Exam SY0-501 topic 1 question 319 discussion

why do most of the questions have to be so damn confusing *face palm*

D: data-at-rest—Any data stored on media. It’s common to encrypt sensitive data-at-rest. data-in-use—Any data currently being used by a computer. Because the computer needs to process the data, it is not encrypted while in use. Gibson, Darril. CompTIA Security+ Get Certified Get Ahead: SY0-501 Study Guide (p. 543). Kindle Edition.

key - "encrypted data" = D. At-rest

Key words are: data stored on disk = data in use.

Data in use has a definition outlining “this is data being processed, read, or updated” I would assume that this means the data being written is “being processed”

Guys, don't bother with this one, as answer could be both B and D. It clearly need better description.

Correct Answer is D https://wiki.archlinux.org/index.php/Data-at-rest_encryption

https://www.professormesser.com/security-plus/sy0-501/states-of-data-2/ It's D. Data at rest

The data is being encrypted while it is being written... Data in Transit?

Once it's saved to disk, it would be At-Rest.

D is correct

Which of the following describes the encrypted data? This to me means what the data is in its encrypted state, not while it is being encrypted. Being encrypted is IN USE Already encrypted in the database means AT REST.

Data in use is an information technology term referring to active data which is stored in a non-persistent digital state typically in computer random-access memory (RAM), CPU caches, or CPU registers. Definitely not data-in-use. It is A or D, I am struggling with the grammar of the question

Data in use is an information technology term referring to active data which is stored in a non-persistent digital state typically in computer random access memory (RAM), CPU caches, or CPU registers. Data in transit is defined into two categories, information that flows over the public or untrusted network such as the internet and data which flows in the confines of a private network such as a corporate or enterprise Local Area Network (LAN). [1] Data in transit is also referred to as data in motion. Data at rest in information technology means inactive data that is stored physically in any digital form (e.g. databases, data warehouses, spreadsheets, archives, tapes, off-site backups, mobile devices etc.).

Being written to disk is "at-rest". In use would be data in memory.

D. At rest The question first describes data being written to disk and encrypted, which is a perfect example of data “in-use”. However it then says “which of the following describes the encrypted data” which is “at-rest”. Very sneaky!

Any thoughts as to why this explanation would back it DATA IN USE based on this explanation: I am going with in use based in the following: Data in use—this is the state when data is present in volatile memory, such as system RAM or CPU registers and cache. Examples of types of data that may be in use include documents open in a word processing application, database data that is currently being modified, event logs being generated while an operating system is running, and more. When a user works with data, that data usually needs to be decrypted as it goes from in rest to in use. The data may stay decrypted for an entire work session, which puts it at risk. However, some mechanisms, such as Intel Software Guard Extensions (https://software.intel.com/en-us/sgx/details) are able to encrypt data as it exists in memory, so that an untrusted process cannot decode the information.