CREST CPSA Exam Questions with
Complete Solutions
TCP - ANSWERS-Transmission Control Protocol
UDP - ANSWERS-User Datagram Protocol
Port 21 - ANSWERS-FTP
FTP - ANSWERS-File Transfer Protocol
Port 22 - ANSWERS-SSH
SSH - ANSWERS-Secure Shell
Port 23 - ANSWERS-Telnet
Port 25 - ANSWERS-SMTP
SMTP - ANSWERS-Simple Mail Transfer Protocol
Port 49 - ANSWERS-TACACS
TACACS - ANSWERS-Terminal Access Controller Access Control System
,Port 53 - ANSWERS-DNS
DNS - ANSWERS-Domain Name System
Port 67 (UDP) - ANSWERS-DHCP (Server)
Port 68 (UDP) - ANSWERS-DHCP (Client)
DHCP - ANSWERS-Dynamic Host Configuration Protocol
Port 69 (UDP) - ANSWERS-TFTP
TFTP - ANSWERS-Trivial File Transfer Protocol
Port 80 - ANSWERS-HTTP
HTTP - ANSWERS-Hypertext Transfer Protocol
Port 88 - ANSWERS-Kerberos
Kerberos - ANSWERS-A computer network authentication protocol that works on the basis of
tickets to allow nodes communicating over a non-secure network to prove their identity to one
another in a secure manner
Port 110 - ANSWERS-POP3
POP3 - ANSWERS-Post Office Protocol version 3
,Port 111 - ANSWERS-RPC
RPC - ANSWERS-Remote Procedure Call
Port 123 - ANSWERS-NTP
NTP - ANSWERS-Network Time Protocol
Port 135 - ANSWERS-Windows RPC (EPM)
Port 593 - ANSWERS-RPC over HTTPS
Port 445 - ANSWERS-SMB
SMB - ANSWERS-Server Message Block
Port 137 (UDP) - ANSWERS-NetBIOS (name services)
Port 138 (UDP) - ANSWERS-NetBIOS (datagram services)
Port 139 - ANSWERS-NetBIOS (session services)
NetBIOS - ANSWERS-Network Basic Input/Output System
Port 143 - ANSWERS-IMAP
, IMAP - ANSWERS-Internet Message Access Protocol
Port 161 (UDP) - ANSWERS-SNMP
SNMP - ANSWERS-Simple Network Management Protocol
Port 179 - ANSWERS-BGP
BGP - ANSWERS-Border Gateway Protocol
Border Gateway Protocol (BGP) - ANSWERS-A standardized exterior gateway protocol designed
to exchange routing and reach-ability information among autonomous systems on the Internet.
The protocol is classified as a path vector protocol.
Port 201 - ANSWERS-AppleTalk
Port 389 - ANSWERS-LDAP
LDAP - ANSWERS-Lightweight Directory Access Protocol
Port 443 - ANSWERS-HTTPS
Port 500 (UDP) - ANSWERS-Internet Key Exchange (IKE) (used with IPSec)
ISAKMP
Complete Solutions
TCP - ANSWERS-Transmission Control Protocol
UDP - ANSWERS-User Datagram Protocol
Port 21 - ANSWERS-FTP
FTP - ANSWERS-File Transfer Protocol
Port 22 - ANSWERS-SSH
SSH - ANSWERS-Secure Shell
Port 23 - ANSWERS-Telnet
Port 25 - ANSWERS-SMTP
SMTP - ANSWERS-Simple Mail Transfer Protocol
Port 49 - ANSWERS-TACACS
TACACS - ANSWERS-Terminal Access Controller Access Control System
,Port 53 - ANSWERS-DNS
DNS - ANSWERS-Domain Name System
Port 67 (UDP) - ANSWERS-DHCP (Server)
Port 68 (UDP) - ANSWERS-DHCP (Client)
DHCP - ANSWERS-Dynamic Host Configuration Protocol
Port 69 (UDP) - ANSWERS-TFTP
TFTP - ANSWERS-Trivial File Transfer Protocol
Port 80 - ANSWERS-HTTP
HTTP - ANSWERS-Hypertext Transfer Protocol
Port 88 - ANSWERS-Kerberos
Kerberos - ANSWERS-A computer network authentication protocol that works on the basis of
tickets to allow nodes communicating over a non-secure network to prove their identity to one
another in a secure manner
Port 110 - ANSWERS-POP3
POP3 - ANSWERS-Post Office Protocol version 3
,Port 111 - ANSWERS-RPC
RPC - ANSWERS-Remote Procedure Call
Port 123 - ANSWERS-NTP
NTP - ANSWERS-Network Time Protocol
Port 135 - ANSWERS-Windows RPC (EPM)
Port 593 - ANSWERS-RPC over HTTPS
Port 445 - ANSWERS-SMB
SMB - ANSWERS-Server Message Block
Port 137 (UDP) - ANSWERS-NetBIOS (name services)
Port 138 (UDP) - ANSWERS-NetBIOS (datagram services)
Port 139 - ANSWERS-NetBIOS (session services)
NetBIOS - ANSWERS-Network Basic Input/Output System
Port 143 - ANSWERS-IMAP
, IMAP - ANSWERS-Internet Message Access Protocol
Port 161 (UDP) - ANSWERS-SNMP
SNMP - ANSWERS-Simple Network Management Protocol
Port 179 - ANSWERS-BGP
BGP - ANSWERS-Border Gateway Protocol
Border Gateway Protocol (BGP) - ANSWERS-A standardized exterior gateway protocol designed
to exchange routing and reach-ability information among autonomous systems on the Internet.
The protocol is classified as a path vector protocol.
Port 201 - ANSWERS-AppleTalk
Port 389 - ANSWERS-LDAP
LDAP - ANSWERS-Lightweight Directory Access Protocol
Port 443 - ANSWERS-HTTPS
Port 500 (UDP) - ANSWERS-Internet Key Exchange (IKE) (used with IPSec)
ISAKMP
