A company uses SSH to support internal users. They want to block external SSH connections from reaching internal machines. Which of the following should be blocked on the firewall?
A. 22
B. 23
C. 443
D. 8080
Answer: A. 22
Computer Science & Information Technology
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The INDEX function works with the MATCH function extremely well because the MATCH function indicates the row where a match was found, and then the INDEX function can go to that row and another column to retrieve associated data
Indicate whether the statement is true or false.
Computer Science & Information Technology
A customer wants to increase firewall security. Which of the following are common reasons for implementing port security on the firewall? (Select TWO).
A. Preventing dictionary attacks on user passwords B. Reducing spam from outside email sources C. Shielding servers from attacks on internal services D. Blocking external probes for vulnerabilities E. Directing DNS queries to the primary server
Computer Science & Information Technology