Recent questions tagged memory-management

5 5 votes
1 1 answer
220
220 views
A segmentation-based memory-management system maintains a shared segment table.Processes $P_1$ and $P_2$ both share segment $S$.Which of the following statements is incor...
1 1 vote
1 1 answer
108
108 views
Can High Thrashing cause Deadlock in the System?As The thrashing is High, the system will start suspending some processes in order to increase throughput of the cpu.Now i...
1 1 vote
1 1 answer
213
213 views
Match the LIST-I with LIST-IILIST-ILIST-IIA.Short term schedulerI.Determine which process are added to the system for execution level place them in ready queueB.Medium te...
1 1 vote
1 1 answer
97
97 views
Which of the following memories/storage are volatile?RAMROMCacheSSDHDDChoose the correct answer from the options given below:$\text{I, III}$ and $\text{IV}$ Only$\text{II...
1 1 vote
1 answers 1 answer
233
233 views
6 6 votes
6 6 answers
2.6k
2.6k views
Consider contiguous allocation of physical memory to processes using variable partitioning scheme. Suppose there are $8$ holes in the memory of sizes $20 \mathrm{KB}, 4 \...
4 4 votes
2 2 answers
845
845 views
Consider a system that has a cache memory unit and a memory management unit (MMU). The address input to the cache memory is a physical address. The MMU has a TLB. Assume ...
1 1 vote
1 answers 1 answer
254
254 views
Question:Let A and B are 8 bit registers and used to represent the data in signed 2's complement notation. In the following the correct statement(s) is/are:The overflow o...
1 1 vote
2 2 answers
494
494 views
Consider the two-dimensional array A:int A[][] = new int[100][100];where A[0][0] is at location 200 in a paged memory system with pages of size 200. A small process that ...
0 0 votes
0 0 answers
224
224 views
Given six memory partitions of 300 KB, 600 KB, 350 KB, 200 KB, 750 KB, and 125 KB (in order), how would the first-fit, best-fit, and worst-fit algorithms place processes ...
0 0 votes
0 0 answers
307
307 views
Consider a multilevel paging scheme where the page tables are not page aligned, suppose there are 3 levels annd if from L1 to address L2 page table we need 25 bits, then ...
1 1 vote
0 0 answers
345
345 views
In a 32-bit machine we subdivide the virtual address into 4 pieces as follows:8-bit 4-bit 8-bit 12-bitWe use a 3-level page table, such that the first 8 bits are...
1 1 vote
1 1 answer
450
450 views
Match List I with List II$\begin{array}{|ll|ll|} \hline & \textbf{List I} & & \textbf{List II} \\ \hline \text{A.} & \text{Clustered Page Table} & \text{I.} & \text{Gene...
0 0 votes
0 0 answers
260
260 views
Match List I with List II$\begin{array}{|ll|ll|} \hline & \textbf{List I} && \textbf{List II} \\ \hline \text{A.} & \text{RAID Level } 2 & \text{I.} & \text{Block interle...
2 2 votes
1 1 answer
315
315 views
Which of the following is correct sequence of increasing access time of storage/memory devices ?Magnetic tapeRAMCache memoryHard diskRegistersChoose the correct answer fr...
0 0 votes
2 2 answers
325
325 views
Arrange the following in the increasing order with respect to access time.Solid State DriveOptical DisksDRAMsSRAMsRegistersChoose the correct answer from the options give...
1 1 vote
1 1 answer
406
406 views
If the virtual memory size is $32$ MB and a physical memory size is $4$ MB with a page size of $2$ KB, Calculate the number of frames available in physical memory$1024$$2...
0 0 votes
1 1 answer
318
318 views
Find the correct sequence of the storage device in ascending order based on their access time.RegistersMagnetic DiskMagnetic TapesMain memoryOptical DiskChoose the correc...
0 0 votes
1 1 answer
385
385 views
Match List - I with List - II.$\begin{array}{|ll|ll|} \hline & \textbf{List - I} && \textbf{List-II} \\ & \textbf{(operating system concepts)} && \textbf{(characteristics...
1 1 vote
1 1 answer
326
326 views
An Address in main memory is called :Virtual addressMemory addressLogical addressPhysical address
0 0 votes
1 1 answer
306
306 views
The average time required to search a storage location in memory and obtain its contents is called :Access timeLatency timeResponse timeReading time
1 1 vote
0 0 answers
202
202 views
Which of the following(s) are main memory ?Virtual memoryCache memoryRAMSSDChoose the correct answer from the options given below :$\text{(I)}$ and $\text{(III)}$ Only$\t...
0 0 votes
1 1 answer
276
276 views
Which of the following statements is/are NOT CORRECT about NUMA ?$\textrm{LOAD}$ and $\textrm{STORE}$ instructions are used to access remote memory.There is a single addr...
1 1 vote
1 1 answer
234
234 views
Identify the correct sequence of the missing units of data $A-D$ that can be used to represent the size of a file, as it changes in size. The units of data increase in si...
0 0 votes
1 1 answer
213
213 views
Which of the following is the main objective of memory management in an operating system?Efficient allocation of memoryProtection of memoryVirtual memory managementAll of...
0 0 votes
0 0 answers
136
136 views
What does the size of a Page Table Entry $\text{(PTE)}$ depend on in a paging system?The number of bits required to represent the frame numberThe size of the virtual memo...
0 0 votes
1 1 answer
429
429 views
0 0 votes
2 2 answers
454
454 views
Virtual page numbers and physical frame numbers are represented in decimal. Consider a machine with $32$-bit virtual addresses and a page size of $512$ bytes. During a pr...