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RRB JE Computer Awareness Questions
Practise computer awareness (computer knowledge) for the RRB Junior Engineer Examination: 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Computer Awareness practice
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Q1.Which device connects different networks and routes data between them?
Show answer & explanation
Answer: B — Router
A router forwards packets between networks.
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Q2.The brain of the computer is the:
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Answer: D — CPU
The Central Processing Unit executes instructions.
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Q3.What is the extension of a Microsoft Excel workbook (2007+)?
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Answer: C — .xlsx
.xlsx is the default Excel workbook format.
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Q4.Which shortcut copies selected text in most applications?
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Answer: D — Ctrl + C
Ctrl + C copies; Ctrl + V pastes; Ctrl + X cuts; Ctrl + Z undoes.
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Q5.What does URL stand for?
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Answer: C — Uniform Resource Locator
A URL is the address of a resource on the web.
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Q6.Which number system uses only 0 and 1?
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Answer: A — Binary
Binary (base 2).
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Q7.Which protocol is used to send email?
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Answer: A — SMTP
SMTP (Simple Mail Transfer Protocol) sends email.
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Q8.A firewall is used to:
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Answer: D — Monitor and control network traffic for security
Firewalls filter incoming and outgoing traffic.
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Q9.RAM is a type of:
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Answer: B — Volatile memory
RAM loses its contents when power is off — it is volatile.
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Q10.Which of these is an operating system?
Show answer & explanation
Answer: A — Linux
Linux is an operating system kernel (with distributions such as Ubuntu).
How to approach computer awareness questions
Revise hardware vs software, memory types, number systems, common shortcuts, networking devices and internet protocols. Security terms (phishing, firewall, malware) are asked often.
About RRB JE
RRB Junior Engineer Examination — conducted by Railway Recruitment Boards (RRB). Recruits Junior Engineers, Depot Material Superintendents and Chemical & Metallurgical Assistants.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
RRB JE practice topics
| Topic | Section | Question source |
|---|---|---|
| Physics | Science | Calculated + question bank |
| Chemistry | Science | Calculated + question bank |
| Number System & Simplification | Quantitative aptitude | Calculated (new numbers every set) |
| Logical Reasoning | Reasoning | Calculated (new numbers every set) |
| Computer Awareness | Computer knowledge | Question bank |