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Operating System
1081
Computer Science Fundamentals
998
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OS Protection
What are the characteristics of Cambridge CAP system as compared to Hydra system?
It is simpler and less powerful than hydra system
It is more powerful than hydra system
It is powerful than hydra system
It is not as secure as Hydra system
Author:
rikazzz
Comment
Computer Science Fundamentals
The devices that used to give single or multiple colored images and drawings are ____________
Monitors
Printers
Plotters
VDUs
Plotters are the devices which are used to give colored images. They use ink pens or ink jets for drawing. Pens of different colors and shades are used for shading and styling.
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following addressing method does the instruction, MOV AX,[BX] represent?
register indirect addressing mode
direct addressing mode
register addressing mode
register relative addressing mode
In register indirect addressing mode the address of the operand is stored in the register. Since the instruction specifies that the register used to refer to the address is accessed indirectly, it represents the register indirect addressing mode.
Author:
rikazzz
Comment
OS Memory Management
When the valid – invalid bit is set to valid, it means that the associated page ____________
is in the TLB
has data in it
is in the process’s logical address space
is the system’s physical address space
Author:
rikazzz
Comment
OS Deadlocks
One way to ensure that the circular wait condition never holds is to ____________
impose a total ordering of all resource types and to determine whether one precedes another in the ordering
to never let a process acquire resources that are held by other processes
to let a process wait for only one resource at a time
all of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
Parallel processing has single execution flow.
True
False
The statement is false. Sequential programming specifically has single execution flow.
Author:
rikazzz
Comment
Computer Science Fundamentals
You can expand the memory of some PDAs with ________ that can be inserted into the PDA.
hard disks
storage cards
pendrives
floppy disks
The answer is storage cards. You can expand memory of some PDAs with small storage cards that can be inserted into the PDA.
Author:
rikazzz
Comment
OS I/O Systems
A ________ is a full duplex connection between a device driver and a user level process.
Bus
I/O operation
Stream
Flow
Author:
rikazzz
Comment
Computer Science Fundamentals
Comment in COBOL is denoted by ________
*
/
//
;
Comment is denoted by asterisk. (*) It denotes the comment line. Hyphen – denotes continuation.
Author:
rikazzz
Comment
OS CPU Scheduling
The interval from the time of submission of a process to the time of completion is termed as ____________
waiting time
turnaround time
response time
throughput
Author:
rikazzz
Comment
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