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Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model? Explanation:At the transport layer, a host computer will de-encapsulate a segment to reassemble data to an acceptable format by the application layer protocol of the TCP/IP model.
Which PDU format is used when bits are received from the network medium by the NIC of a host?
Which PDU format is used when bits are received from the network medium by the NIC of a host? Explanation:When received at the physical layer of a host, the bits are formatted into a frame at the data link layer. A packet is the PDU at the network layer. A segment is the PDU at the transport layer.
Which characteristic describes the default gateway of a host computer?
Explanation:The default gateway is the IP address of an interface on the router on the same network as the sending host.
What three application layer protocols are part?
Explanation:DNS, DHCP, and FTP are all application layer protocols in the TCP/IP protocol suite.
Which of the following are layers in the TCP IP model choose three?
Answers Explanation & Hints:
The application layer of the TCP/IP model maps to the top three layers of the OSI model, which are the application, presentation, and session layers.
data encapsulation & de-encapsulation – PDU
30 related questions found
What is TCP IP layers?
The TCP/IP model consists of five layers: the application layer, transport layer, network layer, data link layer and physical layer. … TCP/IP is a hierarchical protocol made up of interactive modules, and each of them provides specific functionality.
Is UDP an IP?
User Datagram Protocol (UDP) is a communications protocol that is primarily used to establish low-latency and loss-tolerating connections between applications on the internet. … Both UDP and TCP run on top of IP and are sometimes referred to as UDP/IP or TCP/IP. However, there are important differences between the two.
What is the oldest application layer protocol?
- DHCP Dynamic Host Configuration Protocol – enables devices to obtain IP addresses, subnet masks, gateways, DNS server information, etc. …
- Telnet Developed in the early 1970’s – among the oldest of the application layer protocols and services in the TCP/IP protocol suite. …
What is the difference between application layer and Transport Layer?
Transport is the act of moving data between two end points (think the “TCP” in TCP/IP). The application layer is the application that makes use of that transport (think HTTP or FTP, for example).
What type of communication will send a message to all devices on a local network?
What type of communication will send a message to all devices on a local area network? Explanation:Broadcast communication is a one-to-all communication.
What is the host part of an IP address?
Host Part. This is the part of the IP address that you assign to each host. It uniquely identifies this machine on your network. Note that for each host on your network, the network part of the address will be the same, but the host part must be different.
What is the IP address of the switch virtual?
If there are no DHCP servers available, the switch will use its factory default IP address which is 192.168. 1.254.
Which address does a NIC use?
A media access control address (MAC address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. This use is common in most IEEE 802 networking technologies, including Ethernet, Wi-Fi, and Bluetooth.
What type of network traffic requires QoS?
Explanation:Video conferencing utilizes real-time audio and video communications. Both of these are time-sensitive and bandwidth-intensive forms of communication that require quality of service to be active on the network. QoS will ensure an uninterrupted user experience.
Which PDU format is used at the data link layer?
Protocol data units for the Internet protocol suite are: The transport layer PDU is the TCP segment for TCP, and the datagram for UDP. The Internet layer PDU is the packet. The link layer PDU is the frame.
What happens in application layer?
The application layer is used by end-user software such as web browsers and email clients. It provides protocols that allow software to send and receive information and present meaningful data to users.
Which layer is responsible for the accuracy of data transmission?
The data link layer is further divided into two sublayers: The Logical Link Control (LLC) sublayer is responsible for flow controls and error controls that ensure error-free and accurate data transmission between the network nodes.
What happens at application layer?
Application layer interface directly interacts with the application and provides common web application services. The application layer also makes a request to the presentation layer. Application layer is the highest level of open systems, providing services directly for the application process.
What is the main function of session layer?
The session layer (layer 5) is responsible for establishing, managing, synchronizing and terminating sessions between end-user application processes. It works as a dialog controller. It allows the systems to communicate in either half-duplex or full-duplex mode of communication.
What is TCP and UDP?
TCP is a connection-oriented communication protocol. UDP is a connectionless communication protocol. TCP data units are known as packets. … UDP is designed for faster data transmission. TCP guarantees data delivery by prioritizing data integrity, completeness, and reliability.
What is session Protocol?
Session control protocol (SCP) is a method of creating multiple light-duty connections from a single TCP (Transmission Control Protocol) connection. … TCP is a set of rules used along with the Internet Protocol (IP) to send data in the form of message units between computers over the Internet.
Where is UDP used?
UDP is commonly used for applications that are “lossy” (can handle some packet loss), such as streaming audio and video. It is also used for query-response applications, such as DNS queries.
What are the advantages of UDP?
What is the main advantage of UDP? Explanation: As UDP does not provide assurance of delivery of packet, reliability and other services, the overhead taken to provide these services is reduced in UDP’s operation. Thus, UDP provides low overhead, and higher speed.
Is UDP secure?
The big security problem with UDP is that you are susceptible to spoofing and DOS attacks. It’s not possible to spoof an address across the internet using TCP since the handshake will never complete. OTOH with UDP there is no implicit handshake – any session maintenance must be done by your code (processing overhead).