Domain 4: Communication and Network Security Pt 3 Flashcards
- UTP category
- Throughput: Voice only
- Not suitable for networks but usable by modems
Cat 1
- UTP category
- Throughput: 4 Mbps
- Not suitable for most networks; often employed for host-to-terminal connections on mainframes
Cat 2
- UTP category
- Throughput: 10 Mbps
- Primarily used in 10BaseT Ethernet networks (only 4 Mbps on Token Ring networks) and as telephone cables
Cat 3
- UTP category
- Throughput: 16 Mbps
- Primarily used in Token Ring networks
Cat 4
- UTP category
- Throughput: 100 Mbps
- Used in 100BaseTX, FDDI, and ATM networks
Cat 5
- UTP category
- Throughput: 1000 Mbps
- Used in 100BaseT and 1000BaseT
Cat 5e
- STP or UTP
- Throughput: 1000 Mbps
- Used in high-speed networks
Cat 6
- STP
- Throughput: 10 Gbps
- Near-field communication (NFC)
- Standard that establishes radio communications between devices in close proximity
- Derivative technology from RFID
- Used to performs device-to-device data exchanges, set direct communications
Cat 7
- LAN media technology that performs communications using a digital token
- Possession of the token allows a host to transmit data
i. e. Token ring networks such as FDDI
Token passing
- One system is labeled as the primary, all other systems are labeled as secondary
- The primary system inquires each secondary system to determine whether they have a need to transmit data
- When a secondary system indicates a need, it is granted permission to transmit
Polling
Authentication technique that redirects a newly connected wireless client to portal access control page
Captive portal
Antenna that send and receive signals in all directions perpendicular to the line of the antenna itself
Omnidirectional antennas
Name some directional antennas
- Yagi
- Cantenna
- Panel
- Parabolic
Network service that is used to spool print jobs and to send print jobs to printers.
Line Print Daemon (LPD) TCP Port 515
Protocol used to transmit email messages from a client to an email server and from one email server to another
SMTP TCP port 25
Protocol used to pull email messages from an inbox on an email server down to an email client
POP3 TCP port 110
- Protocol used to pull email messages from an inbox on an email server down to an email client
- More secure and offers the ability to pull headers down from the email server as well as delete messages directly off the server without have to download to the local client first
IMAP TCP port 143
- Network topology
- Connects each system as points on a circle
- Only one system can transmit data at a time, must need to be in possession of a token to do so
- If any segment of the loop is broken, all communication around the loop is broken
Ring
- Network topology
- Connects each system to a trunk or backbone cable
- All systems on the network can hear each other
Bus
- Network topology
- Each system is connected to the central hub device i.e. switch
- If one segment fails, the other segments can continue to function
Mesh
- Dedicated physical pathway created between the two communicating parties
Circuit switching
- Occurs when the message or communication is broken up into small segments and sent across the intermediary networks to the destination
Packet switching
- Legacy WAN protocol
- Provided no authentication, only half-duplex, no error detection capabilities and requires manual link establishment and teardown
Serial Line Internet Protocol (SLIP)
- Attack uses an automated call to the user explaining a problem with a credit card account.
- User is then encouraged to validate their credit info
Vishing
Attack which various types of technology are used to circumvent the phone system to make free long-distance calls, alter the function of the telephone service, steal specialized services.
Phreaking
Refer to traditional landline telephone connections
POTS and PSTN
- Protocol used to transfer files over the internet
- Performs the task of forwarding and transferring data
Transfers data when in active mode
FTP TCP port 20
- Protocol used to transfer files over the internet
- Listens to all of the commands and provides a flow control for data
FTP TCP port 21
Protocol that provides connection between server and remote computer in clear text
Telnet TCP port 23
What are alternate ports for HTTP?
HTTP TCP ports 591, 8008, and 8080
Protocol used to synchronize network devices (i.e. PCs, routers, switches) to a time reference used to ensure accurate time
NTP UDP port 123
SMB/NetBIOS ports open to allow applications and services on Windows network computers to communicate with each other talk to each other
Windows File Sharing ports 135, 137–139, 445
Microsoft SQL Server database management system (MSSQL) server
Microsoft SQL Server TCP/ UDP port 1433
Microsoft SQL Server database management system (MSSQL) monitor
Microsoft SQL Server TCP/ UDP port 1434
- Default Oracle database listener
- Handles network requests to be passed to a database instance.
Oracle TCP port 1521
Protocol widely used in IP based video conferencing, Voice over Internet Protocol (VoIP) and Internet telephony
H.323 TCP/ UDP port 1720
Protocol is an obsolete method for implementing virtual private networks.
PPTP TCP port 1723
Protocol that provides a user with a graphical interface to connect to another computer over a network connection
RDP TCP/ UDP port 3389
Protocol used for printing in certain network printers
HP JetDirect printing TCP port 9100
