CREST CPSA COMPREHENSIVE EXAM 2026
FULL QUESTIONS AND CORRECT ANSWERS
◉ TCP Port 7. Answer: Echo
◉ TCP Port 11. Answer: System status. syst at
◉ TCP 13. Answer: Date and time.
◉ TCP 15. Answer: netstat
◉ TCP 19. Answer: chargen
◉ TCP 21. Answer: ftp
◉ TCP 22. Answer: ssh
◉ TCP 23. Answer: Telnet
◉ TCP 25. Answer: smtp
,◉ TCP 37. Answer: Time
◉ TCP 42. Answer: wins
◉ TCP 43. Answer: whois
◉ TCP 49. Answer: tacacs
◉ TCP 53. Answer: DNS
◉ TCP 70. Answer: gopher
◉ TCP 79. Answer: finger
◉ TCP 80. Answer: http
◉ TCP 88. Answer: Kerberos
◉ TCP 110. Answer: pop3
◉ TCP 113. Answer: auth
, ◉ TCP 119. Answer: nntp
◉ TCP 139. Answer: Netbios
◉ TCP 143. Answer: imap
◉ TCP 179. Answer: bgp
◉ TCP 389. Answer: LDAP
◉ TCP 443. Answer: https
◉ TCP 445. Answer: SMB (cifs)
◉ TCP 512. Answer: exec (remote)
◉ TCP 513. Answer: login (remote )
◉ TCP 514. Answer: shell (remote)
◉ TCP 1080. Answer: socks proxy
FULL QUESTIONS AND CORRECT ANSWERS
◉ TCP Port 7. Answer: Echo
◉ TCP Port 11. Answer: System status. syst at
◉ TCP 13. Answer: Date and time.
◉ TCP 15. Answer: netstat
◉ TCP 19. Answer: chargen
◉ TCP 21. Answer: ftp
◉ TCP 22. Answer: ssh
◉ TCP 23. Answer: Telnet
◉ TCP 25. Answer: smtp
,◉ TCP 37. Answer: Time
◉ TCP 42. Answer: wins
◉ TCP 43. Answer: whois
◉ TCP 49. Answer: tacacs
◉ TCP 53. Answer: DNS
◉ TCP 70. Answer: gopher
◉ TCP 79. Answer: finger
◉ TCP 80. Answer: http
◉ TCP 88. Answer: Kerberos
◉ TCP 110. Answer: pop3
◉ TCP 113. Answer: auth
, ◉ TCP 119. Answer: nntp
◉ TCP 139. Answer: Netbios
◉ TCP 143. Answer: imap
◉ TCP 179. Answer: bgp
◉ TCP 389. Answer: LDAP
◉ TCP 443. Answer: https
◉ TCP 445. Answer: SMB (cifs)
◉ TCP 512. Answer: exec (remote)
◉ TCP 513. Answer: login (remote )
◉ TCP 514. Answer: shell (remote)
◉ TCP 1080. Answer: socks proxy