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G7-Unit 1 Test-Data

Total questions: 18

Worksheet time: 1hrs 13mins

Name
Class
Date
1.

If the alphabet is shifted by 4, what letter would "H" become?

如果将字母表移动 4 位,“H”会变成什么字母?

(a)  

2.

In a Caesar Cipher with a shift of 2, the word "DOG" would be encoded as:

在移位 2 的凯撒密码中,单词“DOG”将被编码为:

(a)  

3.

Decode the following message using a Caesar Cipher with a shift of 3 (Hint: Shift the letters backwards by 3 places):

WKHUH LV D VHFUHW PHVVDJH

使用移位 3 的凯撒密码解码以下消息(提示:将字母向后移动 3 位):

WKHUH LV D VHFUHW PHVVDJH

(a)  

4.

Decrypt with a shift of +5: 用 +5 移位解密:

ltytufwnx

(a)  

5.

What is Morse code made up of?

摩尔斯电码是由什么组成的?

a)

Dots and dashes

b)

Letters and numbers

c)

Symbols and punctuation

d)

Words and sentences

6.

Morse code is the second system that allowed communication over great distances. 摩尔斯电码是第二个允许远距离通信的系统。

a)

TRUE

b)

FALSE

7.

Who was the first person to successfully use Morse code for long-distance communication?

谁是第一个成功使用摩尔斯电码进行远距离通信的人?

a)

Samuel Morse

b)

Thomas Edison

c)

Alexander Graham Bell

d)

Nikola Tesla

8.

What is the Morse code for the letter "E"? 字母“E”的摩尔斯密码是什么?

a)

.-

b)

..

c)

.

d)

-.

9.

Encode the word "QUIZ" into Morse code.

将单词“QUIZ”编码为摩尔斯电码。

a)

--.- ..- .. --..

b)

--.- .. ..- --..

c)

--.- ..- ..- --..

d)

--.- ..- .. --.

10.

Convert 128 to binary

将 128 转换为二进制

a)
10000000
b)
01111110
c)
10000001
d)
11001100
11.

Which of these are the correct place values for binary? 以下哪一个是二进制的正确位值?

a)

128,64,32,16,8,4,2,1

b)

128, 68,34,12,6,4,2,1

c)

1,0

d)

0,1

12.

8 bytes = 1 bit 8字节=1比特

a)
TRUE
b)
FALSE
13.

Convert 65 to binary 将 65 转换为二进制

a)
01100001
b)
00100001
c)
01000001
d)
00100101
14.

Convert 00010001 to decimal 将 00010001 转换为十进制

a)
17
b)
27
c)
37
d)
47
15.

What is the answer to 010 + 010? 010 + 010 的答案是什么?

a)
110
b)
010
c)
100
d)
011
16.
What is the answer to 1010 + 0101?
a)
1011
b)
1001
c)
1111
d)
0111
17.

Add binary numbers shown? 把图示的二进制相加等于多少

a)
01111011
b)
01101111
c)
01111101
d)
01101101
18.

What was one new thing you learned about data this unit, and why do you think it’s important?

您在本单元学到了什么有关数据的新知识?您认为它为什么重要?

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