sec+ Flashcards
OSI model
Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical Layer
IPv4
32bit
IPv6
128bit
FTP
port 21 File transfer protocol
SSH
port 22 secure shell
SMTP
port 25 Simple network management protocol
DNS
port 53 Domain Name system
HTTP
port 80 Hypertext Transfer Protocol (HTTP)[
POP3
port 110 Port Office Protocol v3
NetBios
port 139 NetBIOS Session Service
IMAP
port 143 Internet Message Access Protocol
HTTPS
port 443 Hypertext Transfer Protocol over TLS/SSL (HTTPS)
RDP
port 3389 Microsoft Terminal Server (RDP) officially registered as Windows Based Terminal. TCP
Telenet
port 23 Telnet protocol—unencrypted text communications
SNMP
port 161 Simple Network Management Protocol (SNMP)
RPO
The recovery point objective (RPO) is a measurement of how much loss can be accepted by the organization when a disaster occurs. This acceptable loss is measured in time.
DAC
DAC (discretionary access control) is based on the discretion of a user (that is, the administrator).
RBAC
RBAC (role-based access control),
MAC
MAC (media/mandatory access control)
TBAC
TBAC (task-based access control) are based on rules: job descriptions, classifications, and work tasks, respectively.
RFC
TACACS (Terminal Access Controller Access Control System) is based on RFC 1492.
RFC 1918 defines private IP (Internet Protocol) addresses. RFC 2828 is the Internet security glossary.
RFC 1087 is the “ethics and the Internet” document.