2.3 Explain the Function of a Default Gateway CYBERSECURITY-APPRENTICE Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A network administrator is configuring a new server with a static IP address. The server must be reachable from other subnets. The administrator sets the IP to 10.10.10.10 and the subnet mask to 255.255.255.0. What additional setting is REQUIRED for the server to be reachable from other subnets?

   • AA DNS server address
   • BA secondary IP address
   • CA subnet mask of 255.255.0.0
   • DA default gateway that can route traffic to and from the server's subnet
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   What is the primary purpose of a default gateway on a host?

   • ATo allow the host to communicate with other devices on the same local subnet
   • BTo enable the host to communicate with devices on other networks or the internet
   • CTo provide a backup path for local network traffic
   • DTo filter incoming and outgoing traffic for security
   Reveal Solution Discussion Select an answer first
4. 18application · easy

   A small office has a single router connected to the internet and a switch connecting 15 computers. The computers are all in the 192.168.1.0/24 network. What is the role of the router in this setup?

   • AIt filters traffic between the computers on the same subnet
   • BIt forwards traffic from the local 192.168.1.0/24 network to the internet
   • CIt assigns IP addresses to all computers on the network
   • DIt provides wireless connectivity to the computers
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A workstation with IP address 192.168.1.50/24 can ping 192.168.1.1 (its default gateway) and other hosts on 192.168.1.0/24, but cannot reach 8.8.8.8. The workstation's routing table shows a default route via 192.168.1.1. Which step should you take FIRST to isolate the problem?

   • APing 192.168.1.1 from the workstation to confirm the gateway is still up
   • BCheck whether the default gateway can reach 8.8.8.8
   • CPing a host on a different subnet that is NOT the default gateway, such as 10.0.0.1
   • DVerify that the workstation's subnet mask is 255.255.255.0
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A network administrator is troubleshooting a host that cannot reach a server at 172.16.20.5. The host's IP is 10.10.10.10/24, and its default gateway is 10.10.10.1. The administrator checks the routing table on the host and sees a default route via 10.10.10.1. The administrator then pings 10.10.10.1 successfully. What should the administrator do NEXT to isolate the problem?

   • AAdd a static route to 172.16.20.0/24 on the host
   • BChange the host's subnet mask to 255.0.0.0
   • CReboot the host to clear the routing table
   • DPing 172.16.20.5 from the default gateway
   Reveal Solution Discussion Select an answer first