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Answers by minal

7 votes
Consider a uniprocessor system executing three tasks $T_{1}, T_{2}$ and $T_{3}$ each of which is composed of an infinite sequence of jobs (or instances) which arrive periodically at intervals of $3$, $7$ and $20$ milliseconds, respectively ... the 1st millisecond and task preemptions are allowed, the first instance of $T_{3}$ completes its execution at the end of_____________________milliseconds.
answered Jun 17, 2015 in Operating System 18.6k views
2 votes
The process of assigning similar objects/entities to object/entity type known as a)Classification b)Instantiation c)Specialization d)Generalization
answered Jun 4, 2015 in Databases 321 views
9 votes
Fetch_And_Add(X,i) is an atomic Read-Modify-Write instruction that reads the value of memory location $X$, increments it by the value $i$, and returns the old value of $X$ ... $L$ can take on a non-zero value when the lock is actually available works correctly but may starve some processes works correctly without starvation
answered Jun 1, 2015 in Operating System 15.7k views
1 vote
answered May 28, 2015 in Operating System 273 views
0 votes
5 batch jobs A through E arrive at a computer center at almost same time. They have estimated running times of A:10, B:6, C:2, D:4 and E:8 minutes. Their priorities are A:3,B:5,C:2,D:1 and E:8 min. Their(externally determined) priorities are A:3,B:5,C:2,D ... will be the mean process turnaround time under R-R scheduling algorithm(assuming time slice of 1 min)? a) 22 min b) 21 min c) 18 min d) none
answered May 28, 2015 in Operating System 188 views
0 votes
What setting of THT (token holding time) will be optimal for a network that had only one station active at a time? Response: 10 ms Depends on the size of the ring Infinity Can't say
answered May 27, 2015 in Computer Networks 180 views
1 vote
Which type of ACK is used in 802.5? Response: Cumulative ACK Independent ACK Piggybacking ACK None of these
answered May 27, 2015 in Computer Networks 249 views
1 vote
check whether it is view serializable or not? schedule S:R1(X),W2(X),W1(X)
answered May 20, 2015 in Databases 3.8k views