Multiple Choice Questions

The shortage of IPv4 addressesNetwork Address Translation helps address the shortage of registered IPv4 addresses. A NAT router translates multiple private addresses into a single registered IP address.The internet is classified as a public network. All devices on a public network must have a registered IP address assigned by an Internet Service Provider (ISP). NAT does not address any issues in this process.There is no shortage of IPv6 addresses.NAT can cause IPSec to malfunction because NAT changes packet headers. IPSec detects changes to packet headers as part of the security process.
  • Which NAT implementation assigns two IP addresses to the public NAT interface, allowing traffic to flow in both directions?
  • Which problem does NAT help address?
  • Which of the following does a NAT router use to identify where a host is connected on the switch?
  • Which device is NAT typically implemented on?
Gateway routerNAT is typically implemented on a default gateway router.AD server, RADIUS server, and ISP Router cannot be used to configure NAT.
  • Which problem does NAT help address?
  • Which device is NAT typically implemented on?
  • Which of the following does a NAT router use to identify where a host is connected on the switch?
  • At which layer of the OSI model do NAT routers operate?
Class B private networkA device with the IP address of 172.16.0.55 is on a Class B private network. A private network can use IPv4 addresses in the following ranges that have been reserved for private use (meaning they are not used by hosts on the internet).10.0.0.0 to 10.255.255.255 (known as Class A private network addresses)172.16.0.0 to 172.31.255.255 (known as Class B private network addresses)192.168.0.0 to 192.168.255.255 (known as Class C private network addresses)IPv6 reserves all addresses beginning with a binary 1111 1110 11 (hexadecimal FEC0::/48) for private IP networks. This address range is called the site-local address range.
  • Which of the following does a NAT router use to identify where a host is connected on the switch?
  • A network device is given an IP address of 172.16.0.55. Which type of network is this device on?
  • Which problem does NAT help address?
  • Which NAT implementation assigns two IP addresses to the public NAT interface, allowing traffic to flow in both directions?
Layer 3 (Network layer)NAT routers operate at the Network layer (Layer 3) of the OSI Model.
  • Which device is NAT typically implemented on?
  • Which problem does NAT help address?
  • At which layer of the OSI model do NAT routers operate?
  • How many concurrent connections does NAT support?
5,000NAT supports a limit of 5,000 concurrent connections.
  • How many concurrent connections does NAT support?
  • Which device is NAT typically implemented on?
  • At which layer of the OSI model do NAT routers operate?
  • You want to connect your small company network to the internet. Your ISP provides you with a single IP address that is to be shared between all hosts on your private network. You do not want external hosts to be able to initiate connection to internal hosts. Which type of Network Address Translation (NAT) should you implement?
Dynamic and staticDynamic and static NAT can be implemented together. Using this implementation, two IP addresses are given to the public NAT interface (one for dynamic NAT and one for static NAT). This allows traffic to flow in both directions.Use dynamic NAT to share public addresses with multiple private hosts. Dynamic NAT allows private hosts to access the internet but does not allow internet hosts to initiate contact with private hosts.Static NAT maps an internal IP address to a static port assignment. Static NAT is typically used to take a server on the private network (such as a web server) and make it available on the internet.The NAT router uses Port Address Translation (PAT) to associate a port number with a request from a private host.
  • Which NAT implementation assigns two IP addresses to the public NAT interface, allowing traffic to flow in both directions?
  • You have a small network at home that is connected to the internet. On your home network, you have a server with the IP address of 192.168.55.199/16. You have a single public address that is shared by all hosts on your private network.You want to configure the server as a web server and allow internet hosts to contact the server to browse a personal website.What should you use to allow access?
  • Which of the following does a NAT router use to identify where a host is connected on the switch?
  • A network device is given an IP address of 172.16.0.55. Which type of network is this device on?
PATA NAT router uses Port Address Translation (PAT) to associate a port number with a request from a private host. When a return packet comes in, it is sent to the port number specified in the request. The NAT router uses its translation table to determine the private host associated with that port number and forwards the data to the appropriate host.Use dynamic NAT to share public addresses with multiple private hosts. Dynamic NAT allows private hosts to access the internet but does not allow internet hosts to initiate contact with private hosts.Static NAT maps an internal IP address to a static port assignment. Static NAT is typically used to take a server on the private network (such as a web server) and make it available on the internet.IPv4 is the most widely used version of Internet Protocol (IP). It defines IP addresses in a 32-bit format.
  • Which of the following does a NAT router use to identify where a host is connected on the switch?
  • Which device is NAT typically implemented on?
  • Which NAT implementation assigns two IP addresses to the public NAT interface, allowing traffic to flow in both directions?
  • A network device is given an IP address of 172.16.0.55. Which type of network is this device on?
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Multiple Choice Questions
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