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What are the advantages and disadvantages of data compression?
hahaaha
Which layer manages data-format information for networked communications?
presentation layer
Which layer of osi model has the important role of providing error checking?
Data link Layer
What is The difference between compression and decoding?
Compression is the process of reducing the size of data by encoding it in a more efficient format, making it easier to store or transmit. This often involves removing redundancies or applying algorithms to minimize the amount of information needed to represent the original data. Decoding, on the other hand, is the process of converting compressed data back into its original format so that it can be understood or used. Essentially, compression is about minimizing data size, while decoding is about restoring it to its original state.
Explain the difference between a PDU and a datagram?
A PDU (Protocol Data Unit) is defined by which layer it is in. In the physical layer and network layer, it is synonymous with the packet, in the data link layer, it is the frame. In the transport layer, it is a datagram for UDP. A datagram holds one or more PDU's, as it is the basic unit of transferring information via packet switching.
Data compression mechanism in computer network?
presentation layer
What layer of the OSI model performs error correction?
Layer 2 - The Data Link Layer Layer 2 of the OSI model provides error-detection capability
At which OSI layer does data compression take places?
A network consists of multiple computers communicating with one another over a shared network medium. Topology refers to the shape of a network, or the network's layout. In this unit, you have learnt about the various topologies and its structure. The OSI model is a seven-layer model for communications and computer network protocol design. In this unit, you have learnt about the OSI model and the functions of the various layers.
According to the OSI model which layer performs parity checking and error checking?
Data Link layer does the parity error checking Thanks, Samaresh
What do you call a program that performs a specialized task such as a virus scanner a file compression program or a data backup program?
A program that performs a specialized task, such as a virus scanner, file compression program, or data backup program, is typically referred to as a "utility software." Utility software is designed to help manage, maintain, or protect computer resources and enhance system performance.
What osi layer encodes and converts user info into binary data?
The OSI layer that encodes and converts user information into binary data is the Presentation Layer, which is the sixth layer of the OSI model. This layer is responsible for data translation, encryption, and compression, ensuring that data is in a usable format for the application layer above it. It handles the syntax and semantics of the transmitted information, making it understandable for the receiving application.
What are the devices of presentation layer?
The presentation layer in the OSI model is responsible for translating, encrypting, and compressing data for the application layer. Key devices associated with this layer include gateways and protocol converters that facilitate communication between different data formats and protocols. Additionally, software applications that handle data formatting, such as video codecs and data compression tools, also operate at this layer, ensuring that data is presented in a usable form for users or applications.
What layer of the OSI model performs routing?
network layer
What are the three primary functions of the presentation layer?
Coding and conversion of Application layer data to ensure that data from the source device can be interpreted by the appropriate application on the destination device. Compression of the data in a manner that can be decompressed by the destination device. Encryption of the data for transmission and the decryption of data upon receipt by the destination.
What layer of the OSI model ensures that the information sent at the application layer of one system is readable by the application layer of another system?
The Presentation layer must make certain that the format of the data will be understandable by the Application layer. This includes the use of encryption, compression, different graphics formats, etc. It uses a technique known as Portable Data Representation that allows data from different hardware to be able to communicate.
Which layer handles the formatting of application data so that it will be readable by destination system?
The Presentation Layer of the OSI model handles the formatting of application data to ensure it is readable by the destination system. This layer is responsible for data translation, encryption, and compression, allowing different systems to understand the information being exchanged. It prepares data for the application layer and ensures that it adheres to the required formats for proper interpretation.
Detail in data compression tech?
Data compression techniques are used to reduce the size of files and data for efficient storage and transmission. Common methods include lossless compression, which preserves all data accurately, and lossy compression, which sacrifices some data to achieve higher compression rates. Examples of compression algorithms include ZIP for general purpose compression, JPEG for image compression, and MP3 for audio compression.
