Information Technology Reference
In-Depth Information
12. Which of the following IP addresses has 12 bits in the host ID?
a. 172.31.21.12/16
b. 172.31.89.100/12
c. 12.49.127.88/8
d. 12.156.109.252/20
13. You have set up an e-mail server that needs to respond to e-mail requests using
mail.coolgadgets.com and mail.niftytools.com in the request URL. How can you do this?
a. Install two NICs and assign the same IP address to both NICs. Configure DNS to map one
MAC address to mail.coolgadgets.com and the other MAC address to mail.niftytools.com.
b. Configure two IP addresses on one NIC. Configure DNS to map one IP address to
mail.coolgadgets.com and the other IP address to mail.niftytools.com.
c. Install two NICs and connect each one to a different network. Set up the router on each
network to forward mail packets to the NIC bound to the correct URL.
d. Install two NICs and assign different IP addresses to each NIC, but make sure both IP
addresses use the same network ID. Configure the NICs to use default gateways on dif-
ferent networks.
14. You have a server with two NICs, each attached to a different IP network. You're having
problems communicating with devices on remote networks that send packets to one of the
interfaces. The server receives the packets fine, but the server's replies never reach the
intended destination network. Replies to packets that come in through the other interface
seem to reach their destination without any problems. What can you do that will most likely
solve the problem?
a. Configure a second default gateway on the interface exhibiting problems.
b. Change the default gateway to use the router that's on the network of the interface
exhibiting problems.
c. Use the Route command to add routes to the networks that aren't receiving replies.
d. Replace the NIC that's having problems replying to packets.
15. You have just changed the IP address on a computer named Computer5 in your domain
from 172.31.1.10/24 to 172.31.1.110/24. You were communicating with this computer
from your workstation fine right before you changed the address. Now when you try the
command “ping computer5” from your workstation, you don't get a successful reply. Other
computers on the network aren't having a problem communicating with the computer.
Which command might help solve the problem?
a. arp -d
b. ipconfig /flushdns
c. tracert computer5
d. ping -6 172.31.1.110
16. A user complains that opening NFS shares on his recently installed Linux computer from his
Windows computer is taking an inordinately long time. Opening shares on Windows servers
doesn't seem to take as long. He'll be using his Linux computer to store and back up files
more often than he'll be accessing shares on Windows computers. What is a good course of
action to improve the speed of opening Linux shares?
17. You're running the network map feature on your Windows Server 2008 machine. An older com-
puter used by a colleague doesn't appear on the map, however. What could be the problem?
a.
Your network connection isn't bound to the LLTD Responder protocol.
b.
Your colleague's network connection isn't bound to the LLTD Mapper I/O Driver protocol.
c.
Your colleague's computer is running Windows XP.
d.
Your colleague's computer is running Windows Vista.
Search WWH ::
Custom Search