[Free] 2017(Nov) Dumps4cert Testinsides Cisco 300-101 Dumps with VCE and PDF Download 61-70

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Implementing Cisco IP Routing

Question No: 61 – (Topic 5)

Refer to the following access list. access-list 100 permit ip any any log

After applying the access list on a Cisco router, the network engineer notices that the router CPU utilization has risen to 99 percent. What is the reason for this?

  1. A packet that matches access-list with the quot;logquot; keyword is Cisco Express Forwarding switched.

  2. A packet that matches access-list with the quot;logquot; keyword is fast switched.

  3. A packet that matches access-list with the quot;logquot; keyword is process switched.

  4. A large amount of IP traffic is being permitted on the router.

Answer: C

Question No: 62 – (Topic 5)

For troubleshooting purposes, which method can you use in combination with the “debug ip packet” command to limit the amount of output data?

  1. You can disable the IP route cache globally.

  2. You can use the KRON scheduler.

  3. You can use an extended access list.

  4. You can use an IOS parser.

  5. You can use the RITE traffic exporter.

Answer: C

Question No: 63 – (Topic 5)

What does the following access list, which is applied on the external interface FastEthernet 1/0 of the perimeter router, accomplish?

router(config)#access-list 101 deny ip 10.0.0.0 0.255.255.255 any log

router (config)#access-list 101 deny ip 192.168.0.0 0.0.255.255 any log

router (config)#access-list 101 deny ip 172.16.0.0 0.15.255.255 any log router (config)#access-list 101 permit ip any any

router (config)#interface fastEthernet 1/0 router (config-if)#ip access-group 101 in

  1. It prevents incoming traffic from IP address ranges 10.0.0.0-10.0.0.255, 172.16.0.0- 172.31.255.255, 192.168.0.0-192.168.255.255 and logs any intrusion attempts.

  2. It prevents the internal network from being used in spoofed denial of service attacks and logs any exit to the Internet.

  3. It filters incoming traffic from private addresses in order to prevent spoofing and logs any intrusion attempts.

  4. It prevents private internal addresses to be accessed directly from outside.

Answer: C

Question No: 64 – (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: 65 – (Topic 5)

Refer to the exhibit.

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R1 and R2 belong to the RIP routing domain that includes the networks 10.20.0.0/16 and

10.21.0.0/16. R3 and R4 are performing two-way route redistribution between OSPF and RIP. A network administrator has discovered that R2 is receiving OSPF routes for the networks 10.20.0.0/16 and 10.21.0.0/16 and a routing loop has occurred.

Which action will correct this problem?

  1. Apply an inbound ACL to the R2 serial interface.

  2. Change the RIP administrative distance on R3 to 110.

  3. Configure distribute-lists on R3 and R4.

  4. Set the OSPF default metric to 20.

  5. Change the OSPF administrative distance on R3 to 110.

Answer: C Explanation:

Distribute List is Like an access-list, use to deny or permit the routing update to pass through a router/interface. Distribute List allow you apply an access list to a routing updates.

It can be apply on in or out bond of an interface under a routing process. e.g in fig. R1 want to send a routing update to it neighbor, this update will go through from interface S0/0, router will check, is there some Distribute List apply to this interface. If there is a Distribute List which would contain the allow route to pass through this interface.

Question No: 66 – (Topic 5)

Router RTA is configured as follows:

RTA (config)#router rip

RTA(config-router)#network 10.0.0.0

RTA(config-router)#distribute-list 44 in interface BRIO RTA(config-router)#exit

RTA(config)#access-list 44 deny 172.16.1.0 0.0.0.255 RTA(config)#access-list 44 permit any

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What are the effects of this RIP configuration on router RTA? (Choose two)

  1. no routing updates will be sent from router RTA on interface BRIO to router RTX

  2. router RTA will not advertise the 10.0.0.0 network to router RTX

  3. the route to network 172.16.1.0 will not be entered into the routing table on router RTA

  4. user traffic from the 172.16.1.0 network is denied by access-list 44

  5. the routing table on router RTA will be updated with the route to router RTW

Answer: C,E Explanation:

Distribute list are used to filter routing updates and they are based on access lists. In this case, an access list of 44 was created to deny the route from network 172.16.1.0/24 so this route will not be entered into the routing table of RTA. But the route from RTW can be entered because it is not filtered by the access list A and B are not correct because the distribute list is applied to the inbound direction of interface BRI0 so outgoing routing updated will not be filtered.

Distribute list just filters routing updates so user traffic from network 172.16.1.0 will not be denied.

Question No: 67 – (Topic 5)

Which traffic does the following configuration allow?

ipv6 access-list cisco

permit ipv6 host 2001:DB8:0:4::32 any eq ssh line vty 0 4

ipv6 access-class cisco in

  1. all traffic to vty 0 4 from source 2001:DB8:0:4::32

  2. only ssh traffic to vty 0 4 from source all

  3. only ssh traffic to vty 0 4 from source 2001:DB8:0:4::32

  4. all traffic to vty 0 4 from source all

Answer: C

Question No: 68 – (Topic 5)

Into which two types of areas would an area border router (ABR) inject a default route? (Choose two.)

  1. stub

  2. the autonomous system of an exterior gateway protocol (EGP)

  3. NSSA

  4. totally stubby

  5. the autonomous system of a different interior gateway protocol (IGP)

  6. area 0

Answer: A,D Explanation: Explanation

Both stub area amp; totally stubby area allow an ABR to inject a default route. The main difference between these 2 types of areas is:

Stub area replaces LSA Type 5 (External LSA – created by an ASBR to advertise network from another autonomous system) with a default route Totally stubby area replaces both LSA Type 5 and LSA Type 3 (Summary LSA – created by an ABR to advertise network from other areas, but still within the AS, sometimes called interarea

routes) with a default route.

Below summarizes the LSA Types allowed and not allowed in area types:

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Question No: 69 – (Topic 5)

Which three statements are true when configuring redistribution for OSPF? (Choose three)

  1. The default metric is 10.

  2. The default metric is 20.

  3. The default metric type is 2.

  4. The default metric type is 1.

  5. Subnets do not redistribute by default.

  6. Subnets redistribute by default.

Answer: B,C,E

Question No: 70 – (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

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