70-059TCP/IP 4.0 试题回顾（4） 2

24)You have a domain spanning across three subnets.You want the clients in all the 3 subnets to be able to communicate and browse each other. How will you do that?
You install and configure an NT Server to be put in the middle of three subnets.
Required:
It should be made to act as a router.

That machine to be able to supply IP address to all the machines belonging to the three subnets.
>Configure the Server to act as router.
>Enable IP Forwarding.
>Implement the DHCP Server on the NT Server.
>Configure RIP.


26)You want a Workstation in Subnet A to browse and Communicate with the other workstation in subnet B. But you can t even though they have their own WINS Servers installed.What will you do? WINS REPLICATION.
27)You have Subnet A, Subnet B and Subnet C. The Workstations in the subnet A&B uses the WINS in the Subnet A. The Workstations in Subnet C uses its own. How will you configure to have the users of Subnet C and B to browse themselves freely? WINS REPLICATION.
28)You have two WINS servers and you want them to participate in replication.The link is a 56kb Slow link.You also want the Replication to take place once in a day.In the display appellete the WINS at Subnet A is configured to replicate once it get 5000 entries with its push partner WINS at subnet B. The WINS at Subnet B is configured to replicate with its pull partner to replicate once in 24 hours. Just grade it.
29)You don t want to resolve host names into IP address using a DNS which contains static entries in it.What will you install in alliance with DNS to resolve IP address from a dynamically updated DNS database? WINS and ENABLE THE DNS FOR WINS RESOLUTION.
30) 157.21.36.121 UNIX Product
157.51.25.110 Product developer
Above is a Hosts file entry.When you say "ftp product" you get attached to the ftp server. But when you say "FTP 157.51.25.110" you can t reach it.Why? INVALID FTP SERVER S IP.... You have to know how the HOSTS file works.....
31) How will you log on to a Domain controler which is in another domain and for that what entries do you require at your Workstation s lmhosts file? (PDC and BDC) #PRE #DOM
32) Why a workstation is not making a broadcast even when it can t resolve through other methods? P-NODE

Know all the TCP/IP utilities: arp, netstat, nbtstat, ipconfig, tracert, ping - don t worry about switches, just know what they are each used for.
Know the differences betweem primary, secondary, fowarding and cache-only dns servers.
Know when WINS, WINS proxy, DHCP and DHCP relay should be used.
Know the NETBIOS name resoluition modes (h, b, m, p).
Know how push and pull replication works on WINS.
Know how to configure DHCP pretty well.
Know the syntax of both LMHOSTS and HOSTS.
Know when to use WINS and when to use DNS.
MEMORIZE the subnet table!
Valid Subnets ===> Subnet Mask
254 ===> 255
126 ===> 254
62 ===> 252
30 ===> 248
14 ===> 240
6 ===> 224
2 ===> 192
There are up to 5 questions and are easy if you know the table.
Don t worry about fancy subnetting formulas, save your self some time.
Know how to calculate the # of hosts per subnet ((2^#bits)-2), i.e. 255.255.240.0,11111111.11111111.11110000.00000000 = # of zero-bits = 12