Page | 1
CREST CPSA QUESTIONS WITH
DETAILED VERIFIED ANSWERS
TCP Ans: Transmission Control Protocol
UDP Ans: User Datagram Protocol
Port 21 Ans: FTP
FTP Ans: File Transfer Protocol
Port 22 Ans: SSH
SSH Ans: Secure Shell
Port 23 Ans: Telnet
Port 25 Ans: SMTP
SMTP Ans: Simple Mail Transfer Protocol
Port 49 Ans: TACACS
TACACS Ans: Terminal Access Controller Access Control System
Port 53 Ans: DNS
DNS Ans: Domain Name System
Port 67 (UDP) Ans: DHCP (Server)
Port 68 (UDP) Ans: DHCP (Client)
DHCP Ans: Dynamic Host Configuration Protocol
Port 69 (UDP) Ans: TFTP
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TFTP Ans: Trivial File Transfer Protocol
Port 80 Ans: HTTP
HTTP Ans: Hypertext Transfer Protocol
Port 88 Ans: Kerberos
Kerberos Ans: 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 Ans: POP3
POP3 Ans: Post Office Protocol version 3
Port 111 Ans: RPC
RPC Ans: Remote Procedure Call
Port 123 Ans: NTP
NTP Ans: Network Time Protocol
Port 135 Ans: Windows RPC (EPM)
Port 593 Ans: RPC over HTTPS
Port 445 Ans: SMB
SMB Ans: Server Message Block
Port 137 (UDP) Ans: NetBIOS (name services)
Port 138 (UDP) Ans: NetBIOS (datagram services)
Port 139 Ans: NetBIOS (session services)
NetBIOS Ans: Network Basic Input/Output System
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Port 143 Ans: IMAP
IMAP Ans: Internet Message Access Protocol
Port 161 (UDP) Ans: SNMP
SNMP Ans: Simple Network Management Protocol
Port 179 Ans: BGP
BGP Ans: Border Gateway Protocol
Border Gateway Protocol (BGP) Ans: 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 Ans: AppleTalk
Port 389 Ans: LDAP
LDAP Ans: Lightweight Directory Access Protocol
Port 443 Ans: HTTPS
Port 500 (UDP) Ans: Internet Key Exchange (IKE) (used with IPSec)
ISAKMP
ISAKMP Ans: Internet Security Association and Key Management
Protocol
Port 514 (UDP) Ans: Syslog
Port 520 Ans: RIP
RIP Ans: Routing Information Protocol
Port 546 Ans: DHCPv6 (client)
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Port 567 Ans: DHCPv6 (servers)
Port 587 Ans: SMTP
Port 902 Ans: VMWare
Port 1080 Ans: Socks Proxy
Port 636 Ans: LDAPS
Port 1194 Ans: VPN
Port 1433 Ans: MS-SQL
Port 1434 Ans: MS-SQL (monitoring)
Port 1521 Ans: Oracle
Port 1629 Ans: DameWare
Port 2049 Ans: NFS
NFS Ans: Network File System
Port 3128 Ans: Squid Proxy
Port 3306 Ans: MySQL
Port 3389 Ans: RDP (Remote Desktop Protocol)
Port 5060 Ans: SIP
SIP Ans: Session Initiation Protocol
Port 5222 Ans: Jabber
Port 5432 Ans: Postgres
Port 5666 Ans: Nagios
CREST CPSA QUESTIONS WITH
DETAILED VERIFIED ANSWERS
TCP Ans: Transmission Control Protocol
UDP Ans: User Datagram Protocol
Port 21 Ans: FTP
FTP Ans: File Transfer Protocol
Port 22 Ans: SSH
SSH Ans: Secure Shell
Port 23 Ans: Telnet
Port 25 Ans: SMTP
SMTP Ans: Simple Mail Transfer Protocol
Port 49 Ans: TACACS
TACACS Ans: Terminal Access Controller Access Control System
Port 53 Ans: DNS
DNS Ans: Domain Name System
Port 67 (UDP) Ans: DHCP (Server)
Port 68 (UDP) Ans: DHCP (Client)
DHCP Ans: Dynamic Host Configuration Protocol
Port 69 (UDP) Ans: TFTP
, Page | 2
TFTP Ans: Trivial File Transfer Protocol
Port 80 Ans: HTTP
HTTP Ans: Hypertext Transfer Protocol
Port 88 Ans: Kerberos
Kerberos Ans: 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 Ans: POP3
POP3 Ans: Post Office Protocol version 3
Port 111 Ans: RPC
RPC Ans: Remote Procedure Call
Port 123 Ans: NTP
NTP Ans: Network Time Protocol
Port 135 Ans: Windows RPC (EPM)
Port 593 Ans: RPC over HTTPS
Port 445 Ans: SMB
SMB Ans: Server Message Block
Port 137 (UDP) Ans: NetBIOS (name services)
Port 138 (UDP) Ans: NetBIOS (datagram services)
Port 139 Ans: NetBIOS (session services)
NetBIOS Ans: Network Basic Input/Output System
, Page | 3
Port 143 Ans: IMAP
IMAP Ans: Internet Message Access Protocol
Port 161 (UDP) Ans: SNMP
SNMP Ans: Simple Network Management Protocol
Port 179 Ans: BGP
BGP Ans: Border Gateway Protocol
Border Gateway Protocol (BGP) Ans: 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 Ans: AppleTalk
Port 389 Ans: LDAP
LDAP Ans: Lightweight Directory Access Protocol
Port 443 Ans: HTTPS
Port 500 (UDP) Ans: Internet Key Exchange (IKE) (used with IPSec)
ISAKMP
ISAKMP Ans: Internet Security Association and Key Management
Protocol
Port 514 (UDP) Ans: Syslog
Port 520 Ans: RIP
RIP Ans: Routing Information Protocol
Port 546 Ans: DHCPv6 (client)
, Page | 4
Port 567 Ans: DHCPv6 (servers)
Port 587 Ans: SMTP
Port 902 Ans: VMWare
Port 1080 Ans: Socks Proxy
Port 636 Ans: LDAPS
Port 1194 Ans: VPN
Port 1433 Ans: MS-SQL
Port 1434 Ans: MS-SQL (monitoring)
Port 1521 Ans: Oracle
Port 1629 Ans: DameWare
Port 2049 Ans: NFS
NFS Ans: Network File System
Port 3128 Ans: Squid Proxy
Port 3306 Ans: MySQL
Port 3389 Ans: RDP (Remote Desktop Protocol)
Port 5060 Ans: SIP
SIP Ans: Session Initiation Protocol
Port 5222 Ans: Jabber
Port 5432 Ans: Postgres
Port 5666 Ans: Nagios
