CIS330 Test 3 SA
Describe the two different shapes and polishes of SMF ferrules to reduce back reflection
-APC: Curved surface but ends are placed at an angle to reflect signal loss in a different direction -UPC: Rounded surface allows for better connections with older connectors
What is the difference between single-mode fiber and multi-mode fiber and how do they compare?
-Single Mode Fiber: narrow core where light travels only a single path and is very fast. -Multimode fiber: Wider core where multiple light pulses bounce at difference angles.
Radiation patterns can be used to classify antennas into what two basic categories?
-Unidirectional antenna: issues wireless signals along a single direction. -Omnidirectional antenna: issues and receives wireless signals with equal strength and clarify in all directions.
When deciding antenna types, why might the use of an omnidirectional antenna be inadvisable?
-Unidirectional antenna: issues wireless signals along a single direction. -Omnidirectional antenna: issues and receives wireless signals with equal strength and clarify in all directions. -Omnidirectional antennas are not advisable because omnidirectional antennas receives and issues signals with equal strength.
What is a fiber distribution panel and how is it used?
A fiber distribution panel is used to terminate the fiber optic cable and provide connection to the cable's internal fibers. They provide a secure environment for exposed fibers.
What is the hidden node problem and how can it be mitigated?
A hidden node problem is where a node is not visible to other nodes in the coverage area and can be solved by reserve the medium for one node's use.
What is the difference between bandwidth and throughput?
Bandwidth is the theoretical amount of data that can be transmitted, and throughput is the average amount of data transmitted.
Why should the WPS pin feature be avoided if possible?
Can be hacked through brute force attack.
How does configuration of wireless clients for wireless access in a enterprise environment differ from normal setup?
Configuration for wireless clients requires the users to install an agent to access the network(on-boarding) and then the agent must be removed after(off-boarding)
Noise can degrade or distort a signal on a network. What are some of its causes?
Electro-magnetic interferences and cross talk can mess with signals.
What are some of the different types of wireless topologies that can be created?
Mesh, ad-hoc, and infrastructure (DON'T say star, bus, or tree)
What is the biggest limiting factor on fiber optic cable length?
The maximum limit has mostly to do with optical loss where the light signal degrades.
Why should an access point not always utilize all the power it has for broadcasting wireless signals?
To help avoid collisions
