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How optimization is achieved in DNS?
Two primary optimizations used in DNS and they are: replication and caching. All root servers is replicated; various copies of the server exist around the world. While a new site joins the internet, the site configures its local DNS server along with a list of root server. The site server uses any root server is most responsive at a provided point of time. Into DNS caching each server maintains a cache of names. When this looks up a new name, the server puts a copy of the binding in its cache. Before contacting other server to request a binding, the server checks its cache; when the cache have the answer the server uses the cached answer to produce a reply.
Explain the term- Hacking Use of passwords and ids to prevent illegal access to files. Also locking the computer itself or locking computer room can help here. Encryption s
Q. Show the Comparison of ASCII and EBCDIC? EBCDIC is an easier to employ code on punched cards due to BCD compatibility. But ASCII has some of major benefits on EBCDIC. These
What are coupling and cohesion and why are they important concepts in software design?
Explain the stack storage allocation model. In a stack-based allocation, all objects are allocated in last-in, first-out data structure and a stack. For example: Recursive subr
What is CTS and CLS? CLS stands for common language specification CTS stands for common type system.
Process: pid start time end time priority timeslice list of CPU bursts list of IO bursts (the number of IO burst will always be 1 less than the number of CPU
RDBMS relational database system - Relational databases are composed of relations and managed through relational operations, and governed through data integrity constraints.
What are called stalls? An alternative representation of the operation of a pipeline in the case of a cache miss gives the function performed by every pipeline stage in each cl
list and explain the contents of pcb
Potential of Parallelism Problems in the actual world differ in respect of the degree of natural parallelism inherent in the personal problem domain. Some problems may be simpl
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