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During a penetration test from the Internet, Jane, the system administrator, was able to establish a connection to an internal router, but not successfully log in to it. Which ports and protocols are MOST likely to be open on the firewall? (Choose FOUR).
Correct Answer: B,C,F,J
Section: Threats and Vulnerabilities Explanation/Reference: Explanation: The question states that Jane was able to establish a connection to an internal router. Typical ports and protocols used to connect to a router include the following: B, F: Port 22 which is used by SSH (Secure Shell). C, J: Port 23 which is used by Telnet. SSH and Telnet both provide command line interfaces for administering network devices such as routers and switches.