________ is used to ensure that data is organized most efficiently

An incremental backup _________________

a. Backs up only those files and folders that have changed since the previous backup, and marks those files as having been backed up. b. Backs up only those files and folders that have changed since the previous backup, and does not mark those files as having been backed up. c. Backs up all files, but only marks those whose contents have changed. d. Backs up all files that have changed other than system files.

Consider _______ when designing for display on a mobile device.

a. small screen size b. font size c. contrast d. all of the above