Fundamentals And Methodologies In Computing Research Practice Tests

Question 1

A researcher proposes a new algorithm to solve the Traveling Salesperson Problem by applying a heuristic approach previously used only in fluid dynamics. According to Cryer's areas of originality, which category does this primarily address?

Accepted Answer

The novel use of methods

Answer

Exploring the unknown

Answer

Developing entirely new theories

Answer

Exploring the unanticipated

Question 2

Given a set of raw sensor readings $S = \{s_1, s_2, ..., s_n\}$, if the mean value is calculated as $\mu = \frac{1}{n} \sum_{i=1}^{n} s_i$ and used to identify a specific hardware failure trend, which stage of the knowledge hierarchy does the identification of the trend represent?

Accepted Answer

Information

Question 3

In the circulatory model of research, the process is considered a fixed, linear sequence where each stage must be completed before the next begins.

Accepted Answer

False

Answer

True

Question 4

A researcher observes that a specific server cluster crashes whenever the CPU load $L > 0.95$ and memory usage $M > 0.90$. The researcher concludes that the system is likely hitting a resource contention threshold. Which type of reasoning is being applied?

Accepted Answer

Abductive

Answer

Deductive

Answer

Inductive

Answer

Inversion

Question 5

Which of the following scenarios represent the application of deductive reasoning in a scientific context?

Answer

Using the laws of thermodynamics to predict the efficiency limit of a heat engine

Answer

Observing 100 successful system runs and concluding the software is bug-free

Answer

Applying Maxwell's equations to calculate the electromagnetic field strength at a distance $r$

Answer

Guessing the cause of a system crash based on a single error log entry

Question 6

If a researcher wants to optimize a function $f(x)$ but struggles to find a direct solution, they decide to analyze the problem by asking 'What constraints would make $f(x)$ impossible to minimize?' instead of 'How do I minimize $f(x)$?'. What is this technique called?

Accepted Answer

Inversion

Question 7

A researcher is developing a new theory to explain a phenomenon. If the theory is based on the observation that for a system $f: \mathbb{N} 	o \mathbb{N}$, the output $f(n)$ consistently follows the pattern $f(n) = 2^n$, which reasoning process is used to generalize this pattern?

Accepted Answer

Inductive

Answer

Deductive

Answer

Abductive

Answer

Partition

Question 8

A researcher is analyzing a dataset where the observed variance $\sigma^2$ is significantly higher than the predicted theoretical variance $\sigma^2_{theory}$. If the researcher decides to work backward from this observation to identify the most likely missing variable in the model, which reasoning approach is being applied?

Accepted Answer

Abductive reasoning

Answer

Deductive reasoning

Answer

Inductive reasoning

Answer

Sequential reasoning

Question 9

Consider a research project following a sequential model with $n$ stages. If the time taken for each stage $i$ is defined by $T_i = \alpha i^2 + \beta$, calculate the total time $T_{total}$ for a project with $n=4$ stages, where $\alpha = 2$ and $\beta = 5$.

Accepted Answer

70

Question 10

A study aims to determine the relationship between variable $x$ and $y$ using the function $y = f(x) + \epsilon$. If the study is designed to establish that changes in $x$ directly cause changes in $y$ while controlling for confounding factors, how should this research be classified by nature?

Accepted Answer

Causal

Answer

Descriptive

Answer

Exploratory

Answer

Normative

Question 11

In an 'open system of thought' for research, the failure to define the limits of generalization leads to a condition where the status quo remains unchallenged and research stagnates.

Accepted Answer

True

Answer

False

Question 12

Which of the following techniques are appropriate for breaking down a complex research problem into manageable components?

Answer

Inversion

Answer

Partition

Answer

Linearization

Answer

Integration

Question 13

If a research model follows a circulatory cycle where the output of the final stage $S_n$ feeds back into the input of the first stage $S_1$ with a decay factor $\gamma = 0.5$, and the initial knowledge base is $K_0 = 100$, calculate the knowledge base after one full cycle $K_1$ given $K_1 = K_0 + \gamma(S_n)$. Assume $S_n = 50$.

Accepted Answer

125

Question 14

A researcher investigates the relationship between CPU cache size $S$ and execution time $T$, modeled by $T(S) = \frac{k}{S} + c$. Given that $T(16) = 10$ ms and $T(32) = 6$ ms, determine the nature of this research.

Accepted Answer

Causal

Answer

Descriptive

Answer

Exploratory

Answer

Normative

Question 15

If a study on algorithm efficiency fails to define the limits of its generalization, the research maintains its validity by remaining an 'open system of thought'.

Accepted Answer

False

Answer

True

Question 16

In a performance analysis of two sorting algorithms, Algorithm A has complexity $O(n \log n)$ and Algorithm B has $O(n^2)$. If you measure the execution time for $n=10^6$ to determine which is faster, which research method are you primarily employing?

Accepted Answer

Quantitative

Answer

Qualitative

Answer

Normative

Answer

Theoretical

Question 17

Which of the following are critical considerations when designing a questionnaire for a large-scale survey on software developer productivity?

Answer

Target audience demographics

Answer

Question order and flow

Answer

Anonymity and respondent privacy

Answer

Excluding all open-ended questions

Question 18

A researcher is conducting a case study on the adoption of a new programming language in a specific company. If the researcher wants to calculate the response rate for a survey sent to $N=200$ employees, where $R=145$ employees completed the survey, calculate the response rate as a percentage.

Accepted Answer

72.5%

Question 19

When comparing a structured interview to an unstructured interview, which scenario best justifies the use of an unstructured interview?

Accepted Answer

Exploring complex, poorly understood phenomena where the researcher needs to adapt questions based on participant responses.

Answer

Collecting standardized data from a large sample size of 1000 participants.

Answer

Ensuring high repeatability and statistical significance across multiple research sites.

Answer

Minimizing the time required for data analysis and coding.

Question 20

In the context of research classification, a study that develops a new framework for software security is classified as 'development/application' research.

Accepted Answer

True

Answer

False

Fundamentals And Methodologies In Computing Research Practice Tests

Practice Tests

Fundamentals and Methodologies in Computing Research

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