Cables And Connectors Flashcards
(19 cards)
What determines the appropriate media type for a network?
Physical topology, logical topology, bandwidth requirements, and physical connectors.
Choice of media type affects NICs, network speed, and capability.
What are the three types of network media?
- Copper cable
- Fiber-optic cable
- Wireless
Each type transmits signals in different forms: electrical pulses, light patterns, and microwave transmissions.
Define bandwidth in the context of network media.
The capacity of a medium to carry data, measuring the amount of data flow over time.
Digital bandwidth is crucial for network performance.
Which factors determine the practical bandwidth of a network?
- Network Infrastructure & Medium
- Latency & Propagation Delay
- Network Congestion & Traffic Load
- Protocol Overhead
- Hardware & Software Limitations
- Service Provider & Network Policies
These factors impact the efficiency and speed of data transmission.
What is throughput?
The actual, measured bandwidth at a specific time and conditions.
Throughput can be significantly less than maximum bandwidth due to various factors.
List factors that affect throughput.
- Amount of traffic
- Type of traffic
- Internetworking devices
- Type of data being transferred
- Network topology
- Number of users on the network
- User computer
- Server computer
- Latency from network devices
Throughput is crucial for understanding real network performance.
What should be avoided when routing network cables?
- High traffic areas
- Loose cables
- Hazardous areas
- Running cables through the same conduit as electrical lines
These practices help maintain network reliability and safety.
What is electromagnetic interference (EMI)?
Interference caused by electromagnetic fields affecting signal quality.
EMI can degrade performance in copper cables but not in fiber-optic cables.
What are the advantages of using fiber-optic cable?
- Long-distance installation
- Large bandwidth capacity
- Immunity to EMI and RFI
- Better security due to difficulty in tapping
Fiber optics are increasingly essential in modern networking.
What are the disadvantages of using fiber-optic cable?
- High cost of purchase and installation
- Requires appropriate conduit for outdoor use
- Must match cable type to application
- Strict installation guidelines for certification
These factors can limit fiber-optic deployment in some scenarios.
What is the maximum cable length for coaxial cable?
500 meters.
Coaxial cable can handle longer distances compared to twisted pair cables.
What is the maximum cable length for shielded twisted pair (STP) cables?
100 meters.
STP cables are designed to minimize interference, but their length is limited.
What are the categories of UTP/STP cabling?
- Category 1
- Category 2
- Category 3
- Category 4
- Category 5
- Category 5e
- Category 6
- Category 7
Each category supports different speeds and applications.
What is the purpose of an RJ-45 connector?
To connect UTP cables in networking applications.
RJ connectors are standardized for various networking types.
What is the primary function of fiber-optic cables?
To transmit light pulses over long distances with minimal signal loss.
Fiber optics are essential for high-speed data transmission.
What are the two main types of fiber-optic cables?
- Single-mode Fiber
- Multimode Fiber
Each type is suited for different transmission distances and applications.
What is the significance of the TIA-568 standard?
It outlines telecommunications cabling standards for voice, video, and data networks.
Compliance with these standards ensures compatibility and reliability.
What does the abbreviation EMI stand for?
Electromagnetic Interference.
EMI can disrupt network signals, especially in copper cabling.
Fill in the blank: The _______ is the actual measured bandwidth at a specific time.
Throughput
