w3ch3

160 Questions

What is the IP address of FastEthernet0/0 on Router1?

192.168.1.1

What is the status of the Vlan1 interface on Router1?

administratively down down

What command is used to bring up the interfaces on Router1?

no shutdown

What is the IP address of FastEthernet0/0 on Router2?

192.168.4.2

How many interfaces are administratively down on Router2?

What is the status of the FastEthernet1/1 interface on Router2?

administratively down down

What is the purpose of the 'no shutdown' command?

to bring up an interface

What command is used to display a brief summary of the interfaces on Router1?

show ip interface brief

What is the IP address of the FastEthernet0/0 interface?

192.168.1.1

What is the administrative status of the Vlan1 interface?

administratively down

What type of route is the 192.168.1.0/24 route?

connected

What is the meaning of the 'C' code in the 'show ip route' command?

connected

What is the gateway of last resort for this router?

not set

What is the status of the FastEthernet0/1 interface?

What is the purpose of the 'show ip interface brief' command?

to display a brief summary of the interfaces

What is the IP address of the FastEthernet0/1 interface?

192.168.4.1

Where does the router load the IOS and configuration file?

RAM

What is stored in the NVRAM?

Router configuration

What is the purpose of the ROM?

To start and maintain the router

What type of memory is the Flash memory?

EEPROM

What is the primary purpose of configuring a router?

To make it ready to use in networks for forwarding traffic

What is the Operating System (OS) used in routers?

IOS

What happens to the NVRAM when the router is reloaded or switched off?

It is not affected

What is the name of the first Ethernet interface in a Cisco router?

What is the main difference between the RAM and the NVRAM?

RAM is volatile, NVRAM is non-volatile

What is stored in the Flash memory?

IOS image

What is the component of a Cisco router that stores the configuration?

NVRAM

What is the purpose of a router interface?

To connect the router to a LAN

What can be done to the Flash memory from the router's console?

Write to it or delete its contents

What is the learning objective of this chapter regarding router interfaces?

How to check the links and router interfaces

What is the component of a Cisco router that executes instructions?

Processor (CPU)

What is the name of the image used in Cisco routers in case of boot failure?

RXBoot Image

What is the main function of the CPU in a Cisco router?

To generate interrupts to communicate with other components

What is the typical size of the IOS?

Around 2-5MB

What is the purpose of the RXBoot image?

To perform minor maintenance operations

What type of processor does a Cisco router use?

RISC processor

What is the purpose of the Flash card?

To load the IOS image

What is the typical CPU utilization on a normal router?

Around 20%

What is the function of the IOS in a Cisco router?

To give the router its various capabilities

What is the location of the RXBoot image?

In the router's ROM

What is the protocol used on the FastEthernet0/0 interface of Router1?

Manual

What is the administrative status of the Vlan1 interface on Router1?

Administratively down

What type of routes are the 192.168.1.0/24 and 192.168.4.0/24 routes?

Connected routes

What is the purpose of the 'show ip interface brief' command?

To display a brief summary of the interfaces

What is the code used to represent connected routes in the 'show ip route' command?

What is the administrative status of the FastEthernet0/0 interface on Router1?

What is the IP address of the FastEthernet0/1 interface on Router1?

192.168.4.1

What is the purpose of the 'show ip route' command?

To display the routing table

What is the administrative status of the FastEthernet1/1 interface on Router2?

Administratively down

What type of route is the 192.168.2.0/24 route?

Connected

How many interfaces are up on Router2?

What is the IP address of the FastEthernet0/1 interface on Router2?

192.168.3.1

What is the meaning of the 'C' code in the 'show ip route' command?

Connected

How many interfaces are administratively down on Router2?

What is the IP address of the FastEthernet1/0 interface on Router2?

192.168.2.1

What is the gateway of last resort for this router?

Not set

What is the purpose of the RAM in a Cisco router?

To load the IOS and configuration file

What is stored in the NVRAM?

The configuration file

What is the purpose of the ROM?

To perform basic tests and bootup

What can be done to the Flash memory from the router's console?

It can be written to or deleted

What is the main difference between the RAM and the NVRAM?

The RAM is volatile, while the NVRAM is non-volatile

Where is the Flash memory located?

At the back of the router

What happens to the NVRAM when the router is reloaded or switched off?

It remains unchanged

What is stored in the Flash memory?

The IOS image

What is the primary function of a router interface?

To connect the router to a LAN

What is the main component of a Cisco router that stores the configuration?

NVRAM

What is the name of the first Ethernet interface in a Cisco router?

What is the purpose of the RXBoot image?

To boot the router in case of failure

What is the purpose of configuring a router?

To make it ready to use in networks for forwarding traffic

What is the Operating System (OS) used in routers?

Internetwork Operating System

What is the component of a Cisco router that executes instructions?

The Processor (CPU)

What is the main difference between the RAM and the NVRAM?

RAM is volatile, while NVRAM is non-volatile

What is the primary function of the interface configuration mode?

To assign an IP address to an interface

What mode is similar to the BIOS mode of a PC?

ROMMON mode

What command is used to enter the configuration mode?

Router# configure terminal

What is the purpose of the 'CNTL/Z' command?

To exit the configuration mode

When can you enter the ROMMON mode?

When the router is reloaded or switched off

What is the main function of the CLI mode?

To execute configuration commands

What is done in the interface configuration mode?

Assigning an IP address to an interface

What is the purpose of the router's configuration dialog?

To enter the initial configuration

What is the status of the FastEthernet0/0 interface on Router1 initially?

Administratively down

What command is used to bring up the interfaces on Router1 and Router2?

no shutdown

What is the IP address of the FastEthernet0/1 interface on Router2?

192.168.3.1

What is the status of the Vlan1 interface on Router2?

Administratively down

What is the purpose of the 'show ip interface brief' command?

To display a brief summary of the interfaces

How many interfaces are administratively down on Router1 initially?

What is the IP address of the FastEthernet1/0 interface on Router2?

192.168.2.1

What is the purpose of bringing up the interfaces on Router1 and Router2?

To enable the router interfaces

Where does the router store its configuration file?

NVRAM

What is the primary function of the ROM?

To perform basic tests and boot up the router

What type of memory is the Flash memory?

EEPROM

What happens to the NVRAM when the router is reloaded or switched off?

It remains unchanged

What is stored in the RAM?

The IOS image and configuration file

What is the impact of having large and complex routing tables on the RAM?

It increases the amount of RAM needed

What can be done to the Flash memory from the router's console?

It can be written to or deleted

What is the purpose of the Flash memory?

To store the IOS image

What is the primary function of a router?

To forward traffic between networks

What is stored in the NVRAM?

The configuration file

What is the name of the first Ethernet interface in a Cisco router?

What is the purpose of the 'no shutdown' command?

To bring up an interface

What is the component of a Cisco router that executes instructions?

The processor (CPU)

What is the purpose of the Flash memory?

To store the IOS image

What is the purpose of a router interface?

To connect the router to a LAN

What is the Operating System (OS) used in routers?

Internetwork Operating System (IOS)

What is the command used to exit the interface configuration mode and go back to the global configuration mode?

exit

What is the purpose of the 'show ip interface brief' command?

To display a brief summary of the interfaces

In which mode can you configure the hostname of a router?

Global configuration mode

What is the IP address of the FastEthernet 0/1 interface on Router2?

192.168.3.1 255.255.255.0

What is the command used to configure the IP address of an interface?

ip address

In which mode can you configure the IP address of an interface?

Interface configuration mode

What is the command used to exit the global configuration mode and go back to the privileged EXEC mode?

What is the purpose of the 'hostname' command?

To set the hostname of a router

What is the main function of the CPU in a Cisco router?

To generate interrupts to communicate with other electronic components

What is the typical size of the IOS?

Around 2 to 5MB

What type of processor does a Cisco router use?

RISC processor

What is the purpose of the RXBoot image?

To perform minor maintenance operations when there is no Flash card

What is the location of the RXBoot image?

In the ROM (Read Only Memory)

What is the typical CPU utilization on a normal router?

Around 20%

What is the function of the IOS in a Cisco router?

To give the router its various capabilities and allow for updates

What is the purpose of the Flash card?

To store the IOS image and allow for updates

What is the command used to rename the router for easy identification?

hostname

What is the purpose of the banner login command?

To configure the login banner

What is the command used to save the router's configuration?

write

What is the IP address used to telnet to Router1 from Router2?

192.168.4.1

What is the prompt after renaming Router1?

CHN_CDR_KK_NGR(config)#

What is the command used to enter privileged EXEC mode?

enable

What is the prompt after entering privileged EXEC mode on Router1?

Router1#

What is the purpose of Task 4: Rename the Router?

To configure the router's hostname for easy identification

What is the primary purpose of configuring a router?

To make it ready to use in networks for forwarding traffic

What is stored in the NVRAM?

The router's configuration

What is the purpose of the Flash memory?

To store the IOS image

What is the function of the CPU in a Cisco router?

To execute instructions

What is the name of the first Ethernet interface in a Cisco router?

What is the purpose of a router interface?

To connect to a LAN

What is the component of a Cisco router that stores the configuration?

NVRAM

What happens to the NVRAM when the router is reloaded or switched off?

It is saved

What is the status of the FastEthernet1/1 interface on Router2?

administratively down

What is the purpose of the 'show ip route' command?

to display the routing table

What is the status of the FastEthernet0/0 interface on Router1?

What type of routes are displayed in the routing table?

only connected routes

What is the purpose of the 'show ip route' command?

to display the routing table of the router

What is the IP address of the FastEthernet0/0 interface on Router2?

192.168.4.2

What is the type of route that is directly connected to an interface?

connected route

What is the code used to represent connected routes in the 'show ip route' command?

What is the administrative status of the Vlan1 interface on Router1?

administratively down

What is the code used to represent OSPF inter area routes in the 'show ip route' command?

What is the administrative status of the FastEthernet0/0 interface on Router2?

administratively up

What can be seen in the routing table of Router2?

only connected routes

What is the purpose of the 'show ip interface brief' command?

to display a brief summary of the interfaces

What is the status of the FastEthernet0/1 interface on Router2?

administratively up

What is the type of route that is not set in the 'show ip route' command?

default route

What is the protocol used on the FastEthernet0/1 interface of Router1?

directly connected

What is the primary function of the CPU in a Cisco router?

To generate interrupts and communicate with other components

What is the typical size of the IOS on a Cisco router?

2-5 MB

What is the purpose of the RXBoot image on a Cisco router?

To provide a cut-down version of the IOS for minor maintenance

What type of processor does a Cisco router typically use?

RISC

What is the typical CPU utilization on a normal Cisco router?

10-20%

What is the location of the RXBoot image on a Cisco router?

ROM

What is the purpose of the Flash card in a Cisco router?

To load the IOS image

What is the function of the IOS in a Cisco router?

To give the router its various capabilities

Study Notes

Cisco Router Configuration Basics

Learning Objectives

Learn how to login to a router and login options available
Understand modes of router configuration
Learn how to check links and router interfaces, protocols running
Verify routing table contents
Configure IP address and bring up router interfaces to running state
Configure login banner on routers

Basic Components of Cisco Router

Interfaces
The Processor (CPU)
Internetwork Operating System (IOS)
RXBoot Image
RAM
NVRAM
ROM
Flash memory
Configuration Register

Interfaces

Allow connection to a LAN
Examples: E0 (first Ethernet interface), E1 (second Ethernet interface), S0 (first Serial interface), S1 (second Serial interface), BRI 0 (first B channel for Basic ISDN), BRI 1 (second B channel for Basic ISDN)

The Processor (CPU)

Main processor that takes care of main functions of the router
Generates interrupts (IRQ) to communicate with other electronic components
Uses RISC processors
CPU utilization on a normal router wouldn't exceed 20%

The IOS

Main operating system on which the router runs
Loaded upon router's bootup
Size: 2-5MB, but can be larger depending on router series
Gives router its capabilities and can be updated or downloaded from the router for backup purposes
Available on a PCMCIA Flash card

The RXBoot Image

Cut-down version of the IOS located in the router's ROM
Used for minor maintenance operations and bringing up/down interfaces when no Flash card is available

The RAM

Where the router loads the IOS and configuration file
Works like a computer's memory, where the operating system loads along with programs
Amount of RAM needed depends on IOS image and configuration file size
Routing tables are stored in RAM, so larger and complex routing tables require more RAM

The NVRAM

Special memory place where the router holds its configuration
Configuration is stored in NVRAM when saved
Not big compared to system's RAM
Not erased when the router is reloaded or switched off

ROM

Used to start and maintain the router
Contains code like Bootstrap and POST for basic tests and bootup
Cannot be altered as it's set from the factory and is Read Only

Flash Memory

An EEPROM card
Contains IOS image(s)
Can be written to or deleted from the router's console
Fits into a special slot at the back of the router

Cisco Router Configuration Basics

A router is a device with its own specialized Operating System (OS), having RAM, permanent storage, processor, and interfaces or ports.
The purpose of configuring a router is to make it ready to use in networks for forwarding traffic.

Basic Components of Cisco Router

Interfaces: allow connecting the router to a LAN, e.g., Ethernet ports or serial ports.
Processor (CPU): executes instructions and performs tasks.
Internetwork Operating System (IOS): the operating system of the router.
RXBoot Image: a boot image that loads the IOS.
RAM: Random Access Memory, loads the IOS and configuration file.
NVRAM (Non-Volatile RAM): stores the router's configuration.
ROM (Read Only Memory): contains code for starting and maintaining the router, e.g., Bootstrap and POST.
Flash memory: an EEPROM card that stores the IOS image(s).

Interfaces

Examples: E0 (first Ethernet interface), E1 (second Ethernet interface).

RAM

Loads the IOS and configuration file.
Stores routing tables.
The amount of RAM needed depends on the size of the IOS image and configuration file.

NVRAM

Stores the router's configuration.
Configuration is saved in NVRAM when the router is configured.
NVRAM is not erased when the router is reloaded or switched off.

ROM

Contains code for starting and maintaining the router.
Code is set from the factory and is Read Only.

Flash Memory

An EEPROM card that stores the IOS image(s).
Can be written to or deleted from the router's console.

CLI Modes

Interface configuration mode: configures interfaces, assigns IP addresses, and brings up interfaces.
ROMMON mode: entered by interrupting the boot process, used for password recovery or backing up the IOS on a device like a TFTP server.
Enable mode: uses the command "Router> enable" to enter privileged mode.
Configuration mode: uses the command "Router#configure terminal" to enter global configuration mode.

Router Configuration

Uses the command "Router(config)#hostname Router1" to set the hostname.
Uses the command "Router1(config)#interface fastethernet 0/0" to enter interface configuration mode.
Uses the command "Router1(config-if)#ip address 192.168.1.1 255.255.255.0" to assign an IP address to an interface.

Router Output

"show ip interface brief" displays the status of interfaces, including IP addresses and protocols.
"show ip route" displays the routing table, including connected networks and protocols.

Cisco Router Configuration Basics

A router is a device with its own specialized Operating System (OS), having RAM, permanent storage, processor, and interfaces or ports.
The purpose of configuring a router is to make it ready to use in networks for forwarding traffic.

Basic Components of Cisco Router

Interfaces (e.g., E0, E1, S0, S1, BRI 0, BRI 1)
The Processor (CPU) - all Cisco routers have a main processor that takes care of the main functions of the router
Internetwork Operating System (IOS) - the main operating system on which the router runs
RXBoot Image (also known as Bootloader) - a "cut-down" version of the IOS located in the router's ROM
RAM (Random Access Memory) - where the router loads the IOS and the configuration file
NVRAM (Non-Volatile RAM) - a special memory place where the router holds its configuration
ROM (Read Only Memory) - used to start and maintain the router, contains code like Bootstrap and POST
Flash memory - a card that contains the IOS image(s) and can be written to or deleted from the router's console

Router Interfaces and Protocols

FastEthernet0/0, FastEthernet0/1, Vlan1 are some of the interfaces on a Cisco router
An interface can be administratively down or up, and can have an IP address assigned to it
The no shutdown command is used to bring up an interface from down status
The show ip interface brief command is used to display the status of all interfaces on a router

Configuring Router Interfaces

To configure an interface, use the interface command followed by the interface type and number
To assign an IP address to an interface, use the ip address command followed by the IP address and subnet mask
To bring up an interface, use the no shutdown command

Router Configuration Basics

A router is a device with its own specialized Operating System (OS), having RAM, permanent storage, processor, and interfaces or ports.
The purpose of configuring a router is to make it ready to use in networks for forwarding traffic.

Basic Components of Cisco Router

Interfaces: allow connecting the router to a LAN; examples include E0 (first Ethernet interface), E1 (second Ethernet interface), S0 (first Serial interface), S1 (second Serial interface), and BRI 0 (first B channel for Basic ISDN).
Processor (CPU): the main processor that takes care of the main functions of the router; generates interrupts (IRQ) to communicate with other electronic components; typically uses RISC processors.
Internetwork Operating System (IOS): the main operating system that gives the router its capabilities; loaded upon bootup; can be updated or downloaded from the router for backup purposes.
RXBoot Image: a "cut-down" version of the IOS located in the router's ROM (Read Only Memory); used to load the IOS from a network tftp server or from another router that holds multiple IOS images.
RAM: used to store the IOS image.
NVRAM: used to store the router's configuration.
ROM: used to store the RXBoot image.
Flash memory: used to store the IOS image; can be a PCMCIA Flash card.
Configuration Register: used to store the router's configuration.

Router Interfaces

Ethernet interfaces: E0, E1, etc.
Serial interfaces: S0, S1, etc.
BRI interfaces: BRI 0, BRI 1, etc.

Router Configuration

To configure a router, use the configure terminal command.
To set the hostname of a router, use the hostname command.
To configure a login banner, use the banner login command.
To save the router's configuration, use the write command.

Router Status

Use the show ip interface brief command to display the status of the router's interfaces.
Use the show ip route command to display the routing table.
The gateway of last resort is not set if no default gateway is configured.

Task Observations

In both routers, only connected networks appear in the routing table.
Renaming a router makes it easier to identify.
Configuring a login banner displays a message to users when they log in to the router.
Saving the router's configuration is necessary to retain the changes made.

This quiz is about configuring router interfaces using commands in Cisco routers. It requires knowledge of interface configuration and activation.

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