Table of Contents
VIIIth Semester Examination – 2023 (Code: 100817)
Question (a): Amazon EC2 is which type of clouding computing model?
- (i) compliance as a service
- (ii) infrastructure as a service
- (iii) platform as a service
- (iv) software as a service
Correct Answer: (ii) infrastructure as a service
Question (b): What does CAAS stand for?
- (i) Computing as a service
- (ii) Compliance as a service
- (iii) Connection as a service
- (iv) None of these
Correct Answer: (iv) None of these (Note for your readers: CaaS most commonly stands for “Container as a Service” or “Communications as a Service” in modern cloud terminology).
Question (c): What is private cloud?
- (i) A standard cloud service offered via the Internet
- (ii) A cloud architecture maintained within enterprise data centre.
- (iii) A cloud service inaccessible to anyone but the culture elite.
- (iv) None of the above
Correct Answer: (ii) A cloud architecture maintained within enterprise data centre.
Question (d): Which of the following cloud concept is related to pooling and sharing of resources?
- (i) Polymorphism
- (ii) Abstraction
- (iii) Virtualization
- (iv) None of the mentioned
Correct Answer: (iii) Virtualization
Question (e): The technology used to distribute service requests to resources is referred to as
- (i) load performing
- (ii) load scheduling
- (iii) load balancing
- (iv) All of the mentioned
Correct Answer: (iii) load balancing
Question (f): Different message passing topologies in SOA are respectively Circular, Network Star and
- (i) Stove and pipe
- (ii) Hub and Spoke
- (iii) Mesh
- (iv) Hierarchical
Correct Answer: (iii) Mesh (Network topologies generally follow Circular/Ring, Star, and Mesh. Hub and Spoke is also correct in SOA contexts, but Mesh completes the standard network topology triad).
Question (g): Which one is not a second level attribute of Storage attribute?
- (i) Query
- (ii) Non-Relational
- (iii) Data access
- (iv) Replication
Correct Answer: (ii) Non-Relational (Non-relational describes a database type, not a measurable attribute of storage like data access or replication).
Question (h): What are the technology that played a vital role in cloud computing?
- (i) Mainframe
- (ii) Utility Computing. Grid Computing. API
- (iii) Web 2.0, Virtualization, Service Oriented Computing
- (iv) Database Super computers.
Correct Answer: (iii) Web 2.0, Virtualization, Service Oriented Computing
Question (i): Which of the following techniques is vital for creating cloud computing environments?
- (i) virtualization
- (ii) personalization
- (iii) localization
- (iv) all of these
Correct Answer: (i) virtualization
Question (j): Which of the following is not a cloud computing service/solution?
- (i) Amazon EC2
- (ii) Google GAE
- (iii) IBM Deep Blue
- (iv) Microsoft Azure
Correct Answer: (iii) IBM Deep Blue (Deep Blue was a chess-playing supercomputer, not a cloud platform).
Special Examination – 2023 (Code: 100817)
(Note: This paper featured short-answer definition questions instead of MCQs. Here are concise answers for your readers).
Question (a): What is encryption? Define the types of encryption
Answer: Encryption is the process of converting plain text into an unreadable format (ciphertext) to secure it from unauthorized access. The two main types are Symmetric Encryption (uses the same key for encryption and decryption) and Asymmetric Encryption (uses a public key for encryption and a private key for decryption).
Question (b): What is utility computing?
Answer: Utility computing is a service provisioning model where a provider makes computing resources (like storage and processing power) available to the customer as needed, charging them based on specific usage rather than a flat rate (similar to a water or electricity bill).
Question (c): What is cloud computing? Give a formal definition as per NIST.
Answer: According to NIST, Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.
Question (d): What is meant by Elasticity and Multitenancy?
Answer: Elasticity is the ability of a cloud environment to dynamically and automatically scale computing resources up or down in response to workload demand. Multitenancy is an architecture where a single instance of a software application serves multiple customers (tenants), keeping their data isolated while sharing the underlying infrastructure.
Question (e): Define Service-Oriented Architecture (SOA).
Answer: SOA is an architectural style in software design where applications are built out of discrete, reusable software components (services) that communicate with each other over a network, independent of the vendors, products, and technologies.
Question (f): Define Digital signature.
Answer: A digital signature is a mathematical technique used to validate the authenticity and integrity of a digital message, software, or document, ensuring that it was created by a known sender and was not altered in transit.
Question (g): Define Hypervisor.
Answer: A hypervisor (or Virtual Machine Monitor) is a software, firmware, or hardware layer that creates, runs, and manages virtual machines by abstracting and dividing the underlying physical hardware resources.
Question (h): What is Service-Level Agreement?
Answer: A Service-Level Agreement (SLA) is a documented contract between a cloud service provider and a customer that defines the expected level of service, including performance metrics (like uptime guarantees), responsibilities, and penalties if those standards are not met.
Question (i): Discuss the role of Internet in the growth of cloud computing.
Answer: The Internet acts as the universal delivery medium for cloud computing. Widespread availability of high-speed, reliable broadband has made it possible for users to access heavy computing resources and remote storage seamlessly from anywhere in the world.
Question (j): Write a short note on hardware virtualization.
Answer: Hardware virtualization involves using a hypervisor to create virtual versions of computers or operating systems. It allows multiple OS instances to run simultaneously on a single physical machine by distributing the hardware’s CPU, memory, and storage among the virtual machines.
B.Tech. 8th Semester Examination, 2024 (Code: 100817)
Question (a): Which of the following is a characteristic of Cloud Computing?
- (i) On-demand self-service
- (ii) Limited network access
- (iii) Fixed storage capacity
- (iv) High maintenance costs
Correct Answer: (i) On-demand self-service
Question (b): Which cloud service model provides hardware resources over the internet?
- (i) SaaS
- (ii) PaaS
- (iii) IaaS
- (iv) DaaS
Correct Answer: (iii) IaaS (Infrastructure as a Service)
Question (c): What is elasticity in cloud computing?
- (i) The ability to run multiple applications simultaneously
- (ii) The ability to adapt to changing workload demands
- (iii) The ability to connect to various cloud providers
- (iv) The ability to recover from failures
Correct Answer: (ii) The ability to adapt to changing workload demands
Question (d): What is the primary function of a hypervisor in cloud computing?
- (i) To manage data storage
- (ii) To create and manage virtual machines
- (iii) To enhance network security
- (iv) To provide user interfaces
Correct Answer: (ii) To create and manage virtual machines
Question (e): Which of the following best describes ‘scalability’ in cloud computing?
- (i) Ability to downgrade services
- (ii) Ability to handle increased workloads
- (iii) Ability to provide continuous uptime
- (iv) Ability to ensure data security
Correct Answer: (ii) Ability to handle increased workloads
Question (f): Which of the following is NOT a benefit of cloud computing?
- (i) Cost efficiency
- (ii) Increased security
- (iii) Flexibility
- (iv) On-premises hardware dependency
Correct Answer: (iv) On-premises hardware dependency
Question (g): Which of the following is a major concern in cloud computing?
- (i) Scalability
- (ii) Security
- (iii) Cost
- (iv) Flexibility
Correct Answer: (ii) Security
Question (h): What is the primary advantage of using cloud storage?
- (i) High cost
- (ii) Limited accessibility
- (iii) Scalability and flexibility
- (iv) Manual maintenance
Correct Answer: (iii) Scalability and flexibility
Question (i): What is ‘serverless computing’?
- (i) Running applications without a server
- (ii) Outsourcing server management to a cloud provider
- (iii) Using servers without virtualization
- (iv) Automatically scaling applications based on demand
Correct Answer: (iv) Automatically scaling applications based on demand (While ‘ii’ is also a factor, ‘iv’ best describes the functional benefit developers experience).
Question (j): What is the main purpose of a Content Delivery Network (CDN) in cloud computing?
- (i) To improve database performance
- (ii) To enhance application development
- (iii) To distribute content closer to end-users
- (iv) To secure cloud resources
Correct Answer: (iii) To distribute content closer to end-users
B.Tech 8th Semester Examination, 2024(S) (Code: 100817)
Question (a): Service Level Agreements (SLAs) in cloud computing often define which of the following QoS parameters?
- (i) Bandwidth
- (ii) Latency
- (iii) Scalability
- (iv) All of these
Correct Answer: (iv) All of these
Question (b): Which of the following is NOT a key QoS parameter in cloud computing?
- (i) Latency
- (ii) Data Encryption
- (iii) Bandwidth
- (iv) Availability
Correct Answer: (ii) Data Encryption (Encryption is a security parameter, whereas QoS focuses on performance metrics like latency, bandwidth, and availability).
Question (c): What is the key challenge in live VM migration?
- (i) High CPU utilization
- (ii) Reducing network bandwidth usage
- (iii) Preserving the state and memory of the VM during migration
- (iv) Ensuring complete migration within a fixed time
Correct Answer: (iii) Preserving the state and memory of the VM during migration
Question (d): Which tool is commonly used for resource provisioning in cloud environments?
- (i) Ansible
- (ii) Terraform
- (iii) CloudFormation
- (iv) All of the above
Correct Answer: (iv) All of the above
Question (e): In a multi-tenant cloud environment, one of the primary risks is:
- (i) Resource over-provisioning
- (ii) Reduced hardware efficiency
- (iii) Data leakage between tenants
- (iv) Increased latency
Correct Answer: (iii) Data leakage between tenants
Question (f): Which of the following is an example of a Type 1 hypervisor?
- (i) Oracle VirtualBox
- (ii) Microsoft Hyper-V
- (iii) VMware Workstation
- (iv) Parallel Desktops
Correct Answer: (ii) Microsoft Hyper-V (The others are Type 2/Hosted hypervisors).
Question (g): Which type of virtualization allows multiple operating systems to run on a single physical machine?
- (i) Application virtualization
- (ii) Storage virtualization
- (iii) Network virtualization
- (iv) Hardware virtualization
Correct Answer: (iv) Hardware virtualization
Question (h): Which of the following is an essential concept related to Cloud?
- (i) Reliability
- (ii) Productivity
- (iii) Abstraction
- (iv) All of these
Correct Answer: (iii) Abstraction (Abstraction and Virtualization are the two foundational technical concepts behind cloud computing. Reliability and productivity are benefits/outcomes).
May be option (iii) All of these is correct
Question (i): The ___ allows systems and services to be accessible by a group of organizations.
- (i) Private Cloud
- (ii) Hybrid Cloud
- (iii) Public Cloud
- (iv) Community Cloud
Correct Answer: (iv) Community Cloud
Question (j): Which one of the following is Cloud Platform by Amazon?
- (i) Azure
- (ii) Cloudera
- (iii) AWS
- (iv) All of these
Correct Answer: (iii) AWS (Amazon Web Services)
B.Tech 8th Semester Examination, 2025 (Code: 100817)
Question (a): Which of the following is the basis for cloud computing?
- (i) Modulation.
- (ii) Hybridization.
- (iii) Virtualization.
- (iv) Transmutation.
Correct Answer: (iii) Virtualization.
Question (b): PaaS stands for?
- (i) Platform as a service.
- (ii) Platform as a software.
- (iii) Parallel as a service.
- (iv) None of the given options.
Correct Answer: (i) Platform as a service.
Question (c): Which of the following is examples of SaaS cloud computing?
- (i) Dropbox.
- (ii) Salesforce.
- (iii) Google workspace.
- (iv) All of the given options.
Correct Answer: (iv) All of the given options.
Question (d): What is the primary purpose of a hypervisor in virtualization?
- (i) To create virtual hard disks.
- (ii) To manage network connections.
- (iii) To allocate hardware resources and manage virtual machines (VM).
- (iv) To manage the guest operating systems (OS).
Correct Answer: (iii) To allocate hardware resources and manage virtual machines (VM).
Question (e): What is the most important concern of cloud computing?
- (i) Cost.
- (ii) Security.
- (iii) Space.
- (iv) Platform.
Correct Answer: (ii) Security.
Question (f): Which of the following is the most appropriate basis for utility computing?
- (i) Virtual isolation model.
- (ii) Grid computing model.
- (iii) Pay-per-use model.
- (iv) Service-oriented architecture.
Correct Answer: (iii) Pay-per-use model.
Question (g): Which of the following is the correct relationship of cloud services to customers?
- (i) One-many.
- (ii) One-one.
- (iii) Many-one.
- (iv) Many-many.
Correct Answer: (i) One-many. (A single multi-tenant cloud environment provides service to many separate customers).
Question (h): Which of the following is the most important use of cloud computing?
- (i) Data storage.
- (ii) Data privacy.
- (iii) Reliability.
- (iv) All of the given options.
Correct Answer: (iv) All of the given options.
Question (i): What is a common security concern related to multi-tenancy in cloud computing?
- (i) Insufficient processing power.
- (ii) Lack of internet connectivity.
- (iii) Data segregation.
- (iv) Limited scalability.
Correct Answer: (iii) Data segregation.
Question (j): What is the name of a security attack, where an attacker intercepts and alters communication between two parties in a cloud environment?
- (i) Brute force attack.
- (ii) Man-in-the-Middle (MitM) attack.
- (iii) Drive-by attacks.
- (iv) Eavesdropping attack.
Correct Answer: (ii) Man-in-the-Middle (MitM) attack.
B.Tech 8th Semester Exam, 2022 & Special Exam 2022 (Code: 100817)
(Note: Both the regular and special 2022 exams utilized short-answer questions. Many questions overlap with the 2023 Special Exam provided above, but here are the answers to the unique ones).
Question: What is syntactic transparency?
Answer: Syntactic transparency means that a service or system interface hides the underlying structural differences (such as different programming languages or data formats) from the user or developer, allowing disparate systems to communicate as if they used the same syntax.
Question: Briefly discuss about the concept of virtual machine.
Answer: A virtual machine (VM) is a software-based emulation of a physical computer. It runs its own operating system and applications as if it were an independent physical machine, but it shares the hardware resources (CPU, RAM, Storage) of the host computer managed by a hypervisor.
Question: What is public cloud?
Answer: A public cloud is a deployment model where cloud computing resources (like servers and storage) are owned and operated by a third-party service provider and delivered over the public internet to multiple organizations.
Question: Differentiate between elasticity and scalability in cloud computing.
Answer: Scalability is the planned capacity to handle an increasing workload by adding resources over time (usually permanently). Elasticity is the automated, real-time ability to scale resources both up and down immediately in response to sudden, short-term spikes and drops in demand.
Question: Give two examples of PaaS model.
Answer: Google App Engine and Microsoft Azure (specifically Azure App Services).
Question: How is a cloud different from hosted IT services?
Answer: Hosted IT services typically involve a fixed infrastructure dedicated to a single customer with a flat billing rate. Cloud computing involves multi-tenant, virtualized infrastructure that is highly scalable and billed on a pay-as-you-go, utility model.
Question: Write a short note on full virtualization.
Answer: Full virtualization completely simulates the underlying hardware, allowing an unmodified guest operating system to run in complete isolation. The guest OS is unaware that it is running in a virtualized environment.
Question: What is data center in cloud computing?
Answer: A data center is a physical facility that organizations use to house their critical applications and data. In cloud computing, providers operate massive data centers filled with networked servers and storage systems to deliver virtualized resources to users over the internet.