Business Data Communication and Networks test bank Essays

2. Enterprise networks typically use LAN _____ at each site to connect devices using some type of media.

• “Data Link -Whenever two or more nodes share the same physical medium (for example, several computers plugged

System extension used to make an association between two different PC systems or to gap one system into two. LAN switch-gives a focal association between two or more PCs on a system.

A computer network set up around an individual person in one building. i.e. in a house or a small office

Packets also known as frames are grouped amounts of data that are sent across a network. However, packets differ from frames in that a packet contains that data to be sent, including the source and destination Internet Protocol (IP) addresses. A frame is packet that contains the data, the source and destination IP addresses, Media Access Control (MAC) source and destination addresses, and error checking. The MAC addresses are added at the beginning of the data also known as a header. An error checking code is also added to the end of the data which is referred to as a trailer. After the packet has been “framed”, the frame is then sent over the networking medium (i.e. Ethernet cable).

It is very important in business that individuals have lucrative methods of communication in order to convey important messages, and use these methods in order to interact with other businesses and the public. Methods of communication can also be commonly used to advertise and market, for example via the use of social networks which advertise to a wide range of individual, to through written posters which can be placed up in shop advertisements and on notice boards alike.

15. MC: A(n) _____ is a description of the rules computers must follow to facilitate device identification and data transfer.

2. Within the IP packet header, what is the value in the upper layer protocol field?

2. The data overhead as it adds headers at each layer as the datagram moves down the stack. Thus part of bandwidth is used for the protocol headers instead of message/data.

Data communications refers to the transmission or conveyance of the data between two or more computers with the selection of a medium through which it is transmitted.The physical connection between networked computing devices is set up using a cable media or wireless media.For example an electronic mail send to another person in a different location.

We will be deploying a basic network with two Autonomous Systems using GNS3. The reason for choosing a basic network is because the main function will be to analyze the BGP packets captured through Wireshark and we will use the same design to explain route degradation. We will also be adding an IPsec tunnel between the nodes. Adding another node will make it complex to explain. Graphical design of security solutions will be analyzed using GNS3. The security risk mitigation methods that will be analyzed are Route filtering and IPsec. This will be Implemented using GNS3 and the packet capturing will be done by Wireshark. An in-depth analysis of both the security solutions will be provided. Also, a detailed report on the comparison of the two will be provided.

1. sender has an idea 2. Sender encodes the idea in a message 3. message travels over a channel 4. Receiver decodes the message 5. feedback travels to the sender

Visit several restaurants that offer local and intercontinental cuisines to understand how the local people prepare food and serve guests. Food is also an important aspect of culture.

Switch- forwards a fram it receives directly out the port associated with its destination address

Analog data in electrical form can be transmitted as ________ signals easily and cheaply with voice transmission over voice grade lines.