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Operating System
1081
Computer Science Fundamentals
998
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OS Mass-Storage Structures
What is the host controller?
controller built at the end of each disk
controller at the computer end of the bus
all of the mentioned
none of the mentioned
Author:
rikazzz
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OS Mass-Storage Structures
The header and trailer of a sector contain information used by the disk controller such as _________ and _________
main section & disk identifier
error correcting codes (ECC) & sector number
sector number & main section
disk identifier & sector number
Author:
rikazzz
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Computer Science Fundamentals
Which defines the role of software?
System design
Design
System engineering
Implementation
The answer is system engineering. System engineering defines the role of software.
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rikazzz
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Computer Science Fundamentals
A layer which is the binary data protocol layer.
stub layer
skeleton layer
remote layer
transport protocol
The transport protocol layer is the binary data protocol that sends remote object requests over the wire. A client is any remote application that communicates with these server objects.
Author:
rikazzz
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OS Distributed File Systems
In distributed systems, link and site failure is detected by ___________
polling
handshaking
token passing
none of the mentioned
Author:
rikazzz
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Computer Science Fundamentals
MIPS stands for?
Mandatory Instructions/sec
Millions of Instructions/sec
Most of Instructions/sec
Many Instructions / sec
MIPS stands for Millions of Instructions/sec. MIPS is a way to measure the cost of computing.
Author:
rikazzz
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OS Distributed File Systems
In distributed systems, election algorithms assumes that ____________
a unique priority number is associated with each active process in system
there is no priority number associated with any process
priority of the processes is not required
none of the mentioned
Author:
rikazzz
Comment
OS Protection
Access matrix model for user authentication contains _____________
a list of objects
a list of domains
a function which returns an object’s type
all of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
The architecture that uses a tighter coupling between the compiler and the processor is ____________
EPIC
Multi-core
RISC
CISC
EPIC stands for Explicitly parallel instruction computing. It has a tighter coupling between the compiler and the processor. It enables the compiler to extract maximum parallelism in the original code.
Author:
rikazzz
Comment
OS Distributed File Systems
What are the characteristics of transaction semantics?
Suitable for applications that are concerned about coherence of data
The users of this model are interested in the atomicity property for their transaction
Easy to implement in a single processor system
Write-back enhances access performance
Author:
rikazzz
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