#pwconv
-> It convert /etc/passwd to /etc/shadow
#pwunconv
-> It convert /etc/shadow to /etc/shadow
you can check both file after running pwconv and pwunconv
cmd to get difference.
Wtmp and utmp files contain a) Temporary system data b) User login-logout log c) The user's command execution log d) The user's su and sudo attempts
Which is the core of the operating system? a) Shell b) Kernel c) Commands d) Script
ILP32 stands for a) 32 bit Integer, Long & Pointer b) 32 bit Integrated Long & Pointer c) 32 bit Intelligent Long & Pointer d) 32 bit Long & Pointer
Single Unix Specification Version 2 provides enhanced support for a) 16 bit Unix b) 32 bit Unix c) 64 bit Unix d) 8 bit Unix
Under UNIX the key board is the default input device and the monitor is the default output device. a) True b) False
Which among the following interacts directly with system hardware? a) Shell b) Commands c) Kernel d) Applications
Applications communicate with kernel by using a) System Calls b) C Programs c) Shell Script d) Shell
Solaris is the name of a flavor of UNIX from a) HP b) IBM c) Digital Equipment Corp d) Sun Microsystems
Which of the following is "NOT" a UNIX variant? a) Solaris b) AIX c) IRIX d) AS400
The system calls in UNIX is written using which language? a) C b) C++ c) Assembly Language d) Fortran
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