Ccent/ccna Icnd1 Chapter 7

Front 1

broadcast domain

Back 1

a set of all devices that receive boradcast frames orginting from any device within the set - like devices in same vlan

Front 2

broadcast frame

Back 2

an ethernet frame sent to detination address FFFF.FFF.FFF meaning frame should be delivered to all hosts on that LAN

Front 3

collision domain

Back 3

set of NICs for which frame sent by on e NIC could collide with frame from other NIC

Front 4

cut-through switching

Back 4

internal processing method on some Cisco LAN switches in which frame is forwarded as soon as possible before whole frame is received

Front 5

flooding

Back 5

result of LAN switch forwarding process for broadcasts and unknown unicast frames - switches forward these frames out all interfaces - except one it arrived from - switches forward multicasts as well (be default, can be configured)

Front 6

fragment-free switching

Back 6

inter process of some Cisco switches - start forwarding after 64th byte - in collision fragments should not occur (following CSMA/CD logic)

Front 7

microsegmentation

Back 7

every switch port connects to a single device creating a separate collision domain per interface

Front 8

segmentation

Back 8

process of breaking a large piece of data from an app into pieces appropriate in size to be sent through network

Front 9

spanning tree protocol

Back 9

bridge protocol using spanning tree algorithm, alows switch to dynamically work around loops in a network topolgy be creating a spanning tree. Switches exchagne bridge protocol data unit messages with other bridges to detect loops and then remove the loops by shutting down selected bridge interfaces

Front 10

store and forward switching

Back 10

process option for Cisco switches that forwards frame only after entire frame is received

Front 11

unknown unicast frame

Back 11

frame where destination MAC is not in address table and so switch must flood frame

Front 12

virtual lan

Back 12

group of devices connected to one or more switches with devices grouped in single broadcast domain through switch configuration.

Front 13

[701] What are the two modes of operation on Cisco IOS devices?

Back 13

[701] User exec and enable (enable is also called privileged)

Front 14

[702] What are the three methods of logging in to a Cisco router? What about a Cisco switch?

Back 14

[702] Console, terminal, and auxillary. Switches don't have aux.

Front 15

[703] What command would you use to set the password for telnet logins?

Back 15

[703] line vty 0 4

Front 16

[704] How do you turn off enhanced editing mode?

Back 16

[704] terminal no editing

Front 17

[705] What does the configure terminal command do?

Back 17

[705] Enter configuration mode, where you can make changes to the running-config

Front 18

[706] What is the purpose of RAM?

Back 18

[706] Working storage - the running-config is stored in RAM.

Front 19

[707] What is the purpose of ROM?

Back 19

[707] ROM holds the bootstrap code and a default IOS used for troubleshooting/testing.

Front 20

[708] What is the purpose of NVRAM?

Back 20

[708] NVRAM holds the startup-config

Front 21

[709] What is the purpose of Flash memory?

Back 21

[709] Flash memory holds the full IOS software

Front 22

[710] What command would you use to update the IOS software from a tftp server?

Back 22

[710] copy tftp flash

Front 23

[711] How can you ensure that the running-config and startup-config are identical?

Back 23

[711] reload

Front 24

[712] What is the older version of the show running-config command?

Back 24

[712] write term

Front 25

[713] What is the older version of the show startup-config command?

Back 25

[713] show config

Front 26

[714] What are the limited IOS images stored in ROM called?

Back 26

[714] rxboot and ROMMON

Front 27

[715] What is the IOS boot sequence?

Back 27

[715] 1. Router performs POST 2. The router loads and runs bootstrap code from ROM 3. Router finds the IOS or other software and loads it 4. Router finds the configuration file and loads it into running config

Front 28

[716] How can you tell a router which IOS version to load at boot?

Back 28

[716] Either by setting the configuration register or by issuing the boot system command

Front 29

[717] If the configuration register is set to 0 which IOS is loaded? If it's set to 1? 2?

Back 29

[717] 0 - ROMMON, 1 - RXBOOT, 2 - Full featured IOS

Front 30

[718] What parameters will the boot system command accept?

Back 30

[718] ROM, flash, flash filename, tftp filename address

Front 31

[719] What two types of operating systems does Cisco include on its switches?

Back 31

[719] IOS (Internetwork Operating System) and CAT OS (Catalyst Operating System)