Chapter 7 - Introduction to TCP/IP Flashcards
the is the OSI model and the TCP/IP model. which one is the most popular today?
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the TCP/IP model
make a parallel between the layers of the TCP/IP model and the OSI model
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application - application, presentation, session
host to host - transport
internet - network
network access - data link, physical
what layer will you find ICMP, ARP, and RARP protocols?
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internet
where will you find the token ring protocol?
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network access
tell me the two transport protocols found at the host to host layer
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TCP
UDP
what does DNS do?
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resolves the URL of a webpage to an IP address so communication can happen
tell me the two things for securing HTTPS connections
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secure socket layer SSL
transport layer security TLS
what is SMB?
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server message block, developed by microsoft (like RDP), its functions like FTP but with a few more options
how many logical ports are there on a computer?
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65,536
of all the logical ports on a computer, which ones are the well-known ports?
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0 - 1023
which ports are the registered ports?
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1024 - 49151
which ports are free to be used by application vendors?
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49152 - 65535
tell me 3 protocols that operate on UDP (not connection oriented)
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SNMP
DHCP
DNS (can do TCP as well)
how many bits in an IPv4 address?
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32
IPv4 addresses have a ____ ____ notation
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dotted decimal
each IP address is made up of two components. tell me what they are.
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network ID
host ID
all host addresses on a network must be unique, true or false?
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true
there are 5 classes of IPv4 addresses. tell me the ranges for the 1st octet for each class AND the default subnet mask
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A: 1-127 255.0.0.0 B: 128-191 255.255.0.0 C: 192-223 255.255.255.0 D: 224-239 n/a E: 240-255 n/a
4 pieces of info typically provided by DHCP server to clients.
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IP addresses
subnet mask
default gateway
DNS server address
what’s the alternative to DHCP addressing?
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static IP addressing
how many hosts in class c?
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65,536
what is APIPA?
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automatic private ip addressing, for automatic configuration of hosts that cannot reach a DHCP server
IPv6 address has how many bits?
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128
tell me the 3 sections, left to right, of a IPv6 address structure
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global prefix
subnet
interface id
how can you tell if an IP address is APIPA?
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starts with 169.254~~~~
