CIS2750 Midterm Exam Questions With
Correct Answers 100% Guaranteed Pass.
-o, -Wall, -pedantic, -std=c99 in makefiles what do each of these do - Answer✔-o: names the
executable/output file
-Wall: activates all warnings
-pedantic: really picking with warnings
-std=c99: uses c99 standard for compiling
-E in makefile - Answer✔processor translates directives into more c code, inserts all code from
stdio.h
-c in makefile - Answer✔compiler converts c code into object code
makefile linker - Answer✔connects object code to standard or non standard libraries
how to link and create libraries in makefile - Answer✔link library -l(name of library)
-L. provides path to library that isn't in defaults
-fPIC in makefile - Answer✔creates position independent code, doesn't assume where in
memory your code will be
-shared in makefile - Answer✔creates a shared library
.so
what does export LD_LIBRARY_PATH='pwd' do - Answer✔tells os where the .so file is at
runtime
advantages of making - Answer✔makes repeated compilation easier
all in makefile - Answer✔lists everything you want the make command to create by default
clean in makefile - Answer✔deletes intermediate files
make file rule format - Answer✔target: dependencies
command
target: what you want to create
1|Page
, dependencies: what you need to run command
command any unix command (gcc or clang)
qsort - Answer✔function that sorts an array of nell objects, intial member is pointed to by the
base, size is specified by the width
contents of array base are sorted in ascending order according to comparison function pointed to
by function pointers which requires two arguments the objects being compared
why does qsort use function pointers - Answer✔generic sorter, don't have to specify types, can
pass in any type of object
are scripting languages interpreted or compiled and why - Answer✔interpreted because allows
for rapid development, and change
how does python use compliation and interpretation - Answer✔uses combination of compilation
and interpretation,
source code is converted to byte code (similar to compliation)
byte code is executed by an interpreter
improves performance over purely interpreted systems
how to scripting languages interact with other programs - Answer✔combines functionality of
other programs and acts as glue
extending - Answer✔external program and libraries being used to increase the functionality of
the scripting language (stdin/stdout)
dynamic typing - Answer✔system manages types of variables without programmers explicit
input of type
problems of dynamic typing - Answer✔mismatches when a variable is assigned a type thats not
expected
if varaible is misspelled two different variables existing when one was intended
Memory Management in scripting languages - Answer✔automatic memory management and
garbage collections
why are scripting languages object oriented - Answer✔difficult to manage and write larger
programs and using OOP is an attempt to fix the problem
What OOP concepts does python allow - Answer✔can create multiple name spaces (scope)
ploymorphism
operator overloading
multiple inheritance
2|Page
Correct Answers 100% Guaranteed Pass.
-o, -Wall, -pedantic, -std=c99 in makefiles what do each of these do - Answer✔-o: names the
executable/output file
-Wall: activates all warnings
-pedantic: really picking with warnings
-std=c99: uses c99 standard for compiling
-E in makefile - Answer✔processor translates directives into more c code, inserts all code from
stdio.h
-c in makefile - Answer✔compiler converts c code into object code
makefile linker - Answer✔connects object code to standard or non standard libraries
how to link and create libraries in makefile - Answer✔link library -l(name of library)
-L. provides path to library that isn't in defaults
-fPIC in makefile - Answer✔creates position independent code, doesn't assume where in
memory your code will be
-shared in makefile - Answer✔creates a shared library
.so
what does export LD_LIBRARY_PATH='pwd' do - Answer✔tells os where the .so file is at
runtime
advantages of making - Answer✔makes repeated compilation easier
all in makefile - Answer✔lists everything you want the make command to create by default
clean in makefile - Answer✔deletes intermediate files
make file rule format - Answer✔target: dependencies
command
target: what you want to create
1|Page
, dependencies: what you need to run command
command any unix command (gcc or clang)
qsort - Answer✔function that sorts an array of nell objects, intial member is pointed to by the
base, size is specified by the width
contents of array base are sorted in ascending order according to comparison function pointed to
by function pointers which requires two arguments the objects being compared
why does qsort use function pointers - Answer✔generic sorter, don't have to specify types, can
pass in any type of object
are scripting languages interpreted or compiled and why - Answer✔interpreted because allows
for rapid development, and change
how does python use compliation and interpretation - Answer✔uses combination of compilation
and interpretation,
source code is converted to byte code (similar to compliation)
byte code is executed by an interpreter
improves performance over purely interpreted systems
how to scripting languages interact with other programs - Answer✔combines functionality of
other programs and acts as glue
extending - Answer✔external program and libraries being used to increase the functionality of
the scripting language (stdin/stdout)
dynamic typing - Answer✔system manages types of variables without programmers explicit
input of type
problems of dynamic typing - Answer✔mismatches when a variable is assigned a type thats not
expected
if varaible is misspelled two different variables existing when one was intended
Memory Management in scripting languages - Answer✔automatic memory management and
garbage collections
why are scripting languages object oriented - Answer✔difficult to manage and write larger
programs and using OOP is an attempt to fix the problem
What OOP concepts does python allow - Answer✔can create multiple name spaces (scope)
ploymorphism
operator overloading
multiple inheritance
2|Page
