30 Questions
What is the key advantage of Copper Cabling in networks?
Ease of installation
How does attenuation affect electrical signals in Copper Cabling?
Causes the signals to become weaker over longer distances
Which type of copper cable provides better noise protection than Unshielded Twisted-Pair (UTP)?
Shielded Twisted-Pair (STP)
How is Unshielded Twisted-Pair (UTP) cable terminated in networks?
With RJ-45 connectors
What characteristic of UTP helps protect the signal from interference?
Color-coded plastic insulation
What type of cable is Coaxial Cable?
Coaxial Cable
What is the destination MAC address for an encapsulated IPv6 multicast packet?
33-33
When are multicast packets forwarded by a router?
Only when the router is configured to route multicast packets
How do Layer 2 Ethernet switches make their forwarding decisions?
Exclusively based on Layer 2 MAC addresses
In what scenario would a Layer 2 Ethernet switch flood out all Ethernet switch ports except the incoming port?
When it receives a multicast packet
What type of address does a multicast IP address require to correspond to?
Multicast MAC address
Which device is only called by specific devices under it according to the text?
Switch
What is the main responsibility of the data link layer in the OSI model?
Preparing network data for the physical network
What are the two sublayers of the IEEE 802 LAN/MAN data link layer?
LLC and MAC
Which network topology focuses on the physical layout of devices?
Physical Topology
What type of communication allows devices to send and receive data simultaneously?
Full-duplex
Which access method is used in WLANs for contention-based networks?
CSMA/CA
What are the basic parts of a data link frame in networking?
Header, Data, and Trailer
What is the structure of an Ethernet MAC address?
6 hexadecimal vendor OUI code followed by a 6 hexadecimal vendor-assigned value
When decoding an Ethernet frame, what does a NIC check first?
Destination MAC address
In Ethernet, what type of MAC address is used for communication with a single destination device?
Unicast MAC address
What happens if the destination MAC address in an Ethernet frame does not match the physical MAC address in RAM?
The device discards the frame
Which devices will have an Ethernet NIC and therefore a MAC address?
Workstations, servers, printers, mobile devices, routers
Under what condition will an Ethernet NIC accept a frame that has a destination MAC address different from its own?
If the destination MAC address is a broadcast or multicast group of which the host is a member
What is the purpose of memory buffering on Ethernet switches?
To store frames before forwarding them
How does port-based memory buffering work on switches?
A frame is transmitted only when all queued frames ahead have been successfully transmitted
What is a potential drawback of port-based memory buffering if a destination port is busy?
A single frame can delay the transmission of all frames in memory
How does shared memory buffering differ from port-based memory buffering?
It has a common memory buffer shared by all switch ports
What advantage does shared memory buffering provide in terms of frame transmission?
It allows larger frames to be transmitted with fewer dropped frames
What are two of the most basic settings on a switch that are mentioned in the text?
Bandwidth ('speed') and duplex settings
Explore the characteristics, limitations, and mitigation of copper cabling commonly used in networks. Learn about factors like attenuation, interference, and crosstalk that affect signal quality and how to mitigate them.
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