N10-006 question 1138 discussion

answered

Which of the following firewall rules will block destination telnet traffic to any host with the
source IP address 1.1.1.2/24?

  • A. Deny any source host on source port 23 to destination any
  • B. Deny any source network 1.1.1.0/24 to destination any on port 23
  • C. Deny source host 1.1.12 on source port 23 to destination any
  • D. Deny any source network 1.1.1.0/24 with source port 23 to destination any
Created 9 months, 3 weeks ago by Brachinus

Brachinus

Pretty sure A would work as well.

[email protected]

no, it won't. You are not specifying which addresses are being blocked. as result, the entire organization or network won't have any connectivity over telnet

Moorish

Initially I thought it was A as well but if you think about the question, it specifically says about the host of 1.1.1.2/24; hence, if you block port 23, it would block "ALL" hosts from Telnet communication.