Mock Interview Questions

What is system design and why is it important?

What are the key principles of system design?

What is the difference between monolithic and microservices architecture?

What are the benefits of using microservices architecture?

What is the role of APIs in system design?

What is the difference between RESTful and GraphQL APIs?

What is the importance of security in system design?

What is the role of databases in system design?

What are the different types of databases?

What is the importance of caching in system design?

What is the role of load balancing in system design?

What is the importance of monitoring and logging in system design?

What is the role of continuous integration and continuous deployment (CI/CD) in system design?

What is the importance of scalability in system design?

What are the different scalability models?

What is the role of cloud computing in system design?

What are the different cloud deployment models?

What is the importance of disaster recovery in system design?

What is the role of DevOps in system design?

What are the different DevOps tools and technologies?

What is the importance of testing in system design?

What are the different types of testing?

What is the role of automation in system design?

What are the different automation tools and technologies?

What is the importance of documentation in system design?

What are the different types of documentation?

What is the role of communication in system design?

What are the different communication channels?

What is the importance of stakeholder management in system design?

What are the different stakeholder management strategies?

What is the role of project management in system design?

What are the different project management methodologies?

What is the importance of risk management in system design?

What are the different risk management strategies?

What is the role of quality assurance in system design?

What are the different quality assurance processes?

Design a system to cache frequently accessed web pages

class WebPageCache: def __init__(self, capacity): self.capacity = capacity self.cache = {
}
def get(self, url): if url in self.cache: return self.cache[url] else: page = fetch_page(url) self.cache[url] = page if len(self.cache) > self.capacity: del self.cache[next(iter(self.cache))] return page def fetch_page(url): # simulate fetching a web page return 'content of ' + url

Implement a load balancer to distribute traffic across multiple servers

class LoadBalancer: def __init__(self): self.servers = [] self.current_server = 0 def add_server(self, server): self.servers.append(server) def remove_server(self, server): self.servers.remove(server) def get_server(self): server = self.servers[self.current_server] self.current_server = (self.current_server + 1) % len(self.servers) return server

Design a system to monitor and log system performance metrics

class SystemMonitor: def __init__(self): self.metrics = {
}
def add_metric(self, name, value): self.metrics[name] = value def get_metric(self, name): return self.metrics.get(name) def log_metrics(self): for name, value in self.metrics.items(): print(f'{
name}
: {
value}
')

Implement a system to handle user authentication and authorization

class Authenticator: def __init__(self): self.users = {
}
def add_user(self, username, password): self.users[username] = password def authenticate(self, username, password): return self.users.get(username) == password def authorize(self, username, permission): return username in self.users and self.users[username] == permission

Design a system to manage and allocate resources in a cloud environment

class ResourceManager: def __init__(self): self.resources = {
}
def add_resource(self, name, quantity): self.resources[name] = quantity def allocate_resource(self, name, quantity): if name in self.resources and self.resources[name] >= quantity: self.resources[name] -= quantity return True else: return False def deallocate_resource(self, name, quantity): if name in self.resources: self.resources[name] += quantity

Implement a system to handle and process large datasets

class DataProcessor: def __init__(self): self.data = [] def add_data(self, data): self.data.append(data) def process_data(self): for data in self.data: # process data pass def get_result(self): return self.data

Design a system to provide real-time analytics and insights

class AnalyticsSystem: def __init__(self): self.data = [] def add_data(self, data): self.data.append(data) def get_insights(self): insights = [] for data in self.data: # analyze data and generate insights insights.append(insight) return insights

Implement a system to handle and manage user sessions

class SessionManager: def __init__(self): self.sessions = {
}
def create_session(self, user_id): session_id = generate_session_id() self.sessions[session_id] = user_id return session_id def get_session(self, session_id): return self.sessions.get(session_id) def delete_session(self, session_id): if session_id in self.sessions: del self.sessions[session_id]

Design a system to provide secure and reliable data storage

class DataStorage: def __init__(self): self.data = {
}
def add_data(self, key, value): self.data[key] = value def get_data(self, key): return self.data.get(key) def delete_data(self, key): if key in self.data: del self.data[key]

Implement a system to handle and manage network connections

class ConnectionManager: def __init__(self): self.connections = {
}
def add_connection(self, connection_id, connection): self.connections[connection_id] = connection def get_connection(self, connection_id): return self.connections.get(connection_id) def delete_connection(self, connection_id): if connection_id in self.connections: del self.connections[connection_id]

Design a system to provide scalable and efficient data processing

class DataProcessor: def __init__(self): self.data = [] def add_data(self, data): self.data.append(data) def process_data(self): for data in self.data: # process data pass def get_result(self): return self.data