内存也叫（）英文名为Main Memory。

若要显示内存状态，使用的命令是()。

A.ps

B.pstree

C.free

D.memory

清除内存中第一个字符为“A”的内存变量，应使用命令

A．RELEASE MEMORY

B．RELEASE ALL LIKEA*

C．RELEASE MEMORY LIKE A*

D．CLEAR MEMORY LIKE A*

A.Memory-page/sec

B.Memory-Page Faults/sec

C.Memory-pageread/sec

D.Memory-Cache Bytes

●OS can use (72) memory to run processes that require more main memory than is actually available.

(72)

A. virtual

B.imaginary

C.abstract

D.false

The processor manipulates data stored in main memory under the control of a(71)stored in main memory.

A．command

B．program

C．operation

D．code

A.Virtualize network and memory to LPARs.

B.Virtualize network and storage to LPARs.

C.Virtualize memory and processors to LPARs.

D.Virtualize storage and processors to LPARs.

The purpose of(66)is to enlarge the(67), the set of addresses a program can utilize. For example, it might contain twice as many addresses as main memory. A program using all of it, therefore, would not be able to fit in main memory all at once. Nevertheless, the computer could execute such a program by Copying into main memory those portions of the program needed at any given point during execution.

To facilitate copying(66)into real memory, the operating system divides it into pages, each of which contains a fixed number of addresses. Each page is stored on a disk until ii is needed. When the page is needed, the operating system copies it from disk to main memory, translating the(68)into real addresses. The process of translating virtual addresses into real addresses is called(69). The copying of virtual pages from disk to main memory is known as(70)or swapping.

A．fake memory

B．false memory

C．virtual memory

D．mendacious memory