adplus-dvertising
frame-decoration

Question

How are breakpoints usually set in a program by a debugger?

a.

By replacing the instruction at the breakpoint with an int 3 instruction

b.

By setting a hardware breakpoint in the processor

c.

Both a and b

d.

None of the above

Posted under Reverse Engineering

Answer: (a).By replacing the instruction at the breakpoint with an int 3 instruction Explanation:Debuggers usually set breakpoints in a program by replacing the instruction at the breakpoint with an int 3 instruction.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. How are breakpoints usually set in a program by a debugger?

Similar Questions

Discover Related MCQs

Q. How do hardware breakpoints differ from software breakpoints?

Q. What is the single-step interrupt?

Q. What is IsDebuggerPresent API?

Q. What does IsDebuggerPresent API access to determine whether a user-mode debugger is attached?

Q. Why is directly calling IsDebuggerPresent not effective against reversers?

Q. How can the effectiveness of IsDebuggerPresent API be improved as an antidebugging measure?

Q. How many lines of assembly code does the implementation of IsDebuggerPresent API consist of?

Q. What is the disadvantage of embedding this code sequence within a program?

Q. What is IsDebuggerPresent?

Q. How does IsDebuggerPresent work?

Q. Why is calling IsDebuggerPresent not very effective against reversers?

Q. How can IsDebuggerPresent be implemented intrinsically?

Q. What is the disadvantage of implementing IsDebuggerPresent intrinsically?

Q. How likely are the internal offsets in the NT data structure to change?

Q. What is required to incorporate assembly language code into a program?

Q. What is the SystemKernelDebuggerInformation request code used for?

Q. What is the data structure returned by the SystemKernelDebuggerInformation request?

Q. What should be checked to determine whether a kernel debugger is attached to the system using SystemKernelDebuggerInformation?

Q. What is the potential risk of detecting the presence of a kernel debugger?

Q. What is the Single-Step Interrupt used for in NuMega SoftICE?