Right Answer: Laravel is a popular open-source PHP web framework designed for building web applications following the MVC (Model-View-Controller) architectural pattern. It was first released on June 9, 2011, by Taylor Otwell.
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AdminFeb 3, 2020
Laravel is PHP based open-source, and free web development MVC framework like other frameworks – CodeIgniter, Symfony. Laravel is now majorly used for building high-end web applications and web services for mobile applications. Laravel is MVC framework web development developed by Taylor Otwell and first released in July 2011. Laravel Framework Overview
Ques:- Given a layout, draw its transistor level circuit. (I was given a 3 input AND gate and a 2 input Multiplexer. You can expect any simple 2 or 3 input gates)
Right Answer: For a 3-input AND gate, the transistor level circuit consists of:
- Three PMOS transistors in parallel, connected to the power supply (Vdd).
- Three NMOS transistors in series, connected to ground (GND).
For a 2-input Multiplexer, the transistor level circuit consists of:
- Two PMOS transistors in series for the true path and two NMOS transistors in parallel for the complementary path, controlled by the select line.
- The outputs of the PMOS and NMOS networks are connected to the output node.
Right Answer: A pivot table is a data processing tool that summarizes and analyzes data in a spreadsheet, like Excel. You use it by selecting your data range, then inserting a pivot table, and dragging fields into rows, columns, values, and filters to organize and summarize the data as needed.
Right Answer: To handle missing data in a dataset, you can use the following methods:
1. **Remove Rows/Columns**: Delete rows or columns with missing values if they are not significant.
2. **Imputation**: Fill in missing values using techniques like mean, median, mode, or more advanced methods like KNN or regression.
3. **Flagging**: Create a new column to indicate missing values for analysis.
4. **Predictive Modeling**: Use algorithms to predict and fill in missing values based on other data.
5. **Leave as Is**: In some cases, you may choose to leave missing values if they are meaningful for analysis.
Right Answer: The different types of data distributions include:
1. Normal Distribution
2. Binomial Distribution
3. Poisson Distribution
4. Uniform Distribution
5. Exponential Distribution
6. Log-Normal Distribution
7. Geometric Distribution
8. Beta Distribution
9. Chi-Squared Distribution
10. Student's t-Distribution
Right Answer: The purpose of feature engineering in data analysis is to create, modify, or select variables (features) that improve the performance of machine learning models by making the data more relevant and informative for the analysis.
Right Answer: You can use a hash set to solve this problem. Iterate through each element in the array and for each element, check if the difference between the target sum ( S ) and the current element exists in the hash set. If it does, you have found the two elements whose sum equals ( S ). If not, add the current element to the hash set and continue.
Here’s a sample code in Python:
```python
def find_pair_with_sum(arr, S):
seen = set()
for num in arr:
if S - num in seen:
return (num, S - num)
seen.add(num)
return None
```
This function will return a tuple of the two elements whose sum is ( S ) or `None` if no such pair exists.
Ques:- Given a string of words, number of spaces between words can be any number more than 1. Write a program to squeeze all multiple spaces into one space.
Ques:- Given a Binary Search Tree with many duplicates. Assume that while building the BST , the equal values are inserted in the left sub-tree. You just have the root pointer of the tree. Give an algorithm to delete the duplicate values. However t…
Right Answer: To determine if a graph is bipartite, you can use a BFS or DFS approach. Here’s a Python implementation using BFS:
```python
from collections import deque
def isBipartite(graph):
color = {}
for node in range(len(graph)):
if node not in color:
queue = deque([node])
color[node] = 0 # Start coloring with 0
while queue:
current = queue.popleft()
for neighbor in graph[current]:
if neighbor not in color:
color[neighbor] = 1 - color[current] # Alternate color
queue.append(neighbor)
elif color[neighbor] == color[current]:
return False # Same color on both sides
return True
# Example usage:
# graph = [[1,3],[0,2],[1,3],[0,2]] # Example of a bipartite graph
# print(isBipartite(graph))
Right Answer: In the .NET context, "managed" refers to code that is executed by the Common Language Runtime (CLR), which provides services like memory management, garbage collection, and type safety, ensuring that the code runs in a controlled environment.
