Free Practice Questions for Oracle 1z0-106 Exam

Option B (Correct):Round-robin is a network bonding mode that distributes outgoing traffic evenly across all active network interfaces.

Option D (Correct):802.3ad (LACP - Link Aggregation Control Protocol) is a bonding mode that allows dynamic aggregation of links conforming to the IEEE 802.3ad standard.

Option F (Correct):Active Backup is a bonding mode where one interface is active while the other is in standby, providing redundancy.

Options A, C, E, G (Incorrect):Multicast, Split Horizon, Poison Reverse, and Passive Backup are not valid bonding modes in Oracle Linux 8.

Oracle Linux Reference:Refer to:

Oracle® Linux 8: Network Bonding Guide

Option A (Correct):The/procfile system is a pseudo-file system that contains runtime system information (e.g., system memory, mounted devices, hardware configuration, etc.). Files such as/proc/meminfoand/proc/cpuinfoprovide detailed information about memory and CPUs, respectively.

Option C (Correct):The/sysfile system, also known as sysfs, provides a view of the kernel's device model. It contains information about system hardware, including CPUs and memory. For example,/sys/devices/system/cpu/contains directories and files that provide detailed information about each CPU.

Option B (Incorrect):The/sysfile system does not contain a list of running processes. Running processes are listed in the/procfile system, with each process having its own directory under/proc.

Option D (Incorrect):/procdoes not contain a list of network drivers specifically. Network driver information is available under/proc/net, but this does not equate to a list of drivers.

Option E (Incorrect):The/sysfile system does not contain a list of mounted devices. Mounted devices are listed in/proc/mountsor the/etc/mtabfile.

Oracle Linux Reference:For more details, see:

Oracle® Linux 8: The/procand/sysFile Systems.

Explanation of Answer B:When executingnmcli con mod ens4 ipv4.method auto, theipv4.methodparameter is set toauto, which configures the interface to obtain its IP address using DHCP. This means that theBOOTPROTOvalue in the configuration is set todhcp.

Explanation of Answer D:Whenipv4.methodis set toauto(DHCP), any static IP address specified inIPADDRis considered null because the interface will now obtain its IP address from a DHCP server, making the manually set IP address irrelevant.

Option C (Correct):Thedmesg -Tcommand converts the timestamps in the kernel ring buffer messages to a human-readable format. The defaultdmesgoutput shows the timestamps in a raw format (seconds since the kernel started), while the-Toption translates these timestamps into a human-readable date and time.

Option A (Incorrect):The-toption is used to remove the timestamps entirely from the output.

Option B (Incorrect):The-xoption provides extended information about the message (e.g., facility, level).

Option D (Incorrect):The-Woption waits for new messages and does not convert timestamps to a human-readable format.

Oracle Linux Reference:Refer to:

man dmesgfor more details ondmesgoptions.

GRUB 2 (GRand Unified Bootloader version 2) is a bootloader that is capable of loading a variety of free operating systems directly. It also supports chain-loading, which is the process of loading other bootloaders. This feature allows it to boot proprietary operating systems, such as Windows, by passing control to their respective bootloaders. This flexibility makes GRUB 2 a popular choice for dual-boot or multi-boot configurations.

Explanation of Answer D:GRUB 2 has the capability to understand multiple file systems (like ext2/3/4, Btrfs, XFS, etc.) and kernel executable formats. This capability means GRUB 2 does not rely on the physical location of a kernel on the disk to load an operating system. Instead, it reads the file system to locate the kernel file. This feature adds flexibility and ease in managing boot entries and reduces the complexity involved in locating kernels manually.

Option B (Correct):Btrfs uses a copy-on-write mechanism for both data and metadata, which ensures that the file system is more resilient to crashes and data corruption.

Option E (Correct):Btrfs supports online resizing, meaning that you can change the size of a mounted Btrfs file system without unmounting it.

Option G (Correct):Btrfs automatically defragments files in the background to maintain performance.

Option A (Incorrect):While Btrfs does support mirroring, it is not strictly block device mirroring in the traditional sense like RAID; it uses a different approach to redundancy.

Option C (Incorrect):Btrfs is not a cluster file system; it is designed for local file systems.

Option D (Incorrect):While Btrfs can store small files efficiently, it is not its primary design goal compared to other file systems optimized specifically for small files.

Option F (Incorrect):Btrfs is a file system with integrated volume management capabilities but is not a general-purpose volume manager like LVM.

Oracle Linux Reference:Refer to:

Oracle® Linux 8: Btrfs File System

man btrfsfor features and management.

Option A (Correct):A user private group (UPG) ensures that each user has their own unique group created with the same name and ID as the user.

Option E (Correct):The UPG model helps prevent other users from modifying files by default, as newly created files are assigned to the user’s unique group and not to a shared group.

Option B (Incorrect):UPG does not give the capability to create new group users; this is related to group management commands.

Option C (Incorrect):UPG does not providesudocapabilities;sudoconfiguration is managed separately.

Option D (Incorrect):UPGs do not limit reading files to group users by default; it depends on specific file permissions.

Oracle Linux Reference:Refer to:

Oracle® Linux 8: Managing Users and Groups

To use a file as swap space, it must first be initialized with themkswapcommand. Theddcommand creates an empty file, butmkswapformats this file to be used as swap space. This command writes the necessary swap header to the file, making it recognizable by the system as a valid swap area.

Explanation of Answer D:After initializing the swap file withmkswap, you can optionally assign a label to the swap file using theswaplabelcommand. This is not strictly required, but it can be useful for identifying swap files, especially if you are using multiple swap devices.