Question Tag: Data Transmission

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  • 10 Marks

MI – May 2016 – L1 – SB – Q6a – Information System Development and Security

Define and explain key terms related to information systems, including data transmission, data warehouse, and error detection.

Define the term:

i. “Data Transmission”. (2 Marks)

ii. “Data warehouse”. (2 Marks)

iii. Explain the term “Error Detection” in relation to data transmission and list four error detection algorithms. (6 Marks)

i. Data Transmission:

Data transmission is the process of sending and receiving data or information from one point to another through a communication channel such as a wired or wireless medium.

ii. Data Warehouse:

A data warehouse is a centralized repository for storing large volumes of structured and organized data, typically used for analysis and reporting purposes.

iii. Error Detection:

Error detection refers to the process of identifying errors in data transmission to ensure that the data received is accurate and free from corruption. It is crucial in maintaining data integrity during communication.

Error Detection Algorithms:

    1. Parity Check
    2. Checksum
    3. Cyclic Redundancy Check (CRC)
    4. Hamming Code
  • 8 Marks

MI – May 2016 – L1 – SB – Q5a – Computer Hardware, Software, and Data Life Cycle

Define computer network and protocol, and state four properties of protocols in data transmission.

Define the term:

i. “Computer Network”.
(2 Marks)

ii. “Protocol” in relation to data transmission and state FOUR of its properties.
(6 Marks)

i. Definition of “Computer Network”:

A Computer Network is a collection of interconnected computers and devices that communicate with each other to share resources, such as data, files, and hardware devices like printers and internet connections. These networks can be established using wired or wireless communication technologies.

ii. Definition of “Protocol” in relation to data transmission:

A Protocol is a set of rules and conventions that define how data is transmitted and received over a network. Protocols ensure that devices on a network can communicate with each other effectively by specifying how data is formatted, transmitted, and processed.

Properties of Protocols:

  1. Error Detection and Correction: Protocols include mechanisms to identify and correct errors that occur during data transmission to ensure the integrity of the data.
  2. Data Formatting: Protocols define the structure and format of data to ensure that it is correctly interpreted by both the sender and receiver.
  3. Flow Control: Protocols manage the rate of data transmission between devices to prevent congestion and ensure smooth data flow.
  4. Addressing and Routing: Protocols provide unique identifiers for devices on the network and determine the best path for data to travel from the source to the destination.
  • 1 Marks

MI – May 2016 – L1 – SA – Q16 – Electronic Business and E-Commerce

Identify the correct term that describes the use of computer systems to handle data.

Information Technology (IT) describes the application of computer systems and ________ to store, retrieve, transmit, and manipulate data.

A. Telecommunication Equipment
B. Telecommunication Media
C. Transmission Signets
D. Synchronous Transmission
E. Telecommunication Software

Answer: A

Explanation:
Telecommunication equipment refers to hardware used to transmit, receive, and process data across communication channels. It supports the functioning of IT systems in storing, retrieving, transmitting, and manipulating data effectively.

  • 1 Marks

MI – May 2015 – L1 – SA – Q20 – Computer Hardware, Software, and Data Life Cycle

Identify the data transmission phenomenon with a clock signal.

Data transmission phenomenon where data is transferred regularly with clock signal is called
A. Asynchronous data transfer
B. Simplex data transfer
C. Duplex data transfer
D. Synchronous data transfer
E. Regular data transfer

Answer:
D. Synchronous data transfer

Explanation:
In synchronous data transfer, data is sent at regular intervals that are coordinated by a clock signal, ensuring synchronized communication between sender and receiver.

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