01
Choose one
1 point
What decimal value does the eight-bit binary pattern 00101101 represent?
Free Practice Quiz Question List
6 Data Representation Online Quiz Questions
Use this free practice quiz with 20 questions to review 6 Data Representation, test your knowledge, and prepare for your next test or exam.
20 questions
02
Choose one
1 point
What is the largest unsigned integer that can be represented with 12 bits?
- A
2047
- B
4095
- C
4096
- D
8191
03
Choose one
1 point
A system stores the most significant byte of a multi-byte value first. Which byte order is it using?
- A
Big-endian
- B
Little-endian
- C
Two's-complement
- D
UTF-8
04
Choose all
1 point
Which statements about UTF-8 are correct? Select all that apply.
- A
It is a variable-length encoding.
- B
Characters in the ASCII range use one byte.
- C
Every Unicode character uses exactly two bytes.
- D
A character outside the ASCII range may use two, three, or four bytes.
05
Choose all
1 point
Which statements correctly distinguish characters, code points, and encodings? Select all that apply.
- A
A character is an abstract symbol such as
A. - B
A code point is always the same thing as a byte.
- C
An encoding specifies how a code point becomes bytes.
- D
A code point is a numeric value and identity assigned to a character.
06
True or false
1 point
True or false: A stored bit pattern has no universal meaning without rules that provide context for interpreting it.
- A
True
- B
False
07
True or false
1 point
True or false: Binary floating-point representation can represent the decimal value 0.1 exactly in every calculation.
- A
True
- B
False
08
Written response
1 point
Using eight-bit two's-complement representation, what signed decimal integer is represented by 11111011?
09
Written response
1 point
What technical term describes unreadable symbols produced when bytes encoded as UTF-8 are incorrectly interpreted using another encoding?
10
Fill in the blank
1 point
Complete the statements: In UTF-8, a character in the ASCII range uses byte. A string is an ordered sequence of .
11
Fill in the blank
1 point
Complete the range: An eight-bit signed integer using the common two's-complement representation ranges from to .
12
Open ended
1 point
Explain why the same stored bit pattern can represent different kinds of data. In your answer, describe how representation, storage, transmission, and interpretation are related, and use 01000001 as an example.
13
Choose one
1 point
Which description best explains how floating-point representation supports a wide range of fractional values?
- A
Only a fixed binary point and no scale information
- B
A character code and an encoding name
- C
A sign, a significant portion, and a scale or exponent
- D
A Boolean state and a byte-order marker
14
Choose one
1 point
How many distinct bit patterns can be represented by one byte?
- A
8
- B
256
- C
512
- D
65,535
15
Choose one
1 point
What decimal value does the eight-bit binary number 00101101 represent?
- A
29
- B
37
- C
45
- D
53
16
Choose one
1 point
A system stores a multi-byte value with the most significant byte at the lowest memory address. Which byte-order convention is it using?
- A
The most significant byte comes first.
- B
The least significant byte comes first.
- C
Bytes are stored in alphabetical order.
- D
Each byte is stored with its bits reversed.
17
Choose one
1 point
Using eight-bit two’s-complement representation, which bit pattern represents the negative of 5?
- A
00000100
- B
11111010
- C
10000101
- D
11111011
18
True or false
1 point
True or false: The bit pattern 01000001 can have different meanings depending on the data type, encoding, or file-format rules used to interpret it.
- A
True
- B
False
19
Written response
1 point
What is the largest unsigned integer that can be represented with 16 bits?
20
Written response
1 point
What term describes the rules that convert character code points into bytes for storage or transmission?