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- 1 Refer to the exhibit. What type of NAT address is the IP address of PC1 (i.e., 192.168.10.10)?
- 2 Refer to the exhibit. Into what type of address has the IPv4 address for PC1 been translated (i.e., 209.165.200.226)?
- 3 Refer to the exhibit. What type of NAT address is the IP address of the Web Server (i.e., 209.165.201.10)?
- 4 True or False? A side effect of NAT is that it hides the inside local IP address of a host from the outside network.
- 5 True or False? With NAT overload, each inside local IP address is translated to a unique inside global IP address on a one-for-one basis.
- 6 True or False? The use of NAT makes end-to-end traceability between source and destination easier.
- 7 True or False? Tunneling protocols such as IPsec do not work well through NAT.
- 8 Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)
- 9 A network administrator wants to examine the active NAT translations on a border router. Which command would perform the task?
- 10 What are two tasks to perform when configuring static NAT? (Choose two.)
- 11 What is one advantage of using NAT at the edge of the network?
- 12 What benefit does NAT64 provide?
- 13 What address translation is performed by static NAT?
- 14 Using NAT terminology, what is the address of the source host on a private network as seen from inside the network?
- 15 Which statement accurately describes dynamic NAT?
- 16 Why is NAT not needed in IPv6?
- 17 A company designs its network so that the PCs in the internal network are assigned IP addresses from DHCP servers, and the packets that are sent to the Internet are translated through a NAT-enabled router. What type of NAT enables the router to populate the translation table from a pool of unique public addresses, as the PCs send packets through the router to the Internet?
- 18 What is a security feature of using NAT on a network?
- 19 When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?
- 20 A company has been assigned the 203.0.113.0/27 block of IP addresses by the ISP. The company has over 6000 internal devices. What type of NAT would be most appropriate for the employee workstations of the company?
- 21 Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address for connecting to the Internet?
- 22 Which two options describe a WAN? (Choose two.)
- 23 Which topology type describes the virtual connection between source to destination?
- 24 Which type of WAN network design is the most fault-tolerant?
- 25 Which is a type of WAN carrier connection that provides redundancy?
- 26 Which two statements about the WAN OSI Layer 1 are true? (Choose two.)
- 27 Which WAN term defines the point where the subscriber connects to the service providers network.
Refer to the exhibit. What type of NAT address is the IP address of PC1 (i.e., 192.168.10.10)?
- Outside local
- Inside local
- Outside global
- Inside global
Refer to the exhibit. Into what type of address has the IPv4 address for PC1 been translated (i.e., 209.165.200.226)?
- Outside local
- Inside local
- Outside global
- Inside global
Refer to the exhibit. What type of NAT address is the IP address of the Web Server (i.e., 209.165.201.10)?
- Outside local
- Inside local
- Outside global
- Inside global
True or False? A side effect of NAT is that it hides the inside local IP address of a host from the outside network.
- True
- False
True or False? With NAT overload, each inside local IP address is translated to a unique inside global IP address on a one-for-one basis.
- True
- False
True or False? The use of NAT makes end-to-end traceability between source and destination easier.
- True
- False
True or False? Tunneling protocols such as IPsec do not work well through NAT.
- True
- False
Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)
- NAT adds authentication capability to IPv4.
- NAT introduces problems for some applications that require end-to-end.
- NAT provides a solution to slow down the IPv4 address depletion.
- NAT improves packet handling.
A network administrator wants to examine the active NAT translations on a border router. Which command would perform the task?
- Router# clear IP nat translations
- Router# debug IP nat translations
- Router# show IP nat statistics
- Router# show IP nat translations
What are two tasks to perform when configuring static NAT? (Choose two.)
- Create a mapping between the inside local and inside global addresses.
- Define the outside global address.
- Define the inside global address on the server.
- Identify the participating interfaces as inside or outside interfaces.
- Configure a NAT pool.
What is one advantage of using NAT at the edge of the network?
- Dynamic NAT allows devices from outside the local network to easily initiate TCP connections to inside hosts.
- Performance is significantly increased because the router does not have to perform as many route lookups.
- NAT enables end-to-end IPv4 traceability, making troubleshooting easier.
- Changing ISPs is simpler because the devices o the inside network do not have to be configured with the new addresses when the outside address changes.
What benefit does NAT64 provide?
- It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address.
- It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.
- It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses.
- It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from hosts on public IPv4 networks.
What address translation is performed by static NAT?
- An inside local address is translated to a specified inside global address.
- An inside local address is translated to a specified outside global address.
- An outside local address is translated to a specified outside global address.
- An inside local address is translated to a specified outside global address.
Using NAT terminology, what is the address of the source host on a private network as seen from inside the network?
- Inside global
- Outside local
- Inside local
- Outside global
Which statement accurately describes dynamic NAT?
- It dynamically provides IP addressing to internal hosts.
- It provides a mapping of internal host names to IP addresses.
- It provides an automated mapping of inside local to inside global IP addresses.
- It always maps a private IP address to a public IP address.
Why is NAT not needed in IPv6?
- x
- x
- Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.
A company designs its network so that the PCs in the internal network are assigned IP addresses from DHCP servers, and the packets that are sent to the Internet are translated through a NAT-enabled router. What type of NAT enables the router to populate the translation table from a pool of unique public addresses, as the PCs send packets through the router to the Internet?
- dynamic NAT
- PAT
- ARP
- static NAT
What is a security feature of using NAT on a network?
- Denies all packets that originate from private IP addresses.
- Denies all internal hosts from communicating outside their own network.
- Allows internal IP addresses to be concealed from external users.
- Allows external IP addresses to be concealed from internal users.
When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?
- All users can access the server.
- The request to the server for the seventh user fails.
- The first user gets disconnected when the seventh user makes the request.
- No users can access the server.
A company has been assigned the 203.0.113.0/27 block of IP addresses by the ISP. The company has over 6000 internal devices. What type of NAT would be most appropriate for the employee workstations of the company?
- PAT off the external router interface
- Dynamic NAT overload using the pool of addresses.
- Dynamic or static NAT
- Port forwarding.
Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address for connecting to the Internet?
- PAT
- Static NAT
- Dynamic NAT
- Port forwarding.
Which two options describe a WAN? (Choose two.)
- A WAN is owned and managed by an organization or home user.
- A WAN provides networking over large geographical areas.
- WAN services are provided for a fee.
- WANs guarantee security between the endpoints.
Which topology type describes the virtual connection between source to destination?
- Cabling topology
- Physical topology
- Logical topology
- Wired topology
Which type of WAN network design is the most fault-tolerant?
- Dual-homed topology
- Fully meshed topology
- Hub-and-spoke topology
- Partially meshed topology
- Point-to-point topology
Which is a type of WAN carrier connection that provides redundancy?
- Dual-homed topology
- Fully meshed topology
Which two statements about the WAN OSI Layer 1 are true? (Choose two.)
- It describes how data will be encapsulated into a frame.
- It describes the electrical, mechanical, and operational components needed to transmit bits.
- It includes protocols such as PPP, HDLC, and Ethernet.
- It includes protocols such as SDH, SONET, and DWDM.
Which WAN term defines the point where the subscriber connects to the service providers network.
- CPE
- DCE
- Demarcation point
- Local loop
- Point-of-Presence (POP)
