कम्प्युटर र सूचना प्रविधि (प्राविधिक)
कम्प्युटर र सूचना प्रविधि (प्राविधिक)
Computer & IT (Technical) · ५,०७६ प्रश्न
५,०७६ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर र IT: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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In a batch processing operating system:
सही उत्तर: घ) Jobs with similar needs are grouped and run one after another without user interaction
Batch systems collect jobs into batches and execute them sequentially, with no interaction between the user and the job during execution.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An operating system that lets many users at different terminals use one computer at the same time by rapidly switching the CPU among them is a:
सही उत्तर: ग) Time-sharing operating system
A time-sharing OS gives each user a small slice of CPU time in turn, so every user appears to get simultaneous service.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Android mobile operating system is built on top of which kernel?
सही उत्तर: ख) Linux kernel
Android uses a modified Linux kernel, with its own runtime, libraries and application framework on top.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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UNIX was originally developed around 1969-1970 at:
सही उत्तर: क) AT&T Bell Laboratories
UNIX was created at AT&T Bell Labs by Ken Thompson and Dennis Ritchie, and was later rewritten in the C language.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What range of integers can be stored in an 8-bit signed two's complement number?
सही उत्तर: घ) -128 to 127
With n bits, two's complement covers -2^(n-1) to 2^(n-1) - 1, which for 8 bits is -128 to 127.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An array int a[3][4] is stored in column-major order starting at address 1000, with 4 bytes per element. What is the address of a[1][2]?
सही उत्तर: ग) 1028
In column-major order, a[i][j] is at base + (j x rows + i) x size = 1000 + (2 x 3 + 1) x 4 = 1028.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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How many binary strings of length 4 contain no two consecutive 1s?
सही उत्तर: ख) 8
The count follows the Fibonacci pattern 2, 3, 5, 8 for lengths 1 to 4, so there are 8 such strings.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the 0/1 knapsack problem with capacity 5 and items (weight, value) = (2, 3), (3, 4), (4, 5), (5, 6), what is the maximum total value?
सही उत्तर: क) 7
The best choice is the items of weight 2 and 3 (total weight 5), giving value 3 + 4 = 7; no other feasible set does better.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Activities with (start, finish) times (1,4), (3,5), (0,6), (5,7), (3,9), (5,9), (6,10), (8,11) are given. The greedy method that always picks the compatible activity finishing earliest selects how many activities?
सही उत्तर: घ) 3
It picks (1,4), then (5,7) as the next to finish after 4, then (8,11); nothing else fits, so 3 activities.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Huffman coding is applied to four symbols with frequencies a = 1, b = 1, c = 2 and d = 4. What is the total number of bits needed to encode all 8 symbols?
सही उत्तर: ग) 14
Merging gives code lengths d = 1, c = 2, a = 3, b = 3; total = 4 x 1 + 2 x 2 + 1 x 3 + 1 x 3 = 14 bits.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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