CSIA 250 - Chapter 8 Questions & Answers

CSIA 250 - Chapter 8 Questions &
Answers
You have a TCP/IP network with 50 hosts. There have been inconsistent
communication problems between hosts. You run a protocol analyzer and discover that
two hosts have the same IP address assigned.

Which protocol can you implement on your network to help prevent problems such as
this? - answer DHCP

Which of the following statements about the dynamic host configuration protocol
(DHCP) are true? (Select two.) - answer * It can deliver other configuration
information in addition to IP addresses.
* A DHCP server assigns addresses to requesting hosts.

You are setting up a new branch office for your company. You would like to implement
solutions to provide the following services:

* Hosts should be able to contact other hosts using names such as
server1.westsim.com.
* IP address assignment should be centrally managed.

Which services should you implement on your network to meet the requirements?
(Select two.) - answer * DHCP
* DNS

You have a DHCP server on your network. Which of the following is the correct order of
DHCP messages exchanged between a client and server when the client obtains an IP
address? - answer DHCPDISCOVER, DHCPOFFER, DHCPREQUEST, DHCPACK

You have a small network as shown in the Exhibit.

You configure DHCP on Router1 to provide IP addresses to all hosts connected to
SwitchA. Following the configuration, you verify that Wrk1 has received an IP address
from the DHCP service. Wrk1 can ping every host on the subnet, but cannot
communicate with any hosts connected to Switch B or on the Internet.

What should you do? - answer Configure the DHCP server to deliver the default
gateway address along with the IP address.

You have a small network connected to the Internet as shown in the Exhibit.

,Router1 will provide NAT services to all hosts on the private network, and DHCP
services to hosts connected to SubnetA.

Srv1 is located on SubnetA. You want to make sure that this server is assigned the
same IP address every time it boots, but you still want to centrally manage the address
that it uses.

What should you do? - answer Configure a DHCP binding for Srv1.

You want to configure DHCP on your Cisco router to provide automatic IP address
assignment to a single subnet. You will use 192.168.12.0/27 for the subnet address.

The router interface has been configured with an IP address of 192.168.12.1.
Additionally, you want to make sure that a specific server, called SrvFS, always gets the
last IP address on the subnet as its IP address.

How should you configure DHCP on the router? (Select two.) - answer * Create a
DHCP binding for address 192.168.12.30
* Create an address pool with start address of 192.168.12.2 and end address
192.168.12.30

You have configured DHCP on your router. A partial configuration is shown below:

hostname RouterA
!
interface FastEthernet0/0
ip address 192.168.11.1 255.255.255.0
speed auto
duplex auto
ip access-group 1 in
!
interface FastEthernet0/1
ip address 192.168.12.1 255.255.255.0
speed auto
duplex auto
!
ip dhcp excluded-address 192.168.11.1 192.168.11.50
ip dhcp excluded-address 192.168.12.1 192.168.12.50
!
ip dhcp pool 0
network 192.168.11.0 255.255.255.0
domain-name westsim.com
dns-server 192.168.11.2 192.168.12.2
default-router 192.168.11.1
!
access-list permit 192.168.11.0 0.0.0.255

, !

Srv2 is a host connected to the Fa0/1 interface of RouterA. When it boots, it does not
receive an IP address from the DHCP service. What should you do? - answer Add a
DHCP pool for network 192.168.12.0/24

You have configured DHCP on your router. A partial configuration is shown below:

hostname RouterA
!
interface FastEthernet0/0
ip address 192.168.11.1 255.255.255.0
speed auto
duplex auto
ip access-group 1 in
!
interface FastEthernet0/1
ip address 192.168.12.1 255.255.255.0
speed auto
duplex auto
!
ip dhcp excluded-address 192.168.11.1 192.168.11.50
ip dhcp excluded-address 192.168.12.1 192.168.12.50
!
ip dhcp pool 0
network 192.168.11.0 255.255.255.0
domain-name westsim.com
dns-server 192.168.11.2 192.168.12.2
default-router 192.168.11.1
!
ip dhcp pool 1
network 192.168.12.0 255.255.255.0
domain-name westsim.com
dns-server 192.168.12.2 192.168.11.2
default-router 192.168.12.5
!
ip dhcp pool 2
host 192.168.12.166
hardware-address 02c7.f800.0422
!
access-list permit 192.168.11.0 0.0.0.255
!

Srv2 is a host connected to the Fa0/1 interface of RouterA. Its MAC address is
02c7.f800.0422. Srv2 is configured to use DHCP to - answer 192.168.12.166