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CREST CPSA CERTIFICATION EVALUATION 2026 COMPLETE SOLUTIONS GRADED A+, Exams of Information and Communications Technology (ICT)

Princeton UniversityInformation and Communications Technology (ICT)

CREST CPSA CERTIFICATION EVALUATION 2026 COMPLETE SOLUTIONS GRADED A+

Typology: Exams

2025/2026

Available from 11/30/2025

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CREST CPSA CERTIFICATION EVALUATION
2026 COMPLETE SOLUTIONS GRADED A+
โ—‰ SIP. Answer: Session Initiation Protocol
TCP, UDP 5060/5061
โ—‰ X11 port. Answer: TCP 6000 - 6003
โ—‰ SOAP. Answer: Simple Object Access Protocol
Post Request only (get can be used but not good)
โ—‰ NetBIOS. Answer: Network Basic Input/Output System
OSI Layer 5
TCP/UDP 137 - Name
UDP 138 - Datagram
TCP/UDP 139 - Session
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CREST CPSA CERTIFICATION EVALUATION

2026 COMPLETE SOLUTIONS GRADED A+

โ—‰ SIP. Answer: Session Initiation Protocol TCP, UDP 5060/ โ—‰ X11 port. Answer: TCP 6000 - 6003 โ—‰ SOAP. Answer: Simple Object Access Protocol Post Request only (get can be used but not good) โ—‰ NetBIOS. Answer: Network Basic Input/Output System OSI Layer 5 TCP/UDP 137 - Name UDP 138 - Datagram TCP/UDP 139 - Session

โ—‰ TACACS. Answer: Terminal Access Controller Access Control System TCP 49 โ—‰ TFTP. Answer: Trivial File Transfer Protocol UDP 69 โ—‰ MX. Answer: Mail Exchange Low Priority First Priority equal = Load Balance โ—‰ ASP .net input validations. Answer: Compare Regex Custom

- HKEY_LOCAL_MACHINE\SAM

โ—‰ SSL/TLS Layer?. Answer: 6 โ—‰ Ethernet Layer?. Answer: 1 โ—‰ Routher Layer?. Answer: Between 2- 3 โ—‰ Switch Layer?. Answer: 2 โ—‰ IP, IPSEC, ICMP Layer?. Answer: 3 โ—‰ TCP/UDP layer?. Answer: 4 โ—‰ NetBIOS, RPC, PPTP Layer?. Answer: 5 โ—‰ SUS WSUS. Answer: Software Update Services Window Server Update Services

  • wuaclt.exe /detectnow - check update

โ—‰ NTP. Answer: Network Time Protocol UDP port 123 โ—‰ LDAP. Answer: Lightweight Directory Access Protocol Unencrypt - 389 Encrypt - 636 โ—‰ Presentation tier in 3 tiers architectures?. Answer: Front end (HTML, CSS ) โ—‰ Application tier in 3 tiers architectures?. Answer: Back end (Python, Java, PHP, Perl, ...) โ—‰ Data tier in 3 tiers architectures?. Answer: Database โ—‰ Cisco password type 8?. Answer: PBKDF2 + SHA256 (Best) bob Secret 8 $8${secretpassword}

LEAP

PEAP. Answer: EAP - Extensible Authentication Protocol LEAP - Lightweight EAP PEAP - Protected EAP โ—‰ IIS Version. Answer: IIS 5.0 - Window Server 2000 IIS 6.0 - Window Server 2003 IIS 7.0 - Window Server 2008 IIS 7.5 - Window Server 2008 R2, Window 7 IIS 8.0 - Window Server 2012 IIS 8.5 - Window Server 20012 R2, Window 8. IIS 10 - Window Server 2016 Onwards โ—‰ DBSNMP. Answer: Password: DBSNMP Only able to monitor and alert โ—‰ Netcat UDP listen. Answer: nc - ul 12346 when u is presented, add p to l will lead to error โ—‰ CSRF Preventions. Answer: - CSRF Token

  • Samesite cookie attribute
  • Origin Validation
  • Custom Header โ—‰ Kerberos. Answer: UDP 88 โ—‰ IMAP. Answer: Internet Message Access Protocol 143 (Unencrypt) 993 (Encrypt) โ—‰ SNMP. Answer: Simple Network Management Protocol Port 161/ โ—‰ SIP Config File. Answer: Asterisk
  • File: sip.conf / Location: /etc/asterisk/ FreeSWITCH
  • File: internal.xml / Location: sip_profiles Kamailio