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System programs such as Compilers are designed so that they are

• reenterable

• non reusable

• serially usable

• recursive

File & directory permissions in Linux are assigned by numerically only

• True

• False

File is an abstract data type

• True

• False

Which of the following algorithms tends to minimize the process flow time ?

• Shortest Job First

• First come First served

• Earliest Deadline First

• Longest Job First

A development strategy whereby the executive control modules of a system are coded and tested first, is known as

• Bottom-up development

• Left-Right development

• All of the choices

• Top-down development

Which of the following is not the state of a process?

• Old

• Running

• Waiting

• New

The real difficulty with SJF in short term scheduling is :

• knowing the length of the next CPU request

• it is too complex to understand

• it is too good an algorithm

Which of the following addressing modes, facilitates access to an operand whose location is defined relative to the beginning of the data structure in which it appears?

• index

• indirect

• ascending

• sorting

To enable a process to wait within the monitor,

• semaphore must be used

• a condition variable must be declared as condition

• condition variables must be used as boolean objects

Which command is used to get the kernel version in Linux?

• uname -r

• uname -n

• uname -s

• kernel