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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.
The Concept of Process Unofficially a process is a program in execution subsequent to the program has been loaded in the main memory. Though a process is more than just a progr
What is visibility give UML notation? Visibility refers to the ability of a process to reference a feature from another class and has possible valued of public, private, protec
Problem: (a) Accessibility can be classified as below: (i) Barrier-free design (ii) Web accessibility. Describe the importance of barrier free design and web accessibi
Q. Functions employed for messaging passing? The functions employed for messaging passing are: int MPI_Send(void *msgaddr, int count, MPI_Datatype datatype, int dest, int ta
Make a nested struct to store a person's name, address, and phone numbers. The struct should have 3 fields for the name, address, and phone. The address fields and phone fields wi
explain parallel database system
Q. Explain Bus Interface Unit? BIU (Bus Interface Unit) mainly interacts with system bus. It executes nearly all the activities relating to fetch cycle like: Computing
Give the details of excess 3 codes and gray code using four binary digits. Ans: Table of excess 3 codes and gray code using four binary digits Binary
Reg data type as Sequential element module reg_seq_example( clk, reset, d, q); input clk, reset, d; output q; reg q; wire clk, reset, d; always @ (posedge clk or
Which operations is performed more efficiently by doubly linked list than by singly linked list Deleting a node whose location is given.
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