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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.
Described virtual memory Ans: Data is to be stored in physical memory locations that have addresses different from those that specified by the program. The memory control circu
Q. How to Information transfer from one register to another? Information transfer from one register to another is designated in symbolic notation by a replacement operator. For
What is the function of in network access layer in TCP/IP protocol stack? Function of Network Access Layer: The network access layer is the lowest layer within Internet
Q. Define Point-to-point Communication? The simplest form of message is a point to point communication. A message is sent from the transmitting processor to a receiving process
Why do we need DMA? DMA is used to transfer the block of data directly among an external device and the main memory without the continuous intervention by the processor.
Q. Evaluation Stack Architecture? A stack is a data structure which implements Last-In-First-Out (LIFO) access policy. You can add an entry to the with a PUSH(value) as well as
Storing a word in Memory: That is similar process with fetching a word from memory. The required address is loaded into the MAR After that data to be written are lo
FDDI (Fiber Distributed Data Interconnect) is an example of? Fiber Distributed Data Interconnect is an illustration of token ring.
A logic gate is an electronic circuit that generates a typical output signal which depends on its input signal. Output signal of a gate is a general boolean operation of its input
Q. Convert the following into POS form 1. (AB + C + DC)(AB + BC + D) 2. WYZ + XYZ + W'X'Y + W'XYZ 3. XY + XZ + X'YZ' 4. (A+B'+C) (AB+AC') 5. F(A,B,C,D)=M(0,3,
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