Which of the following is true concerning triggers?
Options: You do not create them with SQL., They execute against only some applications that access a database., They have an event, condition, and action., They cannot cascade (cause another trigger to fire).
Options: Return an entire collection of elements including duplicates., Return a collection of elements without duplicates., Return a specific subset of elements using a given criteria., All of the above.
Which of the following is correct for a gated D-type flip-flop?
Options: The Q output is either SET or RESET as soon as the D input goes HIGH or LOW., The output complement follows the input when enabled., Only one of the inputs can be HIGH at a time., The output toggles if one of the inputs is held HIGH.
A network administrator wants to upgrade the IOS of a router without removing the image currently installed. What command will display the amount of memory consumed by the current IOS image and indicate whether there is enough room available to hold both the current and new images?
Options: show version, show flash, show memory, show buffers