What’s Up With CCENT/CCNA Icnd2 Chapt. 9

10 Questions | By Ajeff | Updated: Mar 19, 2022 | Attempts: 273

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Chapter 9 of the CCENT/CCNA icnd2 is all about something that all computer geniuses should know before they can be cleared to work in the field. The quiz below is designed to help you know just how much of the chapter you understood. All the best and keep on revising!

Questions and Answers

1.

Which of the following affects the calculation of OSPF routes when all possible default values are used?
- A.
  
  Bandwidth
- B.
  
  Delay
- C.
  
  Load
- D.
  
  Reliability
- E.
  
  MTU
2.

OSPF runs an algorithm to calculate the currently best route. Which of the following terms refer to that algorithm?
- A.
  
  SPF
- B.
  
  DUAL
- C.
  
  Feasible successor
- D.
  
  Dijkstra
- E.
  
  Good old common sense
3.

Two OSPF routers connect to the same VLAN using their Fa0/0 interfaces. Which of the following settings on the interfaces of these two potentially neighboring routers would prevent the two routers from becoming OSPF neighbors?
- A.
  
  IP addresses of 10.1.1.1/24 and 10.1.1.254/25, respectively
- B.
  
  The addition of a secondary IP address on one router's interface, but not the other
- C.
  
  Both router interfaces assigned to area 3
- D.
  
  One router is configured to use MD5 authentication, and the other is not configured to use authentication
4.

Which of the following OSPF neighbor states is expected when the exchange of topology information is complete so that neighboring routers have the same LSDB?
- A.
  
  Two-way
- B.
  
  Full
- C.
  
  Exchange
- D.
  
  Loading
5.

Which of the following is true about an existing OSPF designated router?
- A.
  
  A newly connected router in the same subnet, with a higher OSPF priority, preempts the existing DR to become the new DR.
- B.
  
  A newly connected router in the same subnet, with a lower OSPF priority, preempts the existing DR to become the new DR.
- C.
  
  The DR may be elected based on the lowest OSPF Router ID.
- D.
  
  The DR may be elected based on the highest OSPF Router ID.
- E.
  
  The DR attempts to become fully adjacent with every other neighbor on the subnet.
6.

Which of the following network commands, following the command router ospf 1, tells this router to start using OSPF on interfaces whose IP addresses are 10.1.1.1, 10.1.100.1, and 10.1.120.1?
- A.
  
  Network 10.0.0.0 255.0.0.0 area 0
- B.
  
  Network 10.0.0.0 0.255.255.255 area 0
- C.
  
  Network 10.0.0.1 255.0.0.255 area 0
- D.
  
  Network 10.0.0.1 0.255.255.0 area 0
7.

Which of the following network commands, following the command router ospf 1, tells this router to start using OSPF on interfaces whose IP addresses are 10.1.1.1, 10.1.100.1, and 10.1.120.1?
- A.
  
  Network 0.0.0.0 255.255.255.255 area 0
- B.
  
  Network 10.0.0.0 0.255.255.0 area 0
- C.
  
  Network 10.1.1.0 0.x.1x.0 area 0
- D.
  
  Network 10.1.1.0 255.0.0.0 area 0
- E.
  
  Network 10.0.0.0 255.0.0.0 area 0
8.

Which of the following commands list the OSPF neighbors off interface serial 0/0?
- A.
  
  Show ip ospf neighbor
- B.
  
  Show ip ospf interface
- C.
  
  Show ip neighbor
- D.
  
  Show ip interface
- E.
  
  Show ip ospf neighbor interface serial 0/0
9.

OSPF routers R1, R2, and R3 attach to the same VLAN. R2 has been configured with the ip ospf authentication message-digest interface subcommand on the LAN interface connected to the common VLAN. The show ip ospf neighbor command lists R1 and R3 as neighbors, in an Init and Full state, respectively. Which of the following are true?
- A.
  
  R3 must have an ip ospf authentication message-digest interface subcommand configured.
- B.
  
  R3 must have an ip ospf authentication message-digest-key interface subcommand configured.
- C.
  
  R1's failure must be because of having configured an incorrect OSPF authentication type.
- D.
  
  R1's failure may or may not be related to authentication.
10.

An OSPF router learns about five possible routes to reach subnet 10.1.1.0/24. All five routes have a cost of 55, and all five are interarea routes. By default, how many of these routes are placed in the routing table?
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
- E.
  
  5