CCNA 200-301 Domain 4: IP Services Exam #1 Questions with
Correct Answers
Which of the following is a benefit of using network address translation (NAT)? -
✔✔NAT provides a measure of network security.
You have a small network as shown. Router2 is connected to the internet through
a fiber optic FastEthernet connection and will be configured with NAT to provide
internet connectivity to your private network.
What type of address would you assign to the Fa0/1 interface on Router2? -
✔✔Outside Global
You are designing a new network that will support 6,000 computers. You only
have eight registered IP addresses that can be allocated to the employees for
external network communication, so you decide to implement NAT and share the
addresses. You want all of these computers to be able to access the internet at
the same time if necessary.
Which method of NAT translation should you implement? - ✔✔Overloading
You have a small network connected to the internet as shown.
Which of the following statements is true? (Select two.) - ✔✔The router must be
configured for NAT for Srv1 to communicate on the internet.
Internet hosts can reach Srv2 without NAT.
You have a small business network with a single subnet connected to the internet
through a Cisco router (RouterA). IP addresses are assigned as shown.
,A browser session on the workstation tries to connect to the www.westsim.com
web server.
What IP address and port number will the web server use as the destination
address when responding to the workstation's request? - ✔✔IP address
199.67.111.89 and a dynamic port assigned by RouterA
You have a small business network with a single subnet connected to the internet.
Your ISP has assigned your router an IP address of 199.211.77.5 for its serial
interface. You have chosen to use a network address of 172.15.1.0/24 on your
private network.
You use the SDM interface to configure basic NAT on the router with a single
default route to the ISP. What is the most likely result of this configuration? -
✔✔Your network has internet connectivity, but some websites might be
unreachable.
You have an office network connected to the internet as shown. The network has
three subnets, all with client computers.
The Web1 server on Subnet1 hosts a small website used for traveling employees.
Employees must be able to contact the web server from the internet. All other
hosts on the private network need to have full internet connectivity for browsing
the web and sending email.
On which routers should you configure NAT? - ✔✔RouterC
, You are the network administrator for a company that has a small block of
registered IP addresses ranging from 24.1.2.32 to 24.1.2.47. You want to assign
these addresses to a dynamic pool in NAT. Which command should you use? -
✔✔ip nat pool net-1 24.1.2.32 24.1.2.47
You want to configure NAT so that packets from all hosts on network 192.168.2.0
will share the registered IP address 24.1.2.8 as shown. You have already identified
the inside and outside NAT interfaces on the router. Which of the following
command options will translate all inside host addresses to the single registered
IP address? - ✔✔access-list 1 permit 192.168.2.0 0.0.0.255
ip nat inside source list 1 interface serial 0 overload
Which of the following statements are true regarding NTP when implemented on
Cisco devices? (Select two.) - ✔✔NTP runs over UDP port 123.
When NTP is enabled, NTP packets are received on all interfaces.
You check the time on a router and find that it is off by several minutes. To fix this
issue, you configure NTP on the router to get time from a Stratum 2 time provider
on the internet.
The time difference is large, and it is taking some time for NTP to synchronize the
time on the local router. To speed synchronization, you use NTP commands to
immediately synchronize the time on the router with the time on the time
provider.
Which NTP term best describes this process? - ✔✔Slam
Correct Answers
Which of the following is a benefit of using network address translation (NAT)? -
✔✔NAT provides a measure of network security.
You have a small network as shown. Router2 is connected to the internet through
a fiber optic FastEthernet connection and will be configured with NAT to provide
internet connectivity to your private network.
What type of address would you assign to the Fa0/1 interface on Router2? -
✔✔Outside Global
You are designing a new network that will support 6,000 computers. You only
have eight registered IP addresses that can be allocated to the employees for
external network communication, so you decide to implement NAT and share the
addresses. You want all of these computers to be able to access the internet at
the same time if necessary.
Which method of NAT translation should you implement? - ✔✔Overloading
You have a small network connected to the internet as shown.
Which of the following statements is true? (Select two.) - ✔✔The router must be
configured for NAT for Srv1 to communicate on the internet.
Internet hosts can reach Srv2 without NAT.
You have a small business network with a single subnet connected to the internet
through a Cisco router (RouterA). IP addresses are assigned as shown.
,A browser session on the workstation tries to connect to the www.westsim.com
web server.
What IP address and port number will the web server use as the destination
address when responding to the workstation's request? - ✔✔IP address
199.67.111.89 and a dynamic port assigned by RouterA
You have a small business network with a single subnet connected to the internet.
Your ISP has assigned your router an IP address of 199.211.77.5 for its serial
interface. You have chosen to use a network address of 172.15.1.0/24 on your
private network.
You use the SDM interface to configure basic NAT on the router with a single
default route to the ISP. What is the most likely result of this configuration? -
✔✔Your network has internet connectivity, but some websites might be
unreachable.
You have an office network connected to the internet as shown. The network has
three subnets, all with client computers.
The Web1 server on Subnet1 hosts a small website used for traveling employees.
Employees must be able to contact the web server from the internet. All other
hosts on the private network need to have full internet connectivity for browsing
the web and sending email.
On which routers should you configure NAT? - ✔✔RouterC
, You are the network administrator for a company that has a small block of
registered IP addresses ranging from 24.1.2.32 to 24.1.2.47. You want to assign
these addresses to a dynamic pool in NAT. Which command should you use? -
✔✔ip nat pool net-1 24.1.2.32 24.1.2.47
You want to configure NAT so that packets from all hosts on network 192.168.2.0
will share the registered IP address 24.1.2.8 as shown. You have already identified
the inside and outside NAT interfaces on the router. Which of the following
command options will translate all inside host addresses to the single registered
IP address? - ✔✔access-list 1 permit 192.168.2.0 0.0.0.255
ip nat inside source list 1 interface serial 0 overload
Which of the following statements are true regarding NTP when implemented on
Cisco devices? (Select two.) - ✔✔NTP runs over UDP port 123.
When NTP is enabled, NTP packets are received on all interfaces.
You check the time on a router and find that it is off by several minutes. To fix this
issue, you configure NTP on the router to get time from a Stratum 2 time provider
on the internet.
The time difference is large, and it is taking some time for NTP to synchronize the
time on the local router. To speed synchronization, you use NTP commands to
immediately synchronize the time on the router with the time on the time
provider.
Which NTP term best describes this process? - ✔✔Slam
