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Q1. Explain Knowledge based system? Explain DSS and OLAP with Example
Ans) KBS are the systems based on knowledge base. Knowledge base is the database maintained for knowledge management which provides the means of data collections, organization and retrieval of knowledge. The knowledge management manages the domain where it creates and enables organization for adoption of insights and experiences.

There are two types of knowledge bases.
a. Machine readable knowledge bases: The knowledge base helps the computer to process through. It makes the data in the computer readable code which makes the operator to perform easier. Such informations are used by semantic web. Semantic web is a web that will make a description of the system that a system can understand. b. Human readable knowledge bases: They are designed to help people to retrieve knowledge. The information need to be processed by the reader. The reader can access the information and synthesize their own. A decision support system (DSS) is a computer-based information system that supports business or organizational decision-making activities. DSSs serve the management, operations, and planning levels of an organization and help to make decisions, which may be rapidly changing and not easily specified in advance. DSSs include knowledge-based systems. A properly designed DSS is an interactive software-based system intended to help decision makers compile useful information from a combination of raw data, documents, personal knowledge, or business models to identify and solve problems and make decisions.

online analytical processing, or OLAP is an approach to swiftly answer multi-dimensional analytical queries. OLAP is part of the broader category of business intelligence, which also encompasses relational reporting and data mining. Typical applications of OLAP include business reporting for sales, marketing, management reporting, business process management (BPM), budgeting and forecasting, financial reporting and similar areas, with new applications coming up, such as agriculture. The term OLAP was created as a slight modification of the traditional database term OLTP (Online Transaction Processing). Q2. What do you understand by service level Agreements (SLAs)? Why are they needed? What is the role of CIO in drafting these? Explain the various security hazards faced by an IS?

Ans) A service level agreement is a part of a service contract where the level of service is formally defined. In practice, the term SLA is sometimes used to refer to the contracted delivery time (of the service) or performance. As an example, internet service providers will commonly include service level agreements within the terms of their contracts with customers to define the level(s) of service beings old in plain language terms (typically the (SLA) will in this case have a technical definition in terms of MTTF, MTTR, various data rates, etc.)A service level agreement (SLA) is a negotiated agreement between two parties where one is the customer and the other is the service provider. This can be a legally binding formal or informal "contract" (see internal department relationships). Contracts between the service provider and other third parties are often (incorrectly) called SLAs — as the level of service has been set by the (principal) customer, there can be no "agreement" between third parties (these agreements are simply a "contract"). Operating Level Agreements or OLA(s), however, may be used by internal groups to support SLA(s).The SLA records a common understanding about services, priorities, responsibilities, guarantees, and warranties. Each area of service scope should have the "level of service” defined. The SLA may specify the levels of availability, serviceability, performance, operation, or other attributes of the service, such as billing. The "level of service" can also be specified as "target" and "minimum," which allows customers to be informed what to expect (the...
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