Fixed partition

Question

Consider a scenario having fixed partition allocation scheme where each partition is of size 100KB , 500KB , 200Kb , 300KB and 600KB.In these partitions the processes  that are needed to be placed are 212KB , 417KB , 112KB and 426KB(in order).How may partitions will remain unallocated after placing the proceses by firstbit approach

Answer 1

100 KB

500KB     212KB

200KB     112KB

300KB

600KB    417KB

 426 KB won't be able to allocated

Two partitions are unallocated 100KB and 300KB.

Comments

in second partition (500 - 212 ) = 288 KB is left

so when 112KB process comes why not filling it there and filling in the 200KB partition?

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That can also happen , even OS will allocate this 288KB to 112KB process.

I assumed it static partitioning , in which Once a partition is allocated for a block , Other process can use the same partition only after the completion of currently running process for whom the partition is allocated.

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So by default we assume static partitioning?