Question: Which of the following is valid storage type?

Answer:

A pen drive, also known as a USB flash drive or a thumb drive, is a small portable storage device that uses flash memory to store data. It typically connects to a computer through a USB port and can be used to transfer files and data between devices. Pen drives are popular because of their small size, high storage capacity, and ease of use. They are often used to store and transfer personal files, documents, photos, music, and other types of data.

Pen drives are also commonly used as a backup storage solution and can be used to boot operating systems or run software applications. They have become an essential tool for many people and are widely used in both personal and professional settings.