How light TP monitors allow distributed applications
Explain how light TP monitors allow distributed applications based on RPC to have transaction properties.
Expert
A light TP-Monitor extends the transactional capabilities of a database beyond the database domain. It gives the mechanisms and tools essential to build applications in which transactional guarantees are provided. The TP-monitor tries to encapsulate the services provided within transactional brackets. This entails RPC augmented with:
Transactional RPC: Implements RPC and enforces scheduling operations, transactional semantics accordingly.
Transaction manager: runs 2PC and takes care of the recovery operations.
Log manager: records each and every changes done by transactions so that a consistent version of the system can be reconstructed in case of failures.
Lock manager: a generic mechanism regulating access to shared data outside the resource managers.
Describe the theorem that a language L is recognized by a DFA if and only if L is illustrated by a regular expression.
I have a problem in NFA-DFA. Can somone give the Proof of the theorem of NFA-DFA equivalence ?
Explain DFA diagrams and DFA operation in brief ?
Define various Terminologies used in TOC ?
Define the term Regular expressions ?
What do you mean by Formal description of NFA operation ?
Let REGEXP be the language of valid regular expressions over {a, b}. That is, REGEXP is the set of all strings over the symbols Σ= {a, b, (,), U,*, ^} that are valid regular expressions. For example, the string “a (a U b)" is in REGEXP, whereas the string
What do you understand by the term Finite Automata ?
Give an algorithm that, given a grammar G = (V, Σ, R, S), decides whether the grammar G can derive the empty string.
18,76,764
1927395 Asked
3,689
Active Tutors
1448554
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!