Data on a standard CD is recorded ________
A) magnetically
B) as tiny bumps or flats into the CD
C) on the protective layer
D) in concentric circles
B
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Answer the following statements true (T) or false (F)
1) Windows has no way to support the encryption of entire volumes. 2) Cache memory reduces average memory access time by exploiting the principle of locality. 3) A key aspect of I/O is the use of buffers that are controlled by I/O utilities rather than by application processes. 4) Two of the most widely used approaches to improve disk I/O performance are disk scheduling and disk cache. 5) In the C-SCAN disk scheduling algorithm, the disk arm is required to move in one direction only until it reaches the last track or there are no more requests to service in that direction, then it reverses direction and the scan proceeds in the opposite direction in the same fashion.
A(n) ___ uses command words and grammar based on human languages to provide what computer scientists call a level of abstraction that hides machine language.
A. low-level language B. high-level language C. compiler D. interpreter
Sometimes it is advisable to offer a ________ app if there are numerous other apps with similar functionality.
A) freemium B) premium C) low-cost D) free
Data Execution Prevention (DEP) is a processor feature in Windows 10 that monitors processes to ensure that they do not access unauthorized memory spaces.
Answer the following statement true (T) or false (F)