Question 179 of 367 from exam 200-301-CCNA: Implementing and Administering Cisco Solutions

Question 179 of 367 from exam 200-301-CCNA: Implementing and Administering Cisco Solutions

Question

Designated Router (ID) 10.11.11.11, Interface address 10.10.10.1
Backup Designated router (ID) 10.3.3.3, Interface address 10.10.10.3
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40

Hello due in 00:00:08

Supports Link-local Signaling (LLS)

Cisco NSF helper support enabled

IETF NSF helper support enabled

Index 4/4/4, flood queue length 0

Next 0x0(0)/0x0(0)/0x0(0)

Last flood scan length is 1, maximum is 6

Last flood scan time is 0 msec, maximum is 1 msec

Neighbor Countis 3, Adjacent neighbor count is 3

Adjacent with neighbor 10.1.1.4

Adjacent with neighbor 10.2.2.2

Adjacent with neighbor 10.3.3.3 (Backup Designated Router)
Suppress hello for 0 neighbor(s)

Refer to the exhibit.

The show ip ospf interface command has been executed on R1

How is OSPF configured?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

C.

From the output we can see there are Designated Router & Backup Designated Router for this OSPF domain so this is a broadcast network (point-to-point and point-to-multipoint networks do not elect DR & BDR)

By default, the timers on a broadcast network (Ethernet, point-to-point and point-to-multipoint) are 10 seconds hello and 40 seconds dead.

The timers on a non- broadcast network are 30 seconds hello 120 seconds dead.

From the line Neighbor Count is 3, we learn there are four OSPF routers in this OSPF domain.

https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13689-17.html