DNA EXAM - SUPA FORENSICS QUESTIONS WITH DETAILED VERIFIED ANSWERS

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CS 159 EXAM #2 QUESTIONS WITH
DETAILED VERIFIED ANSWERS
An infinite loop is a logical error Ans: True

The only way to stop a program caught in an infinite loop is to shut down
your terminal software Ans: False

A nested loop is a repetitive process contained inside of another
repetitive process Ans: True

One approach to potentially make solving problems that require nested
loops easier is to separate each repetitive process into its own function
Ans: True

According to the course standards a for loop should only be used with
counter-controlled processes Ans: True

According to the course standards if all three expressions are not needed
in a for loop then you should instead make use of a while loop for your
pretest looping needs Ans: True

All while loops can be converted into for loops that abide by course
standards Ans: False

You can make of x++, x+=1, and x =x+1, interchangeably as the update
(third) expression for a for loop to increment the loop control variable
Ans: True

The gcc compiler as used on the guru.itap.purdue.edu server this
semester will permit a variable to be declared and initialized in the first
expression of a for loop Ans: False

The update expression of a for loop may only make user of the addition
or subtraction operator (includes ++, --, +=, =+, +, -) Ans: False

This for loop will iterate 10 times: for(i=0; i!=0; i/=10) Ans: True

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This for loop will iterate 5 times: for(i=12345; i!=0; i/=10) Ans: True

This for loop will iterate 6 times: for(i=1; i<=32; i*2) Ans: False

This short-circuit method of evaluating logical expressions does not apply
to loop control expressions Ans: False

Control-forcing statements such as break, continue, and the use of
multiple return statements in a user-defined function are prohibited by
course standards as mechanisms to terminate repetitive processes Ans:
True

The condition in a recursive function when which the recursive function
calls stop is known as the best case Ans: True

Recursion should not be user with event-controlled processes as the
result may be more function calls than the memory of the computer can
handle Ans: True

A large number of recursive function calls may result in a crash due to
running out of memory Ans: True

An iterative solution is one that is implemented using a looping construct
Ans: True

Recursive solutions may involve heavy use of the limited resources of the
computer because thy involve a potentially large number of function calls
Ans: True

Iterative solutions are always better than recursive ones Ans: False

The complement of x>3 is x<=3 Ans: True

The following two logical expressions are equivalent:

!(x<10)

and

x>=10 Ans: True