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#1
By TheQuizWire
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Medium
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Fact Checked
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12 Apr 2026
Which component of an operating system acts as the central interface between the computer’s hardware and its software applications?
💡 Explanation:The kernel is the foundational layer of an operating system that manages system resources and facilitates communication between hardware components and software processes.
#2
By Zain
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Easy
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Fact Checked
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07 Mar 2026
What is the primary function of virtual memory in a modern operating system?
💡 Explanation:Virtual memory maps logical addresses to physical addresses, allowing the system to use secondary storage as an extension of RAM to run large applications.
#3
By Zain
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Medium
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Fact Checked
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15 Feb 2026
What is the main advantage of a hash table (or dictionary) over an unsorted array for element lookup?
💡 Explanation:A well-implemented hash table, utilizing a good hash function, offers an average-case time complexity of O(1) for search, insertion, and deletion operations. This near-constant time performance is a significant advantage over an unsorted array, which requires O(n) time for a lookup in the average and worst cases (linear search). Option B is incorrect because the worst-case complexity for a hash table is O(n) due to collisions. Option A is incorrect as hash tables often require extra space for buckets or collision resolution. Option D is incorrect; arrays are better for sequential access.
#4
By Zain
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Easy
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Fact Checked
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06 Feb 2026
Which application layer protocol primarily relies on TCP for data integrity and guaranteed delivery?
💡 Explanation:TCP (Transmission Control Protocol) is a connection-oriented protocol that provides reliable, ordered, and error-checked delivery of a stream of bytes. HTTP (Hypertext Transfer Protocol), used for web browsing, relies on this reliability to ensure web pages, images, and files are transferred completely and correctly. DNS, DHCP, and VoIP primarily utilize the faster, connectionless UDP (User Datagram Protocol), where speed and low latency are prioritized over guaranteed delivery.
#5
By Zain
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Medium
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Fact Checked
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22 Jan 2026
Which CPU scheduling algorithm is best for an interactive time-sharing OS to ensure quick response time?
💡 Explanation:Round Robin (RR) is a preemptive scheduling algorithm specifically designed for time-sharing systems. It assigns a fixed time slice (quantum) to each process, ensuring that every process receives a fair share of the CPU at regular intervals. This preemption and fair distribution minimize the average response time for interactive users, preventing any single process from monopolizing the CPU.
#6
By Zain
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Medium
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Fact Checked
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19 Jan 2026
When downloading a large file, which protocol primarily ensures that data packets arrive in the correct sequence and are acknowledged?
💡 Explanation:Transmission Control Protocol (TCP) is a core transport layer protocol responsible for reliable, ordered, and error-checked delivery of data streams. It establishes a connection, segments data, retransmits lost packets, and ensures data arrives in the correct sequence (acknowledged). User Datagram Protocol (UDP) is also transport layer but is connectionless and unreliable, prioritizing speed over guaranteed delivery. IP handles addressing and routing, while HTTP is an application layer protocol that typically uses TCP.
#7
By The Quiz Wire
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Easy
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Fact Checked
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15 Jan 2026
Which function fundamentally distinguishes TCP from UDP in network communication?
💡 Explanation:Transmission Control Protocol (TCP) is a connection-oriented protocol that ensures the reliable, sequential, and guaranteed delivery of data packets through mechanisms like sequencing and acknowledgments. User Datagram Protocol (UDP) is a connectionless protocol that offers faster, lower-overhead transmission but provides no guarantees of delivery or packet order. Thus, guaranteed delivery and ordered packets is the key distinguishing function.
#8
By The Quiz Wire
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Easy
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Fact Checked
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13 Jan 2026
What is the smallest addressable unit of memory in most modern computer architectures?
💡 Explanation:A byte (typically 8 bits) is the smallest addressable unit of memory in virtually all modern computer systems. While a bit is the fundamental unit of data (0 or 1), it cannot be individually accessed or addressed by a memory pointer.
#9
By The Quiz Wire
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Hard
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Fact Checked
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07 Jan 2026
What is the primary implication if P=NP is proven true in complexity theory?
💡 Explanation:P (Polynomial time) is the class of problems that can be *solved* quickly (in polynomial time). NP (Non-deterministic Polynomial time) is the class of problems for which a proposed solution can be *verified* quickly. If P=NP, it implies that every problem whose solution can be quickly verified (NP) also has an efficient, deterministic algorithm to find that solution quickly (P). This would revolutionize fields like cryptography and optimization.
#10
By The Quiz Wire
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Medium
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Fact Checked
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02 Jan 2026
What is the primary function of the kernel in a computer’s Operating System?
💡 Explanation:The kernel is the core component of an Operating System, primarily responsible for managing system resources such as the CPU, memory, and input/output (I/O) devices, and for mediating communication between hardware and software components.
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