmfs/volumes/volume/vm/vm-000002.vmdk' or one of the snapshot disks it depends on. Which three actions will be the best solutions to address this problem? (Choose three.)

A. Verify that the virtual machine's disk files are present. B. Investigate the host and virtual machine log files. C. Verify the vmdk descriptor files and if required, recreate them. D. Delete the disk file preventing the power on operation. E. Migrate or register the virtual machine to a different host.

A _______ is a semaphore that takes on only the values of 0 and 1.

Fill in the blank(s) with the appropriate word(s).