Top 350+ Solved Information Retrival Techniques MCQ Questions Answer

From 166 to 180 of 325

Q. Which method is used to verifythe version number?

a. changeversion()

b. readtransaction()

c. transaction()

d. executesql()

  • a. changeversion()

Q. Which object is created for read-only transaction?

a. foo object

b. sqltransactionsync

c. databasesync object

d. sqltransaction

  • b. sqltransactionsync

Q. insertId attribute returns                          

a. column id

b. row id

c. user’s id

d. database id

  • b. row id

Q. Which error is invoked when SQLTransactionCallback does not execute?

a. insertiid

b. rows

c. rowsaffected

d. length

  • c. rowsaffected

Q. Which of the error is raised when the quantity of data is too much?

a. too_large_err

b. unknown_err

c. timeout_err

d. quota_err

  • a. too_large_err

Q. What is the required argument to openDatabase?

a. version number

b. database name

c. size of a database

d. text description

  • a. version number

Q. Which attribute is used for getting an individual row?

a. results.rows.item(i)

b. insertid

c. rowaffected

d. length

  • a. results.rows.item(i)

Q. What incorporates data, architectural, interface, and procedural representations of the software?

a. design model

b. user’s model

c. mental image

d. system image

  • a. design model

Q. Which of the following adds marginal sums to an existing table?

a. par()

b. prop.table()

c. addmargins()

d. quantile()

  • b. prop.table()

Q. Which of the following lists names of variables in a data.frame?

a. quantile()

b. names()

c. barchart()

d. par()

  • a. quantile()

Q. Which of the following is tool for chi-square distributions?

a. pchisq()

b. chisq()

c. pnorm

d. barchart()

  • c. pnorm

Q. Which of the following groups values of a variable into larger bins?

a. cut

b. col.max(x)

c. stem

d. which.max(x)

  • a. cut

Q. Which of the following determine the least- squares regression line?

a. histo()

b. lm

c. barlm()

d. col.max(x)

  • b. lm

Q. Which of the following is tool for checking normality?

a. qqline()

b. qline()

c. anova()

d. lm()

  • a. qqline()

Q. Which of the following is lattice command for producing boxplots?

a. plot()

b. bwplot()

c. xyplot()

d. barlm()

  • b. bwplot()
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