Practice Quiz

CompTIA Network+

Category - Management

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Jack wants to close down all open ports on his computer that are used by malicious programs. Which of the following troubleshooting commands should he use to learn the process IDs of the programs along with the list of all open ports?
  1. Nbtstat -a
  2. Netstat -e
  3. Netstat -n
  4. Netstat -o
Explanation
Answer: D - Jack should use the netstat -o command to view the process IDs of the programs using certain ports on his computer.

Key Takeaway: Nbtstat -a lists a remote PC’s name table by specifying a remote PC’s name. Netstat -e displays Ethernet statistics. Netstat-n lists addresses and ports in numerical form. Netsat -o displays the process ID number of the process that opened the port.
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