OSPF

After configuring GRE between two routers running OSPF that are connected to each other via a WAN link, a network engineer notices that the two routers cannot establish the GRE tunnel to begin the exchange of routing updates. What is the reason for this?

• Either a firewall between the two routers or an ACL on the router is blocking IP protocol number 47.

• Either a firewall between the two routers or an ACL on the router is blocking UDP 57

• Either a firewall between the two routers or an ACL on the router is blocking TCP 47

• Either a firewall between the two routers or an ACL on the router is blocking IP protocol number 57.

The OSPF database of a router shows LSA types 1, 2, 3, and 7 only. Which type of area is this router connected to?

• stub area

• totally stubby area

• backbone area

• not-so-stubby area

Refer to the exhibit showing complete command output. What type of OSPF router is Router A?

• internal router

• ASBR

• ABR

• edge router

Which two OSPF network types can operate without a DR/BDR relationship? (Choose Two)

• Point-to-multipoint

• Point-to-point

• nonbroadcast

• nonbroadcast multi-access

• broadcast

A network engineer enables OSPF on a Frame Relay WAN connection to various remote sites, but no OSPF adjacencies come up. Which two actions are possible solutions for this issue? (Choose Two)

• Change the network type to point-to-multipoint under WAN interface

• Enable virtual links

• Change the network type to nonbroadcast multipoint access

• Configure the neighbor command under OSPF process for each remote site

• Ensure that the OSPF process number matches among all remote sites

Refer to following:

router eigrp 1

redistribute ospf 1 route-map ospf-to-eigrp

default-metric 20000 2000 255 1 1500

!

route-map ospf-to-eigrp deny 10

match tag 6

match route-type external type-2

!

route-map ospf-to-eigrp permit 20

match ip address prefix-list pfx

set metric 40000 1000 255 1 1500

!

route-map ospf-to-eigrp permit 30

set tag 8

Which three statements accurately describe the result of applying the exhibited route map?

• The map prohibits the redistribution of all type 2 external OSPF routes with tag 6 set.

• The map prohibits the redistribution of all type 2 external OSPF routes.

• The map redistributes into EIGRP all routes that match the pfx prefix list and the five metric values 40000, 1000, 255, 1, and 1500

• All routes that do no match clauses 10 and 20 of the route map are redistributed with their tags set to 8.

• The map permits the redistribution of all type 1 external OSPF routes.

Using new backup router in spite of faulty one in ospf domain but relationship with neighbor in one interface only not working, what is the reason of this problem? (Choose Two)

• area Id mismatch

• authentication mismatch

• process id of ospf not match

• ospf timers not match

Which LSA type can exist only in an OSPF NSSA area?

• type 7 LSA

• type 1 LSA

• type 5 LSA

• type 3 LSA

Which option describes why the EIGRP neighbors of this router are not learning routes that are received from OSPF?

• The subnet defined in OSPF is not part of area 0

• Default metrics are not configured under EIGRP

• There is no overlap in the subnets advertised

• The routing protocols do not have the same AS number

Which type of address does OSPFv3 use to form neighbor adjacencies and to send LSAs?

• unicast IPv6 addresses

• link-local addresses

• multicast address FF02:5

• unicast IPv4 addresses