Information Retrival Techniques Set 7

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This set of Information Retrival Techniques Multiple Choice Questions & Answers (MCQs) focuses on Information Retrival Techniques Set 7

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