Explain How Network Addresses Impact Network Security 100-160 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   What is the primary purpose of Network Address Translation (NAT)?

   • ATo encrypt data between two networks
   • BTo block malicious traffic from entering a network
   • CTo assign IP addresses to devices on a network
   • DTo map private IP addresses to a public IP address for internet communication
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   A company's web server is hosted on a private IP address (192.168.1.10) behind a NAT router. The server needs to be accessible from the internet. The administrator configures the router to forward HTTPS traffic to the server. Which additional configuration is required for the server to respond to internet clients?

   • AThe server's default gateway must be set to the router's public IP address.
   • BThe router must have a NAT rule that translates the server's private IP to the router's public IP for outbound responses.
   • CThe server must have a public IP address assigned to its NIC.
   • DThe server must be placed in the DMZ with a public IP address.
   Reveal Solution Discussion Select an answer first
4. 23foundation · easy

   What is the primary function of a MAC address in local network communication?

   • AIt encrypts data transmitted over the local network.
   • BIt provides the logical address used for routing between networks.
   • CIt identifies a device across the entire internet.
   • DIt uniquely identifies a network interface on a local network segment.
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A network engineer is explaining to a colleague why IPv6 reduces the need for NAT in most environments. Which statement is accurate?

   • AIPv6 uses MAC addresses directly as IP addresses, so NAT is not required.
   • BIPv6 does not support private addresses, so NAT is impossible.
   • CIPv6 addresses are shorter, so they are easier to remember and do not need NAT.
   • DIPv6 provides a vastly larger address space, allowing every device to have a globally unique public address without needing private-to-public translation.
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   A subnet mask of 255.255.255.0 is applied to the IPv4 address 192.168.1.10. Which part of the address does the subnet mask identify as the network portion?

   • A192.168.1.10
   • B192.168
   • C10
   • D192.168.1
   Reveal Solution Discussion Select an answer first