ISRO Scientist or Engineer Computer Science 2007

A task in a blocked state

Semaphores

On a system using non-preemptive scheduling, processes withexpected run times of 5, 18, 9 and 12 are in the ready queue.In what order should they be run to minimize wait time?

The numberof page frames that mustbeallocated to a running process in a virtual memory environmentis determined by

A program consists of two modules executed sequentially. Let $$f_1(t)$$ and $$f_2(t)$$ respectively denote the probability density functions of time taken to execute the two modules. The probability density function of the overall time taken to execute the program is given by

Consider a small 2-wayset-associative cache memory, consisting of four blocks. For choosingthe block to be replaced,usethe least recently (LRU) scheme. The numberof cache missesforthe following sequence of block addresses is 8,12,0,12,8

Which commandsare used to control access overobjects in relational database?

Whichof the following is aggregate function in SQL?

One approach to handling fuzzy logic data might be to design a computer using ternary (base-3) logic so that data could be stored as “true,” “false,” and “unknown.”ff each ternary logic elementis called a flit, how many flits are required to represent at least 256 different values?

A view of a database that appears to an application program is known as