CSC481 · TU past paper
Introduction to Cloud Computing 2079 question paper
The complete TU 2079 exam paper for Introduction to Cloud Computing (CSC481), all 12 questions with solved model answers written to the mark scheme.
Tap a question to open its answer.
- 110 marksPublic cloudsHideAnswer
Define cloud computing. Discuss various cloud deployment models.[10]
--- Cloud computing is a model for enabling on-demand network access to a shared pool of configurable computing resources (such as servers, storage, applications, and services) that can be rapidly provisioned and released with minimal ma...
- 210 marksParallel efficiency of Map-ReduceHideAnswer
What is parallel efficiency of map-reduce means? Compare between thread, task and map-reduce.[10]
--- Parallel efficiency of MapReduce means the effectiveness of utilizing computational resources and achieving speedup when executing a MapReduce job on a distributed computing system. It measures how well the system scales and utilizes...
- 310 marksdifferent types of VirtualizationHideAnswer
What is virtualization? Why is virtualization perfect of cloud computing? Discuss different types of virtualization.[10]
--- Virtualization in cloud computing refers to the technique of creating virtual versions or representations of various computing resources, such as servers, storage devices, networks, and operating systems. It involves abstracting the ...
- 45 marksCloud adoptionHideAnswer
What is cloud adoption? What factor lead organization to adopt cloud? [5]
Cloud adoption refers to the process by which an organization moves its data, applications, workloads, and IT infrastructure from traditional on-premises systems to cloud-based environments. It involves strategically integrating cloud co...
- 55 marksPlatform as serviceHideAnswer
Describe the services provided under Platform-as-a-service? [5]
Platform-as-a-Service (PaaS) is a cloud computing model that provides a complete development and deployment environment in the cloud. It delivers a platform allowing customers to develop, run, and manage applications without the complexi...
- 65 marksLoad balancingHideAnswer
What is load balancing? How is load balancing done? [5]
Load Balancing
Definition
Load balancing refers to the process of distributing a set of tasks over a set of resources with the aim of making their overall processing more efficient. It optimizes response time and avoids unevenly overloading some compute nodes while other nodes are left idle. In the context of networking and cloud computing, it refers to distributing incoming network traffic across a group of backend servers.
How Load Balancing is Done
Load balancing is typically performed using a load balancer, which sits between the client and the backend server pool. The following are the common methods/algorithms used to perform load balancing:
1. Round Robin
- Requests are distributed to each server in a sequential, cyclic order.
- Simple and easy to implement.
- Works well when all servers have equal capacity.
2. Least Connection Method
- The load balancer directs traffic to the server with the fewest active connections at that moment.
- Suitable when requests have varying processing times.
3. IP Hash Method
- The client's IP address is used to determine which server receives the request.
- Ensures that a particular client is always directed to the same server (session persistence).
4. Weighted Round Robin
- Each server is assigned a weight based on its capacity.
- Servers with higher weights receive more requests than those with lower weights.
- Useful when servers have different processing capabilities.
5. Resource-Based (Adaptive) Load Balancing
- The load balancer checks the current load/health of each server (CPU usage, memory, etc.) before forwarding a request.
- Requests are sent to the server with the most available resources.
Benefits of Load Balancing
Benefit Description Improved Performance Distributes workload evenly, reducing response time High Availability If one server fails, traffic is redirected to others Scalability New servers can be added easily to handle more load No Single Point of Failure Ensures continuous service availability
Summary
Load balancing is a critical technique in cloud computing and distributed systems that ensures efficient resource utilization, high availability, and optimal response time by intelligently distributing tasks or network traffic across multiple servers or nodes.
- 75 marksSoftware-as-a-Service SecurityHideAnswer
Discuss the features provided under Security-as-a-service in the cloud? [5]
Security-as-a-Service (SECaaS) is a cloud-based model in which security services are delivered over the internet by a third-party provider, allowing organizations to outsource their security needs rather than managing them on-premises. I...
- 85 marksSecurity Architecture DesignHideAnswer
Describe the guidelines and principles to be followed while designing cloud security architecture? [5]
Security Architecture Design in cloud refers to a standardized blueprint established for designing, building, and testing the security of applications and systems. It gives engineers, data center operations staff, and network operations ...
- 95 marksCloud StorageHideAnswer
What is bucket in Amazon Web Service (AWS). How bucket is created? [5]
In Amazon Simple Storage Service (Amazon S3), a bucket is a container for storing objects (files) in the cloud. It acts as the top-level folder or directory within S3, and can be thought of as a logical unit where data is stored and orga...
- 105 marksAppEngineHideAnswer
How developers can use Google AppEngine for development and hosting services? [5]
Google App Engine (GAE) is a Platform as a Service (PaaS) offering from Google that allows developers to build, test, deploy, and host web applications on Google's infrastructure without managing the underlying hardware or operating syst...
- 115 marksAzures PlatformHideAnswer
Explain the various services provided under Azure platform? [5]
Microsoft Azure Platform (MAP), originally known as Windows Azure, is a public cloud computing platform developed by Microsoft. It provides solutions such as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software ...
- 125 marksScientific applicationsHideAnswer
Describe how cloud computing technology can be applied to support remote ECG monitoring as part of scientific application? [5]
Cloud computing technology has found significant application in the healthcare domain, particularly in supporting scientists and doctors in developing preventive solutions for heart-related diseases. One of the most prominent examples is...