Refer to the exhibit.
Given the output for this command, if the router ID has not been manually set, what router ID will
OSPF use for this router?
A.
10.1.1.2
B.
10.154.154.1
C.
172.16.5.1
D.
192.168.5.3
Refer to the exhibit.
Given the output for this command, if the router ID has not been manually set, what router ID will
OSPF use for this router?
A.
10.1.1.2
B.
10.154.154.1
C.
172.16.5.1
D.
192.168.5.3
To select which router will become DR they will compare their router-IDs. The router with highest (best) router-ID will become DR. The router-ID is chosen in the order below:
+ The highest IP address assigned to a loopback (logical) interface.
+ If a loopback interface is not defined, the highest IP address of all active router’s physical interfaces will be chosen.
In this question, the IP addresses of loopback interfaces are not mentioned so we will consider IP addresses of all active router’s physical interfaces. Router Corp-4 (10.1.40.40) & Branch-2 (10.2.20.20) have highest “active” IP addresses so they will become DRs.
loopback1 – 10.154.154.1
No, answer is 172.16.5.1 .. 172 is higher than 10
Non-volatile random-access memory (NVRAM) is random-access memory that retains its information when power is turned off (non-volatile) <– basically a default