basic computer science for all jobs

1 Most Repeated Repeated 1x

1 byte = ?

1. A 8 bits
2. B 80 bits
3. C 18 bits
4. D 16 bits

2 Most Repeated

"SaaS" stands for:

1. A System as a Service
2. B Software as a Service
3. C Software as a System
4. D Storage as a Service

3 Most Repeated

Which SQL command is used to remove all records from a table without deleting the table structure?

1. A TRUNCATE
2. B DELETE
3. C DROP
4. D REMOVE

4 Most Repeated

A "Primary Key" in a database table must be:

1. A Numeric only
2. B Nullable
3. C Unique and Not Null
4. D None

5 Most Repeated

What is the port number for HTTPS?

1. A 21
2. B 86
3. C 127
4. D 443

6 Most Repeated

HTTP operates at which layer of the OSI model?

1. A Session Layer
2. B Presentation Layer
3. C Application Layer
4. D None

7 Most Repeated

Which layer of the OSI model is responsible for routing data packets?

1. A Physical Layer
2. B Network Layer
3. C Data Link Layer
4. D None

8 Most Repeated

Which technology underpins most cryptocurrencies?

1. A Cloud storage
2. B Quantum chips
3. C Mainframe servers
4. D Blockchain

9 Most Repeated

Cryptocurrency is based on:

1. A Paper records
2. B Blockchain technology
3. C Banking ledgers
4. D Stock exchanges

10 Most Repeated

Acid turns blue litmus paper into:

1. A Red
2. B Green
3. C Yellow
4. D White

11 Most Repeated

Father of Computer:

1. A Charles Babbage
2. B Bill Gates
3. C Steve Jobs
4. D Alan Turing

12 Most Repeated

Operating system is:

1. A Application software
2. B System software
3. C Database
4. D Hardware

13 Most Repeated

Full form of URL:

1. A Universal Resource Link
2. B Uniform Record Locator
3. C Universal Reference Link
4. D Uniform Resource Locator

14 Most Repeated

Binary equivalent of decimal 10 is:

1. A 1001
2. B 1010
3. C 1011
4. D 1111

15 Most Repeated

Which protocol is used to transfer web pages?

1. A FTP
2. B HTTP
3. C SMTP
4. D TCP