ANSWERS 100% VERIFIED
A thread calling pthread_cond_signal() will block until the corresponding mutex is
available. - ANSWER-False
A thread will block if the semaphore value is less than or equal to zero. - ANSWER-True
Every process belongs to a process group - ANSWER-True
the degree of multiprogramming in an operating system is controlled by the CPU (short-
term) schedule. - ANSWER-False
programs and processes are synonymous. - ANSWER-False
when the fork () system call is invoked, the child process that is created gets a new PID
- ANSWER-True
A process control block___?. - ANSWER-includes information on process' state
____ are all valid process states - ANSWER-Running, blocked and waiting.
What is the complete range of well known parts? - ANSWER-0 - 1023
The state transition from blocked to waiting happens with ___? - ANSWER-I/o or event
completion
An I/O- bound process spends___. - ANSWER-More of its time seeking I/O operation
than doing computational work.
A child process created by the fork () system call inherits its parent's process id, or PID -
ANSWER-False
The select system call allows the server to deal with blocking calls by identifying sockets
that are ready for use. - ANSWER-True
1. System calls or library routines are called thread safe if they can be called from
multiple threads simultaneously and always produce correct results. - ANSWER-True
data gram sockets do not require the client to establish a connection with eh server
before sending messages to the server. - ANSWER-True