WorksheetsG4-Mid-term Quiz-Digitalization & Encoding Midterm Exam
Total questions: 20
Worksheet time: 2hrs 40mins
What is the core purpose of digitalization?
数字化的核心目的是什么？
To store data in physical books
将数据存储在实体书籍中
To convert analog signals into digital formats
将模拟信号转换为数字格式
To increase the size of data
增加数据大小
To delete unnecessary information
删除不必要的信息
Which device converts light into electrical signals in image encoding?
图像编码中，哪个设备将光转换为电信号？
Speaker
扬声器
Photoelectric sensor
光电传感器
Keyboard
键盘
Hard disk
硬盘
What is the final form of image data after encoding?
图像编码后的最终形式是什么？
Decimal numbers
十进制数字
Alphabet letters
字母
Binary code
二进制代码
Sound waves
声波
Which image format supports transparency?
哪种图像格式支持透明背景？
PNG
JPEG
BMP
GIF
Audio encoding converts sound waves into:
音频编码将声波转换为：
Text files
文本文件
Light pulses
光脉冲
Printed sheets
打印纸张
Digital signals
数字信号
How many basic characters can ASCII represent?
ASCII码可以表示多少种基本字符？
64
128
256
512
Why was Unicode developed?
Unicode开发的目的是什么？
To standardize characters across languages
统一多语言字符标准
To replace all image formats
取代所有图像格式
To reduce audio file size
减小音频文件大小
To encrypt data
加密数据
GB2312 is primarily used for encoding which language?
GB2312主要用于哪种语言的编码？
English
英语
French
法语
Simplified Chinese
简体中文
Japanese
日语
Which is a feature of analog signals?
以下哪项是模拟信号的特征？
Discrete values
离散的数值
Continuous waveforms
连续变化的波形
Only 0s and 1s
仅包含0和1
Cannot be captured by sensors
不能被传感器捕获
What is the main advantage of JPEG format?
JPEG格式的主要优点是什么？
Lossless compression
无损压缩
Supports animation
支持动画
High compression ratio
高压缩比
Transparent background
透明背景
Which encoding standard includes emoji characters?
哪种编码标准包含表情符号？
ASCII
GB2312
Unicode
BMP
The binary number "11" equals to _____ in decimal.
3
11
2
1
The binary number "101" equals to _____ in decimal.
3
11
5
10
Which file format is for audio?
以下哪种文件格式是音频文件？
.txt
.mp3
.jpg
.docx
In ASCII, what is the binary code for uppercase "A"?
ASCII码中，大写字母"A"的二进制编码值是多少？
1001 0011
0101 0101
0110 1111
0100 0001
In ASCII, what is the Decimal code for number"9"?
ASCII码中，数字“9”的十进制编码是？
48
65
57
32
Why compress image files?
为什么需要压缩图像文件？
To increase resolution
提高图像分辨率
To reduce storage and transmission time
减少存储空间和传输时间
To add more colors
增加颜色数量
To convert to analog signals
转换为模拟信号
GIF format is best for:
GIF格式适合存储什么类型的图像？
High-resolution photos
高分辨率照片
Simple animations
简单动画
Black-and-white text
黑白文本
3D models
模型
Which is NOT a step in digitalization?
以下哪项不是数字化过程的步骤？
Sampling
采样
Quantization
量化
Directly storing analog signals
模拟信号直接存储
Encoding
编码
GB2312 encoding covers:
GB2312编码适用于：
Only English
仅英文
All languages
所有国家语言
Simplified Chinese and some symbols
简体中文和部分符号
Only numbers
仅数字
