CCNA V3.1
Semestre 4 - Module 1

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

one

two

three

four

five


2 Refer to the graphic. Which command would allow the router to forward DHCP broadcasts from Host A to the DHCP server?

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ip helper-address

dhcp helper-address

dhcp relay-agent

dhcp-relay


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

Routing table updates

ICMP

FTP

BOOTP

SNMP


4 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


5 Given the accompanying graphic, which command would establish a group of 32 IP addresses that could be used to hide inside addresses from the Internet?

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ip nat pool Raleigh 10.0.0.32 10.0.0.63 netmask 255.255.255.224

ip nat pool Raleigh 10.0.0.32 10.0.0.63 netmask 255.255.255.240

ip nat pool Raleigh 171.11.10.32 171.11.10.63 netmask 255.255.255.224

ip nat pool Raleigh 171.11.10.32 171.11.10.63 netmask 255.255.255.240


6 Given the accompanying diagram, which commands are necessary to implement PAT on the Raleigh router? (Choose four.)

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access-list 10 permit 192.168.10.0 0.0.0.255

access-list 10 permit 171.11.0.0 0.0.255.255

ip nat inside source static 192.168.10.1 171.11.0.0

ip nat inside source list 10 interface S0 overload

ip nat outside

ip nat inside


7 A company was issued 207.48.12.8/29 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


8 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 10.0.0.0 network? (Choose two.)

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E0 interface address

S0 interface address

the access-list statement

the NAT outside interface

the NAT inside interface


9 What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco 806 broadband router?

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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


10 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


11 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.


12 Given the accompanying graphic, which statement would be applied to the S0 interface when configuring NAT on the Tampa router?

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ip nat inside

ip nat outside

ip pat inside

ip pat outside


13 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.


14 What is the default lease time for addresses assigned to clients through Easy IP?

twenty-four hours

forty-eight hours

one week

two weeks


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

DHCPDISCOVER

DHCPRELEASE

DHCPACK

DHCPREQUEST

DHCPOFFER


16 Given the accompanying graphic, which addresses could be assigned to traffic leaving S0 as a result of the statement ip nat pool Tampa 179.9.8.96 179.9.8.111 netmask 255.255.255.240? (Choose two.)

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10.0.0.125

179.9.8.95

179.9.8.98

179.9.8.101

179.9.8.112


17 Which configuration information might a DHCPOFFER include? (Choose three.)

IP address

DNS server address

DHCP binding

Lease time

DHCP database


18 Which of the following can be done to allow the users on the 10.0.0.0 network to communicate with the Web Server shown in the graphic? (Choose two.)

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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 128.56.0.0 to a private address.

Configure the Tampa router to use PAT.


19 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 processes.

Do nothing. The DHCP service is enabled by default during start up.


20 Given the accompanying debug output from a Cisco router, what kind of address is 10.10.10.3 with the IP identification number of 29855?

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inside local

inside global

outside local

outside global


21 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

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