Chapter 2 Configuring a Network Operating System

Question 1

What is a router?

2.0.1.1

Answer 1

Forwards data packets to and receives data packets from the Internet

Question 2

What is a Switch?

2.0.1.1

Answer 2

Connects end devices using network cables

Question 3

What is a Wireless access point?

2.0.1.1

Answer 3

Consists of a radio transmitter capable of connecting end devices wirelessely

Question 4

What is a firewall?

2.0.1.1

Answer 4

Secures outgoing traffic and restricts incoming traffic

Question 5

What is the deference between RAM and Flash?

2.1.1.3

Answer 5

RAM is volatile memory where stored memory is lost when power is lost.

Flash memory is non volatile and retains memory when power is lots. Flash memory can be over written.

Question 6

What is the difference between ROM and NVRAM?

2.1.1.3

Answer 6

ROM is read only Memory information stored on the ROM chip is permanent and can not be deleted.

NVRAM is Non volatile RAM that data is retained even after the lose power, it also can be update

Question 7

What is a Router boot order?

Answer 7

1. Perform Power-on self test (POST) and load the bootstrap program.
2. Locate and load the Cisco IOS software
3. Locate and execute the startup configuration file orenter setup mode.
4. After the Cisco IOS software is loaded, the bootstrap program searches for the startup configuration file in NVRAM

Question 8

What are the 3 ways to connect to a router or switch?

2.1.2.1

Answer 8

Direct to the Console
Telnet or SSH (Remotely via the internet or network)
AUX port (Phone Line)

Question 9

What are 4 types Command Line (CLI) modes?

2.1.3.1

Answer 9

> User executive (User EXEC) mode
# Privileged executive (Privileged EXEC) mode
(config) # Global configuration mode
(config) # Specific Configuration Modes

Question 10

What access is granted at the User executive (User EXEC) mode?
2.1.3.2

Answer 10

The user EXEC mode allows only a limited number of basic monitoring commands. This is often referred to as view-only mode.

Question 11

What access is granted at Privileged executive (Privileged EXEC) mode?
2.1.3.2

Answer 11

execution of configuration and management commands requires that the network administrator use the privileged

Question 12

What access is granted at the Global Configuration Mode?

2.1.3.3

Answer 12

global configuration mode, CLI configuration changes are made that affect the operation of the device as a whole.

Question 13

What is access is granted at the Specific Configuration Mode?
2.1.3.3

Answer 13

Can access sub-configuration modes. Each of these modes allows the configuration of a particular part or function of the IOS device

Question 14

What is the command to access User executive (User EXEC) mode?
2.1.3.4

Answer 14

press enter

Question 15

What is the command to access Privileged executive (Privileged EXEC) mode?
2.1.3.4

Answer 15

enable (type “disable” ) to exit

Question 16

What is the command to access Global Configuration Mode?

2.1.3.5

Answer 16

configuration terminal

must be at the (Privileged EXEC) mode

Question 17

What command is used to find help on commands?

2.1.3.6

Answer 17

show ?

Question 18

What command is used to configure a Hostname name?

2.2.1.4

Answer 18

hostname R1
(must be global configuration mode)

Question 19

What is the command to configure console password?

2.2.2.3

Answer 19

(config)# line console 0
(config-line)# password xxxxx
(config-line)# login
(config-line)# exit
(config)# exit

Question 20

What is the command to configure privileged EXEC (enable) mode?
2.2.2.2

Answer 20

(config) # enable secret xxxxxx

(config) # exit

Question 21

what command is to encrypt password for users mode?

Answer 21

(config) # enable secret xxxxxx

(config) # exit

Question 22

what command is to encrypt password Privileged EXEC) mode?

2.2.2.4

Answer 22

(config) # service password-encryption

(config) # exit

Question 23

What command is set the Banner of the day?

2.2.2.5

Answer 23

(config)# banner motd #Activity may be monitored#

Question 24

What command is set to copy configuration files to the NVRAM?
2.2.3.1

Answer 24

R1# copy running-config startup-config

Question 25

What is the command to show ip and other information?

2.2.3.1

Answer 25

R1# show running-config

Question 26

What is the difference between ipconfig and ipconfig/all

Answer 26

ipconfg only give you basic information about the network, ip address, subnet mask, default gateway

ipconfig/all output a complete information, ip address, subnet mask, default gateway mac addresses dhcp lease time etc

Question 27

What is the Address Resolution Protocol (ARP) process?

3.3.2.3

Answer 27

The sending host uses a protocol called Address Resolution Protocol (ARP) to discover the MAC address of any host on the same local network. The sending host sends an ARP Request message to the entire LAN.