Basicont Prefinal Exam '09

A record is indeed one complete set of fields. In a database or spreadsheet, a record represents a single entity or item, and it contains all the relevant information about that entity in the form of fields. These fields can include attributes such as name, age, address, and so on. Therefore, the statement "Record is one complete set of fields" is true because a record encompasses all the necessary data for a specific entity.

Printing pay cheques and updating the payroll register are indeed example transactions of a computer-based payroll system. In a computer-based payroll system, pay cheques are generated and printed using software that calculates the wages and deductions for each employee. The payroll register is then updated to record the payment details and maintain accurate records of employee salaries, taxes, and other deductions. These tasks are efficiently and accurately performed by computer-based systems, making them essential components of payroll management.

A bus network relies on nodes being located along a common line to efficiently transmit data or communicate. If the nodes are scattered and not linearly aligned, it can lead to longer transmission distances and increased latency. This can result in poor performance and reduced effectiveness of the bus network. Therefore, the statement that a bus network may not work well if the nodes are located at scattered points that do not lie near a common line is true.

A Database Management System (DBMS) is a computer program that enables users to manipulate information from a database. It provides tools and functions to store, organize, retrieve, and manage data efficiently. Users can perform tasks such as adding, modifying, and deleting data, as well as querying and generating reports. DBMS ensures data integrity, security, and consistency. It serves as an interface between users and the database, allowing them to interact with data easily and effectively.

An expert system is a computer program that utilizes a knowledge base of human expertise to solve problems. It is designed to mimic the decision-making abilities of a human expert in a specific domain. By using the knowledge base, an expert system can analyze data, provide recommendations, and make decisions. It is commonly used in areas such as medicine, engineering, and finance, where there is a need for specialized knowledge and problem-solving skills.

Centralized Data Processing refers to a process where all data processing operations and calculations are carried out by a central computer. In this approach, the central computer handles all the data processing tasks, while other devices or terminals connected to the central computer mainly serve as input/output devices. This allows for a more efficient and controlled data processing system, as all the processing power and resources are concentrated in one central location.

A simplex channel is a communication channel where the direction of transmission is unchanging. In this type of channel, information can only flow in one direction, from the sender to the receiver. It does not allow for two-way communication or simultaneous transmission in both directions. This type of channel is commonly used in broadcast systems, where information is transmitted from a central source to multiple receivers.

Leo Beranek, Robert Newman, and Richard Bolt are responsible for opening Telnet, the first commercial version of the ARPANET.

Communication is the correct answer because it refers to the process of exchanging information or messages between two or more parties. In the context of networking, communication involves the transmission and reception of data between devices or systems. It is through communication that meaning is given to the received messages, allowing for effective understanding and interpretation of the information being exchanged.

Mesh Network Topology involves the concept of routes, wherein a message sent on the network can take any of several possible paths by "hopping" from node to node until the destination is reached. In a mesh network, each node is connected to every other node, creating a highly redundant and fault-tolerant network. This topology is commonly used in wireless networks where devices can communicate directly with each other without the need for a central access point. It allows for efficient and reliable communication as messages can be rerouted if a node or path fails.

An information system is a system that combines computer hardware, software, people, procedures, and data to provide data processing capabilities for a business or organization. It is a comprehensive system that manages and processes information to support decision-making, operations, and other activities within the organization. This system plays a crucial role in collecting, storing, analyzing, and disseminating information to facilitate efficient and effective business operations.

In 1991, the World Wide Web was introduced by Tim Berners-Lee, making it the birth year of the internet as we know it today. This marked a significant milestone in the history of technology and communication, as it revolutionized the way information is accessed and shared globally. The creation of the World Wide Web laid the foundation for the modern internet and its subsequent advancements, making 1991 the correct answer for the birth of the World Wide Web.

Broadcast networks are a type of transmission technology that allows information to be sent from one source to multiple destinations simultaneously. In broadcast networks, there is a single channel through which all the connected machines receive the transmitted data. This is different from point-to-point networks where each pair of machines has its own dedicated connection. Therefore, the given statement is false as broadcast networks do not consist of many connections to individual pairs of machines.

A database is a collection of related information that is organized in a way that allows for easy access, management, and updating. Unlike a file or record, a database provides a structured and organized approach to storing and retrieving data. It allows for efficient storage, retrieval, and manipulation of large amounts of data, making it a valuable tool for businesses and organizations.

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The correct answer is 2 and 3 because these options describe the capabilities of an Integrated Information System. Option 2 states that Database Management System software is used to integrate data and information flow through an organization, indicating the system's ability to manage and streamline data within an organization. Option 3 states that the system shares a common set of database files, highlighting its capability to centralize and share data across different functions or departments.

The capabilities of Information Systems include input, feedback, and communication. Input refers to the ability to enter data into the system, feedback allows for the system to provide information or responses to users, and communication enables the exchange of information between different users or systems. Therefore, the correct answer is 1 and 2, as they both represent capabilities of Information Systems.

The statement is incorrect. A transmitter is not a pathway over which information can be transferred. Rather, a transmitter is a device or equipment that is used to send information or signals to a receiver through a medium such as air or cables. It converts the information into a suitable form for transmission and then sends it over the medium. Therefore, the correct answer is False.

Executive Information Systems (EIS) is a tool that provides direct on-line access to relevant information in a useful and navigable format. EIS is specifically designed to support the decision-making needs of top-level executives in an organization. It provides a user-friendly interface that allows executives to access and analyze data from various sources, such as internal databases and external sources. EIS helps executives monitor key performance indicators, track trends, and make informed decisions quickly and efficiently. It is a valuable tool for executives who need real-time information to support their strategic decision-making process.

Function-based Integrated Systems are designed to support a specific application area exclusively, which is stated in option 1. This means that the system is tailored to meet the specific needs and requirements of that particular application area. Additionally, option 4 states that if one database file is updated, the others easily become different. This implies that there is a lack of synchronization or consistency among the database files, which can lead to data inconsistencies and potential issues with data integrity. Therefore, the correct answer is 1 and 4 only.