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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.
What are the advantages of batch processing This has the advantage which jobs can be processed when computer resources are less busy (for example during the evening or at night
How many methods used to control traffic flowing into and out of the network by firewall? Firewalls utilize one or more of three ways to control traffic flowing into and out of
Elaborate the memory devices - Semiconductor memory All of the memory used as main store in a modern computer is applied as semiconductors fabricated on wafers of silicon. Sem
In which system field does the name of current gui status is there? The name of the present GUI STATUS is available in the system field SY-PFKEY.
Many physicists believe that the universe is governed by a single system. A system which is capable of describing the behaviour of the very large (stars and planets) and the very s
Matlab will run from sthelens, and only if sthelens is down, from cher, orsay or tiree. It runs on other machines too, but some of the other machines have older versions of the OS
Kirc hoff's Voltage Law The sum of all the voltage drops around a closed circuit loop will add to zero V1+(-V2)+(-V3)+(-V4)= 0
An off-hook signal will repeat for a/an duration. For a/an finite duration, an off-hook signal will repeat.
time to left (TTL) in transport layer
Enumerate about the Decimal Arithmetic Unit The user of the computer input data in decimal numbers and receives output in the decimal form. But a CPU with ALU can perform arith
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