IS 3120 CHAPTER 11 Flashcards
A grouping of connected IP networks that are managed, maintained, and controlled by a common administrator.
Autonomous system (AS).
An exterior hybrid routing protocol that routes messages between networks and AS.
Border Gateway Protocol (BGP)
A relative metric value used to set the condition of comparison.
Cost
.
Delay
A type of routing protocol that maintains a routing tale containing route metrics provided by neighboring routers on which routing decisions are made.
Distance-vector routing protocol
Using links determined by a routing protocol through information from other routers.
Dynamic routing
A hybrid interior routing protocol that combines the shortest-path considerations of a link-state routing protocol with the metrics of IGRP.
Enhanced Interior Gateway Routing Protocol (EIGRP)
A protocol that routes messages outside an AS or between two networks.
Exterior routing protocol
A period of time during which a particular path is suspended.
Hold-down
The number of routers a packet must pass through to reach the network of its destination address.
Hop count (hops)
An interior distance-vetor routing protocol that exchanges routing information with other routers within its AS.
Interior Gateway Routing Protocol (IGRP)
Protocols that perform routing functions among the routers owned by a single entity or under the control of a single network administrator.
Interior routing protocols
A type of routing protocol that calculates the status (state) of a link and its connection type, speed, and delay.
Link-state routing protocol
The amount of bandwidth in use on a particular link.
Load
Routing protocols that divide message traffic over two or more links.
Load balancing
The length in bytes of the longest message unit that can be transmitted on available links that connect a source address to a destination address.
Maximum transmission unit (MTU)
Refers to a device with connections to multiple links.
Multi-homed
Prevents information from a particular interface from being repeated to that interface.
Poisoned reverse
A measurement of the amount of downtime on a particular link that indicates the reliability of the link. An indicator of how likely a link is to fail during transmission.
Reliability
Another term for redundancy or failover; specifically, a condition in which a network can “bounce back” from failures because its Physical Layer media, Layer 2 network access functions, and Layer 3 forwarding and addressing functions have ho-swap redundancy.
Resilience
Protocols that define the formatting and structure of data being routed.
Routed protocols
An interior distance-vector routing protocol that uses hop count as its routing metric.
Routing Information Protocol (RIP)
Communicates with other routers to maintain routing information with which path determination can be made.
Routing protocols
Maintained by a routing protocol to store metric about the addresses available through each interface port of a router.
Routing tables
A feature or distance-vector routing protocol that prevents reverse routes between two routers and helps devices direct packets around loops.
Split horizon
Using fixed links configured manually.
Static routing
An IEEE standard redundancy protocol that clusters multiple routers into a single virtual router.
Virtual Router Redundancy Protocol (VRRP)
- Which of the following is/are Layer 3 functions or services?
- Logical link management
- Logical addressing
- Physical addressing
- Frame encapsulation
Logical addressing
- Routing occurs on the ___ Layer of the OSI Reference Model.
- Data Link
- Transport
- Network
- Session
Network
- A routing protocol maintains a routing table on which path determination is based.
TRUE OR FALSE
TRUE
- Which routing protocol is used to route traffic on the Internet?
- OSPF
- BGP
- RIPv2
- EIGRP
BGP
- The two forms of routing entries are dynamic and ___.
- Logical
- Metric
- Multi-homed
- Static
Static
- Which one of the following is a routed protocol?
- RIP
- SMTP
- OSPF
- IGRP
SMTP
- The routing metric that indicates the number of intermediary routers a packet must pass through to reach the network of its destination address is called the ___.
- Delay
- Hop count
- Cost
- Load
Hop count
- The bandwidth of a link is never used as a routing metric.
TRUE OR FALSE
FALSE
- The condition that exists when the routing tables of neighboring routers are in synchronization is called ___.
- Resiliency
- Convergence
- Confluence
- Balance
Convergence
- The action in which a router divides and forwards incoming or outbound message traffic to multiple links is known as ___.
- Convergence
- Resilience
- Redundancy
- Load balancing
Load balancing
- The two types of dynamic routing protocols are link-sate and distance-vector.
TRUE OR FALSE
TRUE
- The length of the longest data unit that can be transmitted on an available link is the ___.
- Hash count
- Maximum transmission unit
- Distance-vector
- Link-state
Maximum transmission unit
- Which distance-vector routing protocol bases its routing decisions solely on hop count?
- OSPF
- EIGRP
- RIP
- BGP
RIP
- What methodology is used on networks to prevent routing loops?
- Resilience
- Split horizon
- Redundancy
- Spanning tree
Redundancy
- HSRP is a routing protocol that can be used to configure resilience on a network.
TRUE OR FALSE
TRUE
