QUESTION: 13

PAAS provides an application development and operating environment, including a database of middleware. The software below the server upper layer belongs to the PAAS layer.

KVM(LAAS)
MYSQL
CRM (SAAS)
JAVA

Answer(s): B,D

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When selecting a hard disk, you need to select the correct capacity according to the number of system slots and business requirements. The following statement about the capacity of the hard disk is correct.

NL SAS/SATA capacity is generally an integer multiple of 250G, 10K/15K SAS hard disk capacity-"generally an integer multiple of 3006
MLSAS/SATA capacity is generally an integer multiple of 2000 10K/15K SAS hard disk capacity-generally an integer multiple of 1T
NL SAS/SATA capacity is generally an integer multiple of 250G, and 10K/15K SAS hard disk capacity is generally an integer multiple of 500G
NL SAS/SAIA capacity is generally an integer multiple of 200G, 10K/15KJTS hard disk capacity is generally an integer multiple of 300G

Answer(s): D

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QUESTION: 15

Memory is one of the most important parts in a computer. What is wrong about the definition of memory is.

Memory, also known as main memory, is a directly addressed storage space of the CPU, made of semiconductor devices
Memory is relative to external memory, its main feature is fast access rate
Memory is also called memory storage, and its role is to backup and copy and permanently store the calculation data in the CPU to improve data reliability
When the computer is running, the CPU will transfer the data that needs to be calculated to the memory for operation. When the operation is completed, the CPU will transfer the results out. The operation of the memory also determines the stable operation of the computer.

Answer(s): B

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QUESTION: 16

The three types of operating systems divided by application areas are () server operating systems and (), where server operating systems generally refer to installations on mainframe computers. On the operating system, such as eb server, application server and database server.

embedded operating system
open source operating system
smart card operating system
Desktop operating system

Answer(s): A,D

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QUESTION: 16

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