Bits & Bytes: Week 2, III - Routing Flashcards
a router is a network device that forwards traffic depending on the destination address of that traffic
basic definition of a router
In which layer of the TCP/IP address model is the routher?
the Network Layer
In a routing table, what is the column containing a row for each known network called?
Destination Network Column
What two things are in the destination network column of a routing table?
the network ID and network mask
???
Catchall Address
The number of times a package passes through a different router before reaching its destination is called…
Total Hops
What is the public router interface called?
The WAN Interface
What is the private router interface called?
The LAN interface
ACRONYM:
WAN
Wide Area Network
ACRONYM:
DHCP
Dynamic Host Configuration Protocol
What is the name of the protocol used when a computer is assigned an IP address from the router?
Dynamic Host Configuration Protocol
What do routers follow in order to speak to each other and share routing information?
Routing Protocols
Which protocol does a router use to share information within a single, autonomous system?
Interior Gateway Protocols
What is the term for a collection of networks that are all under the control of the same network operator?
An autonomous system
What are the two main types of interior gateway protocols?
Link state routing protocols and distance-vector protocols
What is a computer science term meaning list?
a Vector
This interior gateway protocol is older and consists of routers sharing lists of all of the networks they know and how many hops it takes to get to each network
Distance-vector protocol (basically, when a router sends a list, or vector, of the distance of networks)
Using this interior gateway protocol, each router advertises the state of the connection of each of its interfaces and runs algorithms to find the best path to a destination at a particular moment.
Link state routing protocol
ACRONYM:
IANA
Internet Assigned Numbers Authority
This type of routing protocol communicates data between routers representing the edge of an autonomous system
Exterior gateway protocol
ACRONYM:
ASN
Autonomous System Number Allocation
This non-profit organization manages IP address allocation and ASNs
Internet Assigned Numbers Authority
What kind of router connects with a core internet router?
An edge router
How many bits is an ASN?
32 bits
How many bits are in an IP address?
32 bits
ACRONYM:
OSPF
Open Shortest Path First
What is the name of the most common link state protocol?
Open Shortest Path First
ACRONYM:
RIP
Routing Information Protocol
What kind of a routing protocol is RIP?
Distance Vector Protocol
ACRONYM:
EIGRP
Enhanced Interior Gateway Routing Protocol
What kind of routing protocol is RIP?
Distance Vector Protocol
What is the only exterior gateway protocol in use today?
Border Gateway Protocol (BGP)
ACRONYM:
BGP
Border Gateway Protocol
What is is the network of physical objects embedded with electronics, software, sensors, actuators, and connectivity to enable objects to exchange data with the manufacturer, operator and/or other connected devices>
The Internet of Things
Between EIGRP and RIP, which is generally more preferred?
EIGRP
Why is EIGRP faster than other distance vector protocols?
It sends incremental updates which reduces the workload and amount of data transferred between routers.
What is the term for when routers update their tables is the network topology changes?
Dynamic Routing
What does link state routing protocol offer that distance vector protocol does not?
Information on the status of a route; distance vector protocol only knows the shortest route in terms of hops but not if that route is optimally functioning
ACRONYM:
RFC
Request for Comments
What what was established in RFC 1918?
Non-routable address space
What are the three following IPs:
- 10.0.0.0/8
- 172.16.0.0/12
- 192.168.0.0/16
the primary 3 ranges of non-routable address space
ACRONYM:
IETF
Internet Engineering Task Force
This open community develops and maintains the standards required for the internet to continue to operate
the Internet Engineering Task Force (IETF)
This is a range of IP addresses that cannot be routed to from an outside network
Non-Routable Address Space
This term refers to a range of IP addresses that are owned by no one and can be used by everyone
Non-Routable Address Space
