Explanation

The valid output statement in C language among the given options is printf("Hello");.

In C programming, the printf() function is the standard library function used to display formatted output on the console.

It is part of the stdio.h header file, which needs to be included in your C program using #include <stdio.h>.

Options A, B, and C (display(), output(), print()) are not standard C library functions for outputting text to the console.

Explanation

long double provides higher precision than double and float for storing real numbers.

It allows more digits after the decimal point, making it suitable for high-accuracy calculations.

Explanation

In an Entity-Relationship (E-R) diagram, a rectangle represents an Entity.

Attributes are shown as ellipses.

Relationships are shown as diamonds.

Explanation

Filing helps in organizing documents for quick access when needed.

It ensures safe storage, easy retrieval, and proper record-keeping in offices.

Explanation

Explanation

Thick strokes are never written upward in shorthand writing.

This ensures clarity and consistency.

As upward strokes are typically lighter for ease of writing.

Explanation

 Both Unshielded Twisted Pair (UTP) and Shielded Twisted Pair (STP) cables use twisted pairs of copper wires to transmit data.

The primary difference is that STP cables have additional shielding around the wires to protect against electromagnetic interference

Whereas UTP cables do not have this extra shielding

Explanation

USB 3.0 is a high-speed connection standard that can transfer data at speeds of up to 5 Gbps (gigabits per second), making it ideal for high data transfer.

Explanation

A Business Intelligence (BI) reporting system is designed to extract, transform, and present data in a format that supports business decision-making. BI systems typically provide features for:

• Filtering data (selecting specific data based on criteria)
• Grouping data (organizing data into categories or aggregations)

BI systems are not designed to modify the underlying data itself.

Explanation

• Data mining refers to the process of automatically discovering patterns, relationships, and insights from large datasets, using various machine learning and statistical techniques.
• It involves analyzing and extracting valuable knowledge or patterns from large databases, which can be used to make informed decisions or predictions.