CAT Practice Question and Answer

Q: निम्नलिखित में से कौन कंट्रोल यूनिट का कार्य नहीं है? 4284 0

  • 1
    निर्देशों की व्याख्या करें
    Correct
    Wrong
  • 2
    निर्देश पढ़ें
    Correct
    Wrong
  • 3
    निर्देश निष्पादित करें
    Correct
    Wrong
  • 4
    प्रत्यक्ष संचालन
    Correct
    Wrong
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Answer : 2. "निर्देश पढ़ें"
Explanation :

Answer: B) निर्देश पढ़ें स्पष्टीकरण: नियंत्रण इकाई कार्य कर सकती है निर्देशों की व्याख्या करें, निर्देश निष्पादित करें और प्रत्यक्ष संचालन करें। लेकिन निर्देश पढ़ना कंट्रोल यूनिट का कार्य नहीं है।

Q: वर्चुअल मेमोरी प्रदान करने की एक विधि को _____ कहा जाता है। 4280 1

  • 1
    विखंडन
    Correct
    Wrong
  • 2
    विभाजन
    Correct
    Wrong
  • 3
    एकीकरण
    Correct
    Wrong
  • 4
    पेजिंग
    Correct
    Wrong
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Answer : 2. "विभाजन"
Explanation :

Answer: B) Segmentation Explanation:

Q: Which can not be formed using the letters of the given word ?  CONCEPTUALIZATION 4277 0

  • 1
    Actual
    Correct
    Wrong
  • 2
    Petrol
    Correct
    Wrong
  • 3
    Total
    Correct
    Wrong
  • 4
    Petal
    Correct
    Wrong
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Answer : 2. "Petrol"
Explanation :

Answer: B) Petrol Explanation:

Q: Find the one which does not belong to that group ? 4256 0

  • 1
    KMNL
    Correct
    Wrong
  • 2
    JLMK
    Correct
    Wrong
  • 3
    PRSQ
    Correct
    Wrong
  • 4
    VWYZ
    Correct
    Wrong
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Answer : 4. "VWYZ"
Explanation :

Answer: D) VWYZ Explanation: K+2 M+1 N-2 L,  P+2 R+1 S-2 Q,   V+1 W+2 Y+1 Z,   J+2 L+1 M-2 K  and  W+2 Y+1 Z-2 X. Except VWYZ, all the other groups follow similar pattern.

Q: The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is ? 4252 0

  • 1
    8 kmph
    Correct
    Wrong
  • 2
    6 kmph
    Correct
    Wrong
  • 3
    7.5 kmph
    Correct
    Wrong
  • 4
    5.5 kmph
    Correct
    Wrong
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Answer : 2. "6 kmph"
Explanation :

Answer: B) 6 kmph Explanation: Speed of the stream = 1Motor boat speed in still water be = x kmphDown Stream = x + 1 kmphUp Stream = x - 1 kmph[35/(x + 1)] + [35/(x - 1)] = 12x = 6 kmph

Q: Which action is the best example of a direct observation? 4247 0

  • 1
    listening to a cricket chirp at night and counting the number of chirps per minute
    Correct
    Wrong
  • 2
    determining the seal population of an island by counting seals in 10 square meters of the island
    Correct
    Wrong
  • 3
    identifying which bird was present by the tracks that it leaves in the sand at a beach
    Correct
    Wrong
  • 4
    reading numbers on a heat sensor to conclude that there is a deer in the night woods
    Correct
    Wrong
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Answer : 1. "listening to a cricket chirp at night and counting the number of chirps per minute"
Explanation :

Answer: A) listening to a cricket chirp at night and counting the number of chirps per minute Explanation:

Q: A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are picked at random, what is the probability that they are either blue or yellow ? 4237 0

  • 1
    3/17
    Correct
    Wrong
  • 2
    4/21
    Correct
    Wrong
  • 3
    2/21
    Correct
    Wrong
  • 4
    5/17
    Correct
    Wrong
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Answer : 3. "2/21"
Explanation :

Answer: C) 2/21 Explanation: Given that there are three blue marbles, four red marbles, six green marbles and two yellow marbles.   Probability that both marbles are blue = ³C₂/¹⁵C₂ = (3 x 2)/(15 x 14) = 1/35 Probability that both are yellow = ²C₂/¹⁵C₂ = (2 x 1)/(15 x 14) = 1/105 Probability that one blue and other is yellow = (³C₁ x ²C₁)/¹⁵C₂ = (2 x 3 x 2)/(15 x 14) = 2/35   Required probability = 1/35 + 1/105 + 2/35 = 3/35 + 1/105 = 1/35(3 + 1/3) = 10/(3 x 35) = 2/21

Q: मेन मेमोरी दो प्रकार की होती है 4218 2

  • 1
    रेंडम और सीक्वेंशियल
    Correct
    Wrong
  • 2
    ROM और RAM
    Correct
    Wrong
  • 3
    प्राइमरी और सेकेंडरी
    Correct
    Wrong
  • 4
    उपरोक्त सभी
    Correct
    Wrong
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Answer : 2. "ROM और RAM"
Explanation :

Answer: B) ROM और RAM व्याख्या: मुख्य मेमोरी को कंप्यूटर में सेंट्रल स्टोरेज के रूप में परिभाषित किया जाता है। (संज्ञा) मुख्य मेमोरी का एक उदाहरण है जहां प्रोग्राम और डेटा को तब रखा जाता है जब प्रोसेसर सक्रिय रूप से उनका उपयोग कर रहा हो। कंप्यूटर का मुख्य भंडारण क्षेत्र, जिसमें केंद्रीय प्रोसेसर की तत्काल या सीधी पहुंच होती है, दो प्रकार का होता है। वे हैं :: RAM - रैंडम एक्सेस मेमोरी ROM - रीड ओनली मेमोरी।

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