Completed
Unit 1 Revision
Questions From This Challenge
Q1mcq1 mark
Which of the following is the correct order of memory units from smallest to largest?
Byte, KB, MB, GB ✓
KB, MB, Byte, GB
MB, KB, GB, Byte
GB, MB, KB, Byte
Q2mcq1 mark
A student has a 2 GB pen drive that already contains 1536 MB of data. How many megabytes of free space remain?
512 MB ✓
464 MB
1024 MB
256 MB
Q3mcq1 mark
Which of these correctly pairs a memory type with its property?
Cache memory - very fast but small capacity, kept between CPU and RAM ✓
Secondary storage - volatile and directly executed by the CPU
RAM - non-volatile and used for permanent storage
ROM - loses content when power is switched off
Q4mcq1 mark
Which of the following is a language translator, not an operating system component?
Compiler ✓
Memory manager
File manager
Process scheduler
Q5mcq1 mark
A student writes a Python program. Which type of software is used to translate it into a form the computer can execute?
A language translator (interpreter/compiler) ✓
An operating system's GUI
An input device driver
A device driver for the monitor
Q6mcq1 mark
Which of these is an example of application software?
A presentation tool like PowerPoint ✓
The operating system's kernel
A device driver for a scanner
A disk formatting utility
Q7mcq1 mark
For Boolean inputs A=0 and B=1, what is the output of an XOR gate?
1 ✓
0
Undefined
2
Q8mcq1 mark
Applying Boolean algebra, NOT(A OR B) AND (A OR B) will always evaluate to:
0 (always false) ✓
1 (always true)
A
B
Q9mcq1 mark
Which gate's output is the exact logical complement of the OR gate's output for every input combination?
NOR ✓
NAND
XOR
AND
Q10mcq1 mark
Convert the decimal number 45 to binary.
101101 ✓
100101
101100
110101
Q11mcq1 mark
What is the decimal value of the hexadecimal number 2F?
47 ✓
45
29
31
Q12mcq1 mark
Which encoding scheme would be most appropriate to correctly display a document containing both English and Hindi (Devanagari) text on a modern computer?
Unicode ✓
ASCII
Only ISCII
Binary code
Q13mcq1 mark
Which statement correctly distinguishes a compiler from an interpreter in terms of error reporting?
A compiler reports all syntax errors together after scanning the whole program, while an interpreter typically stops at the first error it encounters during line-by-line execution ✓
A compiler executes code line by line while an interpreter translates the whole program at once
Both compilers and interpreters produce identical executable files
Interpreters cannot detect any errors in a program
Q14mcq1 mark
A computer's operating system crashes and no longer boots. Which of the following is most directly affected first?
The system's ability to manage hardware resources and run any software ✓
The physical dimensions of the hard disk
The speed of the internet connection
The number of USB ports available
Q15mcq1 mark
Which of these correctly lists devices in the order: input device, processing unit, output device?
Keyboard, CPU, Monitor ✓
Monitor, CPU, Keyboard
CPU, Keyboard, Monitor
Keyboard, Monitor, CPU