IBPS RRB (Computer Knowledge) 4 — Questions and Answers
Question 1: Which data structure follows the Last In, First Out (LIFO) principle?
- Queue
- Stack (Correct answer)
- Linked list
- Tree
Correct answer: Stack
A stack is a data structure where the last element added is the first one to be removed, following the LIFO principle.
Question 2: What is phishing in the context of cyber security?
- A technique to speed up internet browsing
- A fraudulent attempt to obtain sensitive information by disguising as a trustworthy entity (Correct answer)
- A method to compress large files
- A process to scan for viruses
Correct answer: A fraudulent attempt to obtain sensitive information by disguising as a trustworthy entity
Phishing is a social engineering attack where cybercriminals impersonate legitimate organizations via email or websites to steal credentials or financial data.
Question 3: In MS PowerPoint, which view displays all slides as small thumbnails for easy rearrangement?
- Normal view
- Slide Show view
- Slide Sorter view (Correct answer)
- Reading view
Correct answer: Slide Sorter view
Slide Sorter view displays miniature versions of all slides, making it easy to rearrange, delete, or duplicate slides.
Question 4: Which storage technology uses magnetic platters to store data?
- Solid State Drive (SSD)
- USB Flash Drive
- Hard Disk Drive (HDD) (Correct answer)
- Optical disc
Correct answer: Hard Disk Drive (HDD)
A Hard Disk Drive (HDD) stores data on spinning magnetic platters and uses read/write heads to access the data.
Question 5: What does the term 'cloud computing' primarily refer to?
- Computing done during cloudy weather conditions
- Delivering computing services over the internet on a pay-per-use basis (Correct answer)
- A technique to reduce computer overheating
- Software installed only on local machines
Correct answer: Delivering computing services over the internet on a pay-per-use basis
Cloud computing refers to the delivery of computing services — including storage, processing, and software — over the internet, enabling on-demand access.
Question 6: Which number system uses only the digits 0 and 1?
- Octal
- Decimal
- Hexadecimal
- Binary (Correct answer)
Correct answer: Binary
The binary number system uses base-2, with only two digits (0 and 1), and is the fundamental language of all digital computers.
Question 7: What is the role of a DBMS (Database Management System)?
- To design computer hardware
- To manage and organize data storage and retrieval (Correct answer)
- To provide internet connectivity
- To create graphic designs
Correct answer: To manage and organize data storage and retrieval
A DBMS is software that enables users to create, manage, and manipulate databases, ensuring efficient data storage, retrieval, and security.
IBPS RRB (Computer Knowledge) 4
Which data structure follows the Last In, First Out (LIFO) principle?