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In OSI model, which of the following layer provides error-free delivery ofdata?
In the OSI model, the Transport layer (Layer 4) is responsible for the error-free delivery of data. This layer ensures that data is delivered across the network fully and correctly, managing error detection and correction as necessary.
In the OSI model, the Transport layer (Layer 4) is responsible for the error-free delivery of data. This layer ensures that data is delivered across the network fully and correctly, managing error detection and correction as necessary.
See lessWhich of the following network access standard is used for connectingstations to a circuit-switched network?
The network access standard used for connecting stations to a circuit-switched network is ISDN (Integrated Services Digital Network). ISDN allows the integration of both analog voice data and digital data over a standard telephone line, thus permitting users to connect to a circuit-switched network.
The network access standard used for connecting stations to a circuit-switched network is ISDN (Integrated Services Digital Network). ISDN allows the integration of both analog voice data and digital data over a standard telephone line, thus permitting users to connect to a circuit-switched network.
See lessWhich file transfer protocol uses UDP?
The file transfer protocol that uses UDP is TFTP (Trivial File Transfer Protocol).
The file transfer protocol that uses UDP is TFTP (Trivial File Transfer Protocol).
See lessWhat operates in the Data Link and the Network layer?
In the OSI model, which is a conceptual framework used to understand network interactions, different protocols and functionalities operate at various layers. Specifically: 1. Data Link Layer (Layer 2): This layer is responsible for node-to-node data transfer between two directly connected nodes. ItRead more
In the OSI model, which is a conceptual framework used to understand network interactions, different protocols and functionalities operate at various layers. Specifically:
1. Data Link Layer (Layer 2): This layer is responsible for node-to-node data transfer between two directly connected nodes. It also handles error correction from the physical layer. The most notable protocols and components that operate at this layer include Ethernet, Frame Relay, and the Point-to-Point Protocol (PPP). Additionally, switches and bridges operate at this layer, using MAC addresses to forward data to the correct destination.
2. Network Layer (Layer 3): This layer is responsible for packet forwarding including routing through intermediate routers. It is where routing takes place, allowing data to navigate across multiple networks. The Internet Protocol (IP) is the most significant protocol at this layer. Routers operate at the network layer, using IP addresses to direct the packets to their destination.
So, devices and protocols that “operate in the Data Link and the Network layer” include:
– Routers: These operate primarily at the Network layer (Layer 3), but they can also perform some operations that relate to the Data Link layer (Layer 2), especially in routing packets to the correct outgoing interface based on IP addresses.
– Protocols: While most protocols are specific to one layer, some aspects of their operation or related protocols can cross layer boundaries. For instance, ARP (Address Resolution Protocol) helps in resolving the network layer addresses (IP
See lessThe main difference between TCP and UDP is
The main difference between TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) lies in how they transfer data between devices over the internet. 1. Reliability: TCP is a connection-oriented protocol, ensuring that data packets are delivered accurately and in order. It establishes aRead more
The main difference between TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) lies in how they transfer data between devices over the internet.
1. Reliability: TCP is a connection-oriented protocol, ensuring that data packets are delivered accurately and in order. It establishes a connection before transmitting data and ensures that all packets are received and in the correct order. If packets are lost or arrive out of order, TCP will retransmit them and ensure they are correctly ordered, making it reliable. UDP, on the other hand, is connectionless and does not guarantee packet delivery, order, or error correction. This makes UDP faster but less reliable than TCP.
2. Speed: Because UDP lacks the overhead of establishing a connection, confirming packet delivery, and ensuring order, it is generally faster than TCP. This makes UDP suitable for time-sensitive applications where the occasional loss of packets is less detrimental than delays, such as live audio or video streaming.
3. Use Cases: Given these differences, TCP is used in scenarios where reliability and order are critical, such as web browsing (HTTP/HTTPS), email (SMTP, IMAP/POP), and file transfers (FTP), where the delivery of complete and accurate data is important. UDP is used in applications where speed and efficiency are more critical than perfect delivery, such as streaming services (video, audio), online gaming, and some broadcasting applications, where users prefer quick delivery over data integrity.
4. Flow and Congestion Control:
See lessWhich of the following is a MAC address?
A MAC address is a 48-bit hexadecimal number used to uniquely identify network interfaces for communications on the physical network segment. It is used in networking hardware like Ethernet cards for identifying devices on a local network. Specifically, a MAC address appears in the format of six paiRead more
A MAC address is a 48-bit hexadecimal number used to uniquely identify network interfaces for communications on the physical network segment. It is used in networking hardware like Ethernet cards for identifying devices on a local network. Specifically, a MAC address appears in the format of six pairs of hexadecimal digits, often separated by colons or hyphens.
For example:
– XX:XX:XX:XX:XX:XX
– XX-XX-XX-XX-XX-XX
where each “XX” is a placeholder for a hexadecimal digit (ranging from 00 to FF).
Given this explanation, please provide the options you have in mind, and I can identify which one is a MAC address for you.
See lessWhich of these is a feature of hubs?
A feature of hubs is that they operate at the physical layer (Layer 1) of the OSI model, which means they broadcast all incoming network traffic to every port except the originating port, without examining or processing the data packets. Hubs do not differentiate between devices on the network and dRead more
A feature of hubs is that they operate at the physical layer (Layer 1) of the OSI model, which means they broadcast all incoming network traffic to every port except the originating port, without examining or processing the data packets. Hubs do not differentiate between devices on the network and do not manage traffic based on network addresses or routes.
See lessPure ALOHA has a maximum throughput of ———
Pure ALOHA has a maximum throughput of 18.4%
Pure ALOHA has a maximum throughput of 18.4%
See lessWhich Layer is Responsible for Congestion Control?
The layer responsible for congestion control, particularly in the context of the Internet protocol suite (TCP/IP), is the Transport Layer. The Transport Layer, with protocols such as TCP (Transmission Control Protocol), plays a crucial role in managing congestion control mechanisms to avoid networkRead more
The layer responsible for congestion control, particularly in the context of the Internet protocol suite (TCP/IP), is the Transport Layer. The Transport Layer, with protocols such as TCP (Transmission Control Protocol), plays a crucial role in managing congestion control mechanisms to avoid network congestion by adjusting the rate at which data is sent.
See lessWhich Layer is Responsible for Congestion Control?
The Transport Layer is responsible for congestion control.
The Transport Layer is responsible for congestion control.
See less