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Implementing Cisco IP Routing

Question No: 81 – (Topic 5)

What are the three modes of Unicast Reverse Path Forwarding?

1. strict mode, loose mode, and VRF mode

2. strict mode, loose mode, and broadcast mode

3. strict mode, broadcast mode, and VRF mode

4. broadcast mode, loose mode, and VRF mode

Answer: A

Question No: 82 – (Topic 5)

Refer to the exhibit.

Which two statements are correct regarding the routes to be redistributed into OSPF? (Choose two.)

1. The network 192.168.1.0 will be allowed and assigned a metric of 100.

2. The network 192.168.1.0 will be allowed and assigned a metric of 200.

3. All networks except 10.0.0.0/8 will be allowed and assigned a metric of 200.

4. The network 172.16.0.0/16 will be allowed and assigned a metric of 200.

5. The network 10.0.10.0/24 will be allowed and assigned a metric of 200.

Answer: A,D

Question No: 83 – (Topic 5)

A network administrator is troubleshooting a redistribution of OSPF routes into EIGRP.

router eigrp 1

network 10.0.0.0

!

router ospf 1

network 172.10.0.0 0.0.255.255 area 0

redistribute eigrp 1

Given the exhibited commands, which statement is true?

1. Redistributed routes will have an external type of 1 and a metric of 1.

2. Redistributed routes will have an external type of 2 and a metric of 20.

3. Redistributed routes will maintain their original OSPF routing metric.

4. Redistributed routes will have a default metric of 0 and will be treated as reachable and advertised.

5. Redistributed routes will have a default metric of 0 but will be treated as unreachable and not advertised.

Answer: B Explanation:

By default, all routes redistributed into OSPF will be tagged as external type 2 (E2) with a metric of 20, except for BGP routes (with a metric of 1).

Note: The cost of a type 2 route is always the external cost, irrespective of the interior cost to reach that route. A type 1 cost is the addition of the external cost and the internal cost used to reach that route.

Question No: 84 – (Topic 5)

To configure 6to4 on a dual-stack edge router. Which three of the following are valid in 6to4

Tunneling configuration? (Choose three)

1. IPv4 Tunnel IP address

2. Tunnel mode (6to4)

3. Tunnel Keepalives

4. IPv4 Tunnel Destination

5. IPv4 Tunnel Source.

6. 6to4 IPv6 address (within 2002 /16)

Answer: B,E,F

Topic 6, Infrastructure Services

Question No: 85 – (Topic 6)

A network engineer is asked to configure a quot;site-to-sitequot; IPsec VPN tunnel. One of the last things that the engineer does is to configure an access list (access-list 1 permit any) along with the command ip nat inside source list 1 int s0/0 overload. Which functions do the two commands serve in this scenario?

1. The command access-list 1 defines interesting traffic that is allowed through the tunnel.

2. The command ip nat inside source list 1 int s0/0 overload disables quot;many-to-onequot; access for all devices on a defined segment to share a single IP address upon exiting the external interface.

3. The command access-list 1 permit any defines only one machine that is allowed through the tunnel.

4. The command ip nat inside source list 1 int s0/0 overload provides quot;many-to-onequot; access for all devices on a defined segment to share a single IP address upon exiting the external interface.

Answer: D

Question No: 86 – (Topic 6)

Which two statements about Frame Relay Point-to-Point connections are true? (Choose Two)

1. Changing a point-to-point sub interface to a different type requires the device to be reloaded.

2. They use two DLCIs to communicate with multiple endpoints over the Frame Relay cloud.

3. The device can establish a point-to-point connection to the cloud without a DLCI.

4. They can operate normally without a DLCI map.

5. Each physical interface that extends to the Frame Relay cloud can support a single SVC.

Answer: A,B

Question No: 87 – (Topic 6)

Refer to the exhibit.

A new TAC engineer came to you for advice. A GRE over IPsec tunnel was configured, but the tunnel is not coming up.

What did the TAC engineer configure incorrectly?

1. The crypto isakmp configuration is not correct.

2. The crypto map configuration is not correct.

3. The interface tunnel configuration is not correct.

4. The network configuration is not correct; network 172.16.1.0 is missing.

Answer: A

Question No: 88 – (Topic 6)

Refer to the exhibit.

Which statement about the output of the show flow-sampler command is true?

1. The sampler matched 10 packets, each packet randomly chosen from every group of 100 packets.

2. The sampler matched 10 packets, one packet every 100 packets.

3. The sampler matched 10 packets, each one randomly chosen from every 100-second interval.

4. The sampler matched 10 packets, one packet every 100 seconds.

Answer: A

Question No: 89 – (Topic 6)

Which cisco Express Forwarding component maintains Layer 2 addressing information?

1. dCEF

2. adjacency table.

3. FIB

4. fast switching

5. RIB

Answer: B

Explanation: Adjacency TablesNodes in the network are said to be adjacent if they can reach each other with a single hop across a link layer. In addition to the FIB, CEF uses

adjacency tables to prepend Layer 2 addressing information. The adjacency table maintains Layer 2 next-hop addresses for all FIB entries. http://www.cisco.com/c/en/us/td/docs/ios/12_2/switch/configuration/guide/fswtch_c/xcfcef.ht ml

Question No: 90 – (Topic 6)

Which two methods of deployment can you use when implementing NAT64? (Choose two.)

1. stateless

2. stateful

3. manual

4. automatic

5. static

6. functional

7. dynamic

Answer: A,B

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