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Class 9 (358 questions)
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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
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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
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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
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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
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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
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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
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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
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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
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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
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by GIANSH GUPTA
· Class 9
Which is the smallest unit of computer memory?
A. Byte
B. Bit
C. Megabyte
D. Kilobyte
Cyber
Data Representation
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by GIANSH GUPTA
· Class 9
Find the value of (64)^1/6
A. 8
B. 4
C. 2
D. 32
Maths
Number Systems
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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
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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
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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
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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
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by GIANSH GUPTA
· Class 9
Choose the correct arrangement for multiple adjectives:
a) A round old wooden lovely table.
b) A lovely old round wooden table.
c) A wooden old lovely round table.
d) An old lovely wooden round table.
English
Word Order
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by GIANSH GUPTA
· Class 9
Which sentence is a correctly structured negative interrogative?
a) Do you not like the new playground?
b) Not do you like the new playground?
c) Do not you like the new playground?
d) You do not like the new playground?
English
Word Order
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by GIANSH GUPTA
· Class 9
Choose the correct word order for this statement:
a) Often she plays tennis in the afternoon.
b) She often plays tennis in the afternoon.
c) She plays often tennis in the afternoon.
d) In the afternoon tennis she plays often.
English
Word Order
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by GIANSH GUPTA
· Class 9
A company’s main office, where the top executives work, is known as:
A. A branch
B. A warehouse
C. Headquarters
D. A cubicle
English
Words Related to Workplace
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by GIANSH GUPTA
· Class 9
"Collaboration" in the workplace refers to:
A. Working together towards a common goal
B. Competing with colleagues
C. Reporting to a manager
D. Taking a break
English
Words Related to Workplace
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