# Prediksi Soal Un Teknik Digital Dasar 1

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| By Yusrizal01
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Yusrizal01
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Quizzes Created: 1 | Total Attempts: 564
Questions: 10 | Attempts: 564  Settings  Berikut ini Prediksi soal Ujian Nasional berdasarkan SKL Soal Teori Kompetensi Kejuruan Teknik Audio Video Standart Kompetensi : Digital Dasar Kompetensi Dasar     : Sistem Bilangan

• 1.

### Bilangan biner disebut juga dengan bilangan ….

• A.

Binary nomer

• B.

Bilangan number

• C.

Trial and error

• D.

Denary number

• E.

Binary number

E. Binary number
Explanation
The correct answer is "binary number". Bilangan biner refers to the binary number system, which is a number system that uses only two digits, 0 and 1. In the binary system, each digit represents a power of 2, and the value of a binary number is calculated by adding up the values of its digits. This system is commonly used in computer science and digital electronics.

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• 2.

### Nilai (11)10  = (……)2

• A.

001011

• B.

11011

• C.

1010

• D.

01011

• E.

01010

A. 001011
Explanation
The given question asks for the binary representation of the decimal number (11)10. To convert a decimal number to binary, we divide the decimal number by 2 and record the remainder until the quotient becomes 0. In this case, when we divide 11 by 2, the remainder is 1 and the quotient is 5. When we divide 5 by 2, the remainder is 1 and the quotient is 2. Finally, when we divide 2 by 2, the remainder is 0 and the quotient is 1. Therefore, the binary representation of (11)10 is 1011.

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• 3.

### Bilangan oktal yang benar berikut ini adalah …..

• A.

8875

• B.

7581

• C.

3794

• D.

2781

• E.

2561

E. 2561
Explanation
The correct answer is 2561 because it is the only number in the given options that can be represented in octal form. In octal, the digits range from 0 to 7, so any number that contains digits greater than 7 cannot be a valid octal number.

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• 4.

### Lihat tabel berikut ini .. Isian yang benar untuk  (1), (2), dan (3) berturut – turut adalah …

• A.

9, 7, 1001

• B.

11, 12, 1001

• C.

9, 12, 1010 01010

• D.

9, 12, 1100

• E.

11, 9, 1010

E. 11, 9, 1010
Explanation
The correct answer is 11, 9, 1010. This can be determined by analyzing the given options and finding the pattern that matches the given table. In the table, the first column starts with 9 and increases by 2 for each subsequent row. The second column starts with 7 and alternates between increasing by 1 and decreasing by 3. The third column starts with 1001 and alternates between adding 9 and subtracting 1. Only the option 11, 9, 1010 follows this pattern correctly.

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• 5.

### Biner pecahan 0.111 sebanding dengan …

• A.

(0.125)10

• B.

(0.875)10

• C.

(0.25)10

• D.

(0.5)10

• E.

(0.625)10

B. (0.875)10
Explanation
The binary fraction 0.111 is equivalent to the decimal fraction (0.875)10.

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• 6.

### Lihat tabel berikut ini : Isian yang benar untuk bilangan desimal dan biner berturut – turut adalah ....

• A.

(14)10 = (001111)2

• B.

(15)10 = (001111)2

• C.

(16)10 = (001100)2

• D.

(17)10 = (010000)2

• E.

(32)10 = (101111)2

B. (15)10 = (001111)2
Explanation
The correct answer is (15)10 = (001111)2 because the decimal number 15 is equivalent to the binary number 001111.

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• 7.

### Konversi bilangan pecahan (25.25)10 = (……)2  ialah …

• A.

11001.001

• B.

11001.01

• C.

11001.1

• D.

1101.10

• E.

1101.11 d.

B. 11001.01
Explanation
The correct answer is 11001.01. This is because when converting a decimal number to binary, we can follow the process of multiplying the decimal part by 2 and taking the integer part of the result, repeating this process until the decimal part becomes 0. In this case, when multiplying 0.25 by 2, we get 0.5, so the integer part is 0. Then, when multiplying 0.5 by 2, we get 1, so the integer part is 1. This process continues until the decimal part becomes 0. Therefore, the binary representation of 25.25 is 11001.01.

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• 8.

### Kepanjangan dari LSD adalah ….

• A.

Least Serial Desimal

• B.

Least Significant Denary

• C.

Lost Significant Digit

• D.

Least Significant Digit

• E.

Level Significant Digit

D. Least Significant Digit
Explanation
The correct answer is "Least Significant Digit" because LSD is an acronym commonly used in computer science and mathematics to refer to the digit in a number that has the least value and contributes the least to the overall value of the number. In other words, it is the rightmost digit in a number.

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• 9.

### Nilai  (101.01)2 sebanding dengan ….

• A.

(5.05)10

• B.

(5.125)10

• C.

(5.25)10

• D.

(5.5)10

• E.

(5.625)10

C. (5.25)10
Explanation
The given question asks for a value that is proportional to (101.01)2. To find the proportional value, we need to calculate the square root of (101.01)2. The square root of (101.01)2 is 101.01. Among the given options, the value (5.25)10 is the closest to 101.01, so it is the correct answer.

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• 10.

### Perbedaan antara pengolahan konversi antara bilangan oktal kebilangan biner dengan konversi antara bilangan hexadesimal kebilangan biner adalah …..

• A.

Bilangan oktal harus dipisah – pisah lalu diubah ke bilangan biner

• B.

Bilangan hexadesimal dipisahkan masing-masing digitnya lalu diubah ke bilangan biner dengan jumlah 3 bit

• C.

Bilangan hexadesimal dipisahkan masing-masing digitnya lalu diubah ke bilangan biner dengan jumlah 4 bit

• D.

Bilangan oktal dipisahkan masing-masing digitnya lalu diubah ke bilangan biner dengan jumlah 4 bit

• E.

Tidak ada perbedaan antara konversi bilangan oktal ke biner maupun bilangan hexadesimal ke bilangan biner. Back to top