Voice over Internet Protocol

UML 91.561 Computer & Network Security I HomeWork 1 Name – Nrupen Abnave Student ID -01382247 1.1 (a) Describe the major structure of a TCP packet and explain the main functions of the TCP headers. - TCP is a transport layer protocol and is connection oriented. Its reliable connection, has error checking and flow control. TCP Headers: 32bits Source and Destination Ports – Each 16bit number. Indicate which application is using the communicating stream. Used by most common…

While ubiquitous Internet access is extremely convenient and enables marvelous new applications for mobile users, it also creates a major security vulnerability—by placing a passive receiver in the vicinity of the wireless transmitter, that receiver can obtain a copy of every packet that is transmitted! These packets can contain all kinds of sensitive information, including passwords, social security numbers, trade secrets, and private personal messages. A passive receiver that records a copy of…

There are many technical requirements. One requirement is to have a internet connection. The environmental requirements are power source, operating latitude and an operating system platform. Table 4: Technical Requirements of HWD (Weng M. , 2016) Environment Temperature: -4° to 113°F Operating altitude: less than 30,000 feet Compatibility Iso Android Windows Sync Method Bluetooth 4.0 or 4.1 Bluetooth Low Energy 2.7 Leading Healthcare Wearable Device Brands Wearable continues to develop…

3. Results and discussion 3.1. Grafting of CNT on the ramie fabric The schematic representation for the mechanism of ramie fiber surface treatments is shown in Fig. 2. For the alkali treatment of ramie fiber, the NaOH reacts with the hydroxyl groups of the ramie fiber as shown in Fig. 2(a). During silane treatment, the hydrolysis of silane takes place initially (Fig. 2(b)) which then reacts with the active hydroxyl functionalities in ramie fiber (Fig. 2(c)). Each silane molecule has three…

can be processed. The congested routers can discard queued packets to make room for those that are arriving. 4. This layer divide the data into segments and also ensures that data must be received in the same sequence in which it was sent. The protocols that are used are TCP and UDP. The data link layer is responsible for encapsulation of packets into frames and then transferring them to the physical layer. It is also responsible for flow control and addressing. 5. A three-way handshake is…

support and enable. The northbound API is not standardized and often allows fine-grained control of switches. Applications should and do not need to process details of the southbound interface, such as details about the network topology [14]. OpenFlow protocol provides an interface that allows a control software to program switches in the network. Basically, the controller can change the forwarding behaviour of a switch by altering the forwarding table. This is where network programming…

1. What file transfer protocols would you recommend? Be prepared to support your recommendations. The Data Link Layer allows various protocols to transmit data between nodes in a network. This layer involves framing of data, synchronization of nodes and multiplexing of nodes. The Transfer Control Protocol (TCP) and High-Level Data Link Control (HDLC) ensure the reliability of data. They ensure that data transfers from one node to the other without any error. Moreover, the data is transferred…

the TCP/IP protocol suite. I will also be describing the type and functions of entities and the service they provide. A) The way communications are done between a computers on a network is through protocol suits. The most used protocol suite and commonly available protocol suite is TCP/IP protocol suite. A protocol suit contains a layered structural design where each layer represents some functionality which can be passed out by a protocol. Each layer usually contains more than one protocol…

Transmission Control Protocol/Internet Protocol (TCP/IP) are a suite of protocols designed for large-scale internetworks that span LAN and WAN environments. TCP/IP are communication protocols that are used to handle traffic on the internet and other networks. The two most important protocols are the Transmission Control Protocol (TCP) and the Internet Protocol (IP). These are today the standard networking protocols and were created from a synthesis of a number of earlier developments in the…

The transport layer encapsulates the application data with data unit. The transport layer protocol creates a virtual flow of data sent and received between the sending applications, divided by the transport port number. The port number identifies a port, a place dedicated to the memory to receive or send data presentation. The services layer protocol transport reliable delivery of the order data. The final result depends on TCP, SCTP, vs UDP handles the…