Student Questions

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.

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

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

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.

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

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

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

Which character encoding standard is used to represent characters from almost all languages in the world? A. ASCII B. Unicode C. BCD D. EBCDIC

Which of the following number systems is used directly by computer hardware? A. Decimal B. Hexadecimal C. Binary D. Octal

Which is the smallest unit of computer memory? A. Byte B. Bit C. Megabyte D. Kilobyte

Find the value of (64)^1/6 A. 8 B. 4 C. 2 D. 32

Which of the following is an irrational number? a) √23 b) √225 c) 0.3796 d) 7.478478...

"The school bus __________ in the middle of the road, so we had to __________ and wait for another one." (A) broke down, get off (B) broke up, get on (C) broke out, get in (D) broke in, get away

Ria: "I can't find my science notebook anywhere!" Mother: "Don't worry, I'm sure it will __________ soon. Did you check under the bed?" (A) turn up (B) turn off (C) turn down (D) turn on

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.

"Everyone says that Rahul __________ his father because they both have the same smile." (A) takes off (B) takes up (C) takes after (D) takes in

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.

"It is important to __________ your grandparents when they are not feeling well." (A) look for (B) look after (C) look up (D) look into

"The manager had to __________ the cricket match because of the heavy rain." (A) call out (B) call off (C) call on (D) call in

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