Information Retrival Techniques Set 7 MCQs

Q1 | Choose from the following that are Decision Tree nodes?

decision nodes

end nodes

chance nodes

all of the mentioned

Q2 | Decision Nodes are represented by

disks

squares

circles

triangles

Q3 | Chance Nodes are represented by

disks

squares

circles

triangles

Q4 | End Nodes are represented by

disks

squares

circles

triangles

Q5 | Which of the following are the advantage/s of Decision Trees?

possible scenarios can be added

use a white box model, if given result is provided by a model

worst, best and expected values can be determined for different scenarios

all of the mentioned

Q6 | Which of the given statements is incorrect about global gene regulation?

one way to obtain useful information about a genome is to determine which genes are induced or repressed in response to a phase of the cell cycle

sets of a gene whose expression rises and falls under the same condition are likely to have a related function

sets of a gene whose expression rises and falls under the same condition are likely to have dissimilar functions

cell cycle is a developmental phase, or a response to the environment

Q7 | Which of the given statements is incorrect about Microarray (or microchip) analysis?

it is a new technology in which all of the genes of an organism are represented by oligonucleotide sequences spread out in an 80 x 80 array on microscope slides

the oligonucleotide sequences cannot be synthesized directly on the slide

the oligonucleotides are collectively hybridized to a labeled cdna library prepared by reverse-transcribing mrna from cells

the amount of label binding to each oligonucleotide spot reflects the amount of mrna in the cell

Q8 | In cluster analysis of microarray data– A node is created between the scoring pair, and the gene expressed profiles of these two genes are averaged and the joined elements are weighted by the of elements they contain.

lowest, frequency

average, sequence

lowest, number

highest, number

Q9 | In cluster analysis of microarray data– For n genes, the process is repeated times until a single element remains.

n2

n

n-1

n-4

Q10 | Which of the following is the task of project indicators:

help in assessment of status of ongoing project

track potential risk

help in assessment of status of ongoing project & track potential risk

none of the mentioned

Q11 | Which of the following is caused by careless handling?

systematic error

gross error

random error

none of the mentioned

Q12 | Which of the following is not a fundamental quantity?

length

angle

time

luminous intensity

Q13 | Which standard is fixed and used for industrial laboratories?

international standard

primary standard

secondary standard

working standard

Q14 | Which of the following error is caused by poor calibration of the instrument?

random error

gross error

systematic error

precision error

Q15 | How systematic errors are eliminated?

frequent measurement

replacement of instrument

finding mean of reading

finding variance of reading

Q16 | Which of the following represents an SI unit of luminous intensity?

lumen

candela

dioptre

none of the mentioned

Q17 | Starting position of an object is represented as x=5.1±0.2m and finishing position as y=6.9±0.3m. What will be the displacement and error in displacement?

displacement = 1m, error = 0.5m

displacement = 2m, error = 0.36m

displacement = 1.8m, error = 0.36m

displacement = 1.5m, error = 0.4m

Q18 | The maximum number of indexes on MyISAM table is

0

1

2

more than 1

Q19 | The data rows of a MyISAM table are stored in

data file

index file

log file

error file

Q20 | In a single table (with 10 columns) join query the number of values needed to examine per column is

1

10

2

Q21 | FROM tbl_1 INNER JOIN tbl_2 WHERE tbl_1.i1 = tbl_2.i2;

14

2

1

48

Q22 | MyISAM, InnoDB, TRANSACTION

0

1

2

3

Q23 | If a column contains 7 values and 6 distinct values, the cardinality is

7

6

13

1

Q24 | For a table having 4 columns, the number of columns to which hash function is applied when using hash indexes is

1

2

3

4

Q25 | The slow query log is written as

numbers

text

image

graph