Modern Application Development II End Term: 21 December 2025 (September 2025 term)

Select all that apply.

1. A

   Parent can listen with @update

2. B

   Parent receives payload via $event

3. C

   Child can directly modify parent state

4. D

   $emit triggers a DOM event

1. A

   2

2. B

   4

3. C

   Undefined

4. D

   Error

1. A

   Storing passwords as plain text in the database for quick lookup

2. B

   Using hashing algorithms like "bcrypt" or "Argon2" to store passwords securely

3. C

   Including user passwords directly in SQL queries for verification

4. D

   All of these

1. A

   secure=True and samesite='Strict'

2. B

   secure=False and samesite='Strict'

3. C

   secure=True and samesite='None'

4. D

   secure=False and samesite='Lax'

1. A

   Redis can only store strings, unlike API data stores which can handle complex structures.

2. B

   Redis is an in-memory data structure store, often used as a cache or message broker to complement API-based data stores.

3. C

   Redis is a relational database and queries data using SQL, just like an API data store.

4. D

   Redis is slower than API-based databases because it stores everything in memory.

1. A

   Backend validation of user input and make sure any user-provided text is not executed as code.

2. B

   Store authentication token or jwt in cookies.

3. C

   Use v-html to show user generated data.

4. D

   Send cookies with every request to the backend.

Select all that apply.

1. A

   In-memory database

2. B

   Can support publish-subscribe (pub/sub)

3. C

   Can be used as Celery result backend

4. D

   Requires SQL to query

1. A

   It should be modified only through mutations

2. B

   It should be modified only through actions

3. C

   It cannot contain nested objects

4. D

   It should be modified by getters

1. A

   To automatically retry failed tasks

2. B

   To execute tasks in parallel

3. C

   To return computed results in JSON format

4. D

   To store scheduled tasks and serve as a message broker

1. A

2. B

3. C

4. D

1. A

   [2, 4, 6]

2. B

   [6]

3. C

   [4, 6]

4. D

   [1, 2, 3]

1. A

   50

2. B

   undefined

3. C

   Error

4. D

   7

1. A

   User Orders

2. B

   User 10 User Overview

3. C

   User 10 User Orders

4. D

   Nothing is rendered because sibling routes overwrite the parent route.

1. A

   The theme will be lost because closing the browser tab clears localStorage

2. B

   The theme will be preserved as "dark" because localStorage persists across browser sessions

3. C

   The theme will be undefined because localStorage is cleared on refresh

4. D

   The theme will be reset to "light" when a new tab is opened

1. A

   v-if removes the element from DOM when false, v-show only changes CSS display property

2. B

   v-show removes the element from DOM when false, v-if only changes CSS display property

3. C

   Both v-if and v-show re-mount the element and re-run lifecycle hooks

4. D

   Both directives are identical in their functionality; they just have different naming conventions

1. A

   hello

2. B

   hello WORLD

3. C

   HELLO WORLD

4. D

   An error will be thrown

1. A

   5000

2. B

   3000

3. C

   10000

4. D

   undefined

Select all that apply.

1. A

   In a regular function, "this" is always bound to the global object (window in browsers)

2. B

   In an arrow function, "this" is inherited from the enclosing lexical scope

3. C

   The .call() method can be used to explicitly set the context of "this" in a function

4. D

   In a method called on an object, "this" always refers to that object regardless of how the function is defined

1. A

   The component will throw a critical error and crash the application

2. B

   The computed property will return undefined because the component hasn't mounted yet

3. C

   The route parameter will not be accessible in the computed property

4. D

   The component will display data from the previously loaded route

1. A

   The token will be preserved and available in the new browser session.

2. B

   The token will be cleared because sessionStorage is cleared when the browser is closed.

3. C

   The token will be partially available but require re-authentication.

4. D

   The token will move to localStorage automatically.

1. A

   true true true true

2. B

   true false true true

3. C

   false true true false

4. D

   true true false false

Select all that apply.

1. A

   Webhooks guarantee that the notification service will process events in the exact order they were triggered

2. B

   Redis is suitable for this use case because it's an in-memory data structure store that provides fast access to cached data

3. C

   The webhook will automatically retry if the notification service is temporarily unavailable

4. D

   Webhooks use HTTP POST requests to communicate events asynchronously

1. A

   expensive() runs again because the DOM updates

2. B

   expensive() does NOT run again because its dependencies did not change

3. C

   Vue recomputes all computed properties on any state change

4. D

   Nothing is displayed

1. A

   When this.time changes

2. B

   The user clicks anywhere on the DOM

3. C

   Either this.a or this.b changes

4. D

   When Date.now() changes

Select all that apply.

1. A

   Reduced CPU usage

2. B

   Faster rendering

3. C

   Avoids unnecessary recomputation

4. D

   Makes all computations asynchronous

1. A

2. B

3. C

4. D

1. A

   Without it, the userId in data would never change when the route changes.

2. B

   It is required because Vue Router does not automatically update component data.

3. C

   It prevents the component from being destroyed and recreated on every navigation.

4. D

   Both Without it, the userId in data would never change when the route changes and It is required because Vue Router does not automatically update component data are correct.

1. A

   An empty array because displayedProducts is initialized as null

2. B

   All three products because the watch handler hasn't been triggered yet

3. C

   Only the Laptop and Phone (both electronics)

4. D

   The data will show an error because the category doesn't exist in the array

1. A

   The computed property will not update because it's being used in a watch handler

2. B

   The computed property will automatically re-evaluate because the route parameter dependency changed

3. C

   The displayedProducts variable will update, but the computed property will display stale data

4. D

   Both the computed property and displayedProducts will update to show books