Convert the denary number 45 to 8-bit binary.

Y10 - Summer PPE

Quiz
•
Computers
•
9th Grade
•
Medium
Paul Meehan
Used 1+ times
FREE Resource
35 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
00101101
00101011
00101110
00101010
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Convert the binary number 0110 1010 to hexadecimal.
6A
6B
7A
7B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the process of converting a binary number to two’s complement.
Flip all the bits and add one
Copy all the 1s and add zero
Flip all the bits and subtract one
Copy all the 0s and subtract one
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a file is compressed and some data is lost in the process, what type of compression is being used?
Lossy
Lossless
Reversible
Non-reversible
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Data can be encoded using ASCII. Describe ASCII.
A standard for representing text/characters, allowing data to be interchangeable between computers.
A method for compressing data to save space.
A protocol for secure data transmission over the internet.
A type of hardware used for data storage.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two images are displayed on the same screen. One image is 1024 × 768 pixels. The second image is 2560 × 1440 pixels. The second image has a higher resolution. State one reason why the second image will be displayed in more detail.
A. The number of pixels per square inch is higher
B. The number of colors is higher
C. The screen size is larger
D. The image format is different
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perform a logical binary shift left of two positions on the 8-bit binary pattern 1101 0011.
0100 1100
1010 0110
0011 0100
1100 1100
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