Define network attached storage (NAS) and compare it to a storage area network (SAN).
What will be an ideal response?
NAS is essentially a dedicated file server that has its own file system and typically uses hardware and software designed for serving and storing files. While a SAN shares a fast, low-level interface that the OS can treat just like it was a disk, the NAS-because it has its own internal file system-has to perform filesystem work for all of its clients. While the simplicity and low price of a NAS make it attractive for some uses, these performance issues limit its utility in high-performance virtualization clusters.
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A recursive solution that finds the factorial of n always reduces the problem size by ______ at each recursive call.
a) 1 b) 2 c) half d) one-third
Which of the following statements about Java Class Libraries is false:
a. Java class libraries consist of classes that consist of methods that perform tasks. b. Java class libraries are also known as Java APIs (Application Programming Interfaces). c. An advantage of using Java class libraries is saving the effort of designing, developing and testing new classes. d. Java class libraries are not portable