Term
| These are the set of rules and algorithms used by routers with the purpose of learning neighbor routes. |
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Definition
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Term
| It is a routing protocol that only runs in one autonomous system. |
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Definition
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Term
| It is a routing protocol that runs in multiple different autonomous systems. |
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Definition
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Term
| ________________ transmit the whole routing table to their directly connected neighbors after a specific period. |
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Definition
| Distance Vector Routing Protocols |
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Term
| Routing Information Protocol Version 1 (RIPv1), Routing Information Version 2 and Interior Gateway Routing Protocol (IGRP) are examples of _____________. |
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Definition
| Distance Vector Routing Protocols |
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Term
| ________ uses the information received from the neighbors to construct a map of the network. Adjacencies are formed with the neighbor routers that run the same protocol and information is sent to the adjacent routers. |
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Definition
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Term
| Open Shortest Path First (OSPF), Intermediate System-to-Intermediate System (IS-IS) are example of ________________. |
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Definition
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Term
| These protocols have features of both distance vector and link state protocols. |
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Definition
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Term
| What type of routing protocol is EIGRP? |
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Definition
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Term
| What type of routing protocol is BGP? |
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Definition
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Term
| This is a technique used by the routing protocols to prevent routing loops. The main principle behind this protocol is that an interface will not forward routing information to an interface from which the same information was received. This technology can create problems in a hub-and-spoke topology and may need to be disabled. |
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Definition
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Term
| When a route fails the router running distance vector protocol advertises the failed route with an infinite metric in order to make that route unreachable. What is this called? |
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Definition
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Term
| What is the infinity metric in RIP? |
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Definition
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Term
| In case of ______________ the route that has failed or down can be forwarded from the same interface from which it was received. |
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Definition
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Term
| It does not wait for the periodic update in case the route fails but it initiates the update as soon the route is down or unreachable. |
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Definition
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Term
| This timer tells the router to ignore the information about the failed route for a specific time called the holddown time. The main reason behind it is that when a route fails routers do not disclose this information to other routers instantly. Instead, they give other routers time so that everyone in the network knows about the failed route. |
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Definition
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Term
| There can be different routing protocols used in a network. For example if there is a merger between two companies one company is running RIP and other is running OSPF. IOS chooses the best route in this case on the basis of ________________. |
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Definition
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Term
| Every routing protocol has an administrative distance, the _________ the better. |
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Definition
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Term
| What is the administrative distance of a directly connected route? |
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Definition
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Term
| What is the administrative distance of a static route? |
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Definition
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Term
| What is the administrative distance of a BGP(External route)? |
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Definition
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Term
| What is the administrative distance of a EIGRP (internal route)? |
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Definition
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Term
| What is the administrative distance of a IGRP route? |
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Definition
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Term
| What is the administrative distance of a OSPF route? |
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Definition
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Term
| What is the administrative distance of a IS-IS route? |
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Definition
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Term
| What is the administrative distance of a RIP route? |
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Definition
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Term
| What is the administrative distance of a EIGRP (External route)? |
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Definition
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Term
| What is the administrative distance of a BGP (Internal route)? |
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Definition
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Term
| What is the administrative distance of an unreachable route? |
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Definition
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Term
| At what interval are broadcast "hello" messages sent? |
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Definition
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Term
| Examples of ____________ routing protocols are RIPv1 and IGRP. |
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Definition
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Term
| Examples of ________ routing protocols are OSPF and RIPv2. |
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Definition
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Term
| Classful routing protocols use the feature of _______________ while sending the routing updates across the network boundary. |
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Definition
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Term
| __________ routing protocols send the subnet mask information in their routing updates. |
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Definition
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Term
| In _______ hello packets are used to form neighbor relationships. It uses the Dijkstra algorithm to produce shortest path tree for each destination. |
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Definition
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Term
| OPSF uses the multicast address _____________ to send hello SPF (Shortest Path First) packers to routers running OSPF |
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Definition
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Term
| OSPF uses the multicast address of _________ to send hello to the Designated Router (DR) and the Backup Designated Router. |
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Definition
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Term
| OSPF uses the concept of___________. It is a 32 bit decimal identifier. |
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Definition
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Term
| What are the five types of OSPF messages encapsulated in IP packets? |
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Definition
1) Hello
2) Database Description
3) Link State Request
4) Link State Update
5) Link State Acknowledgement |
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Term
| This OSPF packet is used to discover neighbors. |
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Definition
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Term
This packet is used for database synchronization between
routers. |
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Definition
| Database Description (DD or DBD): |
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Term
This packet is sent by the router to its neighbors to request more
details about the LSAs. |
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Definition
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Term
| This packet is sent by the router to whom the LSR is sent. It contains more detailed information about the LSA contained in the LSR. |
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Definition
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Term
| This packet is sent to confirm that the LSU message has been received. |
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Definition
| Link State Acknowledgement (LSAck) |
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Term
| Router R2 receives the multicast address and the router R1 as its neighbor. This is the _____________. |
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Definition
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Term
| R2 sends a unicast response via hello packet to router R1. Router R1 receives the Hello packet and sees its name is listed in the unicast hello packet. It knows that now it has a two way neighbor relationship with Router R2. This is called as _________________. |
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Definition
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Term
| After the DR and BDR are elected and they both form adjacency with each router on the segment a master-slave relationship is formed. The master is elected on the basis of the highest router ID. This is the ______________. |
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Definition
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Term
| The master and slave routers now exchange Database Description packets. This state represents the _______________. |
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Definition
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Term
| Routers exchange the DBD and see if the DBD contains newer information of the network. It sends an LSR to the routers that has sent the DBD. The router updates the LSR sending router with a LSU which is then acknowledges by the LSU receiving router. This state is called as ______________. |
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Definition
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Term
| After the routers have exchanges the DBD the finally go to the _____________. |
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Definition
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Term
| Issuing the ________________ command in the global mode takes us to the OSPF configuration mode. |
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Definition
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Term
| Issue the ____________ subcommand for configuring the router ID. |
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Definition
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Term
| Configure the network that need to run OSPF with the ______________ command. |
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Definition
| network ip-address wildcard-mask area area-id |
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Term
| What OSPF command allows you to change the hello interval? |
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Definition
| ip ospf hello-interval time |
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Term
| To change the OSPF network type, issue the _______________ interface level command. |
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Definition
| ip ospf network [network_type] |
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Term
| The default OSPF network type on a multipoint Frame-Relay interfaces is _______________. |
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Definition
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Term
| the OSPF election does not support __________. This means that once a device is elected the DR no other device may assumes this status unless the DR goes down. |
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Definition
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Term
| This also implies that the only way to ensure that a device is elected as the DR is to remove all other devices from the election process by setting their priority to __. |
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Definition
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Term
| OSPF supports both clear text and ________ authentication. |
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Definition
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Term
| To enable OSPF area authentication, issue the routing process subcommand ______________. |
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Definition
| area 0 authentication [message-digest] |
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Term
| What does EIGRP stand for? |
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Definition
| Enhanced Interior Gateway Routing Protocol |
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Term
| What multicast address is used by EIGRP to send hello packets? |
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Definition
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Term
| This EIGRP packet is used to send routing updates. This packet requires acknowledgement |
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Definition
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Term
| This EIGRP packet is used to establish neighbor relationships. |
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Definition
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Term
| This EIGRP packet queries neighbors about routing information. This packet also requires acknowledgement. |
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Definition
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Term
| With this packet EIGRP replies to queries. This packet also requires acknowledgement. |
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Definition
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Term
| This EIGRP packet is used to acknowledge reliable packets. |
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Definition
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Term
EIGRP uses ___________ Protocol to send EIGRP multicast
updates. |
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Definition
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Term
| What three tables does EIGRP build? |
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Definition
| Neighbor table, topology table and IP routing table. |
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Term
| _____________ keep the information of the states of neighbors. |
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Definition
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Term
| What command will allow us to see the EIGRP neighbor table? |
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Definition
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Term
| EIGRP ___________ table contains all routes in the network. It contains the best path as well as the worst path. |
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Definition
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Term
| On the basis of __________ EIGRP chooses the best possible routes to a network these routes form the IP routing table. |
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Definition
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Term
| The 5 metric values used in EIGRP are: |
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Definition
Bandwidth
Delay
Reliability
Load
MTU |
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Term
| As the update received in the EIGRP contains the metric of the route forwarder i.e. the router that send the route. Thus receiving router can calculate the metric of the sending neighbor router which is called as the _____________. |
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Definition
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Term
| In the routing table the route that is the best route to reach a particular network among the all available routes is called as the ______________. |
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Definition
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Term
| The route that contains the best feasible distance is called as the ______________. |
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Definition
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Term
| The routes that are the second best match to the destination are called the _____________ they are used to as the best path in case the successor route fails. |
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Definition
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Term
This ICMP message specifies to the host that there is problem in the delivery of
packet. |
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Definition
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Term
| This ICMP message specifies that the time intended for the packet to be delivered to the destination has been expired. |
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Definition
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Term
This ICMP message specifies to the sender that there is a best path available to send
packet to the destination. |
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Definition
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Term
| These messages are used by the ping command to verify connectivity. |
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Definition
| Echo Request and Echo Reply |
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Term
| What additional capabilities does extended ping have? |
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Definition
| In this we can even specify the source IP address and the destination IP address |
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Term
| With the help of the ___________ command we can know the exact place from where the network connectivity is broken. |
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Definition
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Term
| ___________ is a method to access remote devices from a host. |
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Definition
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Term
| This command displays the various interfaces on which EIGRP is running. |
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Definition
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Term
| This command displays the contents configured with the network command. |
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Definition
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Term
| This command displays the various interfaces on which EIGRP is running. |
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Definition
| Sh ip eigrp interface brief |
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Term
| This command displays the neighbors running EIGRP and their state. |
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Definition
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Term
| For checking any authentication problems in the network or if EIGRP routers are not becoming neighbors due to authentication problem issue ________________ command. |
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Definition
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Term
| To check neighbor relationship problems in OSPF the most important command is ______________. |
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Definition
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Term
| To check the router‘s memory size and IOS image issue the command ____________. |
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Definition
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Term
| This command displays various processes that are running on the Cisco router. |
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Definition
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Term
| This command displays the routers memory statistics. |
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Definition
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Term
| This command displays the buffer pools on the router. |
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Definition
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Term
| This command monitors the stack use of the processors and interrupt routines. |
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Definition
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Term
| This command displays the active configuration of the router. |
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Definition
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Term
| This command displays the configuration stored in the router. |
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Definition
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Term
| This command display the hardware interface on the router and their status. |
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Definition
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Term
| It is recommended to use the ___________ command as it is much more secure than the enable password command. |
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Definition
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Term
| If the password is encrypted no one will be able to see the actual password in the configuration output. This is done with the _______________ command. |
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Definition
| service password encryption |
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Term
| Privilege level 1 is commonly referred to as ____________. |
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Definition
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Term
| Privilege level 15 is commonly referred to as __________. |
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Definition
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