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67 Cards in this Set
- Front
- Back
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What does the first number in an IP rating stand for? |
Protection against solids |
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What does the second number in an IP rating stand for? |
Protection against liquids |
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What does IP stand for? |
Ingress protection |
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What is the highest IP rating available? |
68 |
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What is simplex? |
One way transmission. |
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How many styles of duplex are there? |
Half and full |
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What does a half duplex system do? |
Can transmit and receive but not at the same time. |
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What does a full duplex do? |
Can transmit and receive at the same time. |
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What are the three media types for Ethernet transmission? |
Copper, fiber, and wireless. |
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Attenuation definition? |
Any loss of signal strength. |
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If there's too much attenuation and frequency, what needs to happen? |
Distance must be shortened. |
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What is attenuation a function of? |
Frequency and distance. |
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What is noise? |
Any unwanted signal that interferes with data transmission. |
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What is noise measured as? Equation |
Signal/Noise |
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What's the unit for noise? |
Decibel |
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If signal/noise equals 1, I'd that good or bad? |
Bad. |
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What are the two main causes of attenuation? |
Frequency and distance. |
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What's the method if encoding calls that sends serial data? |
ASCII |
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What's the difference between bit and baud rate? |
Bit is one's and zeros being sent, baud is groups of bits being sent. |
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Bit rate is what? |
1s and 0s being sent. |
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Baud rate is what? |
Groups of bits being sent. |
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Which has longer distance capabilities: RS232 or RS485? |
RS485 |
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What determines how fast data can be sent? |
How fast you can switch the signal on and off. |
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What are the two cake categories? |
Baseband and broadband. |
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Which cable category can send multiple signals at once? |
Broadband. |
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Is network the same as protocol? |
No. |
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What is a network? |
The hardware. |
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What is a protocol? |
The software. |
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Who is in charge of setting up communication? |
IT department. |
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What are the three key details in setting up communication? |
Physical connections, encoding, and protocol. |
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What are the two protocols used in industry? |
Ethernet IP and OPC/UA |
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What are two types of industry specific networks? |
Profibus and Modbus |
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What is security? |
Protects networks from unauthorized access. |
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What does "mission critical" mean? |
Means that it is extremely important. If a mission critical application fails, you are fully down. Has to be working for you to function. |
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What does environment mean? |
The surroundings in which a person or thing lives or operates. |
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What is a collision? |
When two or more data packages arrive at the same port at the same time. |
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In which system is collision an issue? |
Full duplex. Because multiple devices are transmitting, it might be to the same device. Data could arrive at same time. |
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What is prioritizing? |
Giving data levels of importance |
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What's a legacy device? |
An older device. |
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What does a gateway do? |
It interfaces between different network protocols. |
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What is implicit messaging sometimes known as? |
I/O messaging. |
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What us implicit messaging used for? |
Time sensitive applications. |
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What does implicit messaging do? |
Sends information at a given interval. |
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Which is faster, implicit or explicit messaging? |
Implicit messaging. |
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What is interoperability? |
It means that you can swap components between vendors flawlessly. |
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What does deterministic mean? |
It's a guarantee that data will get from A to B within a time limit. |
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What is latency? |
Amount of time a message takes to traverse a system. |
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What is jitter? |
Variation in latency between two systems. |
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What us a bridge? |
A network device that provides interconnection with other bridge networks that use the same protocol. |
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What is explicit messaging good for? |
Transfer of large volumes of data. |
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What can explicit messaging be thought as? |
A client/server relationship. |
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What does PoE stand for? |
Power over Ethernet |
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What dies implicit relate to? |
I/O updates |
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What does explicit relate to? |
Configuration. |
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What does WAN stand for? |
Wide area network. |
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What's an example of a WAN? |
The internet. |
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What does throughput mean? |
How much data can be shoved down a network in one second. |
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What does LAN stand for? |
Local area network |
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Are LANs and WANs intranets or Internets? |
LAN is an intranet, WAN is internet. |
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What does QoS stand for? |
Quality of service. |
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What does POE allow? |
Data and power to be transmitted over a single ethernet cord. |
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What does QoS do? |
Tries to manage data and accommodate higher priority traffic. |
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What's bandwidth? |
Ability of a medium to move useful data over time. |
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What is noise? |
Unwanted disturbance in the electrical signal. |
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What's protocol? |
How messages are formatted and delivered. |
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What are three parts of protocol? |
Error detection, data flow control, and message prioritization. |
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What is network redundancy? |
A method of ensuring network availability in case a device or path fails. |
