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#1
By Ahmed Akber
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Medium
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Fact Checked
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10 Jun 2026
Which type of encryption uses the same secret key for both the encryption and decryption of data?
💡 Explanation:Symmetric encryption is a cryptographic method where a single shared key is used by both the sender to encrypt and the recipient to decrypt information.
#2
By Kalsoom Tahir
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Easy
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Fact Checked
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23 Jan 2026
Which cloud service model offers fundamental computing, storage, and networking resources on-demand?
💡 Explanation:Infrastructure as a Service (IaaS) is the cloud model that provides the fundamental, virtualized computing resources—servers (compute), storage, and networks—over the internet on an on-demand, pay-as-you-go basis. It gives the user the highest level of control over their operating systems and applications, while the cloud provider manages the physical hardware.
#3
By Ahmed Akber
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Medium
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Fact Checked
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18 Jan 2026
Which cloud service model provides fully managed software accessible via a web browser?
💡 Explanation:Software as a Service (SaaS) is a cloud computing model that provides end-user applications over the internet, with the provider managing the entire infrastructure, operating system, and software maintenance.
#4
By Ahmed Akber
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Hard
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Fact Checked
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13 Jan 2026
According to Moore’s Law, what characteristic of an integrated circuit doubles approximately every two years?
💡 Explanation:Moore’s Law, an observation by Intel co-founder Gordon Moore, states that the number of transistors on a microchip (Integrated Circuit) roughly doubles every two years. This exponential growth in transistor count has been the driving force behind the corresponding increase in computing power and decrease in cost. The common misconception that performance doubles every 18 months is a *consequence* of this law, but the law itself is specifically about the doubling of the transistor count.
#5
By Rabia Anum
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Hard
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Fact Checked
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11 Jan 2026
Which phenomenon causes the collapse of a quantum state (qubit) due to interaction with the environment?
💡 Explanation:Quantum Decoherence is the process by which a quantum system, such as a qubit in superposition, loses its coherence (quantum nature) because of uncontrolled interaction with its surrounding environment (e.g., thermal vibrations, stray electromagnetic fields). This is the primary obstacle to developing stable, large-scale quantum computers. Entanglement is a useful quantum property.
#6
By Kalsoom Tahir
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Easy
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Fact Checked
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09 Jan 2026
What is the defining characteristic of cloud computing services?
💡 Explanation:Cloud computing is defined by the on-demand availability of computer system resources—especially data storage and computing power—delivered over the internet ('the cloud'). This allows users to access resources without direct active management of the underlying infrastructure.
#7
By Ahmed Akber
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Medium
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19 Nov 2025
What is the primary function of a transistor in modern electronic devices?
💡 Explanation:Transistors are fundamental components in nearly all modern electronics, used primarily to act as electronic switches or to amplify electronic signals.
#8
By Rabia Anum
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Easy
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18 Nov 2025
CPU processing speed is commonly measured in which unit?
💡 Explanation:Gigahertz (GHz) measures the clock speed of a CPU, indicating how many billions of cycles it can perform per second.
#9
By Ahmed Akber
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Medium
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16 Nov 2025
Which rechargeable battery type is standard in modern portable electronics?
💡 Explanation:Lithium-Ion (Li-ion) batteries are the industry standard for portable devices due to their high energy density and lack of memory effect.
#10
By Kalsoom Tahir
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Easy
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15 Nov 2025
Which wireless standard is used for short-range personal area networks?
💡 Explanation:Bluetooth technology is designed for short-range communication between devices like phones and headphones.
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