What Layer Am I?
Found at this layer: USB, Bluetooth, Ethernet etc.
Physical Layer
SYN - SYN/ACK - ACK
Three Way Handshake
TCP is faster than UDP
False. Even though it is the most common protocol, it isn't needed for watching videos online. Since it is connection-oriented, it has higher bandwidth, more congestion and higher latency.
DNS
Domain Name System
_____ is a 128-Bit IP address
IPv6
Something like Facebook
Network Layer
OSI model is the most preferred network model.
False
URL
Uniform Resource Locator
A __________ connects to a computer system to add functionality. Examples are a mouse, keyboard, monitor, printer and scanner
Peripheral device
This layer uses terms like LISTEN, CLOSED or ESTABLISHED
Transport Layer
192.127.6.0/30
Cidr Notation
URG, ACK, PSH, RST, SYN, FIN are the 6 TCP Control Flags
True.
DHCP
Dynamic Host Configuration Protocols
____________ is a method by which homes, telecommunications networks and business installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations
Wireless networking
Physical and Data Link Layer as a TCP/IP couple
Network Interface
is a standardized twisted pair cable for Ethernet and other network physical layers
CAT Cables (e.g. Cat 5, 5e, Cat 6, 6a, 7 and Cat 8)
For a valid DNS setup, many domains cannot point to the same IP
False. Many domains CAN point to one IP
e.g. www.google.com AND google.com would bring you to the same IP
VPN
Virtual Private Network
TTL stands for _______ and determines how long a DNS entry can be cached.
Time to Live
These two made a baby. You call me Application, under the laws of TCP/IP.
Session and Presentation Layer
I'm like a bodyguard. I provide network security. Available on hardware and software!
Firewall
IP addresses and URL are the same thing.
False.
An IP address is an identifier, unique on a specific network, to access a computer or other connected devices.
A URL address allow the access to a specific resource on a web server. It's often a domain name followed by the page name.
CSM/CD
Carrier Sense Multiple Access/Collision Detection
192.127.6.0/23
What's the network? How many subnets? # of Host addresses?
Please show your work!
255.255.254.0 *Class C Subnet Mask*
192.127.6.0 - Network
23 - 16 = 7 *2^7 = 128 subnets*
2^9 = 510 host addresses