1. Which GDB command prints the value of a variable in hex.
a) print/x
b) print/h
c) print/e
d) none of the mentioned
Answer: A
Explanation:
None
2. Which GDB command interrupts the program whenever the value of a variable is modified and prints the value old and new values of the variable?
a) watch
b) show
c) trace
d) none of the mentioned
Answer: A
Explanation:
None
3. Which GDB command produces a stack trace of the function calls that lead to a segmentation fault?
a) trace
b) backtrace
c) forwardtrace
d) none of the mentioned
Answer: B
Explanation:
None
.
4. The specific break point can be deleted by _____ command in GDB.
a) delete
b) del
c) remove
d) none of the mentioned
Answer: A
Explanation:
None
5. The “step” command of GDB
a) executes the current line of the program
b) stops the next statement to be executed
c) executes the current line of the program & stops the next statement to be executed
d) none of the mentioned
Answer: C
Explanation:
None
6. Which GDB command reloads the debugging information?
a) file
b) reload
c) debug
d) none of the mentioned
Answer: A
Explanation:
None
7. GDB can be used
a) to find out the memory leakages
b) to get the result of a particular expression in a program
c) to find the reason of segementation fault
d) all of the mentioned
Answer: D
Explanation:
None
8. Which GDB command can be used to put a breakpoint at the beginning of the program?
a) b main
b) b start
c) break
d) none of the mentioned
Answer: A
Explanation:
None
9. To put the breakpoint at the current line ____ command can be used?
a) b
b) break
c) both b and break
d) none of the mentioned
Answer: C
Explanation:
None
10. We can list all the breakpoint in GDB by the command
a) printf
b) print
c) show
d) none of the mentioned
Answer: A
Explanation:
None
