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641

If the try block does not throw any exception, the catch clauses following it are still executed.

TRUE FALSE Medium

a. TRUE

b. FALSE

Information Technology (802) · Class 12 · Sep 26, 2026

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FALSE

Explanation: If no exception is thrown, the catch clauses are NOT executed; program execution continues after the last catch clause.

642

What is the purpose of the Format > Bullets and Numbering command?

SHORT Easy

Information Technology (802) · Class 11 · Sep 26, 2026

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Explanation: It opens a dialog box allowing the user to select from different kinds of bullets or numbering styles, which are inserted at the location of the cursor in the document.

643

In the relational model, the number of tuples in a relation is called its:

MCQ Easy

a. Degree

b. Domain

c. Cardinality

d. Attribute

Information Technology (802) · Class 12 · Sep 26, 2026

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Cardinality

Explanation: Cardinality of a relation is the number of rows (tuples) it contains.

644

The finally block is optional in a try-catch structure.

TRUE FALSE Medium

a. TRUE

b. FALSE

Information Technology (802) · Class 12 · Sep 26, 2026

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TRUE

Explanation: The finally block is optional; it is commonly used for cleanup code that should run regardless of whether an exception occurred.

645

Differentiate between Move Text and Copy Text operations in a word processor.

SHORT Medium

Information Technology (802) · Class 11 · Sep 26, 2026

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Explanation: Move Text removes the selected text from its current location (using Cut) and places it at a new location (using Paste), so it no longer exists at the original location. Copy Text duplicates the selected text at a new location while retaining it at the original location.

646

The set of all possible values that an attribute may contain is called its:

MCQ Easy

a. Degree

b. Cardinality

c. Domain

d. Tuple

Information Technology (802) · Class 12 · Sep 26, 2026

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Domain

Explanation: The Domain of an attribute is the set of all atomic (indivisible) values that attribute may take.

647

How are exceptions handled in Java? Name the key keywords involved.

SHORT Medium

Information Technology (802) · Class 12 · Sep 26, 2026

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Explanation: Exceptions in Java are handled using try, catch, and (optionally) finally blocks. The try block surrounds code that might throw an exception; the catch block(s) handle specific exception types; the optional finally block always executes when the try block exits.

648

List the key tasks performed by each of the following tabs in OpenOffice Writer: File, Edit, View, Insert, Format, Table, Tools.

LONG Medium

Information Technology (802) · Class 11 · Sep 26, 2026

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Explanation: File: apply commands to the current document such as create, save, print, open, close. Edit: perform editing operations like cut, copy, paste, find & replace, undo, redo. View: control how the document is displayed on screen (status bar, ruler, sidebar). Insert: insert new elements like page number, date, header, footer, tables, hyperlinks. Format: format the layout and content of the document (character, paragraph, bullets, page, alignment). Table: insert, edit, and delete tables and their rows/columns. Tools: check spelling/grammar and count words/characters in the document.

649

Which of the following is a characteristic of relations in the relational model?

MCQ Medium

a. Ordering of tuples is significant

b. No two tuples in a relation can be identical

c. Attribute values can be non-atomic (divisible)

d. Ordering of attributes must be maintained

Information Technology (802) · Class 12 · Sep 26, 2026

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No two tuples in a relation can be identical

Explanation: No two tuples of a relation should be identical; ordering of tuples and attributes is not significant, and attribute values must be atomic.

650

Write a Java code fragment demonstrating exception handling for a division by zero, using a divide() method that takes two integer parameters.

LONG Medium

Information Technology (802) · Class 12 · Sep 26, 2026

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Explanation: int divide(int dividend, int divisor) { return dividend/divisor; } ... try { int quotient = divide(10,0); System.out.println(quotient); } catch (Exception e) { System.out.println(e.getMessage()); }

651

In Calc's Standard Filter, which operator requires that ALL specified filter criteria be satisfied for a row to be displayed?

MCQ Medium

a. OR

b. AND

c. NOT

d. XOR

Information Technology (802) · Class 11 · Sep 26, 2026

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AND

Explanation: The AND operator in Standard Filter requires all specified criteria to be true for a row to be included in the result.

652

A special value used to represent an attribute value that is unknown, not applicable, or unavailable is called:

MCQ Easy

a. Zero

b. Blank

c. NULL

d. Undefined

Information Technology (802) · Class 12 · Sep 26, 2026

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NULL

Explanation: NULL is used to represent an attribute value that is unknown, not applicable, or unavailable.

653

An assertion in Java is used to:

MCQ Medium

a. Improve runtime performance

b. Identify/detect and correct logical errors by checking that a condition is true at a certain point

c. Handle file input/output

d. Establish database connections

Information Technology (802) · Class 12 · Sep 26, 2026

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Identify/detect and correct logical errors by checking that a condition is true at a certain point

Explanation: An assertion is a mechanism to detect logical errors by checking that a stated condition should be true at a particular point during execution.

654

In Calc's Standard Filter, which operator requires that AT LEAST ONE of the specified criteria be satisfied?

MCQ Medium

a. AND

b. OR

c. NOT

d. IS

Information Technology (802) · Class 11 · Sep 26, 2026

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Explanation: The OR operator requires that at least one of the specified filter criteria is satisfied for a row to be displayed.

655

A Relational DBMS (RDBMS) is a DBMS that is:

MCQ Easy

a. Based on hierarchical data structures

b. Based on the relational model

c. Only used for spreadsheets

d. Not capable of storing numeric data

Information Technology (802) · Class 12 · Sep 26, 2026

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Based on the relational model

Explanation: An RDBMS is a DBMS based on the relational model, e.g., Oracle, MySQL, IBM DB2.

656

Which type of error is thrown when an assertion's expression evaluates to false?

MCQ Medium

a. ArithmeticException

b. AssertionError

c. SQLException

d. NullPointerException

Information Technology (802) · Class 12 · Sep 26, 2026

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AssertionError

Explanation: If the asserted expression is false, an AssertionError is thrown (with an optional custom error message).

657

Which chart type is best suited to display the contribution of each value (slice) to a total?

MCQ Easy

a. Line Chart

b. Bar Chart

c. Pie Chart

d. Scatter Chart

Information Technology (802) · Class 11 · Sep 26, 2026

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Pie Chart

Explanation: A Pie chart displays the contribution of each value (slice) to a total (pie).

658

A set of attributes in a relation for which no two tuples have the same combination of values is called a:

MCQ Medium

a. Candidate key

b. Primary key

c. Superkey

d. Foreign key

Information Technology (802) · Class 12 · Sep 26, 2026

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Superkey

Explanation: A Superkey is a set of attributes for which no two tuples in a relation state have the same combination of values; every relation has at least one (the set of all attributes).

659

By default, are Java assertions enabled or disabled at runtime?

MCQ Medium

a. Enabled by default

b. Disabled by default (must be enabled with the -ea option)

c. Always enabled and cannot be disabled

d. Only enabled in NetBeans

Information Technology (802) · Class 12 · Sep 26, 2026

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Disabled by default (must be enabled with the -ea option)

Explanation: Assertions are disabled by default (since they reduce runtime performance); they can be enabled using the -ea command-line option.

660