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The 802.5 standard implements a way for preventing collisions on thenetwork. How are collisions prevented when using this standard?
The 802.5 standard refers to a networking standard developed by the IEEE, known as Token Ring. Collisions are prevented in networks using the 802.5 standard through a token-passing mechanism. In a Token Ring network, a special data packet called a "token" circulates around the network. A device on tRead more
The 802.5 standard refers to a networking standard developed by the IEEE, known as Token Ring. Collisions are prevented in networks using the 802.5 standard through a token-passing mechanism. In a Token Ring network, a special data packet called a “token” circulates around the network. A device on the network can only send data when it has possession of the token. This ensures that only one device can transmit at a time, effectively preventing data collisions. Once a device captures the token, it can send its data packets and then releases the token back into the ring for the next device to use. This methodical passing of the token controls network access and prevents the data packets from colliding, differing fundamentally from the collision detection method used in Ethernet networks.
See lessARP (Address Resolution Protocol) is
Address Resolution Protocol (ARP) is a network protocol used to find the MAC (Media Access Control) address of a recipient within the local network segment. When a device wants to communicate with another device on a local area network (LAN), it needs to have the target device's MAC address to sendRead more
Address Resolution Protocol (ARP) is a network protocol used to find the MAC (Media Access Control) address of a recipient within the local network segment. When a device wants to communicate with another device on a local area network (LAN), it needs to have the target device’s MAC address to send frames across the network. If the sender only knows the IP address of the target device, it uses ARP to map that IP address to its corresponding MAC address. Here’s how ARP works:
1. The sending device broadcasts an ARP request packet to all devices on the local network, asking for the MAC address associated with a specific IP address.
2. All devices on the local network receive the ARP request, but only the device with the matching IP address responds.
3. The device with the matching IP address sends an ARP reply packet back to the requester, providing its MAC address.
4. The sender, now knowing the MAC address of the target device, can send the packet directly to that device.
ARP operates mainly on IPv4 networks, and its functionality is crucial for the normal operation of local area networks. For IPv6 networks, a similar function is performed by the Neighbor Discovery Protocol (NDP).
See lessCSMA (Carrier Sense Multiple Access) is
Carrier Sense Multiple Access (CSMA) is a network protocol that is used to enhance the use of a shared communication channel. It is primarily used in a setting where multiple network nodes are attempting to access the same channel (such as a single frequency or a cable), but where only one node shouRead more
Carrier Sense Multiple Access (CSMA) is a network protocol that is used to enhance the use of a shared communication channel. It is primarily used in a setting where multiple network nodes are attempting to access the same channel (such as a single frequency or a cable), but where only one node should ideally be transmitting at any given time to avoid collisions of data.
The fundamental principle behind CSMA is that a network device first listens to the network to check if another device is transmitting data. If the channel is found to be busy, the device will wait for a random period of time before checking again. If the channel is found to be free, the device will proceed to transmit its data. This method significantly reduces the chances of collision because it is unlikely that two devices will listen, find the channel free, and decide to transmit at exactly the same time.
There are several variations of CSMA, including:
1. 1-Persistent CSMA: In this approach, a device will continuously sense the channel and transmit immediately when the channel becomes free. If a collision occurs, it will wait for a random time before trying again. This method has a higher chance of collision but is simpler and can be more efficient in networks with low traffic.
2. Non-Persistent CSMA: A device using a non-persistent strategy will wait for a random period before sensing the channel again if it finds the channel busy. This reduces the chance of collision but can introduce longer delays.
3. **P-P
See lessWhat is the first octet range for a class A IP address?
The first octet range for a Class A IP address is 1 to 126.
The first octet range for a Class A IP address is 1 to 126.
See lessIn 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 less