Specific questions from iLab Scenario 1 Discuss how changing the type of antennas affects the amount of signal spilling outside the building? What are your recommendations? The problem that arises from changing an antenna is that the outer lying areas of the network can lose their signal. One solution to this problem is to lower the antenna output power via the controls of the access point. However if that presents the same problem with loss of signal there are alternatives such as WiFi blocking wallpaper (Strange) or paints that will block the WiFi signal from leaving the building (Jowitt).
It is recovered on the receiving end by the same pseudorandom sequence and is known as de-spreading. The importance of this type of transmission is that it is less susceptible to interference, and can recover scrambled transmissions using advanced statistical techniques eliminating the need to retransmit the
You might also have noticed that some light bounces off of the glass instead of passing through it – this is because no glass is perfectly transparent to light. Can you use this information to help explain why when it’s dark outside but bright inside (you’ve got the light on) you can see your reflection in the window? 4. The usual method of drawing a light ray is to mark two dots on the path of the light-ray, then remove the ray-box and complete the line. The problem is that the ray itself may actually be a little wide, so it is important that each of the dots is in the middle of the ray; if one is in the middle and the second is a little to one side, the resulting line will not be an accurate representation of the original light ray.
Use of trays for fiber optic installation: Cables in ducts and trays are not subjected to tensile forces. But for vertical runs, this must be carefully designed to minimize the tensile force applied to the vertical run fiber cables. Long vertical runs must be clamped at intermediate points to prevent excessive tensile loading on the fiber cable. The clamping force should be applied over as long a length of the fiber optic cable as practical. One major consideration when planning cable duct and trays is the bending radius, the bends must have smooth curves.
Role in Information Technology Security Domains and Auditing Compliance Framework 1: First NIST’s 800-53 is a good starting point. It addresses Federal Information Security Management. however it may not completely meet the needs of the Defence Spectrum Organization in regards to wireless communications security. This framework is well known and can be used by external entities to determine possible weaknesses in the framework. Framework 2: ISO/IEC 27002 Is also an improvement on the framework in that they are not public and an organization must pay for the use of the copyrighted framework.
9. A disadvantage of the token-ring system is that if an error changes the token pattern, it can cause the token to stop circulating. This can be eliminated by adding a…: D. Token-ring hub. 11. What is the difference between a hub and a switch?
Networking 337 Exam 1 Cards What are properties of WANs? connects backbone networks and MANS. The _________ layer performs error checking which is redundant with the function of the _________ layer. transport, data link Which is a function of the transport layer? breaking long messages into several smaller messages The primary reason for networking standards is to: ensure that hardware and software produced by different vendors can work together ___________ refers to the spreading of the signal that different parts of the signal arrive at different times at the destination.
The Kruskal-Wallis test, on the other hand, does not require the assumption of a normal distribution and the data must be on an ordinal scale. This is typically a better option if all the assumptions of ANOVA cannot be met. The scenario provides three examples of how these testing methods can be applied to real world situations. During the first phase of the scenario I chose to apply the Kruskal-Wallis test because all the assumptions of ANOVA could not be met. After analyzing the data, it was apparent that the level of competency of the software engineers was correlated with their productivity.
Should fiber optic horizontal cabling be installed but not terminated as future proofing for a future higher-speed network? What is the cost difference between copper UTP cable and fiber optic cable? Use this model to compute the relative cost—http://www.fols.org/cost_model/. (10 points) No, whenever using any type of fiber optic cable, it needs to be terminated. The termination provides connection from the cable to a patch panel.
See signal-to-noise ratio. Fundamental physical limits such as the shot noise in components limits the resolution of analogue signals. In digital electronics additional precision is obtained by using additional digits to represent the signal; the practical limit in the number of digits is determined by the performance of the analogue-to-digital converter (ADC), since digital operations can usually be performed without loss of precision. The ADC takes an analogue signal and changes into a series of binary numbers. The ADC may be used in simple digital display devices e. g. thermometers, light meters but it may also be used in digital sound recording and in data acquisition.