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350-401 · Question #919

An engineer is connected to a Cisco router through a Telnet session. Which command must be issued to view the logging messages from the current session as soon as they are generated by the router?

The correct answer is B. terminal monitor. To display real-time logging messages from a Cisco router to a non-console terminal session (like Telnet or SSH), the terminal monitor command must be issued.

Submitted by jakub_pl· Mar 6, 2026Network Assurance

Question

An engineer is connected to a Cisco router through a Telnet session. Which command must be issued to view the logging messages from the current session as soon as they are generated by the router?

Options

  • Alogging host
  • Bterminal monitor
  • Cservice timestamps log uptime
  • Dlogging buffer

How the community answered

(18 responses)
  • A
    6% (1)
  • B
    89% (16)
  • D
    6% (1)

Why each option

To display real-time logging messages from a Cisco router to a non-console terminal session (like Telnet or SSH), the `terminal monitor` command must be issued.

Alogging host

The `logging host` command configures the router to send logging messages to an external syslog server, not to the current terminal session.

Bterminal monitorCorrect

The `terminal monitor` command directs system messages, debug output, and other logging messages to the current Telnet or SSH session. By default, these messages are only sent to the console, but `terminal monitor` enables real-time viewing on virtual terminal lines.

Cservice timestamps log uptime

The `service timestamps log uptime` command adds a timestamp to logging messages, but it does not enable their display on the current terminal session.

Dlogging buffer

The `logging buffer` command configures the size of the buffer where logging messages are stored; messages are viewed from this buffer using the `show logging` command, not in real-time as they are generated.

Concept tested: Router logging and session monitoring

Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/esm/command/esm-cr-book/esm-cr-l2.html#wp2274971701

Topics

#Cisco IOS logging#terminal monitor#router management

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