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IP Routing Technologies Flashcards

1
Q

Which IOS command is used to view information about Open Shortest Path First (OSPF) routing processes?

A

the show ip ospf command

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2
Q

The Open Shortest Path First (OSPF) routing protocol uses which algorithm to select the optimal path?

A

the Dijkstra algorithm

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3
Q

What multicast address is used by Open Shortest Path First (OSPF) for all SPFRouters?

A

224.0.0.5

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4
Q

Which IOS command is used to view the number of EIGRP packets sent and received?

A

the show ip eigrp traffic command

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5
Q

Which packet type is used by EIGRP to ask neighbors about routing information?

A

Query packet

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6
Q

Which packet type is used by EIGRPto send routing updates?

A

Update packet

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7
Q

Which IOS command is used to copy the configuration stored in Non-Volatile Random Access Memory (NVRAM) to Random Access Memory?

A

the copy startup-configuration running configuration command.

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8
Q

Which routing protocols support authentication with clear-txt passwords and Message Digest-5 (MD5)?

A

Intermediate System-to-Intermediate System (IS-IS) and Open Shortest Path First (OSPF)

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9
Q

Which metric is used by Routing Information Protocol (RIP) for it path selection?

A

the Hop-count metric

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10
Q

Which parameter of the clear ip ospf command is used to reset the Open Shortest Path First (OSPF) process

A

the process parameter

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11
Q

What is the default administrative distance (AD) value for unknown origin routes?

A

255

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12
Q

Which protocol is used by EIGRP to manage EIGRP packets?

A

RTP

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13
Q

Which IOS command is used to view the OSPF routing table entries to an ABR and ASBR?

A

show ip ospf border-routers command

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14
Q

Which IOS command is used to view the configuration of system hardware, software version, and boot images?

A

the show version command

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15
Q

Which routing protocols include the subnet mask in the route advertisement and support Variable Length Subnet Masking (VLSM)?

A

Classless routing protocols

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16
Q

Which IOS command is used to reinstall a previously removed interior or exterior route?

A

the discard-route command

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17
Q

Which algorithm is used by EIGRP to select the best path to the destination?

A

Diffusing Update Algorithm (DUAL)

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18
Q

Which IOS command is used to view the OSPF database for a specific router?

A

the show ip ospf database command

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19
Q

Which IP protocol is used by OSPF?

A

89

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20
Q

Which packet types is used by EIGRP to establish neighbor relationships?

A

Hello/Ack packet

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21
Q

Which IOS command is used to view the current state of the active routing protocol process?

A

the show ip protocols command

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22
Q

Which routing protocol supports point-to-point and point-to-multipoint connections?

A

OSPF

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23
Q

Which routing protocols do not include the subnet mask in the route advertisement?

A

Classful routing protocols

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24
Q

Which IOS command displays information related to router interfaces configured for EIGRP protocol?

A

the show ip eigrp interfaces command

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25
Which packet type is used by EIGRP to get specific information from one or more neightbors?
Request packet
26
Which routing protocol is not recommended for enterprise networks?
Intermediate System-to-Intermediate System (IS-IS)
27
Which updates are sent as soon as a change in the network topology is discovered?
Triggered updates
28
Which IOS command is used to view the information related to the system
the show system command
29
Which IOS command is used to view the OSPF traffic statistics?
the show ip ospf traffic command
30
Which IOS command is used to view interface card controllers?
the show controllers command
31
Which IOS command is used to modify the buffer size used to load the configuration file?
the boot buffer size command
32
Which IOS command is used on a Cisco router to display EIGRP DUAL states?
the show ip eigrp topology command
33
Which IOS command displays the EIGRP adjacencies
the show ip eigrp neighbors command
34
Which IOS command is used to view the information about interfaces configured for EIGRP?
the show ip eigrp interfaces command
35
Which IOS command is used to configure the bandwidth percentage to 80 while configuring EIGRP with autonomous number 20?
the router(config-if)# ip bandwidth-percent eigrp 20 80 command
36
Which command is used to enable EIGRP on a router with an autonomous number 20?
the router eigrp 20 command
37
Which Cisco IOS command displays the number of EIGRP packets sent and received?
the show ip eigrp traffic command
38
Which IOS is used to copy the configuration stored in Random Access Memory (RAM) to Non-Volatile Random Access Memory (NVRAM)?
the copy running-config startup-config command
39
Which IOS command will enable a Cisco router to select a default route when routing to an unknown subnet of a network for which it knows the major network?
the ip classless command
40
Which two routing protocols are Cisco Systems' proprietary routing protocols?
EIGRP and IGRP
41
What multicast address is used by OSPF for all DRouters?
224.0.0.6
42
Which IOS command is used to view the Read Only and the upgrade ROM monitor image versions on the router?
the rommon>showmon command
43
Which IOS command is used to view the OSPF link-state advertisements (LSAs) waiting to be re-sent?
the show ip ospf retransmission-list command
44
Which technique is used to stop routing loops by preventing route update information from being sent back out of the interface on which it is arrived?
Split Horizion
45
Which IOS command is used to view OSPF link-state advertisements (LSAs) requested by a router?
the show ip ospf request-list command
46
Which EIGRP packet is not sent reliably over the network?
Acknowledgement packet
47
Which routing protocol is used in large service provider networks?
Intermediate System-to-Intermediate System (IS-IS)
48
Which two routing protocols perform equal and unequal load balancing by default?
EIGRP and IGRP
49
Which IOS command is used to configure the OSPF authentication type for an interface?
the ip ospf authentication command
50
Which IOS command is used to remove the redistribution based on the OSPF routing process ID?
the clear ip ospf command
51
What is the default administrative distance (AD) value for an EIGRP summary route?
5
52
Which IOS command is used to view the OSPF shortest path first (SPF) calculations statistics?
the show ip ospf statistics command
53
Which IOS command is used to set the metric values for EIGRP in a route map?
the set metric command
54
What is the default administrative distance External EIGRP?
170
55
Which IOS command is used to turn off route summarization?
the no auto-summary command
56
What is the default administrative distance (AD) value for a directly connected interface?
0
57
What is the default administrative distance (AD) value for an Exterior Gateway Protocol (EGP) route?
140
58
The OSPF routing protocol uses which metric for optimal path calculations?
Cost
59
Which IOS command is used to accept exterior or default routing information into EIGRP processes?
the default-information command
60
Which Cisco proprietary routing protocol does not require a hierarchical physical topology?
EIGRP
61
Which IOS command will specify the device and configuration file used by the Cisco router to boot during initialization?
the boot config command
62
What is the default administrative distance for EIGRP?
90
63
Which technique is used to prevent routers from making a change that will affect rotes for a specified period of time?
Holddown timers
64
Which EIGRP packet type is used for neighbor discovery?
Hello packet
65
Which EIGRP packet type is sent in response to a query packet?
Reply packet
66
Which EIGRP packet type is sent when a router performs route computation and cannot find a feasible successor?
Query packet
67
What is the default administrative distance for OSPF?
110
68
Which IOS command is used to view active processes on the router?
the show processes cpu command
69
Which formula is used by EIGRP to calculate the composite metric?
Metric = [K1 * Bandwidth + (K2 * Bandwidth) / (256 load) + K3 * Delay] * [K5 / (reliability + K4)]
70
Which IOS command can be used to verify the routes which are summarized for an interface?
the show ip protocols command
71
What is the default administrative distance for static routes?
1
72
What are the metrics used by EIGRP for its path selection?
Bandwidth, delay, load, and reliability
73
Which IOS command is used to allow automatic summarization of subnet routes into network-level routes?
the auto-summary command
74
Which parameter of the clear ip ospf command is used to clear OSPF route redistribution?
the redistribution command
75
Which IOS command is used to allow tuning of EIGRP metric calculations?
the metric weights command
76
What type of update is used by OSPF to provide fast convergence?
Link-state updates
77
Which IOS command is used to view the contents of flash memory?
the show flash command
78
Which parameter of the clear ip ospf command specifies the OSPF counters?
the counters parameter
79
Which IOS command is used to set metrics for the EIGRP ?
the default-metric command
80
Which IOS command is used to view the type of debugging enabled on the router
the show debugging command
81
Which IOS command is used to view the contents of the boot environment variable and bootldr environment variable?
the show bootvar command
82
Which IOS command is used to enable autoloading of configuration files from the network server?
the service config command
83
Which modules are used by EIGRP to independently support IP , IPX, and AppleTalk routed protocols?
Protocol-dependent modules
84
What command configures OSPF to inject a router's default external route into OSPF?
The "default-information originate" command
85
What command configures OSPF to inject a router's default external route into OSPF?
The "default-information originate" command
86
What is the correct order of the transitions of neighbor states in OSPF?
``` Down Init 2-way Exstart Exchange Loading Full ```
87
What advertises a network over the interface over which it was learned with an infinite metric
Poison Reverse
88
What is used to flood the network with a topology change, allowing all routers to update their topology and routing tables?
LSAs (Link State Advertisements)
89
What command is used to manually configure a priority on a specific interface?
ip ospf priority#
90
How is the designated router determined by OSPF on a multi-access network segment?
The highest interface priority, then the highest RID
91
What establishes neighbor relationships in EIGRP?
Hello/Ack. The Ack packet is used to provide acknowledgement of a reliable packet.
92
In EIGRP what send routing updates?
Update
93
What can you use in EIGRP to ask neighbors about routing information?
Query
94
What provides a response to queries about routing information in EIGRP?
Reply
95
Within EIGRP what gains specific information from one or more neighbors?
Requests
96
What is the default sequence of a router searching for an IOS?
1. Flash memory 2. TFTP 3. ROM (Read-Only Memory)
97
What are the five (5) classless routing protocols?
Open Shortest Path First (OSPF) Enhanced Interior Gateway Routing Protocol (EIGRP) Border Gateway Protocol (BGP) Routing Information Protocol Version 2 (RIPv2) Intermediate-System-to-Intermediate-System (IS-IS)
98
What are the classful routing protocols?
Interior Gateway Routing Protocol (IGRP) | Routing Information Protocol Version 1 (RIPv1)

CCNA R&S (7 decks)

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