Block 3 Unit 1

Switches are _____ based and utilize _____ to help them make filtering decisions.

Hardware and ASICs

Switches move frames of information at the _____ Layer of the OSI model.

Data Link

What is the difference between a hub and switch?

Hubs transmit messages out of every interface other than the one it was received on, and switches break up a network into collision domains.

What allows direct local access to configure a switch using a terminal, or a computer using terminal emulation software for initial configuration? DoD policy states this must be password protected to prevent unauthorized changes.

Console Port

What part of the switch is where end devices such as computers and printers are connected?

Network Interfaces or Switch ports

This is where the operating system is saved. Every time that the switch boots up, the flash memory will be accessed to load the OS into the running memory.

Flash Memory

What contains information such as the diagnostics and bootup routines? Cannot be accessed or changed.

ROM

What is the running memory that the switch uses for operations and changes to the current configuration is stored in the “running-configuration”?

RAM

What holds the startup-configuration, which is loaded to the RAM upon bootup and then becomes the running-config?

NVRAM

What establishes communication directly between two network devices without relying on any host or network system?

Point to Point(PPP)

What is a loop-prevention protocol that allows switches to communicate to prevent loops in a network and is defined by IEEE 802.1D ?

Spanning Tree Protocol(STP)

What occurs when traffic in one of two directions fail on a link?

Unidirectional Link Detection(UDLD)

What is the Vendor Neutral neighbor discovery protocol?

Link Layer Discovery Protocol(LLDP)

What cisco proprietary neighbor discovery protocol shares information of connected Cisco devices?

Cisco Discovery Protocol(CDP)

What are the two VLAN trunking methods for encapsulating frames?

IEEE 802.1q and ISL

What VLAN trunking method is non-proprietary?

IEEE 802.1q

__________ switches store the entire frame in internal memory and check the frame for errors before forwarding the frame to its destination.

Store and Foward

_________ switching reduces latency; however, bad frames are forwarded, and the destination will ultimately have to request the source send the frame again.

Cut Through

___________ Switching is a hybrid of Store-and-Forward and Cut-Through switching. It stores the first 64 bytes before forwarding.

Fragment Free

When two system transmissions occur at the same time, on shared bandwidth, the result is a ______.

Collision

A late collision indicates that another system attempted to transmit after a host has transmitted at least the ___ ______________

First 64byte of its frame