Application Development Lab · Quiz 2 · Jan 2026

Application Development Lab · Quiz 2 · Jan 2026

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Question 2 MSQ · 4.5 marks

A network monitoring system records the packet loss percentage of a router every minute. During a congestion event, the packet loss first increases and after reaching a peak it decreases as the network stabilizes. Thus the array

of packet loss values is bitonic (strictly increasing followed by strictly decreasing). The administrator wants to detect the minute when packet loss was maximum using an O(log n) algorithm based on binary search. Suppose we examine the middle element

. Let,

(left neighbor)

(right neighbor) Which of the following facts allow us to correctly narrow the search space?

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If

, then x is the peak congestion value.

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If

, then the peak congestion lies in the right half of the array.

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If

, then the peak congestion lies in the left half of the array.

6406536642309.

If

, then the peak congestion lies in the left half of the array.

6406536642310.

If

, then the peak congestion lies in the right half of the array.

A published solution is not available for this question yet.

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Question 3 MCQ · 4.5 marks

6406536642311.

6406536642312.

6406536642313.

6406536642314.

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Question 4 MCQ · 4.5 marks

Consider the following code snippet running in a browser. What will be the output on the console?

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Shield 99 99 42

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Shield 10 99 42

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Sword 99 99 42

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Shield 99 42 42

A published solution is not available for this question yet.

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Question 5 MCQ · 4.5 marks

Consider the following code snippet running on a browser. What is the output on the console?

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42 42 42

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42 undefined undefined

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42 undefined 42

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undefined undefined undefined

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Question 6 MCQ · 3.0 marks

A developer runs the following commands starting from main. Which diagram correctly shows the repository's branch structure afterwards?

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6406536642316.

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None of these.

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Question 7 MCQ · 3.0 marks

Consider the below code:

What will be the output of the above program, if executed?

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Start End File Read

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Start File Read End

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File Read Start End

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End Start File Read

A published solution is not available for this question yet.

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Question 8 MCQ · 3.0 marks

Consider the below code:

What happens when a request is made to “/”?

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Middleware A runs first, then the route handler

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The route handler runs first

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Middleware is skipped

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Server crashes

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Question 9 MCQ · 3.0 marks

Consider the following relation Employee of a Company

Which of the following options is correct?

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The query returns employees who earn less than the company-wide maximum salary and joined first in the company.

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The query returns employees who earn less than the highest salary in their department and joined earliest in their department.

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The query returns employees who earn the minimum salary in their department and joined earliest in their department.

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The query returns employees who earn less than the department’s maximum salary and joined before the latest hire in the department.

A published solution is not available for this question yet.

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Question 10 MCQ · 3.0 marks

Consider the below code:

What will the above code fetch?

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All records with all columns from the table

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One record with all columns from the table

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Only the primary keys of the table

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Nothing

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Question 11 MCQ · 3.0 marks

Consider the middleware.

What does the above middleware do?

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Generates JWT tokens

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Protects routes from unauthenticated access

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Encrypts passwords

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Connects to the database

A published solution is not available for this question yet.

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Question 12 MSQ · 3.0 marks

Consider this repository structure and the .gitignore file shown below.

Which files will not be tracked by Git?

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6406536642320.

6406536642321.

6406536642322.

6406536642323.

A published solution is not available for this question yet.

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Question 13 MSQ · 3.0 marks

Consider the following relation Orders:

Which of the following option(s) is/are correct?

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The query returns the 4 most recent orders in the database.

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The query first sorts orders by most recent order_date, and for orders on the same date by smallest amount first.

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The query returns orders ranked 7 to 10 after sorting by (order_date DESC, amount ASC).

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The query skips the 6 newest orders and returns the next 4 orders based on the sorting order.

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Question 15 MCQ · 2.0 marks

Consider the below code:

Which of the following HTTP methods will trigger this route?

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POST

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PUT

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GET

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DELETE

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Question 16 MCQ · 2.0 marks

Consider the below code:

What does the **create()** do?

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Inserts the record directly into the database.

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Deletes an existing record.

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Opens a database connection.

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Creates a new entity instance.

A published solution is not available for this question yet.

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