Learn why performing a secure erase command is the best method to permanently wipe all data from a decommissioned SSD, as required for the CompTIA A+ Core 1 220-1101 exam. Understand how secure erase works and why it’s essential for data security and regulatory compliance.
Table of Contents
Question
A company needs to securely erase all data from a decommissioned SSD. What is the best method?
A. Low-level formatting
B. Running a chkdsk scan
C. Disk defragmentation
D. Performing a secure erase command
E. Deleting all files manually
Answer
D. Performing a secure erase command
Explanation
Unlike HDDs, SSDs require a secure erase command to completely wipe all data, as standard formatting does not remove data from flash memory cells.
The secure erase command is specifically designed to permanently remove all data from an SSD by resetting every memory cell to a blank state. This process is handled by the SSD’s controller and ensures that data is irretrievable, unlike standard formatting or file deletion, which may leave recoverable remnants due to the way SSDs manage storage and perform wear leveling. Secure erase commands can be issued using manufacturer utilities (such as Samsung Magician or Crucial Storage Executive), motherboard UEFI/BIOS tools, or universal utilities like Parted Magic.
Quick formats or manual file deletions do not actually erase the underlying data and are insufficient for secure data disposal. Overwriting SSDs multiple times is not only unnecessary but can reduce the lifespan of the drive and still may not reach all memory cells due to wear leveling. Secure erase is also recommended for regulatory compliance and to prevent data breaches when decommissioning drives.
For SSDs with built-in encryption, secure erase may also involve deleting the encryption key, rendering all stored data unreadable. If the data is highly sensitive or legal compliance is required, verify the secure erase process according to manufacturer and regulatory guidelines.
Performing a secure erase command is the most effective and recommended method for securely wiping all data from a decommissioned SSD, ensuring the data cannot be recovered by any means.
CompTIA A+ Core 1 220-1101 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the CompTIA A+ Core 1 220-1101 exam and earn CompTIA A+ Core 1 220-1101 certification.