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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
زیادہ تر سسٹمز میں کی کا کیا کام ہے؟
- System Settings
- Close a Window
- Repeat Last Action
- Refresh Page
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The F4 key is commonly used to repeat the last action in programs like Microsoft Word and Excel.
For example, if you format text or perform a specific action, pressing F4 will repeat it.
Last updated 15-feb-2026
بینڈوتھ عام طور پر _____ میں ماپا جاتا ہے؟
- Cycles per second
- Bits per second
- Bytes per second
- None of these
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Explanation
Bandwidth refers to the amount of data transmitted per second.
It is measured in bits per second (bps).
It indicates the speed or capacity of a network connection.
Last updated 15-feb-2026
- 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
ڈیٹا کمیونیکیشن کو مؤثر طریقے سے انجام دینے کے لیے درکار اصولوں کا مجموعہ کیا ہے؟
- Protocol
- Standard
- Topology
- Networking
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Explanation
A set of rules that govern data communication is called a protocol.
Protocols are agreements between devices
That allows them to communicate with each other, regardless of their internal differences
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
-
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
-
Data Link
-
Network
-
Transport
-
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
