Chapter 2 Configuring a Network Operating System Flashcards
What is a router?
2.0.1.1
Forwards data packets to and receives data packets from the Internet
What is a Switch?
2.0.1.1
Connects end devices using network cables
What is a Wireless access point?
2.0.1.1
Consists of a radio transmitter capable of connecting end devices wirelessely
What is a firewall?
2.0.1.1
Secures outgoing traffic and restricts incoming traffic
What is the deference between RAM and Flash?
2.1.1.3
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.
What is the difference between ROM and NVRAM?
2.1.1.3
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
What is a Router boot order?
- Perform Power-on self test (POST) and load the bootstrap program.
- Locate and load the Cisco IOS software
- Locate and execute the startup configuration file orenter setup mode.
- After the Cisco IOS software is loaded, the bootstrap program searches for the startup configuration file in NVRAM
What are the 3 ways to connect to a router or switch?
2.1.2.1
Direct to the Console Telnet or SSH (Remotely via the internet or network) AUX port (Phone Line)
What are 4 types Command Line (CLI) modes?
2.1.3.1
> User executive (User EXEC) mode
# Privileged executive (Privileged EXEC) mode
(config) # Global configuration mode
(config) # Specific Configuration Modes
What access is granted at the User executive (User EXEC) mode?
2.1.3.2
The user EXEC mode allows only a limited number of basic monitoring commands. This is often referred to as view-only mode.
What access is granted at Privileged executive (Privileged EXEC) mode?
2.1.3.2
execution of configuration and management commands requires that the network administrator use the privileged
What access is granted at the Global Configuration Mode?
2.1.3.3
global configuration mode, CLI configuration changes are made that affect the operation of the device as a whole.
What is access is granted at the Specific Configuration Mode?
2.1.3.3
Can access sub-configuration modes. Each of these modes allows the configuration of a particular part or function of the IOS device
What is the command to access User executive (User EXEC) mode?
2.1.3.4
press enter
What is the command to access Privileged executive (Privileged EXEC) mode?
2.1.3.4
enable (type “disable” ) to exit
What is the command to access Global Configuration Mode?
2.1.3.5
configuration terminal
must be at the (Privileged EXEC) mode
What command is used to find help on commands?
2.1.3.6
show ?
What command is used to configure a Hostname name?
2.2.1.4
hostname R1 (must be global configuration mode)
What is the command to configure console password?
2.2.2.3
(config)# line console 0 (config-line)# password xxxxx (config-line)# login (config-line)# exit (config)# exit
What is the command to configure privileged EXEC (enable) mode?
2.2.2.2
(config) # enable secret xxxxxx
(config) # exit
what command is to encrypt password for users mode?
(config) # enable secret xxxxxx
(config) # exit
what command is to encrypt password Privileged EXEC) mode?
2.2.2.4
(config) # service password-encryption
(config) # exit
What command is set the Banner of the day?
2.2.2.5
(config)# banner motd #Activity may be monitored#
What command is set to copy configuration files to the NVRAM?
2.2.3.1
R1# copy running-config startup-config
What is the command to show ip and other information?
2.2.3.1
R1# show running-config
What is the difference between ipconfig and ipconfig/all
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
What is the Address Resolution Protocol (ARP) process?
3.3.2.3
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.
