PPSC PAST PAPERS COMPUTER MCQS 2026
پیپر میں جانے سے
پہلے یہ سوالات و سلیبس ایک بار ضرور پڑھ کر جائیں
PPSC 25
years Past Papers Click here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- Star
- Mesh
- Bus
- None of above
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Explanation
In a network with 25 computers, a full mesh topology requires the most extensive cabling.
Mesh Topology: Every node is connected to every other node, creating 300 unique connections for 25 computers.
Last updated 15-feb-2026
- Share it
- Mobile broadband connections
- Bluetooth
- VPN
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Explanation
The internet, large corporate networks, and banking networks are common examples of WANs
A WAN can cover country, continent or even a whole world.
Other examples of WAN are mobile broadband connections such as 3G, 4G etc.
Last updated 15-feb-2026
ڈیٹا اسٹوریج ٹیکنالوجیز میں آر اے آئی ڈی کا کیا مطلب ہے؟
- Reliable Array of Independent Disks
- Remote Access Information Database
- Redundant Array of Inexpensive Disks
- None of these
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Explanation
RAID stands for Redundant Array of Inexpensive Disks.It is a data storage technology Combines multiple disks to improve performance, reliability, or both.It uses redundancy to protect data against hardware failures.Last updated 15-feb-2026
ایکسیل میں میکروز بنانے کا دوسرا قدم کیا ہے؟
- Write the macro code
- Record the macro
- Test the macro
- Save the macro
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Explanation
Creating a macro in Excel typically involves these steps:
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Enable Developer Tab – Access macro tools
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Record the Macro – Perform the actions you want to automate while Excel records them
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Test the Macro – Run it to ensure it works correctly
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Save the Macro – Store it in the workbook or personal macro workbook
Last updated 15-feb-2026
- Transport Layer Protocol
- Network Layer Protocol
- Data Link Layer Protocol
- Application Layer Protocol
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Explanation
ICMP stands for Internet Control Message Protocol
Operates at the network layer of the OSI model.
It is used for error reporting and network diagnostics, such as:
ICMP does not transport user data
Last updated 15-feb-2026
- Physical
- Network
- Process
- Transport
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Explanation
There is no “Process” layer in the OSI model.
“Process layer” is sometimes mistakenly referred to, but it does not exist in OSI terminology.
The OSI model has 7 layers:
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Physical
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Data Link
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Network
-
Transport
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Session
-
Presentation
-
Application
Last updated 15-feb-2026
کریپٹوگرافی جس میں ایک پبلک کی اور ایک پرائیوٹ کی استعمال ہوتی ہے، کیا کہلاتی ہے؟
- Symmetric Key Cryptography
- Asymmetric Key Cryptography
- Hashing
- Steganography
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Explanation
In Asymmetric Key Cryptography, two keys are used:
Public Key – shared openly to encrypt data
Private Key – kept secret to decrypt data
This method ensures secure communication without sharing a secret key beforehand
Last updated 15-feb-2026
- Denial of Service
- Disk Operating System
- Data Over Security
- Direct Online Service
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Explanation
A Denial of Service attack is a cyberattack in which an attacker overloads a network, server, or system with traffic,
Making it unavailable to legitimate users.
Common types include:
- Flood attacks
- Ping of Death
- SYN Flood
Last updated 15-feb-2026
آئی سی ایم پی کس میں استعمال ہوتا ہے؟
- Web browsing
- Email transmission
- Network diagnostics and error reporting
- File transfer
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Explanation
It does not carry user data like HTTP or FTP; it is solely for control and diagnostic purposes.
Last updated 15-feb-2026
- Minimum Transfer Unit
- Maximum Transmission Unit
- Medium Transfer Utility
- Multiple Transmission Unit
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Explanation
Maximum Transmission Unit refers to the largest size of a data packet
That can be transmitted over a network medium.
If a packet is larger than the MTU, it must be fragmented into smaller packets.
Example: Ethernet typically has an MTU of 1500 bytes.
Last updated 15-feb-2026
