CISC 3140 COURSE STUDY MODULE 2026
PRACTICE INSTRUCTION COMPLETE
PROBLEMS AND RESPONSES MANUAL
How might Backus-Naur form be used in a business programming
situation? Answer: To specify input and output syntax for things like
correct input enters for fields within firms, for business application.
⫸ In which country was the Therac-25 manufactures? Answer:
Canada
⫸ Recall that re-entrant code is code that does not modify itself.
Give one example of what this makes possible that would not be
possible otherwise. Answer: It allows multiple users to use code at
the same time.
⫸ Why would you use the add subcommand of Subversion? Answer:
It puts files under version control.
⫸ Even though the Java language itself has no graphics facility, it is
often considered a language of choice for graphic programming.
Why? Answer: Because it has many libraries for graphics.
⫸ When is an agile programming a programming methodology of
choice? Answer: Firefighting
, ⫸ At what point in the programming process should a programmer
begin writing comments? Answer: Before they start writing code.
⫸ How is the programming methodology of successive refinement
related to OOP? Answer: You can assign each refinement to a class.
⫸ Why must global variables be considered "poison"? Answer:
Because they can modify only part pf the program and make it
difficult to detect errors.
⫸ What is the purpose of an X-server? That is, what does an X-
server do when it is in use? Answer: It displays/reorders graphics,
essentially it provides the GUI.
⫸ What is the difference between declarative and imperative
language? Answer: Declarative - specify what you want.
Imperative - specifies how to get what is wanted.
⫸ What is the function of the "little old lady" of the programming
group (for what is this person responsible)? Answer: Takes care of a
nasty little details.
⫸ There are a number of different types of tools available to assist in
debugging and testing a program. What is one such type of program?
(You need not name a specific example of such a tool; it is sufficient
to say what it does, but you may name such a tool if you wish).
Answer: GNU debugger - GDB which keep record of bugs and fixes.
PRACTICE INSTRUCTION COMPLETE
PROBLEMS AND RESPONSES MANUAL
How might Backus-Naur form be used in a business programming
situation? Answer: To specify input and output syntax for things like
correct input enters for fields within firms, for business application.
⫸ In which country was the Therac-25 manufactures? Answer:
Canada
⫸ Recall that re-entrant code is code that does not modify itself.
Give one example of what this makes possible that would not be
possible otherwise. Answer: It allows multiple users to use code at
the same time.
⫸ Why would you use the add subcommand of Subversion? Answer:
It puts files under version control.
⫸ Even though the Java language itself has no graphics facility, it is
often considered a language of choice for graphic programming.
Why? Answer: Because it has many libraries for graphics.
⫸ When is an agile programming a programming methodology of
choice? Answer: Firefighting
, ⫸ At what point in the programming process should a programmer
begin writing comments? Answer: Before they start writing code.
⫸ How is the programming methodology of successive refinement
related to OOP? Answer: You can assign each refinement to a class.
⫸ Why must global variables be considered "poison"? Answer:
Because they can modify only part pf the program and make it
difficult to detect errors.
⫸ What is the purpose of an X-server? That is, what does an X-
server do when it is in use? Answer: It displays/reorders graphics,
essentially it provides the GUI.
⫸ What is the difference between declarative and imperative
language? Answer: Declarative - specify what you want.
Imperative - specifies how to get what is wanted.
⫸ What is the function of the "little old lady" of the programming
group (for what is this person responsible)? Answer: Takes care of a
nasty little details.
⫸ There are a number of different types of tools available to assist in
debugging and testing a program. What is one such type of program?
(You need not name a specific example of such a tool; it is sufficient
to say what it does, but you may name such a tool if you wish).
Answer: GNU debugger - GDB which keep record of bugs and fixes.
