Preparation

GATE CSE Books – More Options

May 23, 2021 by Arjun Suresh 1 Comment

Best Books for GATE CSE with Relevant Chapters to Read Heads Up! These books are recommended for a good understanding of Computer Science subjects which is very essential for GATE. For each subject you may choose ANY ONE of the books and not all Please see Video Lectures for video lectures Algorithms & Data Structures […]

1,024 total views, 10 views today

ISI PCB Previous Year Papers with Solution

May 18, 2021 by soujanya 2 Comments

Indian Statistical Institute(ISI) offers M Tech in Computer Science with the Admission Test Codes MMA/PCA and PCB. Each of these two tests MMA/PCA and PCB will have individual qualifying marks. Group A and Group B marks vary from Year to Year. Scope: This two-year programme is designed to provide a balance of theoretical and professional training […]

384 total views, 9 views today

ISI JRF Previous Year Papers with Solution

May 17, 2021 by soujanya 2 Comments

Indian Statistical Institute(ISI) offers Junior Research Fellowships (JRF) in Computer Science, Statistics, Mathematics, Quantitative Economics, and Quality, Reliability & Operations Research (QROR). The Exam Center Codes for JRF are JCSK, JCSB, JCSC which will conduct at […]

665 total views, 17 views today

ISI DCG Previous Year Papers with Solution

May 17, 2021 by soujanya Leave a Comment

Indian Statistical Institute(ISI) conduct the admission test for Postgraduate Diploma in Computer Applications(PGDCA) with the test code DCG. The Programme Code for PG Diploma in Computer Science is DCAG. ISI conducts one MCQ test for […]

617 total views, 10 views today

ISI MMA\PCA Previous Year Papers with Solution

May 17, 2021 by soujanya 3 Comments

Indian Statistical Institute(ISI) offers M Tech in Computer Science with the Admission Test CodesISI MMA\PCA and PCB. The Programme code for M Tech in Computer Science is MCSK. ISI conducts two Admission Tests on the same day for M.Tech(CS), one is MCQ, the test code for this is MMA, and another one is Descriptive […]

1,071 total views, 14 views today

GATE Overflow
Aptitude Overflow

Answered: A router has 3 interfaces and connects 3 subnets in a 200.200.200 network with given subnet mask of interfaces .

For part A, both option A and B are correct for part B, max subnets can be 8 ( as per option A) and 32 ( as per option B), since 8 is given so option C is correct [...]

Answered: IP addressing

option B is correct [...]

Answered: Subnet addresses

For 1st part option D is correct for 2nd part option C is correct [...]

Answered: GATE CSE 2005 | Question: 29, UGCNET-June2015-III: 9

Option C is the only FALSE statement. We can always have a lossless decomposition into $\textsf{BCNF}$ but not always we can have a lossless and dependency preserving decomposition. But this is always possible in the case of $\textsf{3NF}.$ Option A is true as the requirement of $\textsf{BCNF}$ required a relation schema to be in $\textsf{3NF}.$ Actually $\textsf{3NF}$ allows transitive dependency for prime attributes whereas $\textsf{BCNF}$ does not. Option D is true as shown below. Assume the two attributes to be $A$ and $B.$ Now, we can have three cases: Either $A$ or $B$ is the candidate key but not both. i.e., $A… [...]

Answered: ISI2018-PCB-CS10

SELECT ind, sum(val) FROM (SELECT * FROM U UNION ALL SELECT * FROM V ) GROUP BY ind [...]

Answered: GATE CSE 2021 Set 1 | Question: 27

Correct Answer: C Stub(isn’t concise & coherent) Whenever a Database Problem intimidating like the above one(maybe it’s just me) appears, it’s often worth to Dissect the statements for Individual components and build up your arguments from there rather than attempting it head-on by some random example/argument only to get swayed by your hidden biases and choose the wrong answer. Couple of Basic Ideas: $\rho_{r1(x,y...)}$ is the rename operation which changes the name of the $empAge’s$ attributes to $empNo1,age1$, it’s done here to resolve the conflicts that will arise while referring the relations’(the table) attributes(column) when using relations that might… [...]

Answered: CAT2019-1: 92

Answered: CAT2019-1: 92

Correct Answer: D. [...]

Answered: CAT2019-1: 95

Answered: CAT2019-1: 95

Correct Answer: C. [...]

Answered: CAT2014-27

Important steps to solve this question: The perpendicular from center (O) to C will divide the chord AB into equal halves. Hence BC = AC = 3 metres. Now, in △ OCB, ∠ OCB = 90°. Hence the sides of this triangle will obey the Pythagorean rule. Hence, OB² = OC² + BC² If BC is 3 metres, the only possible Pythagorean triplet would be 3, 4 and 5. Hence OB = 5 metres. [...]

Answered: CAT2019-1: 71

Answered: CAT2019-1: 71

Given that, corners are cut from an equilateral triangle to produce a regular convex hexagon. The smaller triangles cut are equilateral triangles (If we cut off corners to create a regular hexagon, then each angle of the hexagon is $120^{\circ}$, and so each angle of every removed triangle is $60^{\circ}$ making these triangles equilateral) Let the original triangle side be $3a.$ The area of regular convex hexagon $H = \frac{3\sqrt{3}}{2}s^{2},$ the area of equilateral triangle $ T= \frac{\sqrt{3}}{4}s^{2},$ where $s$ is the side length. Now, $H_{1} = \frac{3\sqrt{3}}{2}a^{2},T_{1} = \frac{\sqrt{3}}{4}(3a)^{2} = \frac{9\sqrt{3}}{4}a^{2}$ The required ratio $ = \dfrac{H_{1}}{T_{1}} = \dfrac{\frac{3\sqrt{3}}{2}a^{2}}{\frac{9\sqrt{3}}{4}a^{2}} = \frac{2}{3}.$ $\therefore$ The ratio of the area of… [...]

Answered: CAT2019-1: 89

Answered: CAT2019-1: 89

Correct Answer: 6144. [...]

Answered: CAT2019-1: 100

Answered: CAT2019-1: 100

Correct Answer: B. [...]

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