Domain 4 Flashcards
What protocol operate Layer 1 - physical, protocols
EIA/TIA-32 EIA/TIA-449 X.21 High-Speed Special Interface (HSSI) Synchronous Optical Networking (SONET) V.24 and V.35
Layer 1 - Physical, devices
NIC, Hub, Repeaters, Concentrator, and amplifiers
What protocol operate Layer 2 - Data Link, Protocols
Serial Line Internet Protocol (SLIP) Point-to-Point Protocol (PPP) Address Resolution Protocol (ARP) Layer 2 Forwarding (L2F) Point-to-Point Tunneling Protocol (PPTP) Integrated Services Digital Network (ISDN)
What H/W Layer 2 - Data Link, Devices
Switches and Bridges
What protocol Layer 3 - Network Layer, protocols
Internet Control Message Protocol (ICMP) Route protocol: ---Routing Information Protocol (RIP) ---Open Shortest Path First (OSPF) ---Border Gateway Protocol (BGP) Internet Group Management Protocol (IGMP) Intenet Protocol (IP) Internet Protocol Security (IPSec) Internetwork Packet Exchange (IPX) Network Address Translation (NAT) Simple Key Management for Internet Protocols (SKIP)
What H/W Layer 3 - Network Layer, devices
Routers and Brouters (router and bridge)
What protocol Layer 4 - Transport Layer, protocols
Transmission control protocol (TCP) User Datagram protocol (UDP) Sequenced Packet Exchange (SPX) Secure Socket Layer (SSL) Transport Layer Security (TLS)
What protocol Layer 5 - Session, protocols
NFS, SQL, RPC
operations on three different control modes:
—Simplex, half-duplex, full-duplex
What operate Layer 6 - presentation, format standards
American standard code for information interchange (ASCII)
Extended Binary-Coded Decimal Interchange Mode (EBCDICM)
Tagged Image File Format (TIFF)
Joint Photographic Experts Group (JPEG)
Moving Picture Experts Group (MPEG)
Musical Instrument Digital Interface (MIDI)
What operate Layer 7 - Application, Protocols
HTTP, FTP, SMTP, Telnet, TFTP, Line Print Daemon (LPD) Electronic Data Interchange (EDI) Post Office Protocol version 3 (POP3) Internet Message Access Protocol (IMAP) Simple Network Management Protocol (SNMP) Network News Transport Protocol (NNTP) Secure Remote Procedure Call (S-RPC) Secure Electronic Transaction (SET)
OSI MODEL maps to TCP/IP model:
Application
Presentation
Session
TCP/IP model:
Application
OSI MODEL maps to TCP/IP model: Transport
TCP/IP: Transport
OSI MODEL: Network Maps to
TCP/IP: Internet
OS MODEL: Data Link, Physical maps to
TCP/IP: Link
—-Ethernet, Fast Ethernet, Token Ring, FDDI
Application Level Gateway Firewall
Proxy firewall, 2nd generation
- -layer 7 - application
- -each packet is examine, performance impact
Circuit level gateway firewall
layer 5 - Session
2nd generation
src, dst, port
Stateful Inspection Firewall
AKA dynamic packet filtering firewall src,dst,port, track packets of same session block/authorize user activities layer 3 and 4 (Network and Transport) 3rd generation
Deep Packet Inspection Firewall
block domain, malware, and spam. Integrate with application or stateful firewall
Un-skill Attacker Pester Real Security Folks
URG, ACK, PSH, RST, SYN, FIN
IPV4
IPV6
IPV4 - 32 bit
IPV6 128 bit
A /8 B /16 C /24 D - Multicast E - Reserve
0 1-126 10 128-191 110 192-223 1110 224-239 1111 240-255
ICMP
Echo reply
Destination Unreachable
Redirect
Echo Request
Router Advertisement
Router Solicitation
Time Exceeded
ICMP
0
3
5
8
9
10
11
Common application layers protocol Telnet FTP TFP SMTP
POP3 IMAP DHCP HTTP HTTPS
LPD
X-Windows
NFS
SNMP
common application layer protocol 23 21(passive), 20 (Active Data) UDP port 69 25
110 143 UDP 67 (DST port of server), 68 (src port of client) 80 443
515
6000-6063
2049
UDP: 161, 162 (Trap Messages)
- 11 - wireless specs
- 11
- 11a
- 11b
- 11g
- 11n
- 11ac
802.11 - wireless specs
2 Mbps 2.4GHz
54 Mbps 5GHz
11 Mbps 2.4GHz
54 Mbps 2.4GHz
200+ Mbps 2.4 or 5GHz
1 Gbps 5GHz
