Answer:
D) can access main memory at the same time as the main CPU
Explanation:
DMA is short for Direct Memory Access, these controllers allow the device to transfer data directly to and from the memory modules without interfering with CPU processes. Therefore it can access main memory at the same time as the main CPU. Thus freeing up CPU processing power for other tasks while also retrieving the data necessary.
The correct answer is B.UPS
A UPS or Uninterruptable Power supply makes
sure that you have backup in case there is a power outage in your area. It
provides ample time for you to save all files before shut down.
Answer: data security
Explanation:
The company's authentication protocols and data encryption measures denotes data security.
Data security simply means protecting unauthorized people from having access to a particular data. This is done to prevent unauthorized access of important information or to prevent fraud. Some of the data security measures include data encryption, tokenization, hashing, etc.
install memory requires you to take off the bottom portion of the laptop.
This is known as DNS poisoning, so called because it 'poisons' the entries of the DNS with false information.
