220-901 A+ Command Line Tools & Troubleshooting
IFCONFIG
A Linux command-line utility used for displaying and modifying network interface configuration settings is called: IFCONFIG, NET CONFIG, IPCONFIG, NEWTWORKSETUP
If the modem is attached to the computer by using a USB hub, try to ______ the USB hub by plugging the cable from the modem directly into one of the USB ports on your computer.
bypass
TRACERT
determines packet takes to destination used in windows uses ICMP TTL
PING is used _______ to ensure that the host computer the user is trying to reach is actually operating.
diagnostically
If you are having Internet connections trouble with a DSL modem you need to verify that you are not using a ________ between the phone jack and the modem.
DSL filter
NET stop
stops a service
If the modem is plugged into one of the ports on the front of a desktop computer, try plugging the USB cable into one of the ports on the back of the computer instead. Some computers don't provide ______ _____to the front USB ports. This can create problems with the connection to the modem.
sufficient power
What Windows Syntax would you type to find the IP address for amazon.com?
ping amazon.com
Wireless Access Point Intermittent connectivity Check the strength of your WAP. Move closer to the router or get a signal ______.
repeater
Wireless Access Point Intermittent connectivity Ping your wireless router to see if it responds. These values refer to how long it took your router's server to _____.
reply
Ping allows a user to verify that a particular IP address exists and can accept _____.
requests
Once the traceroute command is entered, the utility sends a packet using _____ protocol. The packet has a time limit value referred to as the ____ __ ___ value that is designed to be exceeded by the first router that receives the packet.
ICMP - time to live (TTL)
IP conflict - occurs when two or more computers have the same ___________ to them
IP assigned
What is designed to help troubleshoot NetBIOS name resolution problems?
Nbtstat
____ resolves NetBIOS names to IP addresses
Nbtstat
_____ is a command line command that removes and corrects preloaded entries using a number of case-sensitive switches
Nbtstat
____ is similar to ping, but it provides information about the path a packet takes by recording the route (the gateway at each hop) through the internet between the sending computer and a target destination.
Traceroute
If your device does not work well, click on Driver tab to check driver details. _____ the driver if needed.
Update
IPCONFIG
Which of the Windows Command Prompt tools listed below allows to display IP addresses, subnet mask, and default gateway for all adapters? NETSTAT, IFCONFIG, TRACERT, IPCONFIG
NBSTAT
Which of the following answers lists a Windows command-line utility designed to be of help in troubleshooting NetBIOS name resolution problems? NETSTAT, NSLOOUP, NBSTAT, TRACEROUTE
NSLOOKUP
Which of the network administration command-line tools listed below is used for DNS queries? TRACERT, NSLOOKUP, NETSTAT, PATHPING
PING
Which of the following command-line utilities allows to test the reachability of a host across an IP network? NETSTAT, IPCONFIG, TRACERT, PING
WHAT commands allow you to configure your network interfaces and view information about them.
ipconfig /all
NBTSTAT -n
list local netBIOS names
NBTSTAT -A (IP ADDRESS)
list remote netBIOS name and IPs
NSLOOKUP
lookup info from DNS server, windows, mac and linux
NETDOM
manages active directory joins PC to domain removes account view domain info
NET use
map a network share to drive letter
IPCONFIG/ALL
more info than just IP info, DNS, and default gateway
NETSTAT
network statistics
Wireless Access Point Intermittent connectivity Ping an Internet _________ name. This verifies you/your provider's DNS configuration is correct.
domain
TRACEROUTE determines the time required for the ___ to the first router.
hop
With ____________, you can look up the IP addresses associated with a domain name and perform a reverse lookup to find the domain name associated with an IP address.
nslookup
NETSTAT -n
doesn't resolve names, only shows IP
Bootrec /fixmbr
Fixes MBR
One of the benefits of UNIX is its extensive syntax reference in the form of "manual pages," commonly referred to as "man pages." These man pages can be invoked with the
"man" command, followed by the command for which you wish to view a syntax reference.
Chkdsk /f
Fixes errors on the disk
Ipconfig /flushdns
Flushes DNS resolver cache
Netstat -b
Show binaries
Wireless Access Point Intermittent connectivity: find your Access Point (router) IP address. Open a command prompt and type _________ /____. Search through the results until you find the DNS server(s) and router
ipconfig /all
NBTSTAT
netBIOS over TCP/IP windows utility for querying netBIOS over TCP/IP info
To use _______, you must run the _______ command from an elevated command prompt. To open an elevated command prompt, click Start, right-click Command Prompt, and then click Run as administrator.
netdom
IFCONFIG
used in linux (IPCONFIG)
What are the steps to troubleshoot no Internet connectivity on a laptop?
1. On a laptop make sure the network adapter switch is turned on 2. Unplug and plug in cables from the ISP device to the computer 3. Reset the modem 4. Reboot the computer
Diskpart
Add, remove, list volumes/partitions
Net start <service>
Start a service
If there is a Request Time Out error, the network card is not working. What should you do next?
Check the driver status in Device Manager
Check your router. Because of the new networking features in Windows Vista and Windows 7, some older network routers are not ______fully with these versions of Windows and can cause problems.
Compatible
Ping -t
Continuous ping
copy <filename> LPT1:
Copies a virtual printer file to the printer on LPT1
The ipconfig command is used on Windows, while the ______ command is used on Linux, Mac OS X, and other Unix-like operating systems.
Ifconfig
Can be used to view all your configured network interfaces, their IP addresses, DNS servers, and other information
Ifconfig - Ipconfig
With _______ ________, you can determine why a virtual desktop has been unable to connect to the corporate network
Ifconfig - Ipconfig
What are the ipconfig commands to remove and apply a new DHCP address to a computer?
In the command prompt type the IPCONFIG /RELEASE and the IPCONFIG /RENEW for each of the computers.
Ping uses the ________________ echo function by sending a small packet containing 64 data bytes -- 56 data bytes and 8 bytes of protocol reader information to a target computer.
Internet Control Message Protocol (ICMP)
Nbtstat -n
List local netbios names
Nbtstat -A <IP address>
List remote netbios names
Nbtstat -a <device name>
Lists remote netbios ip
Chkdsk /r
Locate and recover bad sectors
Netdom
Manage active directory database
Net use h: \\servername\sharename
Maps a network drive to a share letter
TRACERT
Microsoft Windows OS command-line command for displaying intermediary points on the packet route is called: TRACERT, ROUTE PRINT, TRACEROUTE, NETSTAT
____ is a command line command that can be used to manage almost every aspect of a network and its settings including managing network shares, network print jobs, network users, and much more.
Net
____ is a command-line tool available if you have the Active Directory Domain Services (AD DS) server role installed.
Netdom
_____ command stands for network statistics and is used to display very detailed information about how your computer is communicating with other computers or network devices.
Netstat
You should be familiar with how DNS works in order to use this tool
Nslookup
_____ stands for name server lookup, displays information that you can use to diagnose Domain Name System (DNS) infrastructure.
Nslookup
Used prior to using traceroute to see whether a host is present on the network.
PING
If the card is not working, you will need to replace it. If it is fine proceed to ______
PING your IP address
If you run Ping and there is a _____ _____ ____ ____, the network card is not working.
Request Time Out error
Some modems have a battery backup that prevents the lights from going out. For this type of modem, press and quickly release the ________. If you don't see it remove the battery instead.
Reset button
If the correct network adapter is listed as disabled, right-click it, and then click Enable. If the wrong network adapter is listed as the default, right-click the correct device, and then click __________.
Set as Default Connection.
Net stop <service>
Stop a service
NET VIEW
The following Windows command-line command can be used to display a list of domains, computers, or shared resources available on a specific computer. NET VIEW, REG, NETSTAT, VIEW
When you type in traceroute what is returned by the first router?
Time Exceeded Message
NETSTAT
What is the name of a command-line utility in MS Windows that allows for displaying protocol statistics and current TCP/IP network connections? TRACERT, TRACEROUTE, NETSTAT, NSLOOKUP
Net view \\<servername>
View network resources
Bootrec /fixboot
Writes a new boot sector. Fixes the volume boot record
With ______, you can identify which IP has been assigned to a fully qualified domain name (FQDN).
nslookup
What command prompt command would you use to check to see if your Network Card is working properly
ping 127.0.0.1
* Restart your modem, and then restart your router. * Remove the power cable from the modem and router. After all lights on the device have gone out, wait at least 10 seconds, and then ______________
plug the modem and router back in.
NETSTAT -a
shows all active connections in and out of PC
NETSTAT -b
shows binaries
NET start
starts a service
PING
test reachability and round trip time uses ICMP as troubleshooting tool
TRACEROUTE
used in linux same as tracert
IPCONFIG
used in windows, unix shows IP info, DNS, default gateway and etc.
NET view
view network resources
NET
windows network command
Internet connection problems can be caused by ______
• A wireless network adapter switch is not enabled • WEP, WPA, or WPA2 security key or passphrase issues • Cables are not connected properly • Corrupted, incompatible, or out of date drivers • Missing firmware updates • The incorrect Network Adapter is being used • Hardware or software problems