Showing:
Class 9 (323 questions)
-
by GIANSH GUPTA
· Class 9
Which function of the OS involves allocating and deallocating memory space to programs, ensuring efficient memory usage?
A. Device Management.
B. Memory Management.
C. Security.
D. Job Accounting.
Cyber
Operating System Functions
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Which component of an operating system is responsible for managing the execution of processes, ensuring efficient CPU utilization?
A. File System
B. Processor Management/Scheduling
C. User Interface
D. Device Drivers
Cyber
Operating System Functions
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Which of the following is NOT a core function of an operating system?
A. Process Management.
B. Memory Management.
C. Compiling Code.
D. File System Management.
Cyber
Operating System Functions
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
What is the primary role of an operating system?
A. To compile source code into executable files.
B. To manage hardware resources and provide services to applications.
C. To design user interfaces only.
D. To edit documents and create presentations.
Cyber
Operating System Functions
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
What is the "compression ratio" in data compression?
A. The sum of original and compressed file sizes.
B. The ratio of the compressed file size to the original file size.
C. The ratio of the original file size to the compressed file size.
D. The speed of compression.
Cyber
Data Compression
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Which of the following is INCORRECT regarding Data Compression?
A. Lossy compression gives a higher compression ratio than lossless.
B. Lossless compression is reversible.
C. Lossy compression is ideal for text documents.
D. ZIP is a commonly used lossless format.
Cyber
Data Compression
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
A text file containing a repeated sequence of characters is best compressed using which technique?
A. Run-Length Encoding (RLE)
B. JPEG
C. MP3
D. Transform Coding
Cyber
Data Compression
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Which type of compression allows the exact original data to be reconstructed upon decompression?
A. Lossy Compression
B. Lossless Compression
C. JPEG Compression
D. MP3 Compression
Cyber
Data Compression
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
What is the primary purpose of data compression?
A. To increase the resolution of an image.
B. To reduce the file size for saving storage space or speeding up transmission.
C. To encrypt data for security.
D. To delete files permanently.
Cyber
Data Compression
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
If a computer uses 16-bit Unicode for characters, how many different characters can it represent?
A. 16
B. 256
C. 65,536
D. 1024
Cyber
Data Representation
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
13. Which of the following lists the units of storage in ascending order?
A. Bit, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte
B. Byte, Bit, Megabyte, Kilobyte, Gigabyte, Terabyte
C. Bit, Byte, Megabyte, Kilobyte, Terabyte, Gigabyte
D. Terabyte, Gigabyte, Megabyte, Kilobyte, Byte, Bit
Cyber
Data Representation
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
What does the "WORM" acronym stand for in storage devices?
A. Write Once Read Many
B. Write Often Read Many
C. Write Once Read Memory
D. Working Only Real Memory
Cyber
Data Representation
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Which character encoding standard is used to represent characters from almost all languages in the world?
A. ASCII
B. Unicode
C. BCD
D. EBCDIC
Cyber
Data Representation
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Which of the following number systems is used directly by computer hardware?
A. Decimal
B. Hexadecimal
C. Binary
D. Octal
Cyber
Data Representation
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Which is the smallest unit of computer memory?
A. Byte
B. Bit
C. Megabyte
D. Kilobyte
Cyber
Data Representation
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Find the value of (64)^1/6
A. 8
B. 4
C. 2
D. 32
Maths
Number Systems
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Which of the following is an irrational number?
a) √23
b) √225
c) 0.3796
d) 7.478478...
Maths
Number Systems
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
She was the pillar of the family, always holding everyone together during tough times.
What does the metaphor "pillar of the family" imply?
A. She is physically tall and strong.
B. She is a boring person.
C. She is the source of strength and support.
D. She is a retired person.
English
Information Retrieval from Texts
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
Margie was disappointed. She had been hoping they would take the teacher away altogether. They had once taken Tommy's teacher away for nearly a month because the history sector had blanked out completely.
Why was Margie disappointed that the teacher was not taken away?
A. She loved the teacher and wanted him to stay.
B. She wanted to play with Tommy instead of studying.
C. She hated the schoolwork and wanted a break.
D. She wanted to learn history instead of maths.
English
Information Retrieval from Texts
thumb_up 0
people 0 answers
check_circle 0%
-
by GIANSH GUPTA
· Class 9
In a sentence with both a direct and indirect object, which structure is standard?
a) Subject + Verb + Direct Object + Indirect Object (without "to")
b) Subject + Verb + Indirect Object + Direct Object
c) Indirect Object + Subject + Verb + Direct Object
d) Verb + Subject + Indirect Object + Direct Object
English
Word Order
thumb_up 0
people 0 answers
check_circle 0%
