title: 2PL, Rigorous vs Strict Model, Is there any benefit?
body: <p>In 2PL (two phase locking), what advantage(s) does the rigorous model have over  the strict model?</p>
  
  <p>I) There is no advantage over the strict model.</p>
  
  <p>II) In contrast to the strict model, it guarantees that starvation cannot occur.</p>
  
  <p>III) In contrast to the strict model, it guarantees that deadlock cannot occur.  </p>
  
  <p>IV) In contrast to the strict model, there is no need to predict data needed in the future.</p>
  
  <p>My note says all of the above are false. I am a bit confused. Can someone clarify for me why all of this is false?</p>