Cisco 300-410 Online Practice Questions and Exam Preparation

Cisco 300-410 Online Questions & Answers

• Question 61:

  Refer to the exhibit

  

  Users from the 192 168.2.0/24 network cannot connect to the 172.16 2 32/28 network. Which configuration resolves the issue?

  A. R4(config)#ip route 0.0.0.0 0.0.0.0 172.16.2.1
  B. R1(config)#route-map REDIST permit 10 R1(config-route-map)#match ip address 15 R1(config-route-map)#set metric 1000 10 255 1 1500 R1(config-route-map)#exit R1(config)#access-list 15 permit 192.168.2.0 0.0.255.255
  C. R1(config-router)#router eigrp 100 R1(config-router)#redistribute rip R1(config-router)#default-metric 10000 100 255 100 1500
  D. R1(config)#router eigrp 100 R1(config-router)#network 192.168.0.0
  A. R4(config)#ip route 0.0.0.0 0.0.0.0 172.16.2.1

• Question 62:

  What are two functions of IPv6 Source Guard? (Choose two.)

  A. It works independent from IPv6 neighbor discovery.
  B. It denies traffic from unknown sources or unallocated addresses.
  C. It uses the populated binding table for allowing legitimate traffic.
  D. It denies traffic by inspecting neighbor discovery packets for specific patterns.
  E. It blocks certain traffic by inspecting DHCP packets for specific sources.
  B. It denies traffic from unknown sources or unallocated addresses.
  C. It uses the populated binding table for allowing legitimate traffic.

  ---

  IPv6 source guard is an interface feature between the populated binding table and data traffic filtering. IPv6 source guard can deny traffic from unknown sources or unallocated addresses.

• Question 63:

  Refer to the exhibit.

  

  An engineer examines the BGP update for the IPv6 prefix 2001:db8::1/128. which should have been summarized into a /64 prefix. Which sequence of actions achieves the summarization?

  A. R1 is a route reflector client of a RR with a router ID of 1.1.1.1. and the originator of the prefix has a router ID of 3.3.3.3. Both routers belong to different ASs. The prefix is not advertised to any peer and must be advertised using the network statement on R3.
  B. R1 is a route reflector with a router ID of 3.3.3.3. and the originator of the prefix is a route reflector client, which has a router ID of 3.3.3.3. Both routers belong to the same AS Configure an aggregate address on the router with ID 1.1.1.1 for the prefix
  C. R1 is a route reflector with a router ID of 1.111. and the originator of the prefix is a route reflector client, which has a router ID of 3.3.3.3. Both routers belong to the same AS Configure an aggregate address on the router with ID 1.1.1.1 for the prefix
  D. R1 is a route reflector client of a RR with a router ID of 1.1.1.1. and the originator of the prefix has a router ID of 3.3.3.3. Both routers belong to the same AS. Configure an aggregate address on the router with ID 3 3.3.3 for the prefix.
  D. R1 is a route reflector client of a RR with a router ID of 1.1.1.1. and the originator of the prefix has a router ID of 3.3.3.3. Both routers belong to the same AS. Configure an aggregate address on the router with ID 3 3.3.3 for the prefix.

• Question 64:

  Which EIGRP packet type is sent as a multicast when a new route is discovered, and sent as a unicast to synchronize topology tables when neighbors initialize?

  A. ACK
  B. Hello
  C. Update
  D. Replies
  E. Queries
  C. Update

  ---

  EIGRP update packets are sent as a multicast when a new route is discovered, and sent as a unicast to synchronize topology tables when a neighboring router initializes.

  Whenever EIGRP only needs to communicate with a single neighbor, it sends a unicast to that neighbor instead of the standard multicast. In this case, it unicasts a packet to update a new EIGRP router on the network with the information that all other routers on that network already know.

  Hellos for neighbor discovery and maintenance are always multicasts.

  ACKs are hellos without data, and are always unicast.

  Queries are always multicast.

  Replies to queries are always unicast.

  Objective:

  Layer 3 Technologies

  Sub-Objective:

  Describe EIGRP packet types

  References:

  Internetworking Technology Handbook > Enhanced Interior Gateway Routing Protocol (EIGRP) > EIGRP Packet Types

• Question 65:

  Refer to the exhibit.

  

  The company implemented uRPF to address an anti spoofing attack. A network engineer received a call from the IT security department that the regional data center is under an IP attack Which configuration must be implemented on R1 to resolve this issue?

  A. interface ethernet0/0 ip verify unicast reverse-path
  B. interface ethernet0/1 ip verify unicast reverse-path
  C. interface ethernet0/0 ip unicast RPF check reachable-via any allow-default allow-self-ping
  D. interface ethernet0/1 ip unicast RPF check reachable-via any allow-default allow-self-ping
  B. interface ethernet0/1 ip verify unicast reverse-path

• Question 66:

  Refer to the exhibit.

  

  SW101 could not transfer its startup configuration to a TFTP server. No ACL is configured on the switch, and it can successfully ping the host. Which action resolves the issue?

  A. Open UDP port 69 on the TFTP server.
  B. Open UDP port 179 on the TFTP server.
  C. Configure a FW in the middle to allow bidirectional communication for TFTP.
  D. Start the TFTP server on the host.
  D. Start the TFTP server on the host.

• Question 67:

  You have implemented IPv6 automatic 6-to-4 tunneling between three IPv6 subnets as shown in the network exhibit. (Click the Exhibit(s) button.)

  

  You have used the following commands to implement the automatic 6-to-4 tunnel:

  

  Your supervisor has assigned the task of verifying the automatic 6-to-4 tunnel to one of your colleagues. Your colleague runs the show running-config command and finds that incorrect IPv6 addresses have been assigned to the tunnel interfaces of the routers. Which of the following IPv6 addresses should be assigned to rectify the problem? (Choose two.)

  A. 2002::c0a8:2d01/64 to the Fa0/1 interface of rtrA
  B. 2002:c0a8:4b01::1/64 to the Fa0/1 interface of rtrB
  C. 2002:c0a8:7d01::1/64 to the Fa0/1 interface of rtrC
  D. 2002:c0a8:4b01::1/64 to the Fa0/1 interface of rtrA
  B. 2002:c0a8:4b01::1/64 to the Fa0/1 interface of rtrB
  C. 2002:c0a8:7d01::1/64 to the Fa0/1 interface of rtrC

  ---

  The 2002:c0a8:4b01::1/64 and the 2002:c0a8:7d01::1/64 IPv6 addresses should be assigned to the Fa0/1 interfaces of rtrB and rtrC, respectively. Automatic 6-to-4 tunnels embed the IPv4 address of the tunnel interfaces into the second and third quartets of the IPv6 address that has the 2002::/16 prefix. To assign IPv6 addresses to the tunnel interfaces, perform the following steps:

  1. Convert the IPv4 address of the tunnel interface into binary.

  2. Convert the binary equivalent of the IPv4 address into hexadecimal (IPv6).

  3. Append the hexadecimal equivalent to the 2002::/16 prefix to form the IPv6 prefix of the tunnel interface.

  For the Fa0/1 interface of rtrB, its IPv4 address of 192.68.75.1 is equivalent to the IPv6 address c0a8:4b01. This address is then appended to the 2002::/16 prefix, resulting in 2002:c0a8:4b01::/48. The remaining host bits can be filled with zeros. Similarly, the IPv4 address of the Fa0/1 interface of rtrC is converted to the IPv6 address 2002:c0a8:7d01::/48.

  The 2002::c0a8:2d01/64 IPv6 address should not be assigned to the Fa0/1 interface of rtrA. The Fa0/1 interface of rtrA has the IPv4 address 192.168.45.1. The IPv6 equivalent of the IPv4 address, which is c0a8:2d01, should be embedded in the second and third quartets of the IPv6 address instead of the seventh and eighth quartets. IPv4 addresses are embedded into the last 32 bits for ISATAP tunnels.

  The 2002:c0a8:4b01::1/64 IPv6 addresses should not be assigned to the Fa0/1 interface of rtrA. This IPv6 address is the equivalent of the IPv4 address 192.168.75.1, which is the address of the Fa0/2 interface of rtrB and not rtrA. Therefore, this IPv6 address should be assigned to the Fa0/1 interface of rtrB.

  Objective:

  Network Principles Sub-Objective: Recognize proposed changes to the network

  References:

  Cisco Press > Articles > Cisco Certification > CCNP > CCNP Self-Study: Advanced IP Addressing Cisco Press > Articles > Network Technology > General Networking > Cisco Self-Study: Implementing Cisco IPv6 Networks (IPV6) Cisco > Support > Technology Support > IP > IP Version 6 (IPV6) > Configure > Configuration Examples and Technotes > IPv6 Tunnel Through an IPv4 Network Cisco IOS IPv6 Implementation Guide, Release 15.2MandT > Implementing Tunneling for IPv6

• Question 68:

  Refer to the exhibit.

  

  An engineer is troubleshooting a prefix advertisement issue from R3, which is not directly connected to R1.

  Which configuration resolves the issue?

  A. R2(config)#router bgp 64512 R2(config-router)#neighbor 192.168.20.10 next-hop-self
  B. R1(config)#router bgp 64512 R1(config-router)#neighbor 192.168.10.20 next-hop-self
  C. R1(config)#router bgp 64512 R1(config-router)#neighbor 192.168.20.20 next-hop-self
  D. R2(config)#router bgp 64512 R2(config-router)#neighbor 192.168.10.20 next-hop-self
  A. R2(config)#router bgp 64512 R2(config-router)#neighbor 192.168.20.10 next-hop-self

• Question 69:

  OSPF area border routers (ABRs) advertise a default route to stub and totally stubby areas.

  Which command is the BEST command to configure a cost of 25 for the default route advertised to area 1?

  A. Router(config-router)# area 1 cost 25
  B. Router(config-router)# area 1 default 25
  C. Router(config-router)# area 1 default-cost 25
  D. Router(config-router)# area 1 default-route-cost 25
  C. Router(config-router)# area 1 default-cost 25

  ---

  The correct answer is area 1 default-cost 25. Even though another option (area 1 default 25) is a configurable abbreviation for the command, the more correct answer explicitly specifies the default-cost parameter. The correct syntax for the area default-cost command is shown below:

  Router(config-router)# area area-id default-cost cost

  If you have multiple border routers between two areas, you might prefer one exit-point router over the other for that area. By configuring one with a lower cost than the other, it will become the preferred exit point. If that router or its links were to fail, then the routers interior to the area would route through the second-best exit point. You could also set the default costs to values that are close to achieve better load balancing. The default default-cost is 1. Please see the network shown in the graphic.

  

  Objective:

  Layer 3 Technologies

  Sub-Objective:

  Configure and verify OSPF path preference

  References:

  Cisco IOS Master Command List, Release 12.4 > a through b > area default-cost

• Question 70:

  DRAG DROP

  An engineer must establish a connection between two CE routers for two customers with overlapping IP addresses Customer_a is connected to interfaces Gig0/0, and Customer_b is connected to interfaces Gig0/1. Routers CE1 and CE2 are configured as follows:

  

  Drag and drop the code snippets from the right onto the boxes in the configuration to establish the needed connection. Snippets may be used more than once.

  Select and Place:

  

  

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  Explanation/Reference: