3i Infotech Placement: Sample Questions 942 - 943 of 1245

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Question 942

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Describe in Detail

Essay▾

What is durability in DBMS?

Explanation

Understanding of Durability
  • Durability in databases is the one type of property that ensures transactions are saved permanently and do not accidentally disappear or get erased, even during a database crash.
  • Flushing the transaction՚s log records to non-volatile storage before acknowledging commitment that achieved by durability.
  • If you are buying something from an online shop, if he system crashes , your credit card is processed and the order is placed, then that order remains in place.
  • When acknowledging commitment- durability can be achieved by flushing the transaction՚s log records to non-volatile storage.

Question 943

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Describe in Detail

Essay▾

What is EGP (Exterior Gateway Protocol) ?

Explanation

Understanding of EGP
  • An obsolete routing protocol used for data exchange between neighbouring gateway hosts in autonomous systems.
  • Original routing protocol developed for communicating routing information between system on the internet
  • Used in research institutes, universities, government agencies, and private organizations.
  • No longer used because of poor support for multipath networking environments.
  • Replaced by Border Gateway Protocol, which provides additional capabilities.
  • Was based on periodic message exchange polling for neighbour reachability and poll commands to request update responses.
  • Used between hosts on the internet to exchange routing table information. .

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