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Explain Protection mechanism.
Protection mechanism: The subsequent mechanisms are commonly utilized for protecting files having programs and data.
(a) Access controls lists (ACL's) (b) Capability lists (C- lists)
These lists are utilized to make sure that uses only access files that are explicitly authorized access. These files contain
(i) files created by a user herself/himself
(ii) files owned by others, for that a user process explicit access privileged granted through other owners.
The VLSI technology is still developing. More and more powerful microprocessors and more storage space now are being put in single chip. One question that we have still not conside
why impotant keys
State about CSMA/CA It belongs to a class of protocols known as multiple access methods. CSMA/CA stands for: Carrier Sense Multiple Access with Collision Avoidance. In
Q. Set up to Use parallel virtual machine? PVM employs two environment variables when starting and running. Each and every PVM user needs to set these two variables to employ P
SET 2I OF ALL INTEGERS WITH ZERO IS AN ABELIAN GROUP
What is sector sparing? Low-level formatting also sets aside spare sectors not visible to the operating system. The controller can be told to change each bad sector logically w
Define underflow and overflow. Underflow: If the result the arithmetic operation including n-bit numbers is too small to show by n-bits, underflow is said to occur. Overflow
This boils down to the concept of Binary digits. Take an array size of 64 for example. We begin from 0 and end at 63. We need 6 bits.But, if we were to begin from 1 and end at 64,
Explain about the e-commerce over extranets. Extranets are regarding “joining up” the supply chain-suppliers, distributors, resellers and customers are enabling business-to bus
Conventionally software has been written for serial computation in that programs are written for computers which have a single Central Processing Unit (CPU). Here the problems are
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