3.3. Examine Basic End-Device Connectivity to the Network. 100-140 Practice Questions (Page 7)

Questions 31–35

1. 31expert · medium

   A user cannot access the internet. You run `ping 8.8.8.8` and it succeeds. You then run `ping www.google.com` and it fails. What is the most likely cause?

   • ADNS resolution is failing.
   • BThe user's IP address is in the APIPA range.
   • CThe firewall is blocking ICMP to domain names.
   • DThe default gateway is down.
   Reveal Solution Discussion Select an answer first
2. 32application · medium

   A user reports that their Windows laptop cannot access the internet. You run ipconfig and see the IP address 169.254.12.34 with a subnet mask of 255.255.0.0. What is the most likely cause of the connectivity issue?

   • AThe laptop is configured with a static IP address that conflicts with another device.
   • BThe default gateway is misconfigured, so the laptop cannot route traffic.
   • CThe DHCP server did not assign an address, and the laptop self-assigned an APIPA address.
   • DThe DNS server is unreachable, preventing name resolution.
   Reveal Solution Discussion Select an answer first
4. 33application · medium

   A user can access resources on the local network but cannot reach the internet. The user's IP configuration shows IP address 192.168.1.50, subnet mask 255.255.255.0, and default gateway 192.168.1.1. What should you check first?

   • ARun nslookup to verify DNS resolution.
   • BVerify the IP address is in the correct subnet.
   • CPing the default gateway to verify it is reachable and routing.
   • DCheck the subnet mask for a misconfiguration.
   Reveal Solution Discussion Select an answer first
5. 34application · medium

   A Windows user cannot access the internet. You run `ipconfig` and see the following output for the Ethernet adapter: IP Address: 192.168.1.50, Subnet Mask: 255.255.255.0, Default Gateway: 192.168.1.1. You can ping 192.168.1.1 successfully, but you cannot ping 8.8.8.8. What is the most likely cause?

   • AThe user's firewall is blocking outbound ICMP.
   • BThe user's DNS settings are incorrect.
   • CThe user's IP address is in the wrong subnet.
   • DThe default gateway is not routing traffic to the internet.
   Reveal Solution Discussion Select an answer first
6. 35application · medium

   A Windows workstation is configured to obtain an IPv4 address automatically, but it also has IPv6 enabled. The workstation receives a global IPv6 address but no IPv4 address. What is the most likely reason?

   • AThe workstation's firewall is blocking DHCP.
   • BThe IPv4 address is in the APIPA range.
   • CThe default gateway is not configured for IPv4.
   • DThe DHCP server is not responding to IPv4 requests, but DHCPv6 or router advertisements are providing IPv6.
   Reveal Solution Discussion Select an answer first