| Which address user deals or accesses directly virtual(logical) or physical address? |
1 |
532 |
|
| Address Generation |
1 |
599 |
Accenture
|
| Fork System Call |
1 |
654 |
|
| Mutex vs Binary Semaphore |
0 |
715 |
|
| How processes are mapped from disk to memory? |
1 |
742 |
Philips
|
| What are the advantage of using virtual memory? |
1 |
754 |
work-application-japan
|
| Calculate physical address if logical address is 346 and relocation register is 14000? |
2 |
759 |
|
| Explain on fail fast ? |
1 |
759 |
Quikr
|
| Explain on fail safe iterators ? |
2 |
771 |
Quikr
|
| What is distributed storage? |
1 |
788 |
Hike
|
| What is synchronization? |
1 |
799 |
Yahoo
|
| What are the various types of constructors? |
2 |
804 |
Philips
|
| Progress of a process |
1 |
808 |
Bhel-2007
|
| Reference String |
1 |
808 |
Cil-2003
|
| What are advantage of using threads in OS? |
1 |
813 |
work-application-japan
|
| What is process spawing? |
1 |
814 |
Synopsys
|
| Why is partitioning and formatting a prerequisite to installing an operating system? |
1 |
818 |
Zomato
|
| What is WiMAX? |
1 |
822 |
Aricent
|
| Mutual exlusion meaning |
1 |
826 |
Cil-2003
|
| Implement bounded waiting of processes |
1 |
827 |
Nhai-2012
|
| Calculate the legal address if base address is 300040 and limit regsiter is 120900? |
1 |
829 |
Philips
|
| Concept of paging |
1 |
836 |
Tisco-2001
|
| Why threads are required in operating system? |
1 |
839 |
work-application-japan
|
| What is faulting? |
1 |
844 |
Yahoo
|
| Dynamic partitioning |
1 |
845 |
Tisco-2003
|
| What is virtual memory in OS? |
1 |
859 |
work-application-japan
|
| What is Thread? |
2 |
868 |
Air-India
|
| Suspend ready |
1 |
869 |
|
| What is Asynchronous SRAM? |
1 |
870 |
Zomato
|
| What are the sub-components of I/O manager in Windows NT? |
1 |
873 |
Expedia
|
| States of a process |
1 |
879 |
cil
|
| What are benefits of multithreading? |
1 |
880 |
Xome
|
| What is a template? |
3 |
881 |
Cognizant
|
| Semaphore Types |
1 |
882 |
Air-India
|
| What are disadvantages of Index Allocation Strategy? |
1 |
886 |
Intuit
|
| What is multitasking? |
1 |
888 |
Zomato
|
| Data structure used in Process state |
1 |
890 |
cil
|
| What resources are used when a thread created? How do they differ from those when a process is creat |
1 |
894 |
Zomato
|
| What is piping? |
1 |
897 |
Zomato
|
| Explain aging ? |
1 |
900 |
Visa
|
| How can a deadlock occur? |
2 |
900 |
Deloitte
|
| Explain process synchronization ? |
1 |
904 |
Arista Networks
|
| What is mutant? |
1 |
912 |
Cognizant
|
| Busy waiting and sleep-wake solution |
1 |
913 |
Nhai-2012
|
| What is process synchronization? |
1 |
913 |
Expedia
|
| Peterson solution and expalnation |
1 |
914 |
Cil-2007 | Nhai-2012
|
| How will you troubleshoot if server is hanged? |
1 |
917 |
IBM
|
| Race condition Meaning |
1 |
923 |
cil
|
| Name the part of the program which all thread shares . |
1 |
929 |
|
| Destination of suspend wait process |
1 |
935 |
cci | nhai
|
| Bounded waiting of processes |
1 |
936 |
Bhel-2004
|
| Entering in to system mode or kernel mode |
1 |
936 |
Bhel-2007
|
| Maximum running and blocked Processes on a processor |
2 |
941 |
nmrc
|
| How to solve thrashing at a high level and proactively? |
1 |
941 |
Wipro
|
| Lock variable synchronisation mechanism |
1 |
944 |
ongc
|
| What is the Blue Screen of Death (BSOD)? . |
1 |
950 |
Wipro
|
| What is a address register? |
2 |
951 |
Kronos Incorporated
|
| Differentiate internal commands from external commands. |
1 |
952 |
Zomato
|
| How do multiple inheritance and single inheritance differ? |
2 |
966 |
|
| How much MB is required |
1 |
967 |
Bhel-2006
|
| What is there in page table entry. |
2 |
969 |
barc
|
| Bounded waiting |
1 |
972 |
Bhel-2004
|
| Peterson solution |
1 |
974 |
Nhai-2012
|
| What is cache memory? |
1 |
976 |
Philips
|
| What are the types of fragmentation? |
1 |
982 |
Target Corporation
|
| The utility used to monitor the resource utilization of the linux system |
1 |
986 |
Directi
|
| Expain pre-processing ? |
1 |
988 |
D-E-Shaw
|
| What are solution to critical section problem? |
3 |
990 |
Xome
|
| context in operating system |
1 |
994 |
barc
|
| What are short, long and medium-term scheduling? |
1 |
995 |
Synopsys
|
| What is aging? |
2 |
996 |
|
| What is hard disk and what is its purpose? |
1 |
996 |
Zomato
|
| What is monitor ? |
1 |
997 |
One97
|
| When is a system in safe state? |
1 |
999 |
eBay
|
| Absolute Function In C language |
4 |
1000 |
Nhai-2013
|
| What are the primary functions of VFS ? |
1 |
1000 |
Wipro
|
| What is a daemon? |
1 |
1003 |
Cognizant
|
| What is preemptive multitasking? |
1 |
1005 |
Zomato
|
| What is GUI? |
1 |
1007 |
Zomato
|
| states and locations of a process |
1 |
1008 |
gail | tatasteel
|
| What are overlays? |
1 |
1019 |
Wipro
|
| Describe a scenario in which deadlock occurs and a solution to overcome it. |
2 |
1022 |
MakeMyTrip
|
| Process Address Space |
1 |
1027 |
Barc-2003
|
| Fixed partitioning |
3 |
1030 |
Tisco-2004
|
| What is Maintainability ? |
1 |
1030 |
Visa
|
| What is a trap and trapdoor? |
2 |
1030 |
TCS
|
| How to avoid deadlock? |
1 |
1032 |
Deloitte
|
| What is the purpose of using critical sections? |
3 |
1033 |
HCL
|
| What is IPC? |
1 |
1034 |
Philips
|
| Explain how MMU(Memory Management unit) helps in mapping between CPU and main memory? |
3 |
1036 |
|
| What is SCSI? |
1 |
1036 |
Infosys
|
| if virtual address is not in range of valid address what happens? |
1 |
1037 |
barc
|
| What are the basic functions of an operating system? |
3 |
1037 |
Philips
|
| What is Spooling? |
2 |
1038 |
Intuit
|
| Explain the popular multiprocessor thread-scheduling strategies ? |
1 |
1039 |
Cognizant
|
| Differentiate logical from physical address space? |
1 |
1039 |
Zomato
|
| In which conditions,you will not allow a page to cached? |
1 |
1041 |
barc
|
| Explain Internal Fragmentation ? |
2 |
1044 |
Amdocs
|
| The different types of memory a process has got. |
1 |
1046 |
Directi
|
| OS Semaphore |
2 |
1046 |
Philips
|
| What is fork()? |
1 |
1047 |
Kronos Incorporated
|
| What is critical section problem? |
1 |
1049 |
Xome
|
| what are One time passwords |
3 |
1051 |
Barc-2008
|
| What is virtual memory? |
1 |
1052 |
Yahoo
|
| What is Reader Writer Problem? |
1 |
1056 |
Expedia
|
| Critical Section |
1 |
1057 |
Intel
|
| What is virtualization? |
2 |
1059 |
Hike
|
| Why spinlocks are not appropriate for single-processor systems yet are often used in multiprocessor |
2 |
1060 |
|
| What is connection pooling? |
1 |
1060 |
Quikr
|
| Mutual exclusion in critical section |
1 |
1063 |
Cil-2003 | nhai
|
| How will you design a service which is scaleable ? |
1 |
1063 |
Directi
|
| Busy waiting |
1 |
1071 |
|
| Why paging is used? |
1 |
1074 |
Kronos Incorporated
|
| What is multi tasking, multi programming and multi threading? |
1 |
1077 |
Zomato
|
| Design a sync mechanism between client and server. |
1 |
1078 |
Ola Cabs
|
| Data astructures used for LFU Cache |
1 |
1080 |
Rivigo
|
| What is fragmentation? |
2 |
1081 |
Target Corporation
|
| What is difference between segmentation and paging? |
1 |
1083 |
work-application-japan
|
| Sequential access of file |
1 |
1085 |
Air-India
|
| What are different RAID levels? |
1 |
1088 |
Philips
|
| Structure of a process |
2 |
1090 |
Barc-2002
|
| What are semaphores? |
2 |
1091 |
Yahoo
|
| Explain external fragmentation ? |
2 |
1091 |
Amdocs
|
| What is Convoy Effect in OS? |
1 |
1092 |
|
| How will you efficiently balance load given N servers using a load balancer ? |
1 |
1093 |
Directi
|
| What is DRAM? |
1 |
1094 |
eBay
|
| What is user mode? |
2 |
1094 |
work-application-japan
|
| What is the Process Control Block? List its fields. |
2 |
1098 |
Philips
|
| Explain the concept of Reentrancy? |
1 |
1100 |
Wipro
|
| What is pooling ? |
1 |
1100 |
Synopsys
|
| Explain fork() system call. |
1 |
1101 |
|
| What is demand paging? |
1 |
1105 |
Kronos Incorporated
|
| What is the best page size when designing an operating system? |
2 |
1105 |
Bidgely
|
| Explain three conditions for synchronization with the help of peterson's solution . |
1 |
1109 |
|
| Manage amount in bank account |
1 |
1109 |
Directi
|
| Why RAM is less than it is said to be in the Mobiles/computers/laptops |
2 |
1115 |
Amadeus Labs
|
| What is busy waiting? |
1 |
1115 |
Synopsys
|
| Find the bits required for logical address |
5 |
1118 |
Isro-2015
|
| What is Marshalling? |
2 |
1119 |
TCS
|
| process in memory |
1 |
1121 |
Arista Networks
|
| Data structures used for LRU Cache |
1 |
1124 |
Rivigo
|
| Explain briefly difference between different address binding methods? |
3 |
1126 |
Philips
|
| Swapping of Processes |
1 |
1131 |
Air-India
|
| C Loop Question |
1 |
1133 |
Morgan Stanley
|
| How does Scheduler work? |
2 |
1136 |
Arcesium
|
| What is BIOS? |
1 |
1142 |
Zomato
|
| Explain Android ? |
1 |
1143 |
VMWare
|
| Which addresses are generated by the following:- 1) CPU 2) Memory Management unit 3) Main Memory |
1 |
1147 |
Philips
|
| TLB (Translational Lookaside Buffer ) |
1 |
1148 |
bhel
|
| What is hibernate? |
1 |
1148 |
Wipro
|
| What is kernel mode? |
1 |
1149 |
work-application-japan
|
| Explain Primary Memory, Secondary Memory, Virtual Memory? |
1 |
1151 |
Accenture
|
| What is SMP? |
1 |
1156 |
Infosys
|
| Implement messaging service. |
0 |
1163 |
Ola Cabs
|
| What is the purpose of an I/O status information? |
1 |
1163 |
Zomato
|
| What is the cache memory? |
2 |
1163 |
Zomato
|
| What is time-stamping? |
1 |
1166 |
Linkedin
|
| First Fit and worst Fit algorithm |
2 |
1167 |
Air-India
|
| how to prevent dead locks ? |
2 |
1167 |
Quikr
|
| Why C is used in implementation of OS even though it's not as secure as C++ and JAVA? |
1 |
1170 |
SAP Labs
|
| Context switching |
1 |
1171 |
barc | iocl
|
| What are the typical elements of a process image? |
1 |
1171 |
Linkedin
|
| How does swapping result in better memory management? |
1 |
1171 |
Zomato
|
| What is point of difference between fork() and exec()? |
1 |
1177 |
Xome
|
| How external fragmentation can be prevented? |
1 |
1178 |
Amdocs
|
| Explain Paging with Example ? |
1 |
1187 |
Payu
|
| Memory management |
1 |
1188 |
Arista Networks
|
| What is the basic function of paging? |
1 |
1189 |
Zomato
|
| What is swapper?Explain Its working. |
1 |
1190 |
Directi
|
| What is arcesium ? |
1 |
1198 |
D-E-Shaw
|
| What is a named pipe? |
2 |
1200 |
Cognizant
|
| What is priority inversion? |
2 |
1204 |
|
| How to get rid of Thrashing? |
2 |
1206 |
barc
|
| How can a 4GB process run on only 2 GB RAM? |
1 |
1208 |
Morgan Stanley
|
| Calculate the rotational speed of a disc drive |
4 |
1209 |
|
| Process Attributes in Operating System |
1 |
1210 |
hpcl | iocl
|
| Virtual memory and Paging(Duplicate) |
0 |
1214 |
Adobe
|
| Explain Semaphore |
2 |
1226 |
Nhai-2012
|
| What is the Context Switch? |
3 |
1237 |
Zomato
|
| Explain why Ubuntu is safe and not affected by viruses? |
1 |
1242 |
Zomato
|
| What are the necessary conditions for deadlock? |
2 |
1243 |
eBay
|
| Data Structure used in First Fit and Best Fit algorithm |
1 |
1244 |
Tisco-2003
|
| When does the Belady's anomaly occur? |
2 |
1245 |
Cognizant
|
| Virtual Memory concept |
1 |
1249 |
Bhel-2007
|
| System Calls |
1 |
1252 |
|
| Fragmentation |
1 |
1255 |
Cil-2003 | Expedia
|
| Explain work of Dispatcher |
2 |
1261 |
Directi | Expedia
|
| Explain the boot procedure.? |
1 |
1263 |
Yahoo
|
| What are functions of virtual file system? |
1 |
1263 |
Zomato
|
| Minimum processes for deadlock prevention |
3 |
1265 |
gail
|
| How to handle with segmentation fault? |
2 |
1268 |
barc
|
| What are some advantage and disadvantage of a command line interface? |
2 |
1272 |
Zomato
|
| Virtual memory |
2 |
1275 |
Adobe
|
| Coffman’s Rule |
1 |
1276 |
Cisco
|
| What are read-write locks? |
1 |
1285 |
Cognizant
|
| What is POST? |
3 |
1286 |
symantec
|
| What is the Translation Lookaside Buffer (TLB)? |
1 |
1291 |
Linkedin
|
| How can you make sure that deadlock does not occur? |
3 |
1292 |
Citrix
|
| What is Batch OS |
3 |
1309 |
barc | isro
|
| What is the solution to priority inversion? |
2 |
1314 |
|
| What is livelock? |
1 |
1320 |
Yahoo
|
| Explain Multitasking ? |
2 |
1327 |
Samsung
|
| Draw the states of a process in an OS ? |
1 |
1331 |
Arista Networks
|
| role of Memory Management |
1 |
1332 |
Intel
|
| Paging in Operating system |
1 |
1333 |
Cisco
|
| What is Coffman's conditions that lead to a deadlock ? |
1 |
1333 |
Wipro
|
| Define a driver. |
2 |
1334 |
Directi
|
| Peterson solution and TSL |
1 |
1336 |
Cil-2007 | Nhai-2012
|
| What is exec() ? |
1 |
1339 |
Kronos Incorporated
|
| What is LRU? |
1 |
1341 |
Rivigo
|
| What is inverted paging? |
1 |
1351 |
Kronos Incorporated
|
| What starts first when computer is turned on? |
1 |
1357 |
Morgan Stanley
|
| If we have infinite RAM then should we use virtual memory or not and why? |
2 |
1364 |
Citrix
|
| Memory allocation techniques |
1 |
1366 |
Cil-2007
|
| What is the resident set and working set of a process? |
2 |
1371 |
Belzabar
|
| Memory allocation and deallocation |
2 |
1375 |
Adobe
|
| Deadlock Occurrence |
2 |
1378 |
Deloitte
|
| What is cache-coherency?? |
2 |
1393 |
Synopsys
|
| What is a Kernel? |
2 |
1394 |
Cognizant
|
| Page and Frames |
4 |
1399 |
Wipro
|
| IPCs mechanisam. |
2 |
1400 |
Adobe
|
| What are interrupts? |
1 |
1400 |
Cisco
|
| handle interrupt |
2 |
1405 |
Intel
|
| Micro kernel Vs macro kernel. |
1 |
1410 |
Visa
|
| Deadlock Recovery |
2 |
1411 |
Deloitte
|
| Window 8 Vs Window 7 |
2 |
1414 |
Adobe
|
| External Sorting |
1 |
1416 |
Samsung
|
| What are some pros and cons of a command line interface? |
1 |
1420 |
Linkedin
|
| What is windows registry ?? |
2 |
1428 |
Adobe
|
| Difference between User-Level & Kernel-Level Thread |
1 |
1428 |
Bhel-2004
|
| What is semaphore? |
1 |
1435 |
Cisco
|
| Staic & Dynamic Memory |
1 |
1440 |
Samsung
|
| Direct Memory Access |
1 |
1440 |
Cisco
|
| What is process in OS? |
1 |
1444 |
Oracle
|
| How can a VFS layer allow multiple file systems support? |
1 |
1445 |
Cognizant
|
| Why process cooperation is necessary? |
3 |
1446 |
|
| What is the main difference between portability and Platform independent ? |
1 |
1447 |
TCS
|
| What is the use of scheduler? |
5 |
1448 |
Arcesium
|
| How to calculate checksum ? |
1 |
1453 |
orange
|
| What are similarities between process and thread? |
1 |
1473 |
work-application-japan
|
| Explain Process Control Block |
1 |
1474 |
|
| Defragmentation |
3 |
1478 |
Adobe
|
| Race Condition |
1 |
1480 |
Intel
|
| What are limitation of semaphores? |
1 |
1480 |
Xome
|
| What is a Safe State and what is its use in deadlock avoidance? |
1 |
1481 |
Zomato
|
| What are advantages of demand paging? |
1 |
1484 |
work-application-japan
|
| Avoiding Race Condition |
1 |
1485 |
bhel
|
| Process Scheduler |
1 |
1492 |
Samsung
|
| Non-contiguous Memory allocation |
1 |
1493 |
Tisco-2001
|
| What are the disadvantages of demand paging? |
1 |
1505 |
work-application-japan
|
| How google chrome tabs are loaded through scheduling? |
0 |
1506 |
Morgan Stanley
|
| Explain about the Task Manager. |
1 |
1510 |
Morgan Stanley
|
| What is the Real-Time System? |
3 |
1512 |
Zomato
|
| Interrupt handlers |
1 |
1514 |
Bhel-2004
|
| Busy waiting solution of critical section |
1 |
1517 |
Barc-2006
|
| What is multiprocessing? |
1 |
1522 |
Oracle
|
| What is Fault Tolerance System |
1 |
1535 |
SAP Labs
|
| What is Direct Access Method? |
1 |
1536 |
Zomato
|
| Give the examples of software interrupts. |
2 |
1541 |
isro
|
| Describe the Buddy system of memory allocation. |
1 |
1557 |
Linkedin
|
| Differences between Windows and Linux |
1 |
1562 |
Morgan Stanley
|
| Condition of multilevel paging |
1 |
1571 |
bhel | cil
|
| What are loosely coupled systems? |
1 |
1572 |
Cognizant
|
| What is the cause of thrashing? How does the system detect thrashing? |
1 |
1572 |
Zomato
|
| What is meant by arm-stickiness? |
2 |
1574 |
TCS
|
| mechanism of installing package in linux |
6 |
1576 |
Thoughtworks
|
| How a Quad Core processor works? |
1 |
1587 |
Microsoft
|
| Memory allocation and deallocation functions. |
3 |
1594 |
Adobe
|
| What is write lock and what are the conditions of it? |
2 |
1599 |
Amazon
|
| 32 bit and 64 bit |
3 |
1599 |
Adobe
|
| What is Translation Lookaside Buffer(TLB)? |
2 |
1612 |
|
| Explain Reader Writer problem in synchronization with code. |
3 |
1613 |
|
| What is shared memory? |
2 |
1624 |
Cisco
|
| Design philosophers dining problem. |
2 |
1627 |
Thoughtworks
|
| What are benefits of virtual memory? |
1 |
1635 |
Xome
|
| Inter-process communication |
3 |
1638 |
Samsung
|
| What is IPR(Inter Process Communication)? |
2 |
1642 |
Amazon
|
| What do you know about memory management in Operating Systems? |
2 |
1651 |
Amazon | Expedia
|
| What is graceful degradation? |
1 |
1651 |
Cognizant
|
| What is transient ? |
3 |
1653 |
Adobe
|
| Device Drivers |
1 |
1669 |
Nhai-2012
|
| How a task manager works in Windows? |
1 |
1677 |
Microsoft
|
| What is registry ? |
2 |
1718 |
Adobe
|
| Explain producer consumer synchronization problem with its code. |
1 |
1733 |
|
| Different types of interrupt levels |
1 |
1741 |
HP
|
| Mutex vs Semaphores |
2 |
1765 |
Intel | Oracle
|
| What is DLM? |
1 |
1765 |
Cognizant
|
| Give a real life example to show difference between deadlock prevention and deadlock avoidance . |
1 |
1773 |
|
| Explain concept of fork? |
4 |
1775 |
Oracle
|
| What are Monitors ? |
1 |
1776 |
Qualcomm
|
| Segmentation |
5 |
1776 |
Gail-2015 | Samsung
|
| What is difference between virtual and physical address? |
1 |
1776 |
Philips
|
| How are big files stored in memory? |
1 |
1784 |
Amazon
|
| What is pure demand paging? |
1 |
1785 |
treebo
|
| Select correct option (MCQ) |
17 |
1786 |
Samsung
|
| What is Deadlock Detection ? |
1 |
1792 |
Qualcomm
|
| What is a semaphore? |
3 |
1793 |
Intel
|
| Algorithm for Compaction |
1 |
1799 |
Adobe | Cisco
|
| What is kernel? |
3 |
1801 |
Bloomberg
|
| Direct Memory Access (DMA) |
1 |
1802 |
Air-India
|
| Which type of scheduling is used when 10 computers are shared among 20 users |
3 |
1805 |
Morgan Stanley
|
| Page fault |
2 |
1811 |
Amazon
|
| What is stack prediction ? |
1 |
1811 |
Paytm
|
| What are different ways in which cancellation of target thread may occur? |
2 |
1816 |
|
| Difference between LRU and LFU |
1 |
1822 |
Rivigo
|
| How to implement SRTFS (preemptive SJF). |
2 |
1829 |
Amazon
|
| What does an Inode Contain? |
2 |
1829 |
D-E-Shaw
|
| Implement Virtual Memory (by code). |
2 |
1834 |
Adobe
|
| Bing Search |
3 |
1835 |
Microsoft
|
| What is Compaction? |
1 |
1839 |
Cisco
|
| What is Banker's algorithm? |
1 |
1846 |
Oracle
|
| Suspend ready and suspend wait state |
2 |
1848 |
iocl
|
| Heap and stack allocation during context switching |
1 |
1851 |
Samsung
|
| What is meant by 3.3GHz processor? |
9 |
1857 |
UnitedHealth Group
|
| Two layer caching |
0 |
1859 |
Amazon
|
| What is paging? |
3 |
1859 |
Oracle | Payu
|
| What are the different page replacement algorithms? Explain each of them with small example. |
1 |
1868 |
Oracle
|
| Difference between Chrome and Firefox |
2 |
1890 |
Morgan Stanley
|
| Will a 16 bit program run on 64 bit OS without any problem ? |
4 |
1893 |
Amazon
|
| Why is it important for the scheduler to distinguish I/0-bound programs from CPU-bound programs? |
2 |
1895 |
|
| What is Processor Affinity ? |
2 |
1903 |
|
| What is Throughput, Turnaround time, waiting time and Response time? |
1 |
1911 |
Expedia
|
| What is TLB? |
3 |
1925 |
Swiggy
|
| What is the cause of thrashing? |
2 |
1926 |
Zomato
|
| Explain segmentation fault ? |
2 |
1929 |
D-E-Shaw
|
| What is a device queue? |
3 |
1942 |
TCS
|
| What is difference between demand paging and pure demand paging? |
1 |
1946 |
treebo
|
| What are the differences between a trap and an interrupt? |
2 |
1957 |
|
| Which scheduling results into starvation? |
7 |
1972 |
Directi
|
| Difference between 32-bit and 64-bit windows. |
3 |
1982 |
Adobe
|
| Round robin load Balancer |
1 |
1996 |
Amazon
|
| What is a data register? |
2 |
2004 |
Kronos Incorporated
|
| What is dynamic loading? |
1 |
2012 |
Yahoo
|
| What are system calls |
3 |
2018 |
HP
|
| Explain difference between multi-threading and multi-tasking? |
2 |
2039 |
Oracle
|
| What is Concurrent programming ? |
1 |
2044 |
Visa
|
| What is Concurrency? |
1 |
2047 |
Cisco
|
| Write Lock in OS |
3 |
2050 |
Amazon
|
| How to implement monitors using semaphores? |
2 |
2056 |
|
| Which type of scheduling is done in Windows 10 OS? |
1 |
2062 |
Morgan Stanley
|
| OS: Deadlock and Virtual Memory |
1 |
2063 |
Adobe
|
| .What is an interrupt? |
2 |
2088 |
TCS
|
| Why sockets are preferred over Shared Memory? |
3 |
2093 |
Amazon
|
| When a single threaded application is converted to multi-threaded applications, what kind of changes |
1 |
2098 |
Amazon
|
| Difference between Pendrive and Hard disks |
1 |
2103 |
HP
|
| Critical Section in OS |
2 |
2111 |
Amazon
|
| What are different scheduling criterias? |
5 |
2115 |
|
| Process Control Block - Operating System |
15 |
2129 |
|
| What is Belady's Anomaly? |
1 |
2165 |
|
| Physical Address vs. Logical Addresses |
1 |
2166 |
|
| Memory allocation to a newly formed file. |
6 |
2172 |
Amazon
|
| Difference between internal and external Fragmentation? |
1 |
2216 |
Intuit
|
| What is makefile? |
2 |
2233 |
Adobe
|
| What is bounded buffer problem? |
1 |
2234 |
Xome
|
| Implement a LRU cache, extended for LRU with ttl at each block. |
1 |
2265 |
Amazon
|
| What is difference between micro kernel and macro kernel? |
2 |
2269 |
|
| What are the differences among short-term, medium-term, and long-term scheduling.? |
2 |
2282 |
|
| Explain degree of multiprogramming ? |
4 |
2300 |
Amdocs
|
| Explain different services of an Operating System. |
1 |
2343 |
SAP Labs
|
| What is the Dispatcher? |
5 |
2348 |
Zomato
|
| What are benefits of multithreaded programming? |
9 |
2365 |
|
| What is dynamic linking? |
1 |
2372 |
Yahoo
|
| Internal fragmentation and External fragmentation |
1 |
2391 |
|
| What is cloud computing ? |
6 |
2401 |
Adobe
|
| Overlays in Operating system |
1 |
2412 |
Barc-2003
|
| What is Load Balancer ? |
3 |
2425 |
Adobe | Directi
|
| Define deadlock and race condition. |
4 |
2431 |
Amazon | Yahoo
|
| Difference between 64-bit and 32-bit OS |
6 |
2450 |
UnitedHealth Group
|
| Demand Paging |
5 |
2476 |
Nhai-2012 | Samsung
|
| What is fragmentation? Different types of fragmentation? |
2 |
2482 |
Zomato
|
| Inter Process Communication : Shared Memory and Sockets. |
2 |
2485 |
Amazon
|
| Difference between multi -tasking, multi-processing and multiprogramming |
4 |
2526 |
Amazon
|
| Why is page size always power of 2? |
2 |
2533 |
Intuit
|
| ISRO 2017 OS Question |
28 |
2533 |
isro
|
| What is context Switching? |
1 |
2549 |
Oracle
|
| Where shared memory is stored (in user space or kernel space) ? and why ? |
3 |
2582 |
Amazon
|
| Message Passing |
3 |
2591 |
Microsoft
|
| Paging with segmentation |
1 |
2602 |
Barc-2003
|
| What is tail command? |
6 |
2625 |
Microsoft
|
| Difference btwn Counting and Binary semaphore |
2 |
2632 |
Air-India
|
| What is busy wait? |
3 |
2681 |
Bloomberg
|
| Semaphore in OS |
4 |
2704 |
Amazon | Nhai-2012 | Oracle
|
| Calculate number of page faults |
2 |
2714 |
Air-India
|
| What are the differences between paging and segmentation? |
5 |
2759 |
Linkedin
|
| Preemption of programs |
4 |
2765 |
Google
|
| What is multiprogramming ? |
2 |
2787 |
Samsung
|
| Explain process state Diagram ? |
1 |
2801 |
Qualcomm
|
| What is cycle stealing? |
2 |
2811 |
isro
|
| What is host file in Windows? |
4 |
2824 |
Adobe
|
| What is Mutual Exclusion? |
1 |
2829 |
Cisco
|
| Design a geographically partitioned multi-player card game |
0 |
2868 |
Amazon
|
| What is compaction is OS? |
2 |
2953 |
Synopsys
|
| If time slice is greater than the execution time of largest execution time process than round robin |
15 |
2973 |
Samsung
|
| Difference between multi programming and multitasking . |
2 |
2991 |
|
| What steps are taken when the os shifts from one-thread execution to another? |
4 |
3128 |
Amazon
|
| Explain spin lock |
2 |
3141 |
Dell
|
| what is Race condition ? |
2 |
3204 |
Visa
|
| Mutual exclusion and race condition |
8 |
3315 |
Google
|
| Number of Processes with one Fork |
19 |
3378 |
Microsoft
|
| Processes vs Threads |
2 |
3619 |
Adobe | Veritas
|
| What is Mutex in OS? |
2 |
3734 |
Expedia
|
| OS scheduling Algorithms |
4 |
3866 |
Amazon
|
| Difference between Operating System and Kernel |
4 |
4114 |
Microsoft
|
| Design a Netflix type system |
0 |
4428 |
Amazon
|
| Race Condition in OS |
5 |
4857 |
Amazon
|
| Virtual Memory and Paging |
5 |
6202 |
Adobe | Amdocs | Aristrocrat Gaming | Cerner | D-E-Shaw | HP | HP R&D | Intel | Kronos Incorporated | Morgan Stanley | PayPal | Qualcomm | Quikr | SAP Labs | Synopsys | VMWare
|
| Difference between Process and thread. |
15 |
12193 |
Adobe | Amazon | Microsoft | Samsung
|
| Thrashing in OS |
13 |
15174 |
Adobe | Amazon | Arcesium | Cisco | D-E-Shaw | Dell | Directi | eBay | Google | HSBC | Microsoft | Oracle | Paxcel Technologies | Sapient | Streamoid Technologies | Synopsys
|
| Deadlock in OS |
29 |
15911 |
Wissen | Adobe | Amazon | Cisco | Groupon | Microsoft | Philips | Tolexo
|
