Explanation: Part of the job of cleaning up heavily loaded file systems involves locating and removing files that have not been used recently. You can locate unused files by using the Is or find commands.
Other ways to conserve disk space include emptying temporary directories such as the directories located in /var/tmp or /var/spool, and deleting core and crash dump files.
Note: Core files are generated when a process or application terminates abnormally. Core files are managed with the coreadm command.
For example, you can use the coreadm command to configure a system so that all process core files are placed in a single system directory. This means it is easier to track problems by examining the core files in a specific directory whenever a process or daemon terminates abnormally.

Explanation: Each user belongs to a group that is referred to as the user’s primary group. The GID number, located in the user’s account entry within the /etc/passwd file, specifies the user’s primary group.
Each user can also belong to up to 15additional groups, known as secondary groups. In the /etc/group file, you can add users to group entries, thus establishing the user’s secondary group affiliations.
Note (4 PSARC/2009/542):his project proposes changing the maximum value for NGROUPS_MAX from 32 to 1024 by changing the definition of NGROUPS_UMAX from 32 to 1024.The use for a larger number of groups is described in CR 4088757, particular in the case of Samba servers and ADS clients; the Samba servers map every SID to a Unix group. Users with more than 32 groups SIDs are common. We've seen reports varying from '64 is enough', '128 is absolutely enough' and 'we've users with more 190 group SIDS).www.j3e.de/ngroups.html):')NGROUPS_MAX as defined by different Unix versions are as follows (http://www.j3e.de/ngroups.html):Linux Kernel )= 2.6.3 65536Linux Kernel ( 2.6.3 32Tru64 / OSF/1 32IBM AIX 5.2 64IBMAIX5.3... 6.1 128OpenBSD, NetBSD, FreeBSD, Darwin (Mac OS X) 16Sun Solaris 7, 8, 9, 10 16 (can varyfrom 0-32)HP-UX 20IRIX 16 (can vary from 0-32)Plan 9 from Bell Labs 32Minix 3 0 (Minix-vmd: 16)QNX 6.4 8

B, D

Explanation: The prtconf command prints the system configuration information. The output includes the total amount of memory, and the configuration of system peripherals formatted as a device tree.
If a device path is specified on the command line for those command options that can take a device path, prtconfwill only display information for that device node.

Explanation: The first IP address is already in use.

A, B

Explanation: Show address information, either for the given addrobj or all the address objects configured on the specified interface, including the address objects that are only in the persistent configuration.
Example;

ipadm show-addr

ADDROBJ TYPE STATE ADDR loO/v4 static ok 127.0.0.1/8 loO/v6 static ok ::1/128

Explanation: Unlike DOS, which uses the file extension to determine if a file is executable or not, UNIX relies on file permissions.
The value assigned by umask is subtracted from the default.
User's file creation mask, umask sets an environment variable which automatically sets file permissions on newly created files, i.
E. it will set the shell process's file creation mask to mode.umask 000 would grant full permissions.
Note: 777 full permissions

Explanation: This example shows how to display the default root crontab file.
$ suPassword:

crontab -I

#ident '@(#)root 1.19 98/07/06 SMI' /* SVr4.0 1.1.3.1 */ #

The root crontab should be used to perform accounting data collection. # # 103* 153* 30 3* #10 3

• /usr/sbin/logadm
  0 /usr/lib/fs/nfs/nfsfind
• [ -X /usr/lib/gss/gsscred_clean ]/usr/lib/gss/gsscred_clean
• • /usr/lib/krb5/kprop_script___slave_kdcs______

A, D -- Explanation: A: An automated installation of a client over the network consists of the following high-level steps:Step 1. The client system boots over the network and gets its network configuration and the location of the install server from the DHCP server.
Step 2: The install server provides a boot image to the client.
Etc.
D: If two client machines need to be installed with the same version of the Cracle Solaris 11 CS but need to be installed differently in other ways, then create two Al manifests for the Al install service. The different Al manifests can specify different packages to install or a different slice as the install target, for example.