Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an EIGRP neighbor adjacency. What action should be taken to solve this problem? Configure both routers with the same EIGRP process
In effect, we have application-level multiprogramming within a single process. While this multiprogramming can result in a significant speedup of the application, there are applications that would benefit from the ability to execute portions of code simultaneously. 4.8 Define jacketing. The purpose of jacketing is to convert a blocking system call into a non-blocking system call. For example, instead of directly calling a system I/O routine, a thread calls an application-level I/O jacket routine.
This supports that the unconscious semantic processing of words on an unattended channel was intruding upon a task of naming ink colours. Introduction Theories suggest that attentional processes operate on an unconscious and automatic level. Schneider and Shiffrin (1977, as cited in Edgar, 2007) believed that some mental process cannot be consciously controlled and used the term automatic processes to describe this. They termed the mental process whereby we exert conscious control; controlled processes. [these require focused attention?]
| |Encoding |Converting data from one form to another form | |Half-Duplex |Is communication back and forth between two devices. Devices can send a receive data| | |but only one can transmit | |Full Duplex |Is communication that can flow both ways at the same time back and forth
1. Complete the table below with descriptions of at least two different features of a telephone system and how / when they would be used. Feature | How / when used | Answer phone | This allows you to leave a message for callers when you are unavailable giving them a time frame that you will respond the message they leave. It allows the caller to leave a concise message detailing who they are, why they have called and contact details. | Automated attendant (AA) / Interactive Voice response (IVR) | Is the system where there is an automated menu so that the calls can be directed to the correct extensions without the intervention of a person.
It does not guarantee data integrity and discard packets when there is network congestion. In reality, it still delivers data with high reliability. Frame relay uses DLCI in order to communicate frames from one side of the network to the other, the DLCI should be unique for each path on the network, so that when a frame is sent to a certain location and the DCLI is attached it can be sent to the correct recipient. The DLC looks like the
Lab 2.1 Exercise 2.1.1 Media - the physical structure from which the signal transmits. Interface - how the computer accesses the media. Signal – how information is transmitted. Pattern – an established format for the signals to be interpreted by the computing device. Timing – synchronization between devices that are communicating so that they each know when the patterns start and end.
2.Symbolic approach: Also known as intelligent code system it assigns code in a manner that the same item is not allotted two different codes and also a code ,because of its design, can be used to tell many things about an item. The system uses either a numeric codification system or an alphanumeric or mnemonic system. Under the numeric system, a set of numeric code (length pre-decided) is assigned to each item where different parts of the code describe, of an item : Class Subclass unique running number of that item Location of
To start I would like to throw some light on some key words in the question, digital technology is a type of transfer that involves breaking a message or forms of communication between two machines down into binary codes, which consist of ones and zeros and can be reassembled upon been read by another piece of equipment that utilizes digital technology (Telecom. hellodirect.com, 2015). That is, digital technology uses digital codes to transmit signals and information between different devices, different from the older types of technology that uses other forms of information transfer and could not move data as quickly, for example the analogue devices in which information is transmitted by modulating a continuous transmission signal such as amplifying a signal’s strength or varying its frequency to add or take away data. (Bebopedia, 2015) In digital technology information is translated into binary format, where each bit is representative of two distinct amplitudes while analog technology translates information into electric pulses of varying amplitude. Despite these differences both technologies shear some common characteristics,
In the diagram a sine wave is sampled and quantized for PCM. The sine wave is sampled at regular intervals, shown as ticks on the x-axis. For, each sample, one of the available values is chosen by some algorithm. This produces fully discrete representation of the input signal that can be easily encoded as digital data for storage or manipulation. Next, in 1943 Bell Telephone Laboratories developed the first digital scrambled speech transmission, SIGSALY.