KVS PGT Computer Science Question Paper - January 2017 (Question No 11-15)
Q 11. The problem of indefinite
blockage of low-priority jobs in general priority scheduling algorithm can be
solved using :
1)
Dirty
bit
2)
Compaction
3)
Aging
4)
Swapping
Answer : 3) Aging
Q 12. What is garbage collection in
the context of Java ?
1)
The
Operation System periodically deletes all of the Java files available on the
system.
2)
When all references to an object are
gone, then the memory used by the object is automatically reclaimed.
3)
Any
java package imported in a program and not being used, is automatically
deleted.
4)
The
Java Virtual Machine (JVM) checks the output of any Java program and
deletes anything that does not make
sense at all.
Answer : 2) When all references to an object are gone, then the memory
used by the object is automatically reclaimed.
Q 13. Which of the following
represents the life-cycle of software development?
1)
Analysis -->Design -->Coding -->Testing -->Operation and Maintenance
2)
Analysis
-->Design -->Coding-->Operation
and Maintenance-->Testing
3)
Design
-->Analysis-->Coding-->Testing-->Operation and Maintenance
4)
Design
-->Analysis -->Coding -->Operation and Maintenance --> Testing
Answer : 1) Analysis -->Design -->Coding -->Testing -->Operation and Maintenance
Q 14. In a relational database
model, cardinality of a relation means :
1)
The number of tuples
2)
The
number of tables
3)
The
number of attributes
4)
The
number of constraints
Answer : 1) The number of tuples
Q 15. The 10Base5 cabling is also
known as __________
1)
Thick Ethernet
2)
Gigabit Ethernet
3)
Thin
Ethernet
4)
Fast
Ethernet
Answer : 1) Thick Ethernet
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