Switch's interface carries traffic of multiple VLANs
What is static routing?
Administrator programs specific paths between nodes
What devices do we use to configure VLANs?
What is a VLAN?
Logically separate networks within networks Groups ports into broadcast domain
In STP what device acts as guide to set the best path between switches?
What identifies a VLANs data?
Frame contains VLAN identifier in header
What is the most popular expansion board type for a NIC? (PCI, PCIe, AGP, etc.)
PCI bus - 32- or 64-bit bus - Clock speeds rated at 33-, 66- or 133-MHz - Maximum data transfer rate: 1 Gbps - Introduced by Intel (1992) - Latest official version: 3.0 (2004)
What layer does a router operate at?
Network Layer 3
What layer does a hub operate at?
Physical layer 1
What layer does a bridge operate at?
Data Link layer 2
What IEEE standard does firewire use?
IEEE 1394 standard (1995)
Can either switching method determine if packets are corrupt?
• Switch reads entire data frame into memory - Checks for accuracy before transmitting information • Advantage over cut-through mode - Transmit data more accurately • Disadvantage over cut-through mode - More time consuming • Best use - Larger LAN environments; mixed environments - Can transfer data between segments running different transmission speeds
• Cannot detect corrupt packets - May propagate flawed packets • Advantage - Speed • Disadvantage - Data buffering (switch flooded with traffic) • Best use - Small workgroups needing speed - Low number of devices
What are the two switch modes we discussed in the power point and how do they differ in the way they handle packets?
Store-and-forward mode & cut through. Cut through is faster. Store-and -forward transmits data more accurately.
What is a switch and what does it do?
Subdivide network Smaller logical pieces, segments • Operate at layers 3 and 4 (advanced) • Interpret MAC address information
What is a transceiver and is a NIC one?
Connectivity device that sends and receives data.
What is a bridge?
Connects two network segments. Analyzes incoming frames and decide where to send. Based on frame's MAC address
What is a repeater and how does it differ from a hub?
Simplest connectivity device regenerating signals. One input port; one output port. Hub has multiple data ports.
What is a hub and how many ports does it have?
Connectivity device that repeats signal in broadcast fashion. Repeater with more than one output port.