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26 Cards in this Set
- Front
- Back
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Which of the following commands would let you determine the MAC address of a Windows computer?
a - ipconfig b - ipconfig /all c - ipconfig /release d - ipconfig /flushdns |
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.
When a client resolves a fully-qualified domain name (FQDN) to an IP address, that info is stored locally in a cache file known as the DNS resolver cache. When the client sends a request to a FQDN, the cache is checked first to see if the address is known. You might want to empty this cache because entries in it can become stale. |
