CNA 100 - Chapter 8 - Configuring Cisco Devices

Provide legal notification

(config)# banner motd "message "

Secure all passwords in the config file

(config)# service password-encryption

Configure a hostname

(config)#hostname R1

A __________________ is a specific parameter.

keyword

Basic IOS Command Structure - Ip protocols

keyword or argument

"copied from ROM to RAM - locates the IOS"

loading the Bootstrap

"operating system file for the router - loaded into RAM after Bootstrap finds the IOS file to be used"

loading the IOS

The _____________________ is used to select one of the port modes: status mode, duplex mode, speed mode.

mode button

The data transferred through a conceptually independent channel, which allows any data sent via that mechanism to be kept separate from in-band data is called __________________.

out of band

The command is ping and the user-defined argument is the ip-address of the destination device.

ping ip-address

The __________________ EXEC mode can be identified by the prompt ending with the # symbol.

privileged

Which Cisco IOS mode displays a prompt of Router#?

privileged EXEC mode

Basic IOS Command Structure - Switch

prompt

Enter configuration mode

router# conf t

access privileged exec mode

router> enable

Which command can be used to encrypt all passwords in the configuration file?

service password-encryption

Displays the contents of IPv4 routing table stored in RAM.

sho ip route

A network administrator is troubleshooting inter-connection issues between routers. Which "show" command can be used to check the bandwidth and MTU settings of an interface?

show interfaces

Displays statistics for all interfaces on the device.

show interfaces

Displays the IPv4 stats for all interfaces on a router.

show ip interface

What two commands can be used to verify interface configuration?

show ip interface brief show ip route

What is the purpose of assigning an IP address to the VLAN1 interface on a Cisco Layer 2 switch?

to enable remote access to the switch to manage it

"hardware check - performed by built-in ROM chip"

POST

A gigabit capable Ethernet SFP port can support __________________ and __________________ transceivers modules.

fiber (fiber optics) and copper (cat5/Rj-45)

The _______________________ is used to connect the switch to a PC by means of a RJ-45-to-DB-9- cable and for out-of-band management tasks.

Console port

A __________________ Ethernet port can only function at either 10 megabits per second (Mb/s), or at 100 Mb/s.

10/100

To access context-sensitive help, simply enter a __________________, at the CLI.

? (question mark)

Two console ports for the initial configuration and command-line interface (CLI) management access using a regular RJ-45 port and a new USB Type-B (mini-B USB) connector.

Console ports

A port to manage routers - using telephone lines and modems.

AUX port

Used for remote management of the router using a dial-up telephone line and modem.

AUX port

The __________________ is a text-based program that enables entering and executing Cisco IOS commands to configure, monitor, and maintain Cisco devices,

Cisco IOS command line interface (CLI)

Basic IOS Command Structure - Show/Ping

Command

Which configuration step should be performed first when enabling SSH on a Cisco device?

Configure an IP domain name.

Uses a low speed serial or USB connection to provide direct connect, out-of-band management access to a Cisco device

Console

A local port which uses USB or low-speed, serial connections to manage network devices.

Console port

Two expansion slots that provide modularity and flexibility by enabling the router to support different types of interface modules, including Serial, digital subscriber line (DSL), switch port, and wireless.

Enhanced high-speed WAN interface card (EHWIC) slots

The IOS facilitates the basic operation of the device's hardware components. The IOS image file is stored in flash memory.

IOS image file

Which two files are loaded into RAM of a Cisco switch when it is booted?

IOS image file Startup Configuration file

Used to configure a switch port or router network interface.

Interface Configuration Mode

Connects computers, switches, and routers for internal networking.

LAN interface

Two Gigabit Ethernet interfaces for LAN access.

LAN interfaces

Which two networking devices are used in enterprise network connectivity to end devices?

LAN switch wireless access point

Used to configure console, SSH, Telnet, or AUX access.

Line Configuration Mode

The Router Boot Process - Step 2

Load Bootstrap

The Router Boot Process - Step 4

Load Config file

The Router Boot Process - Step 3

Load the IOS

The Router Boot Process - Step 1

Perform POST

To execute configuration commands, a network administrator must access privileged EXEC mode. Higher configuration modes, like global configuration mode, can only be reached from privileged EXEC mode.

Privileged EXEC Mode

The RPS is in standby mode or in a fault condition.

RPS LED amber

The internal power supply in a switch has failed, the RPS is providing power to the switch.

RPS LED blinking amber

The RPS is connected but unavailable because its providing power to another device.

RPS LED blinking green

The RPS is connected and ready to provide back-up power, if required.

RPS LED green

Save the configuration

S1# copy running-config startup-config

Secure privileged EXEC mode

S1(config)# enable secret password

Configure the management SVI

S1(config)# interface vlan 1 S1(config-if)# ip address ip-address subnet-mask S1(config-if)# no shutdown

Secure user EXEC mode

S1(config)# line console 0 S1(config-line)# password cisco S1(config-line)# login

Secure remote Telnet / SSH access

S1(config)# line vty 0 15 S1(config-line)# password cisco S1(config-line)# login

Method for remotely accessing a CLI session across an active network interface.

SSH

Which two protocols can be used to access a Cisco switch for in-band management?

SSH and Telenet

The startup configuration file contains commands that are used to initially configure a router and create the running configuration file stored in RAM. The startup configuration file is stored in NVRAM. All configuration changes are stored in the running configuration file and are implemented immediately by the IOS.

Startup configuration file

Load the Configuration File from FLASH (NVRAM), a TFTP Server OR Go into Setup Mode to create a Configuration file.

Step 4 in the Router Boot Process

Step 1. Securely mount and ground the device chassis, or case. Step 2. Seat the external compact flash card. Step 3. Connect the power cable. Step 4. Configure the terminal emulation software on the PC and connect the PC to the console port. Step 5. Turn on the router. Step 6. Observe the startup messages on the PC as the router boots up.

Steps to power up a Cisco Router.

SYST LED amber

Switch POST failed. (On but not working properly)

SYST LED green

Switch is powered on and operational.

A way to remotely access the CLI across a network interface.

Telenet/SSH

While troubleshooting a network problem, a network administrator issues the show version command on a router. What information can be found by using this command?

The amount of NVRAM, DRAM, and flash memory installed on the router.

Operating systems (OS) Central processing units (CPU) Random-access memory (RAM) Read-only memory (ROM) Nonvolatile random-access memory (NVRAM).

The components of a router.

startup-config

The configuration file found in NVRAM

running-config

The copy of the configuration file that is loaded in RAM from NVRAM

What is the purpose of configuring a default gateway address on a host?

To identify the device that allows local network computers to communicate with devices on other networks.

Cisco 1941 routers have one console port with an RJ-45 interface and a second console port with a __________________ interface.

USB mini B

This mode has limited capabilities but is useful for basic operations. It allows only a limited number of basic monitoring commands but does not allow the execution of any commands that might change the configuration of the device.

User EXEC Mode

Connects routers to external networks, usually over a large distance.

WAN interface

For a computer to connect to the device and perform __________________ management tasks, at least one network interface on the device must be connected to the network and have an IP address configured on it.

in band

A network administrator is working on a Cisco router. The CLI prompt is "Router1(config-if)#". Which operation is the administrator likely to configure next?

a LAN interface

An __________________ is not a predefined variable.

argument

The Cisco function that limits access to the device though an out-of-brand connection is called __________________.

console password

The Cisco function that limits access to the privileged EXEC mode is called __________________.

enable password

The Cisco function that encrypts and restricts access to the privileged EXEC mode is called __________________.

enable secret

The command is traceroute and the user-defined argument is the ip-address of the destination device.

traceroute ip-address

The __________________ EXEC mode is identified by the CLI prompt that ends with the > symbol.

user

The Cisco function that limits access to the device through an SSH connection is called __________________.

vty password