Requirements and game rules in LLD - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the primary goal of system design.

LLD

The main objective of system design is to [1] a system that meets user needs.

Drag options to blanks, or click blank then click option'

Abuild

Bignore

Ccomplicate

Ddelay

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing words that do not relate to creating or delivering a system.

The goal is to build a system that meets user needs effectively.

2fill in blank

medium

Complete the code to identify a key requirement in system design.

LLD

A system must be [1] to handle increasing users without failure.

Drag options to blanks, or click blank then click option'

Ascalable

Bfragile

Cslow

Dstatic

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing words that imply weakness or no growth.

A system must be scalable to grow and handle more users smoothly.

3fill in blank

hard

Fix the error in the statement about system reliability.

LLD

System reliability means the system is [1] and available when needed.

Drag options to blanks, or click blank then click option'

Aunavailable

Bunpredictable

Cslow

Dreliable

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing reliability with speed or availability.

Reliability means the system is reliable and works as expected.

4fill in blank

hard

Fill both blanks to describe system design principles.

LLD

A good system design is [1] and [2] to changes.

Drag options to blanks, or click blank then click option'

Aflexible

Brigid

Cadaptable

Dcomplex

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing words that imply inflexibility or complexity.

Systems should be flexible and adaptable to handle changes easily.

5fill in blank

hard

Fill all three blanks to complete the system design goals.

LLD

The system should be [1], [2], and [3] for users.

Drag options to blanks, or click blank then click option'

Asecure

Beasy to use

Cfast

Dexpensive

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing options that make the system hard or costly to use.

Systems must be secure, easy to use, and fast to satisfy users.

Practice

1. What is the main purpose of requirements in game design?

easy

A. To describe what the game must do

B. To explain how players should play

C. To decide the game's graphics style

D. To set the game's price

Solution

1. Step 1: Understand the role of requirements

   Requirements define the features and functions the game must have to work properly.

2. Step 2: Differentiate from rules

   Rules tell players how to play, not what the game must do technically.

3. Final Answer:

   To describe what the game must do -> Option A

4. Quick Check:

   Requirements = what game must do [OK]

Hint: Requirements = what game must do, rules = how to play [OK]

Common Mistakes:

• Confusing requirements with rules
• Thinking requirements set player behavior
• Mixing technical needs with gameplay instructions

2. Which of the following is a correct way to write a game rule?

easy

A. The game must load in under 5 seconds

B. Players must collect 10 coins to win

C. Use a database to store player scores

D. The game engine should support 3D graphics

Solution

1. Step 1: Identify what a game rule is

   A game rule tells players what they must or must not do during play.

2. Step 2: Check each option

   Players must collect 10 coins to win is a player instruction (rule). Options B, C, D are technical requirements.

3. Final Answer:

   Players must collect 10 coins to win -> Option B

4. Quick Check:

   Rules = player instructions [OK]

Hint: Rules tell players what to do, not technical details [OK]

Common Mistakes:

• Confusing technical requirements with rules
• Writing rules as system features
• Ignoring player actions in rules

3. Given these statements, which one is a requirement rather than a rule?
1. Players can jump over obstacles.
2. The game must save progress automatically.
3. Players lose a life if they touch spikes.
4. The game ends after 3 levels.

medium

A. The game must save progress automatically

B. Players lose a life if they touch spikes

C. Players can jump over obstacles

D. The game ends after 3 levels

Solution

1. Step 1: Identify requirements vs rules

   Requirements describe system features; rules describe player actions and consequences.

2. Step 2: Analyze each statement

   Statement 2 is a system feature (requirement). Others describe player actions (rules).

3. Final Answer:

   The game must save progress automatically -> Option A

4. Quick Check:

   Requirement = system feature [OK]

Hint: Requirements = system features; rules = player actions [OK]

Common Mistakes:

• Mixing player actions with system features
• Choosing rules as requirements
• Ignoring automatic system behaviors

4. A game designer wrote this rule: Players must collect 5 coins to win. But players can win without coins. What is the likely problem?

medium

A. The game has too many levels

B. The requirement is missing

C. The rule is not enforced in the game logic

D. The game has a syntax error

Solution

1. Step 1: Understand the problem

   The rule says players must collect coins, but they can win without doing so.

2. Step 2: Identify cause

   This means the game logic does not enforce the rule properly.

3. Final Answer:

   The rule is not enforced in the game logic -> Option C

4. Quick Check:

   Rule enforcement = game logic implementation [OK]

Hint: If rule ignored, check game logic enforcement [OK]

Common Mistakes:

• Confusing missing requirement with rule enforcement
• Assuming syntax error causes rule failure
• Ignoring game logic role

5. You want to design a fair multiplayer game. Which combination best ensures fairness and fun?

hard

A. Flexible rules with no system requirements

B. Complex rules that confuse players and minimal system requirements

C. No rules but strict technical requirements

D. Clear rules for player actions and balanced requirements for system performance

Solution

1. Step 1: Define fairness and fun

   Fairness needs clear rules; fun needs smooth system performance (requirements).

2. Step 2: Evaluate options

   Clear rules for player actions and balanced requirements for system performance combines clear player rules and balanced system needs, ensuring fairness and fun.

3. Final Answer:

   Clear rules for player actions and balanced requirements for system performance -> Option D

4. Quick Check:

   Fairness + fun = clear rules + balanced requirements [OK]

Hint: Fair game = clear rules + balanced system needs [OK]

Common Mistakes:

• Choosing complex or missing rules
• Ignoring system performance impact
• Separating rules from requirements