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Explain Garbage collection
In this method two passes are made over the memory to identify new areas. In the first pass it traverses all pointers pointing to allocated areas and marks the memory areas which are in use. The second pass finds out all unmarked areas and declares them to be free. The garbage collection overheads are not incremental. They are acquired every time the system runs out of free memory to allocate to new requests. Two major approaches to reuse free memory area in a heap are:
First-fit: Allocate the first hole which is big enough. Searching can start either at the starting of the set of holes or where the previous first-fit search ended. Searching is stopped when a free hole is found that is large enough
Best-fit: Allocate the smallest hole which is big enough; whole list is searched, unless ordered by size. This strategy generates the smallest leftover hole.
Object oriented modelling Object oriented modelling is entirely a new way of thinking about queries. This methodology is all about visualizing the things by using models organ
Q. Describe Loading Disk Operating System? Different version of DOS, such as 2.0, 3.0, 3.2, 4.0, 5.0, 6.0, 6.2, 6.22, 7.0, 7.2 are present. The newer versions have additional
Explain a macro Macro is a preprocessor directive, also called as macro definition takes the following general form: #define identifier string
Q. Working of Read-Only Memory? A ROM is fundamentally a memory or storage device in which a fixed set of binary information is stored. A block diagram of ROM is as displayed i
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Which two properties are on every validation control? Two properties are:- a) Control to validate b) Error Message.
How is conversion of data types done between ABAP/4 & external level? Conversion among the external layer and the ABAP/4 layer is completed in the SAP dialog manager DYNP.
Features of Supply Chain Management Supply Chain Management Consultancy's scope is extensive, and typically contains: 1. Sales order processing and customer service 2.
"Global business-to-consumer e-commerce sales will pass the 1 trillion euro ($1.25 trillion) mark by 2013, and the total number of Internet users will increase to approximately 3.5
Define the Firewall Design Policy A lower-level policy that describes how the firewall will handle prevention of access and filtering of services as defined in the above net
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