Network Troubleshooting CCT Practice Questions (Page 7)

Questions 31–35

1. 31expert · hard

   A network administrator is troubleshooting intermittent connectivity issues in a large office. The switch logs show MAC address flapping between two ports on the same switch. The administrator suspects a loop but Spanning Tree Protocol (STP) is enabled. What should the administrator do next?

   • AChange the MAC address on the connected devices.
   • BDisable STP on the switch to stop the flapping.
   • CReplace the switch with a new one.
   • DCheck for a misconfigured port that is set to 'portfast' with a loop.
   Reveal Solution Discussion Select an answer first
2. 32expert · hard

   A network engineer is troubleshooting a routing issue. The network has a router with two interfaces: Gi0/0 (192.168.1.1/24) and Gi0/1 (192.168.2.1/24). A workstation on 192.168.1.0/24 can ping 192.168.2.1, but cannot ping a server on 192.168.2.10/24. The server can ping its own gateway (192.168.2.1). What is the most likely cause?

   • AThe workstation's default gateway is set to 192.168.2.1.
   • BThe server's subnet mask is incorrectly configured as /16.
   • CThe router's routing table is missing a route to 192.168.1.0/24.
   • DThe server's firewall is blocking ICMP from the workstation's subnet.
   Reveal Solution Discussion Select an answer first
4. 33foundation · easy

   A client is unable to obtain an IP address from the DHCP server. The technician checks the client's configuration and finds that the IP address is 169.254.0.1. What does this address indicate?

   • AThe client's network cable is unplugged
   • BThe client's subnet mask is incorrect
   • CThe DHCP server is unreachable
   • DThe DNS server is misconfigured
   Reveal Solution Discussion Select an answer first
5. 34foundation · easy

   A client is unable to establish a TCP connection to a server. The technician suspects that the server's firewall is blocking the connection. Which transport layer mechanism is being affected?

   • APort access
   • BFlow control
   • CCongestion avoidance
   • DThree-way handshake
   Reveal Solution Discussion Select an answer first
6. 35application · medium

   Users in a conference room report that their laptops frequently disconnect from the Wi-Fi network, while users in adjacent offices have no issues. A site survey shows that the conference room has a microwave oven that is used frequently. What is the most likely cause of the disconnections?

   • AThe access point is configured with WPA2 instead of WPA3.
   • BThe access point is overloaded with too many clients.
   • CThe microwave oven is causing interference on the 2.4 GHz band.
   • DThe laptops are using a weak Wi-Fi antenna.
   Reveal Solution Discussion Select an answer first