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.
Optional:

IP router and should be made to dynamically update its routing table whenever routers are added and removed from the network.
That machine to be able to supply IP address to all the machines belonging to the three subnets.
Also you want a NT Workstation to be sent a trap message across the network.
>Configure the Server to act as router.

>Enable IP Forwarding.

>Implement the DHCP Server on the NT Server.

>Configure RIP.

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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


My tips:
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
So, ((2^12)-2)= 4,094 hosts.

Know how to use the route add command.

Know what lpr, lpd and lpq are for.

Know how to install a TCP/IP printer on NT.

Know how to configure a RAS server as a gateway to the internet and the clients on the network.

Learn the format of the LMHOSTS file(#PRE #DOM).

Know how WINS clients communicate with WINS servers and understand the WINS database replication process.

Be familiar with DHCP scope options and which can be overridden by the client. Understand how to make NT route packets, how to make NT dynamically update routes, and how to provide DHCP resiliency across routers.

Brush up on TCP/IP printing using lpr.

Be familiar with SNMP installation on NT.

Be familiar with Hosts IDs and Networks IDs.

Know which troubleshooting tools are used for which purpose.

I have a lot of questions where the SUBNET MASK was invalid, be careful...

Know when Network monitor is required and when Performance monitor is required!!!

Subnetting questions were easy once you understand subnetting and then understand the table.

Know troubleshooting tcpip connections, when subnet mask incorrect, when ip address incorrect, when default gateway incorrect.

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