CCNA Ch. 2 Test Review
What prompt signifies Global configuration mode
(config) #
How can a technician discard changes that were done to the running configuration file?
Issue the RELOAD command without SAVING the running configuration
What command encrypts passwords that are stored in router or switch configuration files?
service password-encryption
What command is used to verify the status of the physical interfaces of a switch and if the SVI has been configured?
show ip interface brief
What command displays the contents of the current configuration file in RAM (contents are lost during a power cycle)?
show running-config
What command displays the contents of the saved configuration file in the NVRAM?
show startup-config
What command displays information about the currently loaded IOS version, along with hardware and device information?
show version
Displays the next screen
space bar
What key stroke will display the next screen of output at the "--- More---" prompt?
space bar
What key completes abbreviated commands and parameters?
tab
Completes the remainder of a partially typed command or parameter
tab key
Why is it important to configure a hostname on a device?
to identify the device during remote access
T or F.The enable secret password command is more secure than the enable password password.
true
Allows user to scroll backward through former commands
up arrow
What key scrolls backwards through previously entered commands?
up arrow
Three characteristics of an IPv4 address
32-bit number, 4 octets separated by a dot (dotted decimal), numbers range from 0-255, and must be unique for a device to communicate in a LAN
Provides context-sensitive help
?
Used to display a message when a user accesses the switch
Banner MOTD
When a command takes affect when entered while in the running-configuration file
Affects the operation of the device immedi
Exit
Allows a user to return to the previous level in the command hierarchy
CTRL-Shift-6
Allows the user to interrupt an IOS process such as ping or traceroute
What is a generic term for the collection of network operating systems used on Cisco networking devices?
Internetwork Operating System (IOS)
What are two ways a user can interact with the shell?
CLI and GUI
Enable
Command use to change the CLI between user and privileged modes
Configure terminal
Command used to enter global config mode
List the ways to access the CLI of a router or switch.
Console, Telnet/SSH, Aux port
Enables a new PC to be able to connect to the Internet with no additional configuration
DHCP
Which addressing method allows a new PC to reach the Internet after making a connection to the network?
DHCP
The ___ server is used to maintain the mapping between the IP addresses and names of various devices.
DNS
Flash
Default storage for IOS
Two functions provided to users by the context-sensitive help feature of the Cisco IOS CLI
Displaying a list of all available commands within the current mode and Determining which option, keyword, or argument is available for the entered command
Command that allows a user to return to the previous level in the command hierarchy
EXIT
Service password-encryption
Encrypts all passwords
T or F All network devices support an auxiliary connection.
False
Order of the 4 IOS modes that a user travels through in order to configure the console port
First mode = User EXEC (R1>) Second mode = Privileged EXEC (R1#) Third mode = Global Configuration (R1(Config)#) Final mode = Line Configuration (R1(Config-line)#)
List the IOS CLI hierarchical order from most basic to most specialize.
First mode: user exec mode Second mode: privileged exec mode Third mode: global configuration mode Fourth mode: other specific configuration
The IOS is stored in ___ (Non-volatile RAM).
Flash
Switch(Config)#
Global Configuration mode
Command used on a Windows PC to see its IP configuration
IPCONFIG
Reason for configuring a hostname on a device
Identify the device during remote access
The portion of the OS code that interacts directly with the computer hardware is known as the ___.
Kernel
Two features of RAM memory
Location of the configuration that is actively running on the device and Contents are lost during a power cycle
Command used to test connectivity
PING
Console
Password that reduces the chance of unauthorized personnel from physically plugging a cable into the device and gaining access to that device
Switch#
Privileged EXEC mode
Which of the two primary modes of operation has the higher level of authority?
Privileged exec mode
Give an example of volatile memory (erased during power cycle).
RAM
How to erase the Running-configuration file
Reload without saving the file
RAM
Running-config is stored there
Method used by a network administrator who needs to keep a remote connection secure and private
SSH
Copy Run Start
Saves the contents of RAM to NVRAM
Which remote access method will keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it?
Secure Shell (SSH)
Encrypts all passwords stored in the configuration file
Service Password-Encryption
Command used to display the contents of the saved configuration file in the NVRAM
Show Startup-config
NVRAM
Startup-config is stored there
Interface that allows remote management of a Layer 2 switch
The Switch Virtual Interface
Reason a Layer 2 switch needs an IP address
To be managed remotely
T or F. Changes made to the running configuration file take effect immediately.
True
Which procedure is used to access a Cisco 2960 switch when performing an initial configuration in a secure environment?
Use the CONSOLE_ port to locally access the switch from a serial or USB interface of the PC
Procedure used to access a switch when performing an initial configuration
Use the console port to locally access the switch from a serial of USB interface of the PC
Banner MOTD
Used for legal notification because it is displayed to all connected terminals
Tab
Used to complete the remainder of a partially typed command or keyword
Switch>
User EXEC mode
Mode that will be displayed if a valid IOS and config file are present AND a console password is not set
User EXEC mode or ">" prompt
What command displays a message that is used for legal notification when a user accesses router/switch?
banner motd
A router has a valid operating system and a configuration file stored in NVRAM. The configuration file contains an enable secret password but no console password. When the router boots up, which mode will display?
User mode
Three characteristics of the virtual interface
Uses Telnet/SSH protocols for access, Requires an active network connection, and Default SVI is VLAN 1
Which interface is the default SVI on a Cisco switch?
VLAN 1
List the three ways contextsensitive help (?) is used.
a. Get a LIST of available commands b. List of commands or keywords that START with a specific character or characters c. Determine which options, keywords, or arguments that MATCH a specific command
List the guidelines for host naming conventions.
a. Start with a LETTER b. Contain no SPACES c. End with a letter or DIGIT d. Use only letters, digits, and DEVICES e. Be less than 64 characters in length
What command is used to enter global configuration mode?
configure terminal
Which password reduces the chance of unauthorized personnel physically plugging a cable into the device and gaining device access?
console
List the two out-of-band connections used to configure a network device.
console or aux port
What command will save the contents of RAM to NVRAM?
copy running -config startup-config
Aborts commands such as PING or TRACEROUTE
ctrl + shift + 6
What key combination allows the user to abort commands such as ping or traceroute?
ctrl + shift+ 6
The ___ ___ address is the IP address of the router interface used for network traffic to exit the local network.
default gateway
Which command or key combination allows a user to return to the previous level in the command hierarchy?
disable or exit
The structure of an IPv4 address is called ___ decimal notation and is represented with ___ decimal numbers between __ and ___
dotted or four or 0 or 255
What command is used to change the CLI between the user and privileged modes?
enable
List the four types of passwords used for basic security.
enable password or enable secret or console password or VTY password
To move from any submode of the privileged EXEC mode to the privileged EXEC mode, enter the __ command or enter the key combination __.
end or ctrl z
What command will remove the contents of NVRAM?
erase startup-config
What are three configurations needed to connect an end device to a network?
ip adress and subnet mask default gateway
What is the Windows PC command to show the IP address of that PC?
ipconfig
Why would a Layer 2 switch need an IP address?
managed remotely
What command is used to administratively enable the interface to an active state?
no shut down
IP addresses can be assigned to both ___ ports and ___interfaces on devices.
physical or virtual
What command is used to test for connectivity?
ping
Which interface allows remote management of a Layer 2 switch?
virtual interface
