Which sdlc approach does the following scenario most likely model?

an order-and-configuration software system is enhanced every four months.

v-model
spiral model
waterfall model
rapid application development (rad) model

Who can provide you with a new password when you have forgotten your old one? your provide you with a new password in case you forget your old one.

The song about casey jones a railroad engineer who gives his life on the job would most likely gall under the folk song category of? a-work song b-nonsense song c-religious song d-ballad

Jason is working on a microsoft excel worksheet and he wants to create a print preview shortcut. his teacher asks him to access the customization option to create the new shortcut. which two tabs should jason select to place the print preview shortcut on the worksheet toolbar? a. new tab (custom) and new group (custom) b. new file tab (custom) and new tab (custom) c. new custom group and new command d. new custom tab and new command