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Recent questions tagged deadlock-prevention-avoidance-detection
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31
Consider a system having 22 resources of the same type. These resources are shared by 4 processes P, Q, Rand Shaving peak demands of 3, 6, a and b respectively. How many ordered pairs (a, b) are possible, such that the system is deadlock free?
damz1499
asked
in
Operating System
Nov 7, 2022
by
damz1499
1.1k
views
deadlock-prevention-avoidance-detection
combinatory
counting
0
votes
0
answers
32
operating sysytem
a system has four processes and five allocable resources the current allocation and maximum needs are as follows Allocated Maximum Available process A 10211 11213 00x11 process B 20110 22210 process C 11010 21310 process D 11110 11221
Skarma Angmo
asked
in
Operating System
Sep 16, 2022
by
Skarma Angmo
436
views
operating-system
deadlock-prevention-avoidance-detection
descriptive
0
votes
0
answers
33
Best Open Video Playlist for Deadlock Topic | Operating Systems
Please list out the best free available video playlist for Deadlock from Operating Systems as an answer here (only one playlist per answer). We'll then select the best playlist and add to GO classroom video lists. You can ... standard ones are more likely to be selected as best. For the full list of selected videos please see here
makhdoom ghaya
asked
in
Study Resources
Aug 20, 2022
by
makhdoom ghaya
248
views
missing-videos
go-classroom
free-videos
video-links
deadlock-prevention-avoidance-detection
1
vote
0
answers
34
Deadlocks
Definition of a set of deadlocked Processes: “A set of processes is deadlocked if each process in the set is waiting for an event that only another process in the set can cause.” P1, P2, and P3 have caused deadlock but every process including P4 is in the deadlocked set of processes, isn’t it?
lolalo
asked
in
Operating System
Aug 19, 2022
by
lolalo
579
views
operating-system
deadlock-prevention-avoidance-detection
resource-allocation
0
votes
2
answers
35
Made easy || Operating system
While of the following is incorrect? (a) if a system uses preemptive CPU scheduler then deadlock is not possible in system (b) Deadlock state is an unsafe state. (c) If a system has total ordering of all resource types ... disabled) therefore deadlock should not possible in preemptive scheduling then how can this statement could be incorrect. please clarify the doubt
Shreya2002
asked
in
Operating System
Aug 5, 2022
by
Shreya2002
1.3k
views
operating-system
made-easy-test-series
deadlock-prevention-avoidance-detection
0
votes
0
answers
36
In the "Intersted variable method" for synchronization is there a possiblity of deadlock or spinlock?
JAINchiNMay
asked
in
Operating System
Jun 23, 2022
by
JAINchiNMay
235
views
deadlock-prevention-avoidance-detection
operating-system
process-synchronization
0
votes
1
answer
37
OS Applied Test Series
Suppose there is a (non-virtual memory) system that has only 200 Mb of main memory and there are two processes that make the following sequence of requests: P1 P2 ... ... Request 80Mb; Request 70Mb; ... ... Request 60Mb; Request 80Mb; Consider ... requests 70 Mb. This is a deadlock. Statement 2: There is no possibility of a deadlock. Which of the above statements are correct?
Sagar475
asked
in
Operating System
Jan 26, 2022
by
Sagar475
425
views
operating-system
deadlock-prevention-avoidance-detection
0
votes
1
answer
38
Gate Applied Test Series
Question→ Given a system with 3 processes where each process requires at least 2 resources to complete their execution, then the largest number of resources which will guarantee a deadlock is ___ Answer Given is: 1
lalitver10
asked
in
Operating System
Jan 22, 2022
by
lalitver10
706
views
operating-system
deadlock-prevention-avoidance-detection
1
vote
2
answers
39
made easy test series - deadlock - operating systems
Consider a system having ‘m’ resources of the same type. The resources are shared by 3 processes A, B and C which have peak time demands of 5, 7 and 4 respectively. The minimum value of ‘m’ that will ensure that deadlock will never occur is _____.
atulcse
asked
in
Operating System
Jan 12, 2022
by
atulcse
957
views
operating-system
made-easy-test-series
deadlock-prevention-avoidance-detection
1
vote
1
answer
40
Test Series- Applied:
Given a system with 3 processes where each process requires at least 2 resources to complete their execution, then the largest number of resources which will guarantee a deadlock is ___ I answered it as 3. Because it asked for maximum which is not correct. Can someone help me in this.
ramakrushna
asked
in
Operating System
Dec 20, 2021
by
ramakrushna
402
views
operating-system
test-series
deadlock-prevention-avoidance-detection
0
votes
1
answer
41
test series doubt
hi, C an anyone answer this question? @arjun sir, According to me there is no mutual exclusion and hence deadlock is not created.
rish1602
asked
in
Operating System
Nov 10, 2021
by
rish1602
413
views
made-easy-test-series
operating-system
deadlock-prevention-avoidance-detection
1
vote
1
answer
42
Applied Test Series
Given a system with 3 processes where each process requires at least 2 resources to complete their execution, then the largest number of resources which will guarantee a deadlock is ___
LRU
asked
in
Operating System
Nov 5, 2021
by
LRU
447
views
test-series
operating-system
deadlock-prevention-avoidance-detection
0
votes
1
answer
43
self doubt - deadlock detection - OS
Isn’t it guaranteed that deadlock can be detected when there are multiple instances of resources? Sure, it cannot be detected only by looking for cycles in a resource allocation graph, but aren’t there algorithms that will always detect a deadlock, if it is there?
atulcse
asked
in
Operating System
Nov 4, 2021
by
atulcse
305
views
operating-system
deadlock-prevention-avoidance-detection
2
votes
1
answer
44
Applied Test Series
In a system which has only 3 processes, there are 2 copies of R1 resource, 3 copies of R2 resource. Say, in the current snapshot of the system, Process P1 holds 2 copies of resource R1 and needs 1 copy of R2 to complete its execution. P2 holds 2 copies ... at a much later point in time. The probability that the system will be in a deadlock again is ____ (up to 2 decimal places).
LRU
asked
in
Operating System
Oct 21, 2021
by
LRU
735
views
test-series
operating-system
deadlock-prevention-avoidance-detection
5
votes
2
answers
45
Applied Test Series
A given system has 13 processes and x number of copies of a resource r. Out of 13 processes, 6 processes require 2 resources each, 3 processes require 3 resources each and the remaining processes require 5 resources each. The minimum value of x will guarantee that the system is deadlock free is ____.
LRU
asked
in
Operating System
Oct 10, 2021
by
LRU
545
views
test-series
operating-system
deadlock-prevention-avoidance-detection
numerical-answers
2
votes
2
answers
46
Applied Test Series
Given 5 processes and R copies of total resources in a system, each process requires 7 copies of resources to complete its execution. The maximum value of R to have deadlock is ___
LRU
asked
in
Operating System
Oct 10, 2021
by
LRU
702
views
test-series
operating-system
deadlock-prevention-avoidance-detection
numerical-answers
2
votes
1
answer
47
Applied Test Series
There are 5 processes in a system where each of them has a requirement of x resources. In the worst case, y number of resources would ensure that the system is deadlock free. The system later on has 7 processes that require x resources each. In the worst case, (y + 4) resources would ensure that the system is deadlock free. The value of x is ______
LRU
asked
in
Operating System
Oct 10, 2021
by
LRU
475
views
test-series
operating-system
deadlock-prevention-avoidance-detection
numerical-answers
1
vote
1
answer
48
Applied Roots Topic Test
Which of the following are true ? Deadlock detection in single instance resource type is guaranteed. Deadlock detection in multi instance resource type is guaranteed. My answer : Both A and B because deadlock detection in single instance resource type can be done using ... or will enter deadlock from the current state. Given answer : Only A. Can't get why option B is false.
Naman9495
asked
in
Operating System
Sep 19, 2021
by
Naman9495
1.3k
views
operating-system
deadlock-prevention-avoidance-detection
35
votes
2
answers
49
GATE CSE 2021 Set 2 | Question: 43
Consider a computer system with multiple shared resource types, with one instance per resource type. Each instance can be owned by only one process at a time. Owning and freeing of resources are done by holding a global lock $(L)$. ... not occur The scheme may lead to live-lock The scheme may lead to starvation The scheme violates the mutual exclusion property
Arjun
asked
in
Operating System
Feb 18, 2021
by
Arjun
9.7k
views
gatecse-2021-set2
multiple-selects
operating-system
deadlock-prevention-avoidance-detection
2-marks
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