CompTIA Network+ Network+ Troubleshooting and Tools 3

Question 1

A technician uses a toner probe kit. What is the primary purpose of this tool?

Accepted Answer

Locating and tracing a specific cable through walls or a patch panel

Answer

A toner probe (tone generator and probe) is used to identify and trace the path of a specific cable among many others.

Question 2

Which of the following symptoms is most characteristic of a broadcast storm?

Accepted Answer

Sudden complete network performance collapse affecting all devices

Answer

A broadcast storm causes exponentially increasing broadcast traffic that saturates the entire network, causing complete performance collapse for all devices.

Question 3

What does a high number of CRC errors on a switch port most likely indicate?

Accepted Answer

Physical layer issues such as a faulty cable or NIC

Answer

CRC errors indicate corrupted frames arriving at the switch port, most commonly caused by physical media problems like a bad cable or failing NIC.

Question 4

A technician needs to capture and analyze network packets in real time. Which tool is best suited for this?

Accepted Answer

Wireshark

Answer

Wireshark is a packet analyzer (protocol analyzer) that captures and displays network traffic in real time for detailed inspection.

Question 5

An administrator notices the network is slow only during business hours. Which tool would best help identify which application or host is consuming the most bandwidth?

Accepted Answer

Protocol analyzer / bandwidth monitor

Answer

A bandwidth monitor or protocol analyzer (e.g., SNMP-based tools or NetFlow) can identify top talkers and applications consuming bandwidth over time.

CompTIA Practice Test

CompTIA Practice Test

CompTIA Network+ Network+ Troubleshooting and Tools 3