MCQs

Q271: In Flutter, the Scaffold() widget is typically used within which function?

• A) initState()
• B) dispose()
• C) build()

Q272: Where are table names and field attributes stored in a database management system?

• A) Table
• B) Datasheet view
• C) Data dictionary

Q273: Which of the following is a passive topology?

• A) Bus
• B) Star
• C) Ring

Q274: What is the number of bits in ASCII 7-bit code?

• A) 6
• B) 7
• C) 8

Q275: What are the main functions of the CPU?

• A) Process input
• B) Store data
• C) All of these

Q276: RAM is a ______ memory.

• A) Permanent
• B) Volatile
• C) Primary Memory

Q277: DEO is abbreviation of _____?

• A) Digital Entry Operator
• B) Data Entry Operator
• C) Data Entry Officer

Q278: Which of the following is an output device?

• A) Keyboard
• B) Printer
• C) Mouse

Q279: Which of following is not a valid zoom percentage in Excel?

• A) 10
• B) 100
• C) 500

Q280: Which of the following statements is correct about adding/deleting columns and rows in a database or spreadsheet?

• A) You cannot add new columns or rows
• B) You can add and delete columns/rows as needed
• C) You can add columns/rows but cannot delete them