EX342 Exam Dumps - Reliable Way to Pass and Get Certified

EX342 Exam Dumps – Reliable Way to Pass and Get Certified

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September 3, 2025

If you are looking for a reliable and comprehensive way to prepare for your EX342 certification exam, look no further than EX342 exam questions. These EX342 exam dumps questions are designed to help you assess your knowledge, identify your strengths and weaknesses, and improve your chances of passing the exam on the first try. These EX342 dumps questions cover all the topics and concepts that are essential for the EX342 exam, so you can be sure that you are fully prepared. Test RedHat EX342 free dumps below.

Page 1 of 8

1. A system fails to detect PCIe cards after an upgrade.

How do you verify BIOS and OS-level PCIe detection?

See the Explanation.

2. How do you log kernel scheduler activity using SystemTap?

See the Explanation.

3. A unit file is failing to start with “Unit not found.” How do you verify its installation and fix the systemd unit path?

See the Explanation.

4. You need to resize an existing LVM volume and its file system.

How do you safely increase the size?

See the Explanation.

5. Users can log in but their group memberships are missing.

How do you troubleshoot LDAP group resolution?

See the Explanation.

6. A server cannot access the internet.

How do you verify default gateway settings and correct them if misconfigured?

See the Explanation.

7. You suspect ARP problems on the LAN.

How do you monitor and inspect ARP traffic?

See the Explanation.

8. An engineer needs to consult Red Hat's official documentation to check kernel tuning parameters.

How do you locate and verify this information online and offline?

See the Explanation.

9. User login fails with “authentication token manipulation error”.

How do you fix it?

See the Explanation.

10. Your DNS lookup is slow.

How do you test DNS resolution performance?

See the Explanation.

Page 2 of 8

11. You encounter "Error: rpmdb open failed".

How do you safely rebuild the RPM database?

See the Explanation.

12. You are asked to verify and switch the system’s default boot target.

How do you accomplish this?

See the Explanation.

13. You need to monitor only ICMP traffic to debug ping-related issues.

How do you use tcpdump for this?

See the Explanation.

14. You need to inspect which module is using a particular device file (e.g., /dev/snd/pcmC0D0p).

How can you trace this?

See the Explanation.

15. You need to ensure that hostname resolution works even if DNS fails.

What is your backup approach?

See the Explanation.

16. The /home filesystem is reporting superblock corruption.

How do you find and use an alternate superblock with fsck?

See the Explanation.

17. Your task is to identify recent changes made to configuration files across the system.

How can you trace this effectively?

See the Explanation.

18. You need to test connection stability over time.

How do you use ping with logging to monitor drops?

See the Explanation.

19. You want to confirm whether Kerberos is working.

How do you test it manually?

See the Explanation.

20. A user reports application failures with “Permission denied”.

How do you confirm if SELinux is blocking it?

See the Explanation.

Page 3 of 8

21. You want to export the complete list of installed packages on a system.

How do you do it for replication or backup?

See the Explanation.

22. You are asked to collect CPU, memory, I/O, and network usage in real-time for analysis.

What tools and steps will you use?

See the Explanation.

23. You want to check if any critical system files have been changed or deleted since installation.

How do you verify this?

See the Explanation.

24. You need to detect if a process is allocating excessive memory pages.

How can you monitor this in real-time?

See the Explanation.

25. You are asked to load a custom kernel module named mydriver.ko for a hardware device.

How do you load it manually and verify that it's functioning?

See the Explanation.

26. You want to list all manually installed packages.

How do you do this on RHEL?

See the Explanation.

27. A binary fails with cannot open shared object file.

How do you resolve this missing dependency error?

See the Explanation.

28. You suspect a DNS issue and want to capture DNS requests and responses.

How do you filter this using tcpdump?

See the Explanation.

29. You need to determine the SELinux context of a file used by an application.

How do you do it?

See the Explanation.

30. How do you analyze kernel crash dump with the crash tool for active processes at crash time?

See the Explanation.

Page 4 of 8

31. After replacing a motherboard, the NIC name has changed.

How do you rename it back to the original name (e.g., eth0)?

See the Explanation.

32. Your system boots into rescue mode due to a corrupted initramfs.

How can you regenerate it and restore boot?

See the Explanation.

33. You want to find all files labeled with the wrong SELinux context.

How do you scan and fix them?

See the Explanation.

34. SystemTap script fails with permission error.

How do you allow non-root execution safely?

See the Explanation.

35. A custom script is being blocked by SELinux.

How do you generate a custom policy to allow it?

See the Explanation.

36. Your web server cannot access a directory due to SELinux.

How do you permanently fix the context?

See the Explanation.

37. How do you generate a SystemTap module that logs syscalls from a specific user?

See the Explanation.

38. You are troubleshooting a proprietary app that fails with symbol not found errors.

How can you verify the symbols in the linked libraries?

See the Explanation.

39. A VG reports “partial mode” after one PV was removed.

How do you correct this?

See the Explanation.

40. You lost root access due to a forgotten password.

How can you reset it and regain control?

See the Explanation.

Page 5 of 8

41. Kerberos is enabled, but SSH authentication fails.

How do you debug this?

See the Explanation.

42. While updating, Yum reports conflicting packages.

How do you resolve version conflicts manually?

See the Explanation.

43. A client system cannot SSH into a server.

How do you identify the issue?

See the Explanation.

44. A user's Kerberos ticket isn't renewing automatically.

How do you configure automatic renewal?

See the Explanation.

45. The system fails to boot and reports a corrupted root file system.

How do you recover it using fsck?

See the Explanation.

46. You suspect the RPM database is corrupted after a system crash.

How do you restore it from backup?

See the Explanation.

47. You need to trace where a packet is dropped en route to an external site.

What command and steps help?

See the Explanation.

48. A web server is not reachable via HTTP, but ping works.

How do you isolate the issue?

See the Explanation.

49. You’re tasked with profiling memory usage of a running application suspected of leaking memory.

Which tools do you use?

See the Explanation.

50. You need to gather information about all system services and their statuses to check for failed services.

What is the most efficient method?

See the Explanation.

Page 6 of 8

51. An admin changed permissions and now your web app fails.

How do you verify and restore SELinux labels?

See the Explanation.

52. How do you verify whether a firewall is blocking a specific port (e.g., 8080)?

See the Explanation.

53. An application crashes with a segmentation fault.

How do you use gdb to find the exact line causing the crash?

See the Explanation.

54. Your system fails to connect to an iSCSI target at boot.

How do you verify and fix the iSCSI session?

See the Explanation.

55. You want to check if an application opens too many files.

How do you monitor open file descriptors?

See the Explanation.

56. A DNS name is not resolving.

How do you troubleshoot DNS issues on a RHEL server?

See the Explanation.

57. A system fails to boot into graphical.target and remains in emergency mode. You suspect a service failure is responsible.

How do you identify and fix the failing service?

See the Explanation.

58. You are asked to trace memory allocations of an application.

How do you use strace for that?

See the Explanation.

59. You removed a service but it still attempts to start at boot.

How do you completely clean up the remnants?

See the Explanation.

60. You accidentally deleted an LVM logical volume.

How can you attempt recovery?

See the Explanation.

Page 7 of 8

61. How do you compile and install a basic SystemTap module?

See the Explanation.

62. A static IP configuration was set, but no traffic is flowing.

How do you confirm and fix the configuration?

See the Explanation.

63. A PV shows as “unknown” during pvscan.

How can you recover it?

See the Explanation.

64. You want to verify the GPG signature of a downloaded RPM.

How do you validate its authenticity?

See the Explanation.

65. A DHCP server is not assigning IP addresses.

How do you test and identify the issue on the client?

See the Explanation.

66. You need to install a package but are on a system with no internet.

How do you handle dependencies using a local repo or DVD?

See the Explanation.

67. You get “Error: rpmdb: BDB0060 PANIC: fatal region error detected.” How do you recover the RPM DB safely?

See the Explanation.

68. A user reports slow system performance. You are tasked to analyze CPU and memory usage for the last hour.

How can you collect this data?

See the Explanation.

69. Your NIC is not functioning because the required module is not autoloaded.

How do you find the matching module and enable it?

See the Explanation.

70. You’ve created a new LVM setup, but it doesn't survive reboot.

How do you ensure LVs are activated at boot?

See the Explanation.

Page 8 of 8

71. How do you write a SystemTap script to log every open() syscall?

See the Explanation.

72. You need to disable and re-enable a NIC temporarily.

How do you do this safely?

See the Explanation.

73. You want to identify what kernel version your system is running and compare it against the latest available from Red Hat.

What steps will you follow?

See the Explanation.

74. A user reports that after enabling a service, the system hangs at boot.

How can you temporarily prevent it from starting to troubleshoot?

See the Explanation.

75. You are auditing a system and must gather system boot and shutdown times over the past week.

How can you do this efficiently using built-in tools?

See the Explanation.

76. How do you list current SELinux denial logs in human-readable format?

See the Explanation.

77. You want to test port connectivity from client to server without telnet.

What’s the alternative method?

See the Explanation.

78. How do you safely test a new SystemTap script for errors before live use?

See the Explanation.

79. During troubleshooting, your team wants a full snapshot of running processes, memory, and open files.

How do you collect this all-in-one snapshot?

See the Explanation.

80. You want to check if an application has memory leaks over time.

How do you use pmap to identify that?

See the Explanation.

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EX342 Exam Dumps – Reliable Way to Pass and Get Certified

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