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