003.01.91.Interview-Questions-Introductory-Concepts - EmbLogic https://www.emblogic.com/forum/categories/003-01-91-interview-questions-introductory-concepts/feed.rss Mon, 17 Aug 26 09:51:43 +0530 003.01.91.Interview-Questions-Introductory-Concepts - EmbLogic en-CA 20. Tracking Page Faults for Processes https://www.emblogic.com/forum/discussion/1620/20-tracking-page-faults-for-processes Sat, 01 Jun 2024 12:50:10 +0530 pravjot 1620@/forum/discussions 20. Tracking Page Faults for Processes

How can you monitor page faults for individual processes in Linux? Describe how you can use the `time`, `top`, and `ps` commands to view page faults. Provide an example command for each.

]]> 19. Understanding Page Faults https://www.emblogic.com/forum/discussion/1619/19-understanding-page-faults Sat, 01 Jun 2024 12:49:59 +0530 pravjot 1619@/forum/discussions 19. Understanding Page Faults
What are page faults in the context of memory management in Linux? Differentiate between minor and major page faults and explain their impact on system performance.
]]> 18. Monitoring System Memory Status https://www.emblogic.com/forum/discussion/1618/18-monitoring-system-memory-status Sat, 01 Jun 2024 12:48:23 +0530 pravjot 1618@/forum/discussions 18. Monitoring System Memory Status
How can you check the overall memory status of a Linux system? Explain the use of the `free` command and viewing `/proc/meminfo`.
]]> 17. Understanding Load Average https://www.emblogic.com/forum/discussion/1617/17-understanding-load-average Sat, 01 Jun 2024 12:48:10 +0530 pravjot 1617@/forum/discussions 17. Understanding Load Average
What is the load average in Linux, and what do the three load average numbers provided by the `uptime` command represent? How should these values be interpreted in terms of system performance?
]]> 16. Scheduling Priority and Nice Value https://www.emblogic.com/forum/discussion/1616/16-scheduling-priority-and-nice-value Sat, 01 Jun 2024 12:47:54 +0530 pravjot 1616@/forum/discussions 16. Scheduling Priority and Nice Value
What are the PR (priority) and NI (nice value) columns in the `top` command output? How do these values influence the scheduling of processes by the kernel?
]]> 15. Interpreting `time` Command Output https://www.emblogic.com/forum/discussion/1615/15-interpreting-time-command-output Sat, 01 Jun 2024 12:44:09 +0530 pravjot 1615@/forum/discussions 15. Interpreting `time` Command Output
What do the terms `real`, `user`, and `sys` mean in the output of the `time` command? How can you use these values to understand the performance of a process?
]]> 14. Using the `time` Command https://www.emblogic.com/forum/discussion/1614/14-using-the-time-command Sat, 01 Jun 2024 12:43:56 +0530 pravjot 1614@/forum/discussions 14. Using the `time` Command
Explain the differences between the built-in shell `time` command and the system utility `/usr/bin/time`. What are the key differences in the output provided by each?
]]> 13. Measuring CPU Time for Processes https://www.emblogic.com/forum/discussion/1613/13-measuring-cpu-time-for-processes Sat, 01 Jun 2024 12:43:42 +0530 pravjot 1613@/forum/discussions 13. Measuring CPU Time for Processes
How can you monitor CPU time for one or more specific processes using the `top` command? Provide the syntax and explain how it works.
]]> 12. Viewing Threads in Process Monitoring Tools How can you view thread information using the `ps` a https://www.emblogic.com/forum/discussion/1612/12-viewing-threads-in-process-monitoring-tools-how-can-you-view-thread-information-using-the-ps-a Sat, 01 Jun 2024 12:35:38 +0530 pravjot 1612@/forum/discussions 12. Viewing Threads in Process Monitoring Tools
How can you view thread information using the `ps` and `top` commands in Linux? Describe the steps and options required to display thread details in these tools.
]]> 11. Difference Between Single-Threaded and Multi-Threaded Processes https://www.emblogic.com/forum/discussion/1611/11-difference-between-single-threaded-and-multi-threaded-processes Sat, 01 Jun 2024 12:35:23 +0530 pravjot 1611@/forum/discussions 11. Difference Between Single-Threaded and Multi-Threaded Processes
What is the difference between single-threaded and multi-threaded processes in Linux? Discuss the advantages of using multiple threads within a process compared to using multiple processes.
]]> 10. Library Call Tracking with `ltrace` https://www.emblogic.com/forum/discussion/1610/10-library-call-tracking-with-ltrace Sat, 01 Jun 2024 12:35:05 +0530 pravjot 1610@/forum/discussions 10. Library Call Tracking with `ltrace`
How does `ltrace` differ from `strace`, and what are its limitations? Why might you need to filter the output of `ltrace`?
]]> 9. Tracing System Calls with `strace` https://www.emblogic.com/forum/discussion/1609/9-tracing-system-calls-with-strace Sat, 01 Jun 2024 12:30:45 +0530 pravjot 1609@/forum/discussions 9. Tracing System Calls with `strace`
What is the purpose of the `strace` command? Provide an example of how to use `strace` to troubleshoot a program that fails due to a missing file.
]]> 8. Dependency of `lsof` on Kernel Information https://www.emblogic.com/forum/discussion/1608/8-dependency-of-lsof-on-kernel-information Sat, 01 Jun 2024 12:30:32 +0530 pravjot 1608@/forum/discussions 8. Dependency of `lsof` on Kernel Information
Why is `lsof` highly dependent on kernel information, and what issues might arise after a distribution update?
]]> 7. Using `lsof` Effectively https://www.emblogic.com/forum/discussion/1607/7-using-lsof-effectively Sat, 01 Jun 2024 12:30:20 +0530 pravjot 1607@/forum/discussions 7. Using `lsof` Effectively
What are two basic approaches to using the `lsof` command? Provide examples of how you would use `lsof` to list open files in a specific directory and for a particular process ID.
]]> 6. Understanding `lsof` Output https://www.emblogic.com/forum/discussion/1606/6-understanding-lsof-output Sat, 01 Jun 2024 12:27:44 +0530 pravjot 1606@/forum/discussions 6. Understanding `lsof` Output
Explain the fields provided in the output of the `lsof` command. What information does each field represent?
]]> 5. Enhanced Process Monitoring with `atop` and `htop` https://www.emblogic.com/forum/discussion/1605/5-enhanced-process-monitoring-with-atop-and-htop Sat, 01 Jun 2024 12:27:32 +0530 pravjot 1605@/forum/discussions 5. Enhanced Process Monitoring with `atop` and `htop`
What additional features do `atop` and `htop` provide over the `top` command?
]]> 4. Top Program Keystrokes https://www.emblogic.com/forum/discussion/1604/4-top-program-keystrokes Sat, 01 Jun 2024 12:27:18 +0530 pravjot 1604@/forum/discussions 4. Top Program Keystrokes
List and describe at least five keystrokes used in the `top` program to interact with and modify its display.
]]> 3. Using `ps` and `top` Commands https://www.emblogic.com/forum/discussion/1603/3-using-ps-and-top-commands Sat, 01 Jun 2024 12:05:33 +0530 pravjot 1603@/forum/discussions 3. Using `ps` and `top` Commands
How does the `top` program improve upon the `ps` command for monitoring processes? What are some key features of `top`?
]]> 2. Role of the Kernel in Resource Allocation https://www.emblogic.com/forum/discussion/1602/2-role-of-the-kernel-in-resource-allocation Sat, 01 Jun 2024 12:05:19 +0530 pravjot 1602@/forum/discussions 2. Role of the Kernel in Resource Allocation
Describe the role of the kernel in allocating resources to processes. Why is fair resource allocation important?
]]> 1. Types of Hardware Resources https://www.emblogic.com/forum/discussion/1601/1-types-of-hardware-resources Sat, 01 Jun 2024 12:05:06 +0530 pravjot 1601@/forum/discussions 1. Types of Hardware Resources
What are the three basic kinds of hardware resources that processes vie for in a system? Explain each briefly.
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