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CREST CPSA TEST PAPER 2026 ALL PHYSICAL SECURITY TOPICS UPDATED ANSWERS GRADED A+
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◉ TCP. Answer: Transmission Control Protocol ◉ Port 22. Answer: SSH ◉ SSH. Answer: Secure Shell ◉ Port 23. Answer: Telnet ◉ Port 25. Answer: SMTP ◉ SMTP. Answer: Simple Mail Transfer Protocol ◉ Port 49. Answer: TACACS ◉ TACACS. Answer: Terminal Access Controller Access Control System
◉ Port 53. Answer: DNS ◉ DNS. Answer: Domain Name System ◉ Port 67 (UDP). Answer: DHCP (Server) ◉ Port 68 (UDP). Answer: DHCP (Client) ◉ DHCP. Answer: Dynamic Host Configuration Protocol ◉ Port 69 (UDP). Answer: TFTP ◉ TFTP. Answer: Trivial File Transfer Protocol ◉ Port 80. Answer: HTTP ◉ HTTP. Answer: Hypertext Transfer Protocol ◉ Port 88. Answer: Kerberos
◉ SMB. Answer: Server Message Block ◉ Port 137 (UDP). Answer: NetBIOS (name services) ◉ Port 138 (UDP). Answer: NetBIOS (datagram services) ◉ Port 139. Answer: NetBIOS (session services) ◉ NetBIOS. Answer: Network Basic Input/Output System ◉ Port 143. Answer: IMAP ◉ IMAP. Answer: Internet Message Access Protocol ◉ Port 161 (UDP). Answer: SNMP ◉ SNMP. Answer: Simple Network Management Protocol ◉ Port 179. Answer: BGP ◉ BGP. Answer: Border Gateway Protocol
◉ Border Gateway Protocol (BGP). Answer: 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. Answer: AppleTalk ◉ Port 389. Answer: LDAP ◉ LDAP. Answer: Lightweight Directory Access Protocol ◉ Port 443. Answer: HTTPS ◉ Port 500 (UDP). Answer: Internet Key Exchange (IKE) (used with IPSec) ISAKMP ◉ ISAKMP. Answer: Internet Security Association and Key Management Protocol ◉ Port 514 (UDP). Answer: Syslog
◉ Port 1521. Answer: Oracle ◉ Port 1629. Answer: DameWare ◉ Port 2049. Answer: NFS ◉ NFS. Answer: Network File System ◉ Port 3128. Answer: Squid Proxy ◉ Port 3306. Answer: MySQL ◉ Port 3389. Answer: RDP (Remote Desktop Protocol) ◉ Port 5060. Answer: SIP ◉ SIP. Answer: Session Initiation Protocol ◉ Port 5222. Answer: Jabber ◉ Port 5432. Answer: Postgres
◉ Port 5666. Answer: Nagios ◉ Postgres. Answer: An object-relational database management system with an emphasis on extensibility and standards compliance ◉ Nagios. Answer: Open source system monitoring service ◉ Port 5900. Answer: VNC ◉ VNC. Answer: Virtual Network Computing ◉ Port 6000. Answer: X ◉ X11. Answer: A windowing system for bitmap displays, common on Unix-like operating systems. Provides the basic framework for a GUI environment: drawing and moving windows on the display device and interacting with a mouse and keyboard. ◉ Port 6129. Answer: DameWare ◉ DameWare. Answer: Remote Access Software on port 6129 ◉ Port 6667. Answer: IRC (Internet Relay Chat)
◉ fgdump. Answer: A utility for dumping passwords on Windows NT/2000/XP/2003 machines ◉ Reserved Internal IPs. Answer: 10.0.0.0/8 (10.0.0.0-10.255.255.255) : Private 127.0.0.0/8 (127.0.0.0-127.255.255.255) : Local Host Loopback 172.16.0.0/12 (172.16.0.0-172.31.255.255) : Private 192.168.0.0/16 (192.168.0.0-192.168.255.255) : Private ◉ Symmetric Encryption. Answer: DES/3DES AES Twofish Blowfish Serpent IDEA RC4, RC5, RC CAST ◉ Asymmetric Encryption. Answer: RSA
El Gamal ECC Eliptic Curve Diffie-Helman (Key Exchange) Paillier Merkle-Helman Cramer-Shoup ◉ Hashes. Answer: MD SHA MySQL < 4. MySQL MD5 (WP) MD5 (phpBB3) LM / NTLM ◉ Oracle Default Credentials. Answer: --Username | Password-- SYSTEM | MANAGER ANONYMOUS | ANONYMOUS SCOTT | TIGER OLAPSYS | MANAGER SYS | CHANGE_ON_INSTALL
secret 5 : Salted MD secret 7: Crappy Cisco encryption to prevent cleartext in the config secret 8 : PBKDF2 (Password-Based Key Derivation Function 2) bruteforce target secret 9 : scrypt (BINGO) ◉ SIP Requests. Answer: INVITE ACK BYE CANCEL OPTIONS REGISTER PRACK SUBSCRIBE NOTIFY PUBLISH INFO REFER MESSAGE UPDATE ◉ SMTP Requests. Answer: MAIL
◉ SNMP Requests. Answer: Get GetNext Set GetBulk Response Trap Inform ◉ HTTP Status Codes. Answer: 1xx - Info 2xx - Success 3xx - Redirection 4xx - Error 5xx - Server Error ◉ HTTP Status Code 404. Answer: NOT FOUND the method is not available ◉ HTTP Status Code 301. Answer: Moved Permanently
◉ Linux File System Structure. Answer: /bin - User Binaries /boot - Bootup related files /dev - Interface for system devices /etc - System Config Files /home - Base directory for user files /lib - Critical software libraries /opt - Third party software /proc - System and running processes /root - Home for root /sbin - Sys Admin binaries /tmp - Temporary Files /usr - Less critical files /var - Variable system files ◉ IPTables. Answer: A user-space utility program that allows a system administrator to configure the tables provided by the Linux kernel firewall and the chains and rules it stores ◉ Wireshark and TCPdump. Answer: Common packet analyzers. Allows the user to display TCP/IP and other packets being transmitted or received over a network to which the computer is attached
◉ pfSense. Answer: Open source firewall/router computer software distribution based on FreeBSD ◉ Solaris Command : Process Listing. Answer: prstat - a ◉ Solaris Command : Services and Status. Answer: svcs - a ◉ Solaris Command: Start Service (Admin). Answer: svcadm start
◉ Windows Commands : System Info. Answer: ver : OS Version sc query state=all : Services tasklist /svc : Processes and Services echo %USERNAME% : Current user ◉ Windows Command : Find Files of Type. Answer: dir /a /s /n c:*.pdf ◉ Windows Commands : Add User, Make Admin. Answer: net user
◉ nslookup. Answer: A network administration command-line tool for querying the Domain Name System (DNS) to obtain domain name or IP address mapping or for any other specific DNS record. ◉ IIS 1 Defaults. Answer: Windows NT Addon ◉ IIS 2 Defaults. Answer: NT 4. ◉ IIS 3 Defaults. Answer: NT 4 Service Pack ◉ IIS 4 Defaults. Answer: NT4 Option Pack ◉ IIS 5 Defaults. Answer: Windows 2000 ◉ IIS 5.1 Defaults. Answer: Windows XP ◉ IIS 6 Defaults. Answer: Windows Server 2003, Windows XP Pro ◉ IIS 7 Defaults. Answer: Windows Vista, Server 2008 ◉ IIS 7.5 Defaults. Answer: Windows 7, 2008 R
