Cisco CCNA 200-301 Questions & Answers

• Question 701:

  Refer to the exhibit. A network associate has configured OSPF with the command:

  City(config-router)# network 192.168.12.64 0.0.0.63 area 0

  After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? (Choose three.)

  

  A. FastEthernet0 /0

  B. FastEthernet0 /1

  C. Serial0/0

  D. Serial0/1.102

  E. Serial0/1.103

  F. Serial0/1.104

  Correct Answer: BCD

  The "network 192.168.12.64 0.0.0.63 equals to network 192.168.12.64/26. This network has:

  1.

  Increment: 64 (/26= 1111 1111.1111 1111.1111 1111.1100 0000) + Network address:192.168.12.64

  2.

  Broadcast address: 192.168.12.127

  Therefore all interface in the range of this network will join OSPF.

• Question 702:

  Refer to the exhibit. How will the router handle a packet destined for 192.0.2.156?

  

  A. The router will forward the packet via either Serial0 or Serial1.

  B. The router will return the packet to its source.

  C. The router will forward the packet via Serial2.

  D. The router will drop the packet.

  Correct Answer: C

• Question 703:

  Which statements describe the routing protocol OSPF? (Choose three.)

  A. It supports VLSM.

  B. It is used to route between autonomous systems.

  C. It confines network instability to one area of the network.

  D. It increases routing overhead on the network.

  E. It allows extensive control of routing updates.

  F. It is simpler to configure than RIP v2.

  Correct Answer: ACE

  The OSPF protocol is based on link-state technology, which is a departure from the Bellman-Ford vector based algorithms used in traditional Internet routing protocols such as RIP. OSPF has introduced new concepts such as authentication

  of routing updates, Variable Length Subnet Masks (VLSM), route summarization, and so forth.

  OSPF uses flooding to exchange link-state updates between routers. Any change in routing information is flooded to all routers in the network. Areas are introduced to put a boundary on the explosion of link-state updates. Flooding and

  calculation of the Dijkstra algorithm on a router is limited to changes within an area.

• Question 704:

  Refer to the exhibit. After you apply the given configurations to R1 and R2 you notice that OSPFv3 fails to start.

  

  A. The area numbers on R1 and R2 are mismatched

  B. The IPv6 network addresses on R1 and R2 are mismatched

  C. The autonomous system numbers on R1 and R2 are mismatched

  D. The router ids on R1 and R2 are mismatched

  Correct Answer: A

• Question 705:

  Which command is used to display the collection of OSPF link states?

  A. show ip ospf link-state

  B. show ip ospf lsa database

  C. show ip ospf neighbors

  D. show ip ospf database

  Correct Answer: D

  The "show ip ospf database" command displays the link states. Here is an example:

  Here is the lsa database on R2.

  R2#show ip ospf database

  OSPF Router with ID (2.2.2.2) (Process ID 1)

  Router Link States (Area 0)

  Link ID ADV Router Age Seq# Checksum Link count2.2.2.2 2.2.2.2 793 0x80000003 0x004F85 210.4.4.4 10.4.4.4 776 0x80000004 0x005643 1111.111.111.111 111.111.111.111 755 0x80000005 0x0059CA 2133.133.133.133

  133.133.133.133 775 0x80000005 0x00B5B1 2 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum10.1.1.1 111.111.111.111 794 0x80000001 0x001E8B10.2.2.3 133.133.133.133 812 0x80000001 0x004BA910.4.4.1 111.111.111.111 755 0x80000001 0x007F1610.4.4.3 133.133.133.133 775 0x80000001 0x00C31F

• Question 706:

  Which configuration command can you apply to a HSRP router so that its local interface becomes active if all other routers in the group fail?

  A. no additional config is required

  B. standby 1 track ethernet

  C. standby 1 preempt

  D. standby 1 priority 250

  Correct Answer: A

  Simply because that will be the default behavior routers would follow in the event all other routers in the HSRP group fail, then it would not keep attributes such as priority or preemption. What preemption does in summary is to make sure that the configured Priority on all routers within the same HSRP group is always respected. That is, if R1 is configured on the HSRP group with a priority of 150 but he stands as active since all other routers currently subscribed to that group have a priority 150, then will router will preempt the current active router and will take over hence becoming the new active router. With preemption disabled, the new router does not preempt the current active router, unless routers in the group have to renegotiate their roles based on each router's priority at the time of negotiation.

• Question 707:

  Which two statements about eBGP neighbor relationships are true? (Choose two.)

  A. The two devices must reside in different autonomous systems

  B. Neighbors must be specifically declared in the configuration of each device

  C. They can be created dynamically after the network statement is configured

  D. The two devices must reside in the same autonomous system

  E. The two devices must have matching timer settings

  Correct Answer: AB

• Question 708:

  Refer to the exhibit. If R1 receives a packet destined to 172.16.1.1, to which IP address does it send the packet?

  

  A. 192.168.14.4

  B. 192.168.12.2

  C. 192.168.13.3

  D. 192.168.15.5

  Correct Answer: A

  Route to 172.16.1.1 is not in the routing table so traffic will be sent to the default route (Gateway of last resort) 192.168.14.4

• Question 709:

  Refer to the exhibit. On R1 which routing protocol is in use on the route to 192.168.10.1?

  

  A. RIP

  B. OSPF

  C. IGRP

  D. EIGRP

  Correct Answer: D

• Question 710:

  Refer to exhibit. What Administrative distance has route to 192.168.10.1?

  

  A. 1

  B. 90

  C. 110

  D. 120

  Correct Answer: B