Core Technical Skills Flashcards
List 5 IP protocols
IPv4
IPv6
TCP
UDP
ICMP
What is IPv4?
- composed of 32- bit address length
Is the IP address
192.168.10.150
an example of IPv4 or IPv6
IPv4
What is IPv6?
- composed of 128-bit address length
-latest version of IP
Is the IP address
002:0bd6:0000:0000:0000:ee00:0033:6778
an example of IPv4 or IPv6?
IPv6
What are some technical differences between IPv4 and IPv6?
IPv6 has built in QoS (Quality of Service)
IPv6 has built in network security layer (IPSec)
IPv6 eliminates NAT(Network Address Translation) and allows end-to-end connectivity at IP layer
IPv6 has larger packet headers (2x size of IPv4)
Multicasting is part of base spec in IPv6 but optional in IPv4
What is Multicasting?
Multicasting allows for the transmission of a packet to multiple destinations in a single operation
What is TCP?
Transmission Control Protocol
- Transport protocol used on top of IP to ensure reliable transmission of packets
- TCP/IP is a suite of communication protocols used to interconnect network devices on the internet
- Connection-oriented protocol
- Can be thousands of packets
What OSI Layer is TCP?
OSI Layer 4: Transport
What is UDP?
User Datagram Protocol
- Communications protocol that establishes low-latency and loss-tolerating connections between applications on the internet
- UDP speeds up transmissions by not formally establishing a connection before data is transferred
What OSI Layer is UDP?
OSI Layer 4: Transport
What is ICMP?
Internet Control Message Protocol
- Used by devices like routers, to communicate with data packet source about transmission issues.
—- if a datagram isn’t delivered, ICMP will report back to the host with details to find out where the transmission went wrong.
- ICMP gives TCP/IP a way to handle errors
- ICMP is a single packet - never more than one
What OSI Layer is ICMP?
OSI Layer 3: Network
What is 10/100/1000 BaseT?
To break down 10/100/1000 ethernet - we get 10 Megabits, 100 Megabits, and 1000 Megabits
1000BASE-T is Gigabit ethernet. 100BASE-T is Fast ethernet.
What are implications of Cat5, 5e, 6, 7 Ethernet Cables?
Implications: A strong magnet near a cable can interfere communications. We can also do cable splicing on a cable to preform man-in-the-middle attacks.
What is Cat 5/Fibre?
- Category 5 networking cable consisting of four twisted pairs of copper wire terminated with RJ45 connectors.
-Supports frequencies up to 100MHz and speeds up to 1000Mbps - Can be used for ATM, token ring, 10/100/1000Base-T networking
What is CAT5e?
- Category 5 enhanced
- Used for 10/100/1000Base-T networks.
- Four unshielded twisted pairs (UTP) of copper wire terminated by RJ45 connectors
What is CAT6?
- Four unshielded twisted pairs (UTP) of copper wire terminated by RJ45 connectors
- Can be used for ASE-T, 10/100/1000Base-T networks
What is a Token Ring network?
- Used to build LANs
- A data link for a LAN where all devices are connected in a ring or star topology and pass one or more token from host to host
What is a token?
A token is a frame of data transmitted between network points
What is wireless 802.11?
Technical standard for wireless local area network.
IEEE 802.11 uses various frequencies including, but not limited to, 2.4 GHz, 5 >GHz, 6 GHz, and 60 GHz frequency bands.