MCA DCA8242 – CLOUD DB SYSTEM

Description

SESSION	March 2024
PROGRAM	Master of CoMPUTER APPLICATIONS (MCA)
SEMESTER	IV
course CODE & NAME	DCA8242 – CLOUD DB SYSTEMS
CREDITS	4

 

Set-Ist

 

1. a. Define Grid Computing. Explain how it works.

Ans: Grid Computing

 

Grid computing is the process of collecting or gathering resources from boundaries. Multiple computers in the network are engaged in solving a problem at a similar point in time, in a larger size. Generally, such computing power is required for technicality or scientific problems that require more processing cycles and enormous data access.

 

Distributed computing can be

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1. Elaborate the ACID Properties of Relational Database Transaction.

Ans: The ACID properties are a set of four essential characteristics that ensure the reliability and integrity of transactions in a relational database system. These properties are vital for maintaining data consistency and correctness, even in the presence of system failures or concurrent access by

 

 

2. a. Explain Full Replication and Partial Replication w.r.t distributed systems.

Ans:

Replication is making a copy of the relation. When a relation N is modified or replicated, a copy of relation N is stored in other sites. The copies may be kept at only a few selected sites, or each site may keep a copy. In case each site of the system has a copy of the relation, it is known as full replication.

Replication comes in helpful when you want to improve the accessibility of data. The most severe case would be to

3. a. Write a short note on Service Oriented Architecture

Ans: SOA (Service Oriented Architecture) cloud computing is cost-effective in some instances; it is not in many situations. The cost-effectiveness of cloud computing depends on the enterprise and domain. For example, a shared disk in storage as a service solution would be of high value for a virtual business

 

1. Write a short note on the Network File system

Ans: NFS is a remote access DFS introduced by Sun Microsystems in 1985. The currently used version is version 4. NFS integrates well into the Unix model of mount points but does not implement Unix semantics. NFS servers were stateless (i.e., NFS does not provide open and close operations)

 

 

 

 

Set-IInd

 

4. a. Explain the Set of Operations on WSDL with suitable code examples.

Ans: WSDL (Web Services Description Language) defines a set of operations that can be performed on a web service. These operations represent the methods or functions exposed by the service, allowing clients to interact with it.

 

The main operations defined in WSDL are: 

 

Input Message: Specifies the data that needs to be provided by the client when invoking the operation.

 

Output Message: Specifies the data returned by the service as a result of invoking the operation.

 

1. Identify the Types of Cloud Security Controls.

Ans: Here are the main types of cloud security controls: 

 

Preventive Controls: 

 

Access Control: Enforces authentication and authorization mechanisms to control user access to cloud resources and services.

 

Firewalls: Implement network-based firewalls to filter and monitor incoming and outgoing traffic to and from cloud environments.

 

 

5. a. Define a web browser. Explain about anyone in detail.

Ans: Before diving into the information retrieval methodology, let us understand the basics of web search. We are aware of the Web and the Internet. We are also mindful that we use web browsers to search for information in various media formats and retrieve the same. To search for anything on the Internet, the basic needs are:

• Mobile/tablet/computer/laptop.
• A web browser

 

1. Evaluate the features of Nirvanix.

Ans: Following are some of the key features of the Nirvanix cloud storage network:

 

• It is possible to monitor round the clock, and all the processes can be intimated to the IT support staff through e-mail and SMS alerts.

 

• Automatic monitoring helps to detect any intrusion immediately.

 

• SSL in cloud

 

 

6.a. Represent any two Methods of Secure Data Transmission.

Ans: Two common methods for secure data transmission are using Transport Layer Security (TLS) and Virtual Private Networks (VPNs).

 

1. Transport Layer Security (TLS): TLS is a cryptographic protocol that ensures secure communication over a network, such as the internet. It operates at the transport layer of the OSI model and provides encryption, authentication,

 

 

1. Compare and contrast Private cloud vs. public cloud.

Ans: Private and public clouds are two different deployment models for cloud computing, each offering distinct advantages and considerations.

 

Here’s a comparison between private and public clouds:

 

Private Cloud: Ownership and Control:  Private Cloud: Owned and operated by a single organization, providing complete control