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State three forms of data transmission characteristic and explain each of them?
Parallel transmission is when multiple wires connect each sub-unit and data is exchanged simultaneously on separate lines. Serial transmission is when the bits of data are transmitted one after another. Asynchronous transmission is when only one character at a time or one byte at a time is sent.
Which three protocols describe methods that can be used to secure user data for transmission across the internet?
*ipsec*ssl*https
What is often meant by the term 'data transmission'?
A transfer of data from point-to-point is simplified as data transmission. Data transmission can be referred to as digital communication but can include analog data transmission as well.
Explain different methods of identifying project data?
Stakeholder interviews: Engaging with project stakeholders to gather information on project data needs. Data inventory: Documenting and categorizing all available data sources related to the project. Data analysis: Using analytical tools and techniques to extract relevant data from various sources. Data mapping: Creating visual representations of data flows, relationships, and dependencies within the project.
Explain data model?
Explain data model?
What transmission is data sent in a constant stream of frames?
synchronous transmission. In a asynchronous transmission, data is sent as individual data bytes
Explain briefly why surveys are conducted?
Survey is a type of statistical method of collecting data. This is very important in the field of psychology. Sampling, census etc. are some other methods of collecting data.
Is a transmission method that allows one node to send data to a defined group of nodes?
Multicasting is a transmission method that allows one node to send data to a defined group of nodes. Transmission methods using fiber-optic cables achieve faster throughput than those using copper or wireless connections.
What does gprs mean in full?
GPRS stands for General Packet Radio Service. It is a mobile data standard that provides wireless communication for data transmission in GSM networks, enabling services such as internet access, multimedia messaging, and other data applications. GPRS allows for packet-switched data transmission, which is more efficient than traditional circuit-switched methods.
What are the methods in collect data?
There are five different methods in collecting data. The methods in data collect are registration, questionnaires, interviews, direct observations, and reporting.
What are the two methods of checking the integrity of data?
Two common methods for checking the integrity of data are checksums and hash functions. Checksums involve calculating a small, fixed-size value from a larger set of data, which can be used to verify that the data has not changed. Hash functions generate a unique fixed-size string (hash) for a given input, allowing for quick comparisons to detect any alterations. Both methods help ensure that data remains accurate and uncorrupted during storage or transmission.
Explain difference between serial and data transmission using diagrams?
You can collect data in many different forms. Data : is abstract inputs like letters , digits, names, etc., and has no meaning, but information is the data after being arranged, processed and adjusted , and it becomes meaningful and useful.
