Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CCNP SP english WARISSON GOMES > OSPF > Flashcards

OSPF Flashcards

You may prefer our related Brainscape-certified flashcards:
Proverbs and Idioms flashcards
1
Q

What are the criteria for DR / BDR election?

A

Priority, Highest RID

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

With what priority does a router not participate in the DR / BDR election?

A

0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

OSPF multicast addresses?

A

224.0.0.5 All routers, 224.0.0.6 DR routers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the OSPF timers for broadcast and point-to-point networks? (both use the same timers)

A

hello 10, dead 40

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Does OSPF support keys with lifetime?

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the OSPF timers for NBMA networks, PMPe PMP NBMA?

A

30 120

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the only network type where dynamic neighbor discovery does not occur?

A

NBMA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the only two network types that require DR/BDR?

A

Broadcast and Non-Broadcast Multi-Access, both multi-access

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which LSA is created by the DR?

A

Type 2 network, sh ip ospf database network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which command allows viewing type 3 LSA?

A

show ip ospf database summary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which command to view type 5 and type 4 LSAs?

A

show ip ospf database external, show ip ospf database asbr-summary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Neighbor in Attempt state?

A

Neighbor defined manually

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the neighbor state when the first hello is received but the own RID is not yet listed?

A

init

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the neighbor state when the hello is received and the own RID is listed?

A

2way

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

In which state does the master and slave negotiation occur?

A

exstart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

In which state does the DDP exchange occur?

A

exchange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

DDP is exchanged only for information between DROTHERS

A

False

18
Q

Describe what happens in a broadcast network when a DROther’s link changes

A

The DROTHER originates LSA 1 for the DR, DR propagates via DDP to the DROTHERS, The DROTHERS request it from the DR via LSR, The DR delivers via LSU, The DROTHERS confirm via LSACK

19
Q

What is the reflood period for LSAs?

A

30 minutes

20
Q

What is the maximum ECMP path supported?

A

4 paths, modern IOS 16 to 32

21
Q

Which LSAs cause SPF recalculation?

A

1 and 2

22
Q

How to filter LSA 3 so that it does not enter area 0?

A

area 0 filter-list prefix-list FILTRO_OSPF in

23
Q

How to filter OSPF routes so they do not enter the RIB?

A

router ospf 12, area 3 filter-list prefix DENY-OSPF in, ip prefix-list DENY-OSPF: 2 entries, seq 5 deny 12.0.255.23/32, seq 10 permit 0.0.0.0/0 le 32

24
Q

What are the possibilities for route filtering?

A

Summary of filtering possibilities: Filter type 3 LSAs in ABRs, Filter type 5 LSAs in ASBRs, Filter routes to be installed in the local routing table

25
Q

What metric will be assigned to a summarized route?

A

The best metric among the subordinate routes

26
Q

What are the ways to generate a default route in OSPF?

A

area range 0.0.0.0 0.0.0.0 or summary address (ASBRs), Command default-information originate

27
Q

Which type of special area does not receive a default route by default?

A

Not So Stub

28
Q

Which LSAs are allowed in a Stub area?

A

1, 2, and 3 + default route via 3

29
Q

Which LSAs are allowed in a Not So Stub Area?

A

1, 2, 3, and 7 (without default route)

30
Q

Which LSAs are allowed in a Totally Stub Area?

A

1, 2 + default route via 3

31
Q

Which LSAs are allowed in a Totally Not So Stub Area?

A

1, 2, and 7 + default route

32
Q

Consider the topology: R1 R2 R3 R4. How should the virtual link be configured?

A

In R2 create a virtual link to the RID of R3 and vice versa, the transit area 1 must be referenced, in OSPFv3 this is done the same way but within the IPv6 unicast address family

33
Q

In which network types does the next hop change occur?

A

In point-to-multipoint

34
Q

In which network types must hellos be sent via unicast?

A

All non-broadcast, but why?

35
Q

In which network types does the router announce the interface IP as /32?

A

In PMP and PMP NB and loopback

36
Q

What is the AD for a summarized route in an ASBR?

A

254

37
Q

What is the AD for a summarized route in an ABR?

A

110

38
Q

Area x filter-list prefix-list in or out. The above command applies to which type of LSA?

A

Type 3

39
Q

The filter list command in the in direction filters LSA entering the area

A

True

40
Q

The filter list command in the out direction filters LSA entering the area

A

False

41
Q

External routes are not filtered in ABRs due to the flooding scope of type 5 LSAs being the entire domain

A

True, filtering must be done in the ASBR

CCNP SP english WARISSON GOMES (41 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions