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Computer Character Encoding

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Questions and Answers

What is the primary purpose of character encoding schemes such as ASCII and EBCDIC?

To represent data in a binary format
To encrypt data for secure transmission
To compress data for faster transmission
To enable communication between different computer systems (correct)

In the EBCDIC code, what is the numerical representation of the letter 'B'?

194 (correct)
66
67
65

What is the primary advantage of Unicode over ASCII and EBCDIC?

It can represent many more characters (correct)
It is faster to transmit
It is more secure
It is more widely used

When a computer using ASCII communicates with a computer using EBCDIC, what happens at the presentation layer?

The message is translated to EBCDIC (A) Signup and view all the answers

How many bits are typically used to represent a character in ASCII?

8 bits (A) Signup and view all the answers

What happens when a computer using Unicode communicates with a computer using the same character code?

No translation is necessary at the presentation layer (D) Signup and view all the answers

What symbol is not included in the American version of ASCII?

British Pound sign (£) (A) Signup and view all the answers

What is the limitation of representing Japanese characters using ASCII?

It requires replacing all Latin characters in the ASCII table. (C) Signup and view all the answers

What is the basic principle of representing text in computing?

Assigning a number to each character. (D) Signup and view all the answers

What is the purpose of Section 4.3 in the text?

To consider the representation of non-textual data. (A) Signup and view all the answers

What is the limitation of the British version of ASCII?

It does not include the Euro symbol (€). (D) Signup and view all the answers

What is the purpose of Chapter 4 in the text?

To consider the representation of text and non-textual data. (C) Signup and view all the answers

What is the representation of ASCII characters in the given encoding scheme?

8-bit (A) Signup and view all the answers

What is the maximum number of octets that a single character may consist of in the given encoding scheme?

6 (B) Signup and view all the answers

What is the purpose of the bits 10 in the trailing octets?

To mark trailing octets (B) Signup and view all the answers

How many characters can be represented as single octets in the given encoding scheme?

128 (C) Signup and view all the answers

What is the significance of the first bit being 0 in an octet?

It indicates that the character is a single-byte UTF character (A) Signup and view all the answers

What is the pattern used to indicate how many octets will follow in the given encoding scheme?

0, 10, 110, 1110 (C) Signup and view all the answers