Chapter 7 - Sheet1 Flashcards Preview

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Flashcards in Chapter 7 - Sheet1 Deck (82)
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1
Q

CLI

A

Command-line interface. An interface that enables the user to interact with the operating system by entering commands and optional arguments.

2
Q

Cisco Catalyst 2960: Syst LED

A

Overall system status

3
Q

Cisco Catalyst 2960: RPS LED

A

Suggests the status of the redundant power supply

4
Q

Cisco Catalyst 2960: STAT LED

A

If green (on), implies that each port LED implies that port’s status

5
Q

Cisco Catalyst 2960: DUPLX LED

A

If green (on), each port LED implies that port’s duplex (on/green is full; off means half) status

6
Q

Cisco Catalyst 2960: SPEED LED

A

If green (on), implies that each port LED implies that port’s speed

7
Q

Cisco Catalyst 2960: MODE LED

A

Cylces the meaning of the LEDs through three states (stat, duplx, speed)

8
Q

Cisco Catalyst 2960: Port LEDs

A

The LED has different meanings dpending on the port mode as toggled using the mode button

9
Q

Cisco Catalyst 2960: Display options of the Syst LED

A

Off - Switch is not powered on / On, green - switch is on and operational / On, amber - Switch is on but not functioning properly

10
Q

Action to take if Cisco Catalyst 2960 Syst LED is amber

A

Switch the switch off and on again

11
Q

Cisco Catalyst 2960: Display options for port LEDs when mode is STAT

A

Off: link is not working or switch is off / solid green: link is working, there is no traffic / flashing green: link is working and traffic is pasing over the interface / flashing amber: port is blocked by spanning tree

12
Q

Cisco Catalyst 2960: Display options for port LEDs when mode is SPEED

A

off means 10mbps, solid greens means 100mbps and flashing green means 1gbps

13
Q

3 ways to access a switch CLI

A

Console (direct connectio nto the switch, via USB, serial, etc), Telnet, and secure shell (SSH)

14
Q

3 ways to connect a console to a switch

A

PC’s serial port to SW’s RJ45 port via a rollover cable; PC’s USB port to SW’s USB port via USB cable; PC’s usb port to USB-to-console-cable-converter via USB cable. Converter to SW’s RJ-45 port via rollover cable

15
Q

Default console port settings on a switch:

A

9600 bits/second, no hardware flow control, and 8N1 (8 bit ASCII, no parity bits, 1 stop bit)

16
Q

Requirements before one can use telnet / ssh to manage a switch

A

switch must have an IP address and network between client and server (PC running telnet client and switch running telnet server) must be online.

17
Q

By default, Cisco switches only enable one type of connection to itself

A

Consol connections. Telnet/SSH are disabled.

18
Q

Command to configure password “faith” for console access

A

line console 0 / login / password faith

19
Q

Command to configure password “love” for all telnet access for all 16 concurrent Telnet sessions

A

line vty 0 15 / login / password love

20
Q

user Mode

A

A mode of the user interface to a router or switch in which the user can type only nondisruptive EXEC commands, generally just to look at the current status, but not to change any operational settings.

21
Q

user mode aka

A

user EXEC mode

22
Q

Enable Mode

A

A part of the Cisco IOS CLI in which the user can use the most powerful and potentially disruptive commands on a router or switch, including the ability to then reach configuration mode and reconfigure the router.

23
Q

Command to switch from user mode to enable mode

A

“enable” – you may need to enter a password

24
Q

command to restart the switch

A

“reload” – you will need to be in enable mode

25
Q

EXEC Commands

A

Commands that can be used in use mode or enable mode

26
Q

Command for: list all commands that start with “com”

A

com?

27
Q

Command for: Get help for the command “Command”

A

command?

28
Q

Command for: Get help for the command paramater “Command param1”

A

command param1?

29
Q

Command for: Get a list of all the parameters and their functions after the first parameter in the “Command” command

A

Command param1 ?

30
Q

Command for: List all commands available in this mode

A

?

31
Q

Command for: Previous command

A

Up arrow or Ctrl+P

32
Q

Command for: Next command

A

Down arrow or Ctrl+N

33
Q

Command for: move the cursor back to edit the command

A

Left arrow or Ctrl+B

34
Q

Command for: move the cursor to the right to edit the command

A

Right arrow or Ctrl+F

35
Q

Command for: “home” equivalent – move the cursor to the front of the command

A

Ctrl+A

36
Q

Command for: “end” equivalent – move the cursor to the end of the command

A

Ctrl+E

37
Q

Command for: Interrupt the current command

A

Ctrl+Shift+6

38
Q

Command: “Show”

A

Lists the currently known facts about the switch’s operational status. Has many optiosn to specify what specifically to show the user

39
Q

Command: “Debug”

A

Monitors different processes of the switch and sends ongoing messages to the user when events occur

40
Q

“Show” command vs “Debug” command

A

Show tells the user what’s happening at a point in time (point statement) and a debug command shows what’s true over time. Debug requires more CPU cycles.

41
Q

While the Show command only displays info for the current user, the debug command

A

Creates log messages, viewable to any user to uses the “terminal monitor” command from enable mode

42
Q

Command for: check the CPU utilization

A

Show Process

43
Q

Configuration Mode

A

Allows for commands that tell the switch the details of what to do and how to do it.

44
Q

Command to enter configuration mode

A

configure terminal

45
Q

Command to leave configuration mode to enable mode

A

“end” key or Ctrl+Z

46
Q

List the four common switch configuration modes

A

Global, Line, Interface, VLAN

47
Q

After using the “configure terminal” command, enter command to enter Global configuration mode

A

None. This is the mode you’re in as soon as you enter configuration mode

48
Q

After using the “configure terminal” command, enter command to enter Line configuration submode

A

line console 0 (where 0 is the first serial port) or line vty 0 15 (where 0 is the first concurrent session and 15 is the 16th)

49
Q

After using the “configure terminal” command, enter command to enter Interface configuration submode

A

“interface x” where x is the interface number

50
Q

After using the “configure terminal” command, enter command to enter VLAN configuration submode

A

“vlan x” where x is the vlan number.

51
Q

What does the prompt look like when you’re configuring a line?

A

hostname(config-line)#

52
Q

What does the prompt look like when you’re configuring an interface?

A

hostname(config-if)#

53
Q

What does the prompt look like when you’re configuring a VLAN

A

hostname(vlan)#

54
Q

What does the prompt look like when you’re in configuration mode?

A

hostname(config)#

55
Q

If you’re in a configuration submode, what command gets you back to the global configuration mode?

A

exit

56
Q

If you’re in the global configuration mode, what command gets you back to the enable mode?

A

End or Ctrl+Z

57
Q

List the four types of memory found in a Cisco switch

A

RAM (AKA DRAM), ROM, Flash Memory, NVRAM

58
Q

In a Cisco switch, RAM is used for -

A

(Dynamic) Random Access Memory. Used by the switch for working storage, just as any PC would use it. Running (active) configuration file is stored here.

59
Q

In a Cisco switch, ROM is used for -

A

Read-only memory. Stores a boostrap/boothelper program that is loaded when switch powers on. The program finds the full Cisco IOS image and manages process of loading Cisco IOS into RAM.

60
Q

In a Cisco switch, Flash memory is used for -

A

Stores functional Cisco IOS images. Default location where switch gets Cisco IOS at boot time. Can also store backup copies of configuration files

61
Q

In a Cisco switch, NVRAM is used for -

A

Nonvolatile RAM. Stores initial or startup config file that is used when switch is first powered on and when the switch is reloaded.

62
Q

Name the two Cisco IOS Configuration Files

A

Startup Config, Running Config

63
Q

Startup Config

A

The initial configuration used anytime the switch reloads Cisco IOS. Stored in NVRAM.

64
Q

Running Config

A

Currently used configuration commands. Changes dynamically when someine enters commands in config mode.

65
Q

What do you have to do to make changes to the startup config?

A

Change the running config in configuration mode, then save the changes to NVRAM, saving over the startup config.

66
Q

Where is the startup config stored?

A

NVRAM

67
Q

Where is the running config stored?

A

RAM

68
Q

Command to display the running config

A

show running-config

69
Q

Command to display the startup config

A

show startup-config

70
Q

Command to override the startup config with the running config

A

copy running-config startup-config

71
Q

Command to move the startup config to a TFTP server

A

copy startup-config tftp

72
Q

Command to move a config on a TFTP server to the startup config

A

copy tftp startup-config

73
Q

Command to move the config on a TFTP server to the running config

A

copy tftp running-config

74
Q

How does a copy into RAM – therefore overwriting the running config – (from TFTP or NVRAM) work?

A

As if the commands in the config were entered from the running config’s stop point, effectively merging the running config and the config you’ve copied.

75
Q

Three commands to erase the NVRAM

A

write erase, erase startup-config, erase nvram

76
Q

Result of erasing the NVRAM

A

startup config goes away. Reloading the switch will leave the switch with no config

77
Q

Recommended command to erase the NVRAM

A

erase nvram

78
Q

Two methods to set up an initial, basic configuration

A

Configuration Mode, setup mode

79
Q

Setup Mode

A

An option on Cisco IOS switches and routers that prompts the user for basic configuration information, resulting in new running-config and startup-config files.

80
Q

Official term for setup mode

A

initial configuration dialogue

81
Q

Six things that result from the “show version” command

A

IOS version, time since last load of the IOS, reason for last load of the IOS, number of fast ethernet interfaces, number of gigabit ethernet interfaces, switch model number

82
Q

Q: See diagram

A