DSST Introduction to Computing 2 — Questions and Answers
Question 1: Which data representation uses only the digits 0 and 1?
- Octal
- Hexadecimal
- Binary (Correct answer)
- Decimal
Correct answer: Binary
Binary (base-2) uses only the digits 0 and 1 to represent all values.
Question 2: What is the function of the ALU (Arithmetic Logic Unit) in a CPU?
- Store long-term data
- Perform calculations and logical operations (Correct answer)
- Manage input/output devices
- Control the fetch-decode-execute cycle
Correct answer: Perform calculations and logical operations
The ALU handles arithmetic operations (add, subtract) and logical operations (AND, OR, NOT).
Question 3: Which type of software allows users to perform specific tasks such as word processing or spreadsheet editing?
- System software
- Firmware
- Application software (Correct answer)
- Middleware
Correct answer: Application software
Application software is designed for end-user tasks like writing documents or analyzing data.
Question 4: What does the acronym URL stand for?
- Universal Resource Locator
- Uniform Resource Locator (Correct answer)
- Unified Reference Link
- Universal Routing Label
Correct answer: Uniform Resource Locator
URL stands for Uniform Resource Locator, the address used to access resources on the web.
Question 5: Which storage device uses magnetic platters to store data?
- SSD
- USB flash drive
- ROM chip
- HDD (Correct answer)
Correct answer: HDD
A Hard Disk Drive (HDD) stores data on spinning magnetic platters read by a moving arm.
Question 6: In a spreadsheet, a cell reference like B3 indicates:
- Row B, Column 3
- Column B, Row 3 (Correct answer)
- The third byte of block B
- Block 3 in sheet B
Correct answer: Column B, Row 3
Spreadsheet cell references use the column letter first (B) followed by the row number (3).
Question 7: Which protocol is primarily used to send email over the internet?
- FTP
- HTTP
- SMTP (Correct answer)
- DHCP
Correct answer: SMTP
SMTP (Simple Mail Transfer Protocol) is the standard protocol for sending email between servers.
DSST Introduction to Computing 2
Which data representation uses only the digits 0 and 1?