Explanation
Optical drive and HDD are the examples of storage devices that have a spinning disk among the given options.
A spinning disk is a component of a storage device that rotates at high speed to store and access data on its surface. A spinning disk is usually made of metal, glass, or plastic and coated with a magnetic material. A spinning disk has one or more read/write heads that move across the disk to read or write data on concentric tracks or sectors. An optical drive is a storage device that uses laser beams to read or write data on optical discs, such as CDs, DVDs, or Blu-ray discs. An HDD (hard disk drive) is a storage device that uses magnetic fields to read or write data on hard disks. References : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 38-39.

Explanation
An optical drive is a component that can accomplish the task of viewing company training videos from a DVD. An optical drive is a device that can read and write data from optical discs, such as CDs, DVDs, or Blu-ray discs. An optical drive uses a laser beam to access the data stored on the disc. An optical drive can play video or audio files from optical discs, as well as install software or store data.
A hard disk drive (HDD) is a component that can store large amounts of data on magnetic platters, but it cannot read or write data from optical discs. A solid state drive (SSD) is a component that can store data on flash memory chips, but it cannot read or write data from optical discs. A flash drive is a component that can store data on flash memory chips and connect to a USB port, but it cannot read or write data from optical discs.

A postal code is a string of alphanumeric characters that identifies a specific location. A string data type is used to store text or character data, such as names, addresses, or postal codes. A float data type is used to store decimal numbers, such as prices or weights. A boolean data type is used to store logical values, such as true or false. An integer data type is used to store whole numbers, such as counts or quantities. References: The Official CompTIA IT Fundamentals (ITF+) Student Guide (Exam FC0-U61), Chapter 6: Database Fundamentals1

A patent is used to protect intellectual property while requiring the owner to provide the public with working details of an invention or a process. A patent grants the owner the exclusive right to make, use, or sell the invention or process for a limited period of time, usually 20 years. A trademark is used to protect a name, symbol, logo, or slogan that identifies a product or service. A trademark grants the owner the exclusive right to use the mark to distinguish their product or service from others. A license is used to grant permission to use intellectual property under certain terms and conditions. A license does not transfer ownership of the intellectual property, but only grants limited rights to use it. A license can be revoked by the owner if the terms and conditions are violated. A copyright is used to protect original works of authorship, such as books, music, movies, or software. A copyright grants the owner the exclusive right to reproduce, distribute, perform, display, or create derivative works based on their original work. References: The Official CompTIA IT Fundamentals (ITF+) Student Guide (Exam FC0-U61), Chapter 8: Software Development Concepts

Explanation
DML stands for Data Manipulation Language, which is a category of commands used to extract information from a database, such as SELECT, INSERT, UPDATE, and DELETE. These commands allow a programmer to query, modify, and delete data from tables and views in a database. DDL stands for Data Definition Language, which is a category of commands used to create and modify the structure of a database, such as CREATE, ALTER, and DROP. These commands allow a programmer to define tables, views, indexes, and other objects in a database. DDR stands for Data Recovery Language, which is not a standard category of commands in SQL (Structured Query Language), the most common language for interacting with databases.
DLL stands for Dynamic Link Library, which is not related to databases at all. It is a file format that contains executable code and resources that can be used by multiple applications on Windows operating systems. References: CompTIA IT Fundamentals (ITF+) Study Guide: Exam FC0-U61, Second Edition, Chapter 4: Software Development Concepts, page 142