After modifying the /etc/default/grub file, what command should be run to rebuild the grub config files?

The GNU GRUB (or just GRUB) in Linux that stands for GRand Unified Bootloader is a boot loader package that supports multiple operating systems on a computer. During boot-up, the user can select the operating system to run. Once user is modifying the /etc/default/grub file, grub-mkconfig is the command should be run to rebuild the grub configured files.

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability

Apresentation program is a software package used to display information in the form of a slide show. it has three major functions: an editor that allows text to be inserted and formatted, a method for inserting and manipulating graphic images, and a slide-show system to display the content.