What is the effect of executing the following system call on the file "test.txt"?

open("test.txt", O_TRUNC)

How does a programmer distinguish a child from its parent process following a fork system call?

Which library provides the POSIX thread implementation on Solaris?

Which IPC shared memory sequences is correct?

How is the value of the shell environment variable IFS changed to comma (',')?

Which compiler options generates an assembler output file?

What is the purpose of a semaphore?

Which is true, given the following code: tok = strtok_r(data, " ”, &last); while (tok) { strcat(strcpy(full_name, the_path), tok); make_secondary(eAma_full_name, TRUE); tok = strtok_r(NULL, " ”, &last); }

What will happen when the compiler 'sees' the following code? #define FTP_TYPE "" #ifdef -FTP #define FTP_TYPE "FTP" #elif #ifdef -PASV #ifndef FTP_TYPE #define FTP_TYPE "PASV" #endif #endif

Which of the following advocates the use of memmove() over memcopy() for performing fast data copying from one buffer to another correctly?

CORBA's DII allows a client to do which one of the following?