Identify Common Connectivity Problems and Their Solutions NETWORKING-FOUNDATIONS Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A network administrator is troubleshooting a user's inability to reach a server on a different subnet. The user can ping the default gateway but cannot ping the server's IP address. The administrator checks the routing table on the gateway and finds no route to the server's subnet. What is the most likely cause and solution?

   • AThe server's VLAN is misconfigured; correct the VLAN assignment on the server's access port.
   • BThe server's IP address is incorrect; reconfigure the server with a valid IP address for its subnet.
   • CThe user's NIC is faulty; replace the network interface card.
   • DThe gateway lacks a route to the server's subnet; add a static route or enable a dynamic routing protocol.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   A network engineer is troubleshooting intermittent connectivity between two switches. The link is up, but there are CRC errors on the interface. Which show command would provide the most direct evidence of this issue?

   • Ashow running-config
   • Bshow vlan
   • Cshow interfaces
   • Dshow version
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   A network administrator is troubleshooting a connectivity issue where a user cannot reach a server on the same VLAN. The user can ping the gateway, but not the server. The administrator checks the ARP table on the gateway and sees the server's MAC address. What is the most likely cause and solution?

   • AThe server's firewall is blocking ICMP; disable the firewall or allow ICMP.
   • BThe server's IP address is misconfigured; correct the IP address on the server.
   • CThe server is down; restart the server.
   • DThe user's NIC is faulty; replace the network interface card.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   A switch port is configured as an access port on VLAN 10, but the connected device is on VLAN 20. The device cannot communicate with other devices on VLAN 10. Which corrective action would resolve this issue?

   • AReconfigure the switch port to be on VLAN 20
   • BSet the port to auto-negotiate speed
   • CEnable spanning-tree on the port
   • DChange the switch port to a trunk port
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   A user's PC is assigned an IP address of 192.168.1.50/24, but the default gateway is configured as 192.168.2.1. The user cannot access the internet. Which corrective action should be taken?

   • ADisable the firewall on the PC
   • BChange the PC's IP address to 192.168.2.50
   • CChange the default gateway to 192.168.1.1
   • DRenew the DHCP lease
   Reveal Solution Discussion Select an answer first