State whether the following statement TRUE or FALSE.

The best-fit techniques for memory allocation ensures the memory will never be fragmented.

State whether the following statement TRUE or FALSE.

The $$LRU$$ page-replacement policy may cause thrashing for some type of programs.

State whether the following statement TRUE or FALSE.

The use of monitors ensures that no dead -locks will be caused.

Match the pairs in the following Question.
$$\eqalign{ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,List:\,{\rm I} \cr & \left( A \right)\,\,Criotical\,\,region \cr & \left( B \right)\,\,Wait/Signal \cr & \left( C \right)\,\,Working\,\,set \cr & \left( D \right)\,\,Deadlock \cr & \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,List:\,{\rm I}{\rm I} \cr & \left( p \right)\,\,Hoare's\,\,monitor \cr & \left( q \right)\,\,Mutual\,\,exclusion \cr & \left( r \right)\,\,\Pr inciple\,\,of\,\,locality \cr & \left( s \right)\,\,Circular\,\,Wait \cr} $$