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26 Cards in this Set
- Front
- Back
Which of the following commands would let you determine the MAC address of a Windows computer? |
b – ipconfig /all
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How would you go about pinging a computer continuously?
a – ping –n b – ping –t c – ping –1 d – ping 127.0.0.1 |
b – ping –t
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A computer you are troubleshooting can't obtain the proper address from a DHCP server. which of the following commands should you try first?
a – ipconfig /release b – ipconfig /renew c – ipconfig /displaydns d – ipconfig /source=dhcp |
a – ipconfig /release
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If you need to know information about your local network adapter such as the ip address, subnet mask, and default gateway, what command should you use?
a – netsh b – ipconfig c – netstat |
b – ipconfig
pg 101 |
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If you wanted to discover the MAC address of your network adapter, what command should you use?
a – ipconfig /release b – ipconfig /revealmac c – ipconfig /all |
c – ipconfig /all reveals probably more info that you need but includes the MAC address, which you do need.
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If a new DHCP server has been introduced to the network or the current one has been reconfigured, what commands should be entered into connected hosts?
a – netstat –e b – ipconfig /dhcp connect c – ipconfig /release and ipconfig /renew d – ipconfig /displaydns and ipconfig /flushdns followed by ipconfig /registerdns |
c – ipconfig /release and /renew will release old and retrieve new IP addresses and configurations from the new or reconfigured DHCP server.
d – these commands could also be useful for displaying your dns records, emptying your dns cache, and registering your computer with the nearest dns server. Pg 104 |
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Ping may be the easiest network–related command to use, but do you know the two ways to ping your own computer?
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ping loopback
ping 127.0.0.1 |
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How would you ping a computer continuously?
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ping –t [IP address]
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If you need to display active TCP and UDP connections for your local computer which command should you use?
– netstat – nbstat – ping – ipconfig – tracert |
netstat.
nbstat will show statistics for remote machines |
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You need to track the network connections made by internet explorer. What commands would help in this query?
a – netstat –a b – netstat –an c – netstat d – nbstat –a |
a–c will be of help to you. –a displays TCP and UDP connections. –an displays the same, but in numeric format.
Pg 109 |
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Which of the following commands displays NetBIOS over TCP/IP statistics for local and remote computers?
a – netsh b – ipconfig c – netstat d – nbstat |
d – nbstat – think "nb=NetBIOS"
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What command would you use to determine how many hops between your computer and google.com?
This can take some time. Do you know how to speed this command up? |
tracert google.com
This command can also be used to determine if there is a problem between you and what server you are looking at. If you add the –d flag to your query it will show IP addresses only. e.g., tracert –d google.com Pg 111 |
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You are having a hard time getting to nyt.com and want to see the packet loss occuring on the route to their servers from your PC. What command would you enter?
a – tracert –d nyt.com b – tracert nyt.com c – pathping nyt.com d – pathping –n nyt.com |
c and d would both work. pathping –n would simply display numbers only, which is faster.
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If you needed to find out the IP address for a specific website, how would you do it?
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nslookup google.com (replace google.com with the site of your choice)
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T/F:
In today's modern operating systems, telnet is the best way to remotely access another computer. |
False.
While telnet is a means to remotely access a computer or networking device, it is outdated and typically not installed or permitted to be used by modern operating systems. |
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The following command does what?
netsh interface ip set address name="Local Area Connection" static 192.168.1.101 255.255.255.0 192.168.1.1 |
It uses the netsh shell to assign those settings to your NIC
Pg 114 |
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The following command does what?
netsh interface ip set address name="Local Area Connection" source=dhcp |
It changes the primary IP address from static to dynamically assigned.
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T/F:
A typical desktop computer is built to access other networks and is multi–homed. |
False.
A typical desktop computer has only one network adapter and as such is not multi–homed (having at least 2 NICs). |
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To display a list of network adapters and their MAC addresses, which command should you use?
a – route print b – ipconfig /all c – nbstat /all d – netstat –r |
a, b, and d would work just fine. They would just present the information differently and add various bits in on the side as well.
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Which command allows you to display and make changes to the IP routing table of the computer, along with displaying IP connections of other networks?
a – nbstat /all b – ipconfig /all c – route d – netstat –r |
c – route
Note also that most desktop PCs do not have a secondary NIC needed to connect to or make changes to other networks. |
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What is RIP?
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Routing Information Protocol
A distance vector TCP/IP protocol that directs packets along the best routes. It sends the routing information table every 30 seconds as a broadcast to all neighboring routers. It is limited to 15 hops. |
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What is OSPF?
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open shortest path first
A link–state TCP/IP protocol that monitors the network for routers whose link states have changed which allows routers to choose the best path based on current network conditions. It uses cost as a metric, not distance, and supports VLSM (variable length subnet masks) |
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To troubleshoot your computer, which is making strange connections to the internet on its own, which command should use?
a – ipconfig /all b – tracert c – netstat |
c – The netstat command will show you the network sessions to various computers on the internet.
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What two commands would allow you to empty the DNS cache of a computer and reconnect to the nearest DNS server?
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ipconfig /flushdns and ipconfig /registerdns
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What command would you use to troubleshoot a DNS server?
a – nslookup b – netsh c – nbstat d – pathping or tracert |
a – The nslookup command is used to troubleshoot a DNS server and to resolve the name of a specific host.
netsh can be used to troubleshoot a WINS server or manage a DHCP server (among other uses). tracert and pathping can be used to identify a failing router. |
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You need to delete the entries in the Domain Name System (DNS) cache on your computer. Which command should you use?
a – netstat b – tracert c – ipconfig d – dnscmd |
c – ipconfig /flushdns will do the trick. |