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1 1 0 . What is the right definition of an operating system : A . It is the one program running some times on

110. What is the right definition of an operating system :
A. It is the one program running some times on the computer usually called the kernel
B. It is a software that manages the computer hardware and provides an environment for application programs to run
C. It is a program that acts as an intermediary between data and the computer hardware
D. It is some information processed at all times on the computer usually called the kernel
111. For an OS a Batch file is considered as one component of:
A. the security layer
B. the file management layer
C. Kernel (process manager)
D. User interface layer
112................ is one of the operating system functions :
A. user border
B. memory management
C. information management
D. Terminal management
113. The steps of invocation of application by OS include:
A. OS does not requests user input to identify application "file"
B. OS fetches instructions of application
C. OS loads the memory address of the application's starting instruction into the PC
D. OS analyses instructions of application
114. An Application designer considers OS as:
A. A set of models
B. A set of services
C. A set of system calls
D. A set of code lines
115. The mode bit is a bit not used :
A. to specify user mode and kernel mode
B. to differentiate when system is running user code or kernel code
C. to specify user mode and privileged mode
D. to specify only the user mode
116. An application developer thinks that OS is:
A. A set of facilities
B. A set of services
C. A set of forms
D. A set of system calls
117. A c++ language programmer identifies system call by using:
A. A number
B. the name of the wrapper of the system call(c++ statement)
C. The general name of API
D. The specific name of an API library
118. OS can't be invoked through:
A. signal interrupt
B. link
C. system call
D. Error
119................ is not one of the operating system functions :
A. Process management
B. Device management
C. Memory management
D. data management

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