Cisco 300-410 Online Practice Questions and Exam Preparation

Cisco 300-410 Online Questions & Answers

• Question 831:

  DRAG DROP

  Drag and Drop the IPv6 First-Hop Security features from the left onto the definitions on the right.

  Select and Place:

  

  

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  Explanation/Reference:

  + Block reply and advertisement messages from unauthorized DHCP servers and relay agents: IPv6 DHCPv6 Guard

  + Create a binding table that is based on NS and NA messages: IPv6 ND Inspection

  + Filter inbound traffic on Layer 2 switch port that are not in the IPv6 binding table: IPv6 Source Guard

  + Block a malicious host and permit the router from a legitimate route: IPv6 RA Guard

  + Create IPv6 neighbors connected to the device from information sources such as NDP snooping: IPv6 Binding Table

• Question 832:

  Refer to the exhibit.

  

  The BGP neighbor is not coming up. Which action resolves the issue?

  A. Configure the ebgp-multihop 2 command on R1 toward the neighbor.
  B. Configure a valid router ID on the neighbor that shows an invalid router ID of 0.0.0.0.
  C. The route map on eBGP sessions must allow the prefixes from the neighbor.
  D. Enable synchronization between the neighbors to bring the neighborship up.
  A. Configure the ebgp-multihop 2 command on R1 toward the neighbor.

• Question 833:

  A network administrator is reloading a router and during the bootup, he is getting the error message "%Error opening tftp://255.255.255.255/network-confg (Socket error)". What command need to be applied on Cisco Router to fix this issue.

  A. No service config
  B. Write erase reload
  C. Reload noconfirm
  D. Copy run start
  A. No service config

• Question 834:

  Which two labet distribution methods are used by routers in MPLS? (Choose two )

  A. targeted hello message
  B. LDP discovery hello message
  C. LDP session protection message
  D. downstream unsolicited
  E. downstream on demand
  D. downstream unsolicited
  E. downstream on demand

• Question 835:

  Which of the following OSPF neighbor adjacency states is applicable only to manually configured OSPF neighbors in a Non Broadcast Multi-Access network?

  A. Attempt
  B. Init
  C. 2-Way
  D. Exstart
  E. Exchange
  A. Attempt

• Question 836:

  You just discovered that a ping packet sent from one of the devices to another took a different path in the return than it did on its way to the destination. What behavior caused this?

  A. Windowing
  B. Global synchronization
  C. MSS
  D. Asymmetric routing
  D. Asymmetric routing

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  This behavior is caused by asymmetric routing. This is quite common in a routed network and usually is not a problem. It can, however, become an issue when firewalls reside in a routed path. Firewalls can cause problems when they maintain state information about connections. State information is used to determine if return connection is allowed. If the return path is routed through a different firewall, it will not have the correct state information for the connection, and the return will be disallowed.

  It is not caused by windowing. This is a technique used to adjust the number of packets that can be acknowledged at once by a receiving computer in a transmission. In times of congestion, the window or number of packets that can be acknowledged at a time will be small. Later, when congestion goes down, the window size can be increased.

  The behavior is not caused by the maximum segment size (MSS). This value specifies the largest amount of data, in octets, that a computer or communications device can receive in a single TCP segment. This will not cause a packet to take a different path in the return than it did on its way to the destination.

  The behavior is not caused by global synchronization. This occurs when congestion on the network causes all devices to reduce their transmission rates at the same time. The result is the network cycling between sharp increases and sharp decreases in traffic.

  Objective:

  Network Principles

  Sub-Objective:

  Explain TCP operations

  References:

  Home > Services > Technical services newsletter > Tech insights > Chalk talk > Asymmetric Routing and Firewalls

• Question 837:

  The network administrator configured CoPP so that all routing protocol traffic toward the router CPU is limited to 1 mbps. All traffic that exceeds this limit must be dropped.

  The router is running BGP and OSPF Management traffic for Telnet and SSH must be limited to 500kbps.

  access-list 100 permit tcp any any eq 179 access-list 100 permit tcp any any range 22 23 access-list 100 permit ospf any any ! class-map CM-ROUTING match access-group 100 class-map CM-MGMT match access-group 100 ! policy-map PM-COPP class CM-ROUTING police 1000000 conform-action transmit class CM-MGMT police 500000 conform-action transmit ! control-plane service-policy output PM-COPP

  No traffic is filtering through CoPP,which is resulting in high CPU utilization, which configuration resolves the issue?

  A. no access-list 100access-list 100 permit tcp any any eq 179 access-list 100 permit ospf any any access-list 101 Permit tcp any any range 22 23 ! class-map CM-MGMT no match access-group 100 match access-group 101
  B. control-plane no service-policy output PM-COPP service-policy input PM-COPP
  C. No access-list 100 access-list 100 permit tcp any any eq 179 access-list 100 permit tcp any any range eq 22 access-list 100 permit tcp any any range eq 23 access-list 100 permit ospf any any
  D. no access-list 100 access-list 100 permit tcp any any eq 179 access-list 100 permit ospf any any access-list 101 Permit tcp any any range 22 23 ! class-map CM-MGMT no match access-group 100 match access-group 101 ! control-plane no service-policy output PM-COPP service-policy input PM-COPP
  D. no access-list 100 access-list 100 permit tcp any any eq 179 access-list 100 permit ospf any any access-list 101 Permit tcp any any range 22 23 ! class-map CM-MGMT no match access-group 100 match access-group 101 ! control-plane no service-policy output PM-COPP service-policy input PM-COPP

• Question 838:

  Refer to the exhibits.

  

  An engineer investigates a routing issue on R1 and finds that traffic destined to 5.5.5.0/24 does not take all of the paths. Which action resolves the issue?

  A. Increase the variance value in EIGRP.
  B. Decrease the variance value in EIGRP.
  C. Remove the adjacency of R3 from EIGRP.
  D. Stop advertising 192.168.13.0/24 in EIGRP.
  A. Increase the variance value in EIGRP.

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  https://community.cisco.com/t5/networking-documents/troubleshooting-eigrp-variance-command/ta-p/3129662#:~:text=EIGRP%20provides%20a%20mechanism%20to,means%20equal%2Dcost%20load%20balancing

• Question 839:

  Refer to the exhibit.

  

  An engineer implemented CoPP to limit Telnet traffic to protect the router CPU. It was noticed that the Telnet traffic did not pass through CoPP Which configuration resolves the issue?

  A. ip access-list extended TELNET permit tcp host 10.2.2.1 host 10.2.2.4 eq telnet permit tcp host 10.1.1.1 host 10.1.1.3 eq telnet
  B. policy-map COPP class TELNET police 8000 conform-action transmit exceed-action transmit
  C. ip access-list extended TELNET permit tcp host 10.2.2.4 host 10.2.2.1 eq telnet permit tcp host 10.1.1.3 host 10.1.1.1 eq telnet
  D. policy-map COPP class TELNET police 8000 conform-action transmit exceed-action transmit violate-action drop
  C. ip access-list extended TELNET permit tcp host 10.2.2.4 host 10.2.2.1 eq telnet permit tcp host 10.1.1.3 host 10.1.1.1 eq telnet

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  police bps [burst-normal] [burst-max] conform-action action exceed-action action [violate-action action]

  Syntax Description

  bps

  Average rate, in bits per second. Valid values are 8000 to 200000000.

  burst-normal

  (Optional) Normal burst size in bytes. Valid values are 1000 to 51200000. Default normal burst size is 1500.

  burst-max

  (Optional) Maximum burst size, in bytes. Valid values are 1000 to 51200000. Default varies by platform.

  conform-action

  Specifies action to take on packets that conform to the rate limit.

  exceed-action

  Specifies action to take on packets that exceed the rate limit.

  violate-action

  (Optional) Specifies action to take on packets that violate the normal and maximum burst sizes.

  action

  Action to take on packets. Specify one of the following keywords:

  drop--Drops the packet.

• Question 840:

  Refer to the exhibit.

  

  Network operations cannot read or write any configuration on the device with this configuration from the operations subnet. Which two configurations fix the issue? (Choose two.)

  A. Configure SNMP rw permission in addition to community ciscotest.
  B. Modify access list 1 and allow operations subnet in the access list.
  C. Modify access list 1 and allow SNMP in the access list.
  D. Configure SNMP rw permission in addition to version 1.
  E. Configure SNMP rw permission in addition to community ciscotest 1.
  B. Modify access list 1 and allow operations subnet in the access list.
  E. Configure SNMP rw permission in addition to community ciscotest 1.

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