3.1 CCNA 4 - Module 1


Which of the following can be done to allow the users on the network to communicate with the Web Server
shown in the graphic? (Choose two.)
Configure the Miami router to use NAT.
Configure the Web Server with a private address.
Configure the Miami router to use PAT.
Change the Internet link IP address of to a
private address.
Configure the Tampa router to use PAT.

What is the default number of pings issued by a DHCP
server to a pool address before sending the DHCPOFFER
to a client?

What is the purpose of the DHCPDECLINE message?
If the DHCP client received multiple DHCPOFFERs,
it uses the DHCPDECLINE to refuse the offers it
does not use.
If the DHCP server sends an IP configuration update that
the DHCP client does not need, it uses the DHCPDECLINE
to refuse the information.
The DHCP server uses the DHCPDECLINE message to
refuse a DHCP client's request for IP configuration information.
If the DHCP client detects that the address supplied by the
DHCP server is in use on the network, it uses the
DHCPDECLINE to refuse the offer.

Which configuration parameters are provided by the dynamic
allocation process of DHCP? (Choose three.)
Gateway address
DNS server
DHCP Server
Subnet mask
Key server
ARP server


What is the purpose of the command marked with an
arrow shown in the partial configuration output of a
Cisco 806 broadband router?
defines which addresses are allowed out of the router
defines which addresses are allowed into the router
defines which addresses can be translated
defines which addresses are assigned to a NAT pool


Given the accompanying debug output from a Cisco router,
what kind of address is with the IP identification
number of 29855?
inside local
inside global
outside local
outside global


Given the accompanying graphic, which statement would be
applied to the S0 interface when configuring NAT on the
Tampa router?
ip nat inside
ip nat outside
ip pat inside
ip pat outside


Given the accompanying graphic, which addresses could be
assigned to traffic leaving S0 as a result of the statement
ip nat pool Tampa netmask
? (Choose two.)


Refer to the exhibit. Which command would establish a
group of 30 IP addresses that could be used to hide inside
addresses from the Internet?
ip nat pool Raleigh netmask
ip nat pool Raleigh netmask
ip nat pool Raleigh
ip nat pool Raleigh


Given the accompanying diagram, which commands
are necessary to implement PAT on the Raleigh router?
(Choose four.)
access-list 10 permit
access-list 10 permit
ip nat inside source static
ip nat inside source list 10 interface S0 overload
ip nat outside
ip nat inside

What is true regarding the differences between NAT and PAT?
PAT uses the word "overload" at the end of the access-list
statement to share a single registered address.
Static NAT allows an unregistered address to map to
multiple registered addresses.
Dynamic NAT allows hosts to receive the same global
address each time external access is required.
PAT uses unique source port numbers to distinguish
between translations.

Which of the following are broadcasts sent by a client to a
DHCP server? (Choose two.)

In addition to assigning addresses from predefined pools,
which other services can a DHCP server offer? (Choose three.)
DNS server addresses
domain names
global IP assignments
NAT translations
WINS server addresses

Users are complaining that they cannot attach to network
resources. A technician has confirmed that clients are not
properly receiving IP configuration information through the
DHCP process. The network administrator wants to watch the
DHCP process while the technician tries to release and renew
addresses on the clients. Which command would the network
administrator use to monitor the process of address allocation?
show ip dhcp server statistics
show ip dhcp binding
debug ip dhcp server events
debug ip dhcp binding


Refer to the graphic. Which command would allow the router to
forward DHCP broadcasts from Host A to the DHCP server?
ip helper-address
dhcp helper-address
dhcp relay-agent

What is the default lease time for addresses assigned to clients
through Easy IP?
twenty-four hours
forty-eight hours
one week
two weeks


The Raleigh router shown in the diagram is configured with PAT.
Which of the following must be changed if the private network is
migrated to a network? (Choose two.)
E0 interface address
S0 interface address
the access-list statement
the NAT outside interface
the NAT inside interface

A network administrator needs to configure a router to offer
DHCP services. Assuming the router is operating with factory
defaults and the IOS supports DHCP, what must be done to
start the DHCP service?
Use the global configuration command service dhcp.
Use the privileged command service dhcp start.
Use the start service dhcp command during the setup
Do nothing. The DHCP service is enabled by default during
start up.

Which of the following traffic types are supported by
Cisco IOS NAT? (Choose two.)
Routing table updates

Which configuration information might a DHCPOFFER include?
(Choose three.)
IP address
DNS server address
DHCP binding
Lease time
DHCP database

A company was issued as its registered
address from its ISP. Which of the following is a solution that
will allow Internet access to 300 employees simultaneously?
VLSM to further subnet the registered address and create
more IP addresses
normal subnetting on the Class C network and address
the host
RFC 1918 and port address translation
this is an impossible scenario because there are not
enough addresses