Software Engineering

•The spiral lifecycle model is always better than the outdated waterfall model.

• True
• False

•Including the users/customers in the process of designing the architecture will yield a better product

• True
• False

•Refactoring is a risk: it incurs a cost now, in return for potential payoff later.

• True
• False

•It is possible for a single ”piece”, or part of the original file, to appear multiple times in a piece table.

• True
• False

•When the writes to a data structure has spatial locality ( they are nearby one another in memory), then they can be made faster.

• True
• False

•There exists datasets for which a hash table has O(n) performance for insertion, deletion, and searching – the same as for a linked list.

• True
• False

•The map in MapReduce is different from the map in a functional programming language.

• True
• False

•An advantage of a GUI is that it permits an experienced user to work faster.

• True
• False

•It is theoretically possible for testing to prove the absence of bugs.

• True
• False

Recall that the null object pattern performs a no-op at each method call where null would otherwise be dereferenced. One advantage is that this is more efficient than checking, at each method invocation, whether the receiver ( the this object on which the method is being invoked) is null.

• True
• False