Serverless Computing: A Comprehensive Guide for Cloud Development

Question 1

Which of the following is a key benefit of serverless computing?

Accepted Answer

Lower infrastructure expenses

Answer

Improved application speed

Answer

Enhanced data protection

Answer

More control over the underlying infrastructure

Question 2

Which of the following is a disadvantage of serverless computing?

Accepted Answer

Increased vendor lock-in

Answer

Reduced infrastructure management

Answer

Faster development cycles

Answer

Improved scalability

Question 3

What is the core concept of serverless computing?

Accepted Answer

Developers can build and deploy applications without managing servers or infrastructure.

Answer

Servers are continuously operational, regardless of usage.

Answer

It's designed for high-performance computing tasks.

Answer

It's a cloud-based development environment without installation requirements.

Question 4

Which advantage best describes serverless computing?

Accepted Answer

Reduced infrastructure management overhead

Answer

Higher hardware expenses

Answer

Limited scalability potential

Answer

Increased development complexity

Question 5

What primary responsibility does a Function-as-a-Service (FaaS) provider fulfill?

Accepted Answer

Managing the underlying infrastructure and execution environment

Answer

Developing and deploying the user's code

Answer

Offering durable data storage solutions

Question 6

Which of the following presents a potential challenge when adopting serverless computing?

Accepted Answer

Monitoring and controlling usage costs

Answer

Excessively complex code

Answer

Frequent service outages

Answer

Severely limited customization options

Question 7

What is the main purpose of an event-driven architecture in serverless computing?

Accepted Answer

To initiate function execution based on specific triggers or conditions

Answer

To handle user authentication and authorization

Answer

To provide a graphical user interface for function management

Question 8

Which characteristic is unique to serverless functions?

Accepted Answer

Short-lived execution

Answer

Limited scalability

Answer

Coarse-grained billing

Question 9

How do stateless and stateful serverless functions differ primarily?

Accepted Answer

Stateful functions preserve data between invocations, while stateless functions do not.

Answer

Stateful functions are always event-driven, whereas stateless functions are not.

Answer

Stateless functions are inherently more scalable than stateful functions.

Question 10

What is the primary purpose of a serverless API gateway?

Accepted Answer

To serve as a unified entry point for clients to access serverless functions

Answer

To monitor and log serverless function executions

Answer

To manage authentication and authorization for serverless functions

Question 11

Which approach is considered a best practice for designing serverless functions?

Accepted Answer

Creating functions that are focused and perform a single task

Answer

Implementing complex algorithms and data structures in functions

Answer

Avoiding the use of third-party libraries in functions

Question 12

What is the primary function of a serverless event bus?

Accepted Answer

To facilitate communication and data exchange between serverless functions and other systems or services

Answer

To provide a user interface for serverless function development

Answer

To manage the deployment and scaling of serverless functions

Question 13

Which of the following is a key advantage of serverless computing?

Accepted Answer

Reduced infrastructure management overhead

Answer

Guaranteed performance

Answer

Elimination of vendor lock-in

Answer

Reduced application complexity

Question 14

Which of the following is NOT a type of serverless computing model?

Accepted Answer

Infrastructure as a Service (IaaS)

Answer

Function as a Service (FaaS)

Answer

Backend as a Service (BaaS)

Answer

Platform as a Service (PaaS)

Question 15

Which of the following AWS services is an example of FaaS?

Accepted Answer

AWS Lambda

Answer

Amazon EC2

Answer

Amazon S3

Answer

Amazon RDS

Question 16

Which of the following is a potential challenge associated with serverless computing?

Accepted Answer

Vendor lock-in

Answer

High latency

Answer

Reduced cost

Answer

Unlimited scalability

Question 17

Which of the following best describes the architectural style that is typically used in serverless computing?

Accepted Answer

Event-driven

Answer

Client-server

Answer

Stateful

Answer

Monolithic

Question 18

Which of the following is a practical use case for serverless computing?

Accepted Answer

Processing real-time data streams

Answer

Providing virtual desktops

Answer

Maintaining complex relational databases

Answer

Hosting large enterprise websites

Question 19

Which of the following factors should be considered when designing serverless applications?

Accepted Answer

Robust error handling mechanisms

Answer

Load balancing algorithms

Answer

Network configuration

Answer

Instance size optimization

Question 20

Which of the following is a recommended practice for monitoring serverless applications?

Accepted Answer

Utilizing native logging and tracing tools provided by cloud platforms

Answer

Relying solely on third-party monitoring services

Answer

Disabling logging to reduce costs

Answer

Manually inspecting individual function logs

Question 21

Which of the following is a potential impact of serverless computing on DevOps practices?

Accepted Answer

Faster release cycles and reduced time to market

Answer

Elimination of human involvement

Answer

Increased infrastructure complexity

Answer

Reduced need for automation

Question 22

Which of the following is NOT a typical benefit of serverless computing?

Accepted Answer

Increased cost predictability for all scenarios

Answer

Improved scalability for handling spikes in demand

Answer

Reduced infrastructure management overhead, freeing up development time

Answer

Faster application development with quicker deployment cycles

Question 23

What is the main responsibility of a Function as a Service (FaaS) provider?

Accepted Answer

Managing the underlying infrastructure and runtime environment for your code

Answer

Storing and managing user data for your serverless applications

Answer

Writing the actual application code for your serverless functions

Question 24

Which of these is considered a best practice for designing serverless applications?

Accepted Answer

Break down your application into loosely coupled, independent functions

Answer

Minimize the number of functions to reduce overhead and complexity

Answer

Store all data in a single database for simplicity and efficiency

Answer

Use long-running processes within functions to maximize resource utilization

Question 25

What is the primary purpose of a serverless API gateway?

Accepted Answer

To act as a central point of entry, routing requests to the appropriate serverless functions

Answer

To store and manage application data for your serverless applications

Answer

To orchestrate and manage the execution order of different serverless functions

Question 26

What is a key difference between Platform as a Service (PaaS) and serverless computing?

Accepted Answer

Serverless computing eliminates the need to manage servers and runtime environments, leaving you to focus solely on your code

Answer

PaaS typically provides a wider range of pre-built services compared to serverless computing

Answer

Serverless computing is always more cost-effective than PaaS for all applications

Question 27

What is the primary role of containers in a serverless computing environment?

Accepted Answer

To package and isolate your serverless functions, ensuring they run consistently across different environments

Answer

To store and manage application data for your serverless functions

Answer

To handle the communication between different serverless functions

Answer

To provide the runtime environment for executing serverless functions

Question 28

Which of the following metrics is commonly used to monitor the performance of serverless applications?

Accepted Answer

Function execution duration, measuring the time it takes for a function to complete

Answer

Database query performance, a metric for database efficiency but not specific to serverless

Answer

Network latency, a general network performance metric

Answer

Virtual machine utilization, relevant in traditional server-based environments

Question 29

What is a "cold start" in the context of serverless computing?

Accepted Answer

The initial delay that occurs when a serverless function is invoked for the first time after a period of inactivity

Answer

The period of inactivity between invocations of a serverless function

Answer

The time it takes for a serverless function to complete its execution after being invoked

Question 30

Which of the following is a potential challenge associated with adopting serverless computing?

Accepted Answer

Vendor lock-in, where switching providers can be difficult and costly

Answer

Poor performance compared to traditional architectures, generally not true with optimized serverless solutions

Answer

High cost of development, often offset by reduced operational costs in the long run

Answer

Limited customization options, often not a significant issue with modern serverless platforms

Question 31

What is the primary advantage of using a serverless database in a serverless application?

Accepted Answer

Elasticity and automatic scaling, adapting to changes in data volume and usage

Answer

Enhanced data security features, generally provided by the database provider but not unique to serverless

Answer

Improved performance for complex queries, not necessarily a core benefit of serverless databases

Answer

Lower cost compared to traditional databases, not always guaranteed and dependent on usage