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NEW QUESTION # 46
Click the exhibit button.
Two neighboring OSPF routers have exchanged the packets shown. What state is the adjacency in?
- A. Full; both routers are exchanging Helios to maintain the adjacency.
- B. The adjacency is in the exchange state.
- C. The adjacency is down.
- D. The adjacency is in exstart state.
Answer: D
NEW QUESTION # 47
Click the exhibit button.
Which of the following would correctly configure routers R2, R3, and R4?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: C
NEW QUESTION # 48
An OSPF adjacency is stuck in the exstart state. What is the most likely cause?
- A. The MTU does not match on both interfaces.
- B. The interfaces are configured as point-to-point on one side and broadcast on the other.
- C. The router ID is the same on both routers.
- D. An OSPF Hello has not been received from the neighbor.
- E. OSPF is not enabled on one of the routers.
Answer: A
NEW QUESTION # 49
A default route for a client is also known as the:
- A. Default path
- B. Default gateway
- C. Proxy ARP
- D. Gateway path
Answer: B
NEW QUESTION # 50
What causes an adjacency to change from down to two ways?
- A. When a router receives a database description packet from a neighbor.
- B. When a router receives a Hello packet that contains its own router ID in the neighbor list from a neighbor.
- C. When a link state update is received in response to a link state request.
- D. When a link state acknowledgement is received in response to a link state update.
Answer: B
NEW QUESTION # 51
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding type 4 LSA generation is true?
- A. Router R3 generates a type 4 LSA that is flooded to area 0, and router R6 generates a type 4 LSA that is flooded to area 2.
- B. Router R3 generates a type 4 LSA that is flooded to areas 0 and 2.
- C. Router R1 generates a type 4 LSA that is flooded to areas 0, 1, and 2.
- D. Router R3 generates a type 4 LSA that is flooded to areas 0, 1, and 2.
Answer: A
NEW QUESTION # 52
In an OSPF Hello packet what fields must match all neighbor routers on the segment? (Choose 3)
- A. DR and BDR addresses
- B. Area ID
- C. The list of neighbors
- D. Hello and Dead Intervals
- E. Stub flag
Answer: B,D,E
NEW QUESTION # 53
Which of the following statements regarding area border routers in an OSPF network is true?
- A. An OSPF network needs at least one area border router to function.
- B. By definition, an area border router must perform route summarization between areas.
- C. The term backbone router has the same definition as the term area border router.
- D. Area border routers connect the backbone area to other areas in an OSPF network.
Answer: D
NEW QUESTION # 54
An interface is configured on a router for OSPF but the command "show router ospf neighbor" does not show any neighbors. Which of the following is NOT a possible cause?
- A. An OSPF database description packet has not been received from the neighbor.
- B. The interface is included in a different area than the neighbor router.
- C. The interface facing the neighbor is down.
- D. The router has not received a valid OSPF Hello packet from its neighbor.
Answer: A
NEW QUESTION # 55
Graceful Restart is supported by what IGPs?
- A. RIPv1 and RIPv2
- B. IS-IS
- C. BGP
- D. OSPF
Answer: B,D
NEW QUESTION # 56
What is the default preference value for a static route in the Nokia 7750 SR router?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 57
Which of the following statements best describes the function of an OSPF Type 4 LSA?
- A. A Type 4 LSA is originated by an ABR that is connected to a stub area. The LSA is injected into the stub area to provide routing information.
- B. A Type 4 LSA is originated by an ASBR to describe a route to itself to routers outside the area.
- C. A Type 4 LSA is originated by an ABR to describe a route to an ASBR to routers outside the area.
- D. A Type 4 LSA is originated by an ABR that is connected to a stub area. The LSA is injected into the backbone area to provide routing information.
Answer: C
NEW QUESTION # 58
What command will show the OSPF neighbors, and their status on the Nokia 7750 SR?
- A. Show ospf neighbors
- B. Show router ospf neighbors
- C. Show router ospf adjacency
- D. Show ospf adjacency
Answer: B
NEW QUESTION # 59
An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action is taken by the router?
- A. The link state information is regarded as old and nothing is done.
- B. The link state information is not populated in the database and an acknowledgement is sent
- C. The link state information is not populated in the database but is forwarded to all neighbors
- D. The link state information already in the database is overwritten and the age is reset
Answer: B
NEW QUESTION # 60
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding Type 4 LSA generation is true?
- A. Router R1 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.
- B. Router R3 generates a Type 4 LSA that is flooded to areas 0 and 2.
- C. Router R3 generates a Type 4 LSA that is flooded to area 0, and router R6 generates a Type 4 LSA that is flooded to area 2.
- D. Router R3 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.
Answer: C
NEW QUESTION # 61
Which of the following LSA types stay within an OSPF area, and are not flooded outside of the area? Choose two answers.
- A. Network LSA
C Summary network LSA - B. Summary router LSA
- C. Type 5 (AS external) LSAs
- D. Router LSA
Answer: A,D
NEW QUESTION # 62
How many databases does a Link State routing protocol use?
- A. One
- B. Two
- C. Four
- D. Three
Answer: D
NEW QUESTION # 63
What are the types of networks supported on an Nokia 7750 SR for OSPF? (Choose 2)
- A. Point-to-Point
- B. Non-Broadcast Multi-Access
- C. Broadcast
- D. Point-to-Multipoint
Answer: A,C
NEW QUESTION # 64
Refer to the exhibit.
Assume that OSPFv3 is properly configured on all routers and that R4 advertises its system prefix into Area 0. Which of the following statements best describes how R5 learns R4's IPv6 system prefix?
- A. With a Router LSA originated by R5
- B. With an Inter-Area Prefix LSA originated by R4
- C. With a Router LSA originated by R1
- D. With a Router LSA originated by R4
- E. With an Inter-Area Prefix LSA originated by R5
- F. With an Inter-Area Prefix LSA originated by R1
Answer: F
NEW QUESTION # 65
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