CCNA 1 Chapter 7

Networking technology defined by IEEE 802 standards.

Layer responsible for node-to-node data transfer.

Identifies network layer protocol in Ethernet frames.

Handles data encapsulation and media access control.

Process of wrapping data in an Ethernet frame.

Structure containing source and destination MAC addresses.

Trailer used for error detection in Ethernet frames.

Simultaneous data transmission in both directions.

Data transmission in one direction at a time.

Carrier Sense Multiple Access with Collision Detection.

Frame less than 64 bytes, automatically discarded.

Frames larger than 1500 bytes, supported by switches.

48-bit address for device identification in LAN.

12 hexadecimal digits represent a MAC address.

24-bit code identifying device manufacturers.

NIC checks destination MAC before forwarding frames.

Unique address for single device communication.

Address for frames sent to all devices in LAN.

Maps IPv4 addresses to MAC addresses.

Maps IPv6 addresses to MAC addresses.

Common Ethernet frame format used in networks.

Tool for capturing and analyzing network traffic.

Network Interface Card for Ethernet communication.

Specifications for Ethernet communications over media.

Minimum 64 bytes, maximum 1518 bytes.

Not included in Ethernet frame size calculation.

Invalid frames discarded due to size or collisions.

Packet sent to all devices in a network.

FF-FF-FF-FF-FF-FF for broadcasts.

Sending packets to all switch ports except incoming.

Broadcasts are not forwarded by routers.

Contains all ones in host portion.

Local network segment receiving broadcast packets.

Received by devices in the same multicast group.

01-00-5E for IPv4, 33-33 for IPv6.

Switch feature to manage multicast traffic.

Single device address used as source.

Stores MAC addresses for forwarding decisions.

Another term for MAC address table.

Switch learns addresses from incoming frames.

Default 5 minutes for MAC address entries.

Frame forwarded to all ports if unknown.

Switch forwards frames based on MAC address table.

Receives entire frame, checks CRC before forwarding.

Forwards frame after reading destination address.

Error-checking method for data integrity.

Reduced by discarding error frames.

Hands-on setup and analysis of MAC addresses.

Lab objective to view MAC addresses.

Based solely on Layer 2 MAC addresses.

Repeats bits out all ports, unlike switches.

Filled by examining source MAC addresses.

Checks frames for new source MAC addresses.

Techniques used by switches to handle data.

A variant of cut-through switching that immediately forwards a packet after reading the destination address.

Stores and performs an error check on the first 64 bytes of the frame before forwarding.

Technique to store frames before forwarding when destination port is busy.

Buffering method resulting in larger frames transmitted with fewer dropped frames.

Settings that determine how data is transmitted, including full and half duplex.

Function enabling devices to negotiate best speed and duplex automatically.

Performance issue when one port is half-duplex and the other full-duplex.

Feature that detects cable type and configures interfaces automatically.

Components of an Ethernet frame: preamble, dest MAC, src MAC, EtherType, data, FCS.

48-bit address using 12 hexadecimal digits for device identification.

Type of communication in Ethernet using a unique MAC address to send data to one device.

Type of communication using a broadcast MAC address to send data to all devices.

Type of communication using a multicast MAC address to send data to a group of devices.

Memory buffering method where each port has dedicated memory for frames.

24-bit identifier assigned to organizations for MAC addresses.

Protocol mapping IP addresses to MAC addresses in LAN.

Protocol in IPv6 networks for discovering nodes and their link-layer addresses.