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Bring Network Engineers To Life...!!
Some believe brain dumps are a way to cheat. But these
exams are tough and very specific. One to handle these
questions without at least one year network engineering
experience is kind of hard. Therefore for those who are
still studying, brain dumps are a very precious
resource.
Thank u DumpsMaster.com..!
(These are all I remember. Lots of new questions on RRAS,
DNS zones, Certificate Services & Remote Access
Policies. Got a few new questions that deal with lost
connectivity over routers. Be familiar with configuring
default gateways)
3. You install Network Monitor on a Windows 2000 Server
to analyze ISO and TP4 communications to the Microsoft
Exchange Server on your network. How should you
configure Network Monitor? (Choose two)
a. Change the Temporary Capture Directory.
b. Copy ISO.dll and TP4.dll to Netmon Subdirectory.
c. Copy ISO.DLL and TP4.DLL to the Netmon\Parsers
subdirectory.
d. Modify the Parser.ini. e. Modify the Netmon.ini.
Answer: C,D
63. You are the administrator of a Windows 2000 network
The network has four Windows 2000-based WINS servers
named NY1, NY2, Bos1, and Bos2. The network has
computers in two locations Boston and New York. The Bos
1 and Bos2 WINS servers are at the Boston location The
NY1 and NY2 WINS servers are at the New York location.
You want to configure the replication between the WINS
servers to accomplish the following goals: The NY1 and
NY2 WINS servers must replicate changes in the local
database to each other immediately following each new
registration or IP address change registration. The Bos1
and Bos2 WINS servers must replicate changes in the
local database to each other every 30 minutes. The
changes in the WINS database in either location should
be replicated to the other location every three hours.
How should you configure the WINS servers to accomplish
these goals? (Choose three)
a. Configure the WINS servers to enable burst handling.
Set the number of requests for burst handling to 1
b. Configure the NY1 and NY2 WINS servers as push/pull
partners of each other. Configure both WINS servers to
use persistent connections for push replication partners
Set the number of changes before replication to 1
c. Configure the Bos1 and Bos2 WINS servers as push/pull
partners of each other Specify a replication interval of
30 minutes
d. Configure the Bos1 and Bos2 WINS servers as push/pull
partners of each other Configure both WINS servers to
enable periodic database consistency checking every 30
minutes
e. Configure the NY1 and the Bos1 WINS servers as push
partners of each other. Configure both WINS servers to
update statistics every three hours
f. Configure the NY1 and the Bos1 WINS servers as
push/pull partners of each other Specify a replication
interval of three hours
Answer: B,C,f
By default, persistent connections are not used and
replication with partners does not occur except at
configured intervals. This default can be changed, but a
specified minimum number of update changes to WINS must
be set first. Without the use of persistent connections,
a minimum value of 20 for Number of changes in version
ID before replication is required. With persistent
connections enabled for push replication, the default
value of 0 causes the local WINS server to send a push
trigger and notify its push partners each time an update
occurs. An update is defined as an incremental increase
to the highest version ID in the local WINS database for
records the server owns. This can occur when a new name
record is registered and added locally or if an IP
address change occurs for an existing record. With
persistent connections, you can reduce the update
frequency for push notifications, by specifying a
non-zero value instead. If a value greater than zero is
used, WINS only starts push replication when the highest
ID for records it owns has increased an equal number of
times.
76. Your WIn2000 network has 3 subnets, A, B, and c. A
is at the corporate headquarters. B is used to connect a
router at the HQ office to a router at the remote office
(SubnetC). Two Win2000 servers are used as routers:
RouterAB connects SubnetA and SubnetB. RouterBC connects
SubnetB and SubnetC. You configure RouterAB and RouterBC
to use demand-dial connections.
What two steps must you take to allow a client commuter
on SubnetC to access a share on a client on SubnetA?
(choose two)
a. Configure TCP/IP filter on the RouterAB demand-dial
interface
b. Configure TCP/IP filter on the RouterBC demand-dial
interface
c. Configure a static route for SubnetC on the
demand-dial interface of RouterAB
d. Configure a static route for SubnetA on the
demand-dial interface of RouterBC
e. Configure a static route for SubnetB on the
demand-dial interface of RouterBC
f. Configure a static route for SubnetB on the
demand-dial interface of RouterAB
Answer:C,D
84. You are the administrator of your company's network.
The network consists of 10 Windows 2000 Server
computers, 100 Windows 2000 Professional computers, and
150 Windows NT Workstation computers. For workgroup
collaboration and document sharing, all client computers
have file and print sharing services enabled. You are
using DHCP to automate the TCP/IP configuration of all
client computers
You want to accomplish the following goals:
All client computers will be able to be located on the
network by the network's fully qualified domain name. A
(host) records for all client computers will be
automatically added to the DNS zone files. PTR (pointer)
records for reverse name lookup for all client computers
will be automatically added to the DNS zone files A
records and PTR records will be automatically removed
from the DNS zone files when the DHCP lease expires
You take the following actions:
Configure the DHCP server to always update client
computer information in DNS Configure the DHCP server to
discard forward lookups when the lease expires Configure
the DHCP server to update DNS for client computers that
do not support dynamic updates Configure the DHCP scope
to configure the domain name for all DHCP client
computers.
Which result or results do these actions produce?
(Choose all that apply)
a. All client computers are able to be located on the
network by the network's fully qualified domain name
b. A records for all client computers are automatically
added to the DNS zone files
c. PTR records for reverse name lookup for all client
computers are automatically added to the DNS zone files
d. A records and PTR records are automatically removed
from the DNS zone files when the DHCP lease expires
Answer:A,D
. Your network uses an address of 172.30.0.0/16. Your
initially will need 25 subnets with a minimum of 1,000
hosts per subnet.. The projected growth for next year
though, indicates a need for at least 55 subnets. What
subnet mask should you configure to meet these needs?
A. 255.255.240.0
B. 255.255.248.0
C. 255.255.252.0
D. 255.255.254.0
E. 255.255.255.0
Answer: C
Original 900 dump had same answer, but referred to 25
subnets
Explanation: Max subnets = 62 Hosts per subnet = 1022
Subnet ID = 172.30.0.0 Subnet Host range = 172.30.0.1 -
172.30.3.254 Broadcast = 172.30.3.255
5. To centralize administration you implement a Remote
Authentication Dial-In Service (RADIUS) server. Each of
your branch offices will support their own Routing and
Remote Access Server. You remove the default remote
access policy.
What should you do to implement one company policy that
requires all dial-up communications to use 40-bit
encryption, and require secure communications? (Choose
two)
a. Create one remote access policy on each Routing and
Remote Access server.
b. Create one remote access policy on the RADIUS server.
c. Set encryption to Basic in the remote access policy.
d. Set encryption to Strong in the remote access policy
or policies.
e. Enable the Secure Server IPSec policy on the RADIUS
server.
f. Enable the Server IPSec policy on the RADIUS server.
Answer: B,C
IAS is Microsoft's implementation of a RADIUS Server. It
centralizes authentication, authorization and
administration of RAS (NAS). As such, Remote Access
Policies (RAPs) are centralized as well. For encryption,
the default setting allows Microsoft Point-to-Point
Encryption (MPPE) when requested by the remote access
client. To force encryption for dial-up networking
connections, you need to modify the encryption settings
on the policy profile to require encryption. For dial-up
networking connections, clear the No encryption option
and select the following options on the Encryption tab
on the properties of the remote access policy profile: -
Basic You should use this option when communicating with
older Microsoft dial-up networking clients who are
connecting from outside North America. This option uses
Microsoft Point-to-Point Encryption (MPPE) and a 40-bit
encryption key. - Strong You should use this option when
communicating with Windows 2000 and Windows 98 dial-up
networking clients who are connecting from outside North
America. This option uses MPPE and a 56-bit encryption
key. - Strongest You should use this option when
communicating with dial-up networking clients who are
connecting from inside North America. This option uses
MPPE and a 128-bit encryption key and is only available
on North American versions of Windows 2000.
6. You administer your company's Windows 2000 network.
Your network consists of 5 Windows 2000 Server
computers, 300 Windows 2000 Professional computers, and
10 UNIX servers. One of your Windows 2000 Server
computers is your DNS server. The DNS zone is configured
as an Active Directory integrated zone. The DNS zone is
also configured to allow dynamic updates.
Users report that although they can access the Windows
2000 computers by host name, they cannot access the UNIX
servers by host name.
What should you do?
a. Manually enter A (host) records for the UNIX servers
in the zone database
b. Manually add the UNIX servers to the Windows 2000
domain
c. On the DNS server, manually create a HOSTS file that
contains the records for the UNIX servers
d. Configure a UNIX computer to be a DNS server in a
secondary zone
Answer: A
Since Dynamic Updates is configured, the answer seems
simple. The Unix Servers aren't able to send the Client
FQDN (81) option which triggers the dynamic update.
Windows 2000 clients by default, can register both A and
PTR Records dynamically. This question does not mention
a Windows 2000 DHCP Server, which can be enabled to
update DNS Records (A and PTR) for clients that do not
support Dynamic Updates.
12. Your network consists of Windows 2000 Server
computers, Windows 2000 Professional computers, and one
NetWare server. Administrators must have complete access
to the Sys volume on the NetWare server. All other users
should have read only access. Configuring Gateway
Service for NetWare on a Windows 2000 Server computer.
What should you do to configure the appropriate access
to the NetWare server? (Choose two)
a. Create an NT Gateway group on the 2000 server.
b. Add the NT Gateway User Account to the NTGateway
Group on the Netware Server
c. Grant Full Control permission to Admins and Read
permission to users on the Windows2000 Server
d. Grant Full Control Permission to Admins and Read
permission for users on the Netware Server
Answer: B,C
page 644 internetworking guide RESKIT 2000 *create a
Unique user account on Netware *create a Netware Group
account named NTGATEWAY *Make the Netware user account
member of the NTGATEWAY group account
Creating a gateway Before you can create a gateway to
NetWare resources on a computer running Windows 2000
Server: - The NetWare server must have a group named
NTGATEWAY with the necessary rights for the resources
that you want to access. - You must have a user account
on the NetWare network with the necessary rights for the
resources that you want to access. - The NetWare user
account you use must be a member of the NTGATEWAY group.
The NetWare user account you use to enable gateways can
be either a Novell Directory Services (NDS) account or a
bindery account. If the server will have gateways to
both NDS resources and resources on servers running
bindery security, the user account must be a bindery
account. (This account can connect to NDS resources
through bindery emulation.) If you create gateways only
to NDS resources, the account can be an NDS account.
Creating a gateway is a two-step process: *. First, you
enable gateways on the server running Windows 2000
Server. When you enable a gateway, you must type the
name and password of the user account that has access to
the NetWare server and is a member of the NTGATEWAY
group on that NetWare server. You need to do this only
once for each server that will act as a gateway. For
each volume or printer to which you want to create a
gateway, you activate a gateway. When you activate a
gateway, you specify the NetWare resource and a share
name that Microsoft client users will use to connect to
the resource. To activate a gateway for a volume, you
can use Gateway Service for NetWare (in Control Panel).
To activate a gateway for a printer, you can use the Add
Printer wizard. If you are activating a gateway to an
NDS resource, and the gateway user account is a bindery
user account, specify the resource that uses the bindery
context name. If you are using a NDS user account, and
you do not plan on also creating gateways to bindery
resources, specify the NDS resource name. Security for
gateway resources is provided on two levels: - On the
computer running Windows 2000 Server and acting as a
gateway, you can set share-level permissions for each
resource made available through the gateway. - On the
NetWare file server, the NetWare administrator can
assign trustee rights to the user account that is used
for the gateway or to the NTGATEWAY group. These rights
are enforced for all Microsoft client users who access
the resource through the gateway. There is no auditing
of gateway access.
Reason & Source : Windows 2000 Resource Kit
Internetworking Guide Preparing the NetWare Server for
Gateway Service for NetWare: To establish connectivity
to NetWare resources for a Windows 2000 Server-based
computer running Gateway Service for NetWare, you need
to create user and group accounts. You must first create
a unique user account on the NetWare network to serve as
the NetWare interface for the Windows 2000 Server-based
gateway computer running Gateway Service for NetWare.
The password for the NetWare user account must be
identical to the password used to enable the Windows
2000 Server gateway, described in "Configuring a Gateway
on the Windows 2000 Server-Based Computer" later in this
chapter. You must also create a unique NetWare group
account named NTGATEWAY. You must create this account on
the NetWare network. The NTGATEWAY group account acts as
a common access point to NetWare resources for all
Windows 2000 Server gateway users; therefore, you must
set appropriate trustee access rights on the NTGATEWAY
group account for all the NetWare resources that the
group must access. Finally, make the NetWare user
account that you created a member of the NTGATEWAY group
account.
Preparing the NetWare Server for Client Service for
NetWare: To establish connectivity to NetWare resources
for a Windows 2000 Professional computer running Client
Service for NetWare, you need to create a unique user
account on the NetWare network and set the necessary
rights for the user's resource needs. You or the user
must also synchronize the passwords.
13. You are the administrator of your domain. You have
client computers evenly distributed across five sites.
Atlanta.xco.com recently upgraded its two DNS servers
that service the sub domain. You suspect the upgrade has
resulted in an incorrect configuration of your zone
delegation.
What should you do to verify proper zone delegations?
a. Use System Monitor to confirm that the counters for
the DNS zone transfer failure are zero.
b. Use System Monitor to confirm that the counters for
the DNS recursive query are zero.
c. Run the nslookup -query type=ns atlanta.xco.com
command with the server option set to query the
atalanta.xco.com server. Ping the records displayed in
the output of the nslookup command.
d. Run the nslookup -ls -d atlanta.xco.com command. Ping
the records displayed in the output of the nslookup
command.
Answer: C
15. To allow Internet access through a dial-up
connection to Server A, you install NAT routing
protocol. All computers in your network use Automatic
Private IP addressing. There is no DHCP server in the
network. Server A is configured as below:
LAN interface has an IP address of 10.65.3.1 and a
subnet mask of 255.255.255.0. NAT automatically assigns
IP addresses of 10.65.3.2 through 10.65.3.60 to
computers on the private interface. NAT uses a
demand-dial interface named Dial ISP to connect to the
ISP. The demand-dial interface uses an address pool of
207.46.179.33 through 207.46.179.36. The routing table
has a default static route for the public interface.
What configuration should you use for the static route
for the public interface?
a. Interface: Local Network Connection Destination:
207.46.179.44 Network Mask: 255.255.255.255 Gateway:
0.0.0.0
b. Interface: Local Network Connection Destination:
10.65.3.0 Network Mask: 255.255.255.0 Gateway: 10.65.3.1
c. Interface: Dial ISP Destination: 0.0.0.0 Network
Mask: 0.0.0.0 Gateway: None
d. Interface: Local Network Connection Destination:
207.46.174.32 Network Mask: 255.255.255.240 Gateway:
207.46.179.32
Answer: C
Reason: Deploying network address translation To deploy
network address translation for a small office or home
office network, you need to configure: 1 The network
address translation computer. 2 Other computers on the
small office or home network. Configuring the network
address translation computer To configure the network
address translation (NAT) computer, you can complete the
following steps: 1 Install and enable the Routing and
Remote Access service. In the Routing and Remote Access
Server Setup wizard, choose the options for Internet
connection server and to set up a router with the
Network Address Translation (NAT) routing protocol.
After the wizard is finished, all of the configuration
for Network Address Translation (NAT) is complete. You
do not need to complete steps 2 through 8. If you have
already enabled the Routing and Remote Access service,
then complete steps 2 through 8 as needed. 2 Configure
the IP address of the home network interface. For the IP
address of the LAN adapter that connects to the home
network, you need to configure the following: 1 IP
address: 192.168.0.1 2 Subnet mask: 255.255.255.0 3 No
default gateway Note 4 The IP address in the preceding
configuration for the home network interface is based on
the default address range of 192.168.0.0 with a subnet
mask of 255.255.255.0, which is configured for the
addressing component of network address translation. If
you change this default address range, you should change
the IP address of the private interface for the network
address translation computer to be the first IP address
in the configured range. Using the first IP address in
the range is a recommended practice, not a requirement
of the network address translation components. 3 Enable
routing on your dial-up port. If your connection to the
Internet is a permanent connection that appears in
Windows 2000 as a LAN interface (such as DDS, T-Carrier,
Frame Relay, permanent ISDN, xDSL, or cable modem) or if
you are connecting your computer running Windows 2000 to
another router before the connection to the Internet,
and the LAN interface is configured with an IP address,
subnet mask, and default gateway either statically or
through DHCP, skip to step 6 4 Create a demand-dial
interface to connect to your Internet service provider.
You need to create a demand-dial interface that is
enabled for IP routing and uses your dial-up equipment
and the credentials that you use to dial your Internet
service provider (ISP). Create a default static route
that uses the Internet interface. **** For a default
static route, you need to select the demand-dial
interface (for dial-up connections) or LAN interface
(for permanent or intermediate router connections) that
is used to connect to the Internet. The destination is
0.0.0.0 and the network mask is 0.0.0.0. For a
demand-dial interface, the gateway IP address is not
configurable. 5 Add the NAT routing protocol. 6 Add your
Internet and home network interfaces to the NAT routing
protocol. 7 Enable network address translation
addressing and name resolution. Note The network address
translation addressing feature only assigns addresses
from a single range that corresponds to a single subnet.
If multiple home network LAN interfaces are added to the
NAT routing protocol, a single subnet configuration
(where all LAN interfaces are connected to the same
network) is assumed. If the LAN interfaces correspond to
different networks, connectivity between clients on
different networks who receive addresses from the
network address translation computer may not be
possible. Configuring other computers on the small
office or home network You need to configure the TCP/IP
protocol on the other computers on the small office or
home network to obtain an IP address automatically, and
then restart them. When the computers on the home
network receive their IP address configuration from the
network address translation computer, they are
configured with: 1 IP address (from the address range of
192.168.0.0 with a subnet mask of 255.255.255.0). 2
Subnet mask (255.255.255.0). 3 Default gateway (the IP
address of the interface for the network address
translation computer on the small office or home
network). 4 DNS server (the IP address of the interface
for the network address translation computer on the
small office or home network).
25. You are the administrator of your company's network.
Your Windows 2000 Server computer named Srv2 cannot
communicate with your UNIX server named Srv1 Srv2 can
communicate with other computers on your network. You
try to ping Srv1, but you receive the following error
message. "Unknown host Srv1." You create an A (host)
record that has the correct name and IP address.
However, when you try to ping Srv1 again, you receive
the same error message
What should you do to resolve this problem?
a. Restart the DNS server
b. Clear the DNS Server Cache
c. Run the ipconfig Iregisterdns command on Srv2
d. Run the ipconfig /flushdns command on Srv2
Answer: D
Ipconfig/flushdns Purges the DNS Resolver cache. The
IPConfig /flushdns command provides you with a means to
flush and reset the contents of the DNS client resolver
cache. During DNS troubleshooting, if necessary, you can
use this procedure to discard negative cache entries
from the cache, as well as, any other dynamically added
entries. Although the ipconfig command is provided for
earlier versions of Windows, the /flushdns option is
only available for use at computers running Windows
2000. The DNS Client service must also be started.
37. You are the administrator of your companies network.
You want to configure remote administration for your
network. You install Routing and Remote Access on a
Windows 2000 domain controller.
You want to accomplish the following goals:
a- Only administrators have dial-up access
b- Dial-up connections are accepted only between 4.00 PM
and 7.00 A.M
c- Connections are forcibly disconnected after 20
minutes of inactivity
d- All connections encrypt all communications e-
Connections are limited to 60 minutes
You take the following actions
Set the level or levels of encryption to No Encryption
and Basic. Add Domain Admins to the Windows Group Policy
condition. Configure the rest of the remote access
policy as shown in the exhibit (Click the Exhibit
button) Configure the remote access policy Disconnect if
idle for 60 minutes Configure the remote access policy
Restrict maximum session time 20 minutes Configure the
remote access policy Restrict access to the following
days and times to Sun 07:00-16:00 Mon 07:00-16:00 Tue
07:00-16:00 Wed 07:00-16:00 Thu 07:00-16:00 Fri
07:00-16:00 Sat 07:00-16:00
What result or results do these actions produce? (Choose
all that apply)
a. Only administrators have dial-up access
b. Dial-up connections are accepted only between 4.00 PM
and 7.00 A.M
c. Connections are forcibly disconnected after 20
minutes of inactivity
d. All connections encrypt all communications
e. Connections are limited to 60 minutes
Answer: A
39. You are the administrator of your company's network
your company has branch offices in New York and Paris.
Because each branch office will support its own Routing
and Remote Access server, you implement a Remote
Authentication Dial-In User Service (RADIUS) server to
centralize administration you remove the default remote
access policy. You need to implement one company policy
that requires all dial-up communications to use 40-bit
encryption. You want to configure your network to
require secure communications by using the least amount
of administrative effort.
What should you do? (Choose two)
a. Create one remote access policy on each Routing and
Remote Access server
b. Create one remote access policy on the RADIUS server
c. Set encryption to Basic in the remote access policy
or policies
d. Set encryption to Strong in the remote access policy
or policies
e. Enable the Secure Server IPSec policy on the RADIUS
server
f. Enable the Server IPSec policy on the RADIUS server
Answer: B,C
40. You are the network administrator for a windows 2000
domain. Client computers in your domain are Windows 98
computers or Windows 2000 computers. Clients in your
domain use a client/server application that accesses
files from one of the NT4.0 server computers. Users are
reporting that they cannot connect to this Windows NT
server computer. The Windows NT 4.0 server computer can
successfully connect to the Windows 2000 computers. What
should you do?
a. On the Windows NT 4.0 computer run "IPConfig
/register DNS" command
b. On the DHCP server select Enable Updates for DNS
Clients That Do Not Support Dynamic Update checkbox c.
On the DNS server select Enable Updates for DNS Clients
That Do Not Support Dynamic Update checkbox d. Run the "Ipconfig
/flushdns" command on all of the Win2000 computers
Answer: B
Dynamic update enables DNS client computers to register
and dynamically update their resource records with a DNS
server whenever changes occur. This reduces the need for
manual administration of zone records, especially for
clients that frequently move or change locations and use
DHCP to obtain an IP address. Dynamic updates can be
sent for any of the following reasons or events: An IP
address is added, removed, or modified in the TCP/IP
properties configuration for any one of the installed
network connections. An IP address lease changes or
renews with the DHCP server any one of the installed
network connections. For example, when the computer is
started or if the IPConfig /renew command is used. The
IPConfig /Register DNS command is used to manually force
a refresh of the client name registration in DNS. At
startup time, when the computer is turned on.
55. Administrators of your Sales organizational unit
want to be able to manage EFS for the users in their
department. These administrators belong to a group named
Sales Admin which has full administrative privileges to
the OU. You install an Enterprise Certificate Authority
for use by the entire company. However, the
administrators of the Sales department notify you that
they are unable to create a Group Policy that allows
them to manage EFS for their department. What should you
do? (Choose two)
a. Grant the enroll permission to the Sales Admin group
for the Recovery Certificate Template
b. Add the Sales Admin group's certificate to the CA's
RCL
c. Add a new policy setting for an EFS Recovery Agent
certificate in the Certification Authority console for
the CA.
d. Install a Enterprise Subordinate CA on one of the
computers in the Sales OU
Answer: A, C
93. Your company's portable computers are frequently
utilized by users at locations that are not on the
network. Two DHCP servers provide IP configuration to
your Windows 2000 Professional clients. You want to
configure different lease times for the desktop
computers and portable computers. Desktop clients should
use the default lease time. Portable computes should use
a lease time of four hours. What should you do? (Choose
three)
a. On the laptop computers, set the DHCP class ID
setting to Windows 2000 laptop computers?
b. On the laptop computers set the DHCP vendor class ID
setting to Windows 2000 option.
c. On the laptop computers manually configure the DHCP a
lease time of 4 hours and all other TCP/IP parameters to
be configured by the DHCP servers
d. On the DHCP server, configure the scope so that it
has an empty lease duration value.
e. On the DHCP servers, define a new user class that has
the ID specified on the laptop computers.
f. On the DHCP servers, configure the scope options to
use a lease time of four hours for the laptop computers.
Answer: A, E, F
To create a new user or vendor class 1 Open DHCP 2 In
the console tree, click the applicable DHCP server.
Where? 1 DHCP 2 Applicable DHCP server 3 On the Action
menu chooses one of the following: 1 to create a new
user class, click Define User Classes. 2 To create a new
vendor class, click Define Vendor Classes. 4 Clicks Add.
5 In New Class, type the required information.
101. Your network consists of two locations containing a
Win2000 Server and 45 Win2000 Professional computers.
The two servers are Win2000-based routers. Although the
two routers are not connected directly to each other,
they are connected by a third router. This third router
is administered by a different company. Users in both
locations want to provide multicast based datacasting of
information to the other site.
You add the Internet Group Management Protocol (IGMP) to
both servers. However, the third router does not support
multicast forwarding or routing. How should you
configure the network to allow IP multicast traffic to
pass between the two locations? (Choose three)
a. Create an IP-in-IP interface between the servers
b. Assign the interface to the IGMP routing protocol
c. Run the interface in IGMP proxy mode
d. Run the interface in IGMP point to point mode
e. Run the interface in IGMP Router mode.
f. Create a point to point interface between the 2
servers
Answer: A, B, C
IP-in-IP tunnels are used to forward information between
endpoints acting as a bridge between portions of an IP
inter-network that have differing capabilities. A
typical use for IP-in-IP tunnels is the forwarding of IP
multicast traffic from one area of the intranet to
another area of the intranet, across a portion of the
intranet that does not support multicast forwarding or
routing. With IP-in-IP tunneling, an IP datagram is
encapsulated with another IP header addressed to and
from the endpoints of the IP-in-IP tunnel, as shown in
Figure 4.5. An IP-in-IP tunnel is indicated by setting
the IP Protocol field to 4 in the outer IP header. For
more detailed information about IP-in-IP tunneling, see
RFC 1853.
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