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Oracle 1Z0-106 Certification Exam is designed for professionals who have experience in Oracle Linux 8 System Administration. 1z1-106 exam is structured to test the advanced skills of the candidates, including managing network components, configuring advanced storage, and implementing security measures. 1z1-106 Exam requires the candidates to have a solid understanding of advanced system administration concepts, including installing and configuring software and services, system monitoring, and troubleshooting.
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Earning the Oracle 1Z0-106 certification can demonstrate to employers that an IT professional has the expertise and skills needed to administer complex Oracle Linux 8 systems. Oracle Linux 8 Advanced System Administration certification can also lead to career advancement opportunities and higher salaries. Overall, the Oracle 1Z0-106 certification exam is an ideal choice for IT professionals who want to validate their advanced system administration skills and knowledge in an Oracle Linux 8 environment.
Oracle 1Z0-106 exam covers a wide range of topics, including system performance tuning, storage management, network configuration, security hardening, and virtualization. Candidates are expected to have a strong understanding of Linux commands, shell scripting, and system administration tools. They should also be familiar with advanced Linux concepts such as systemd, SELinux, and firewalld.
Oracle Linux 8 Advanced System Administration Sample Questions (Q46-Q51):
NEW QUESTION # 46
Examine this command:
# nft add rule inet filter input tcp dport 80 drop
Which two statements are true upon execution?
- A. All traffic inbound on port 80 is dropped.
- B. TCP packets outbound on port 80 are dropped.
- C. The rule is applied to both IPv4 and IPv6 packets.
- D. TCP packets inbound on port 80 are dropped.
- E. The rule applies to the input table.
- F. The rule updates the configuration on disk.
Answer: C,D
NEW QUESTION # 47
Which two statements are true about the Oracle Linux 8 boot process?
- A. The bootloader loads the initramfs file into memory and extracts the vmlinuz file into a temporary file system (tmpfs).
- B. The kernel loads driver modules from initramfs that are required to access the root file system.
- C. The bootloader loads the initramfs file into memory and extracts the vmlinuz file into the /boot file system.
- D. Both the vmlinuz file and the initramfs file are located in the /boot directory.
- E. The kernel loads driver modules from vmlinuz that are required to access the root file system.
Answer: A,B
NEW QUESTION # 48
Which two methods of changing kernel parameters can you use to modify values for the running system?
- A. Using the echo command to write values to specific files in the /proc/sys directory.
- B. Adding to or modifying parameters and values in the /etc/sysctl.conf file followed by issuing the sysctl - p command.
- C. Using the echo command to write values to specific files in the /sys directory.
- D. Issuing the sysctl -w command to write values to specific files in the /proc/sys directory.
- E. Issuing the sysctl -w command to write values to specific files in the /sys directory.
Answer: A,D
Explanation:
Explanation of Answer A:Thesysctl -wcommand is used to modify kernel parameters at runtime. It allows you to set the value of a specific parameter in the/proc/sysdirectory. For example,sysctl -w net.ipv4.
ip_forward=1will enable IP forwarding by writing the value directly to the corresponding file in/proc/sys.
Explanation of Answer B:Using theechocommand to write values directly to specific files in the/proc
/sysdirectory is another method to change kernel parameters dynamically for the running system. For instance, echo 1 > /proc/sys/net/ipv4/ip_forwardachieves the same effect as thesysctl -wcommand.
NEW QUESTION # 49
Examine this command:
# nft add rule inet filter input tcp dport 80 drop
Which two statements are true upon execution?
- A. All traffic inbound on port 80 is dropped.
- B. TCP packets outbound on port 80 are dropped.
- C. The rule is applied to both IPv4 and IPv6 packets.
- D. TCP packets inbound on port 80 are dropped.
- E. The rule applies to the input table.
- F. The rule updates the configuration on disk.
Answer: C,D
Explanation:
* Option A (Correct):The rule is applied to both IPv4 and IPv6 packets. Theinettable is used for filtering both IPv4 and IPv6 traffic, and since the rule is added to theinettable, it affects both IP versions.
* Option E (Correct):The rule drops TCP packets inbound on port 80. The rule specifies theinputchain in thefiltertable, and it drops (drop) all TCP traffic (tcp) destined for port 80 (dport 80), which means any incoming TCP traffic on port 80 will be dropped.
* Option B (Incorrect):The command does not automatically update the configuration on disk; the rule is applied immediately in memory but does not persist across reboots unless explicitly saved.
* Option C (Incorrect):The rule specifies TCP packets only, not all traffic. Therefore, it does not drop traffic for protocols other than TCP.
* Option D (Incorrect):Although this statement is correct, it is less specific than Option A, which is more accurate because it mentions both IP versions.
* Option F (Incorrect):The rule applies to inbound traffic, not outbound, so it does not drop outbound traffic.
Oracle Linux Reference:Refer to:
* OracleLinux 8: Managing Firewall Rules with nftables
NEW QUESTION # 50
Which takes precedence for ssh program configuration?
- A. ~/.ssh/config
- B. Command line
- C. /etc/ssh/sshd_config
- D. /etc/ssh/ssh_config
Answer: B
NEW QUESTION # 51
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