Test Preparation on UGC NET Computer Science Practice Set-2
1.
The TRAP interrupt mechanism of the 8085 microprocessor
2.
The ALE line of an 8085 microprocessor is used to
3.
Consider a 8085-based system operating with the following specifications: Crystal frequency?6 MHz ROM map?000 through 07FF RAM rnap?1000 through 17FF ROM requires 1 wait state RAM requires no wait state Assume the content of PC is 0200; The instruction cycle time needed for the instruction 0R1 A, 22 is
4.
Which of the following fields in the structure stat, has information about the permission setting of a file?
5.
With a clock frequency of 3 MHz, the execution time for the instruction, ?STA addr? of 8085 will be
6.
Which of the following statement is false regarding SQL statement?
7.
One can display all columns of data in a table by following the SELECT keyword with?
8.
Which of the following algorithms exhibits the unnatural behaviour that, minimum number of comparisons are needed if the list to be sorted is in the reverse order and maximum number of comparisons are needed if they are already in order
9.
Which of the following sorting algorithm has the worst time complexity of nlogn?
10.
Which of the following sorting methods sorts a given set of items that is already in order or in reverse order with equal speed?
11.
Which of the following algorithms solves the all-pair shortest path problem ?
12.
Consider the graph in Fig 1 2 3 The third row in the transitive closure of the above graph
13.
The eccentricity of node labelled 5 in the graph in Fig is
14.
The centre of the graph in Qn 93 is the node labelled
15.
Pick the incorrect statements
16.
Pick the correct statements
17.
Pick the incorrect statements in error retransmission used in continuous ARQ method
18.
In the carrier sense network if the prevailing condition is a ?channel busy?, then which of the following are correct ?
19.
Which of the following are non-polling system?
20.
Pick the systems that can be used in both priority and non-priority modes
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