Question
In a DBMS using a "Strict Two-Phase Locking" protocol,
when is a transaction allowed to release its locks?Solution
Only after it has committed or aborted
Train A departs from a station at a speed of 195 km/h, 16 hours following the departure of Train B. It takes Train A 10 hours to catch up to Train B. Ca...
The running speed of a train is 100 km/hr. When stoppages are considered, its average speed becomes 80 km/hr. Calculate the time the train halts every h...
Train P measures 120 meters in length and moves at a speed of 5 meters per second, while Train Q is 90 meters long and travels at a speed of 10 meters p...
A train travelling with a speed of 36 km/h can cross a pole in 9 seconds. Find the time taken by the train to cross a 180 metres long platform if the sp...
A person sees a train passing over 3 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 5 mins. What is th...
Distance between two stations ‘P’ and ‘Q’ is 620 km. Train A starts from ‘P’ at 8:30 a.m. with the speed of 32 km/hr. and train B starts fro...
Train A and B can cross a 350 meters long platform in the same time. The length of Train A is 250 meters and the speed of Train B is 3/2 times the speed...
Train 'P' starts its journey from a point at 6:00 pm, traveling at an average speed of 48 km/h. Train 'Q' departs from the same point towards Train 'P' ...
600 metre long train ‘A’ is running with a speed of 57.6 km/hr. Train ‘B’ which is 641 metre long is running with a speed of 90 km/h in opposite...
A train running with a speed of 45 km/hr can cross a pole in 10 seconds and a platform in 20 seconds. Find the length of the platform.
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