Linux Memory Management Interview Questions

Linux Memory Management Interview Questions
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1. On x86-32 Linux, at which address the code segment of the program starts?
a) 0x00000000
b) 0x08048000
c) 0x80000000
d) 0xbfff0000
2. On x86-32 Linux, at which address the user stack resides normally?
a) 0x00000000
b) 0x3fff0000
c) 0x7fff0000
d) 0xbfff0000
3. A system has 512MB of physical memory. Which among the following is not a suitable virtual memory size for this system architecture?
a) 512MB
b) 260K
c) 4GB
d) None of the above
4. LRU stands for
a) Last received Unit
b) Least recently Used
c) Least recently usable
d) Lost Recoverd unit
5. Mm_struct maintains?
a) memory files
b) open files
c) pipe
d) active memory regions
6. Which sytem call can be used by a user process to lock a memory so that it cannot be swapped out?
7. Is page table per process entity?
a) Yes
b) No
8. Among these files which has an ELF format
a) shared objects
b) core
c) executables
d) all of the above
9. What is the use of strace command?
10. If one of the thread in multithreaded process is blocked on an I/O, which of the following is true?
a) The entire process with block if their is no kernel supported threads
b) Other threads of the process will continue to execute even if there is no kernel supported threads
c) It depends on specific implemenatation
d) All of the above

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