Cisco 300-410 Online Practice Questions and Exam Preparation

Cisco 300-410 Online Questions & Answers

• Question 811:

  Refer to the exhibit.

  

  An engineer must configure a per VRF for TACACS+ for company A. Which configuration on RTG-1 accomplishes the task?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  D. Option D

  ---

• Question 812:

  What does IPv6 Source Guard utilize to determine if IPv6 source addresses should be forwarded?

  A. ACE
  B. ACLS
  C. DHCP
  D. Binding Table
  D. Binding Table

  ---

  IPv6 source guard is an interface feature between the populated binding table and data traffic filtering. This feature enables the device to deny traffic when it is originated from an address that is not stored in the binding table. IPv6 source guard does not inspect ND or DHCP packets, rather, it works

• Question 813:

  Examine the following FIB table:

  

  Which of the following statements is NOT true?

  A. These are the default entries in an FIB table
  B. No IP addresses have been configured on this router
  C. Multicast routing is enabled
  D. The gateway of last resort has not been set
  C. Multicast routing is enabled

  ---

  The Forwarding Information Base (FIB) table is created when Cisco Express Forwarding (CEF) is enabled on the router. FIB is a mapping of destination networks and IP addresses to next-hop IP addresses and exit interfaces.

  In the scenario, multicast routing has NOT enabled in the router. If it were enabled, the next hop for the 224.0.0.0/4 network would not be listed as drop. A drop means any packets sent to multicast IP addresses will be dropped. If multicast routing were enabled, the entry for 224.0.0.0 would appear as follows:

  Prefix Next Hop Interface

  224.0.0.0/4 0.0.0.0

  The next hop of 0.0.0.0 means that this traffic will be process switched, and CEF cannot forward the packets.

  The table displayed in the scenario contains the default entries in the FIB. These entries will change based on further configuration of the router interfaces and the addition of routes to the routing table through either static routing or through routing protocols.

  No IP addresses have been configured on the router. Had they been configured, the addresses of the networks to which they were connected would be in the table. For example, if the IP address of the FastEthernet 0/1 interface were set to 192.168.1.1/24, three entries would have been added to the table as follows:

  

  While the first IP address represents the directly attached network of which the interface is a member, the second IP address represents the network ID of the network, the third IP address represents the specific IP address assigned to the interface, and the last IP address represents the broadcast address of the network.

  The gateway of last resort has not been set on the router. If it were set, it would be listed along with an IP address for the next hop and the exit interface. An entry for a gateway of last resort (or default route) would resemble the following:

  Prefix Next Hop Interface

  0.0.0.0/0 192.168.5.5 FastEthernet 0/0

  Objective:

  Network Principles

  Sub-Objective:

  Identify Cisco Express Forwarding concepts

  References:

  Cisco IOS Switching Services Configuration Guide, Release 12.2 > Cisco Express Forwarding Overview Cisco > Home > Support > Product Support > Routers > Cisco 12000 Series Routers > Troubleshoot and Alerts > Troubleshooting Technotes > Understanding Cisco Express Forwarding (CEF) https://www.ccexpert.us/traffic-share/fib-entries.html

• Question 814:

  What are two characteristics of VRF instance? (Choose two.)

  A. All VRFs share customers routing and CEF tables .
  B. An interface must be associated to one VRF.
  C. Each VRF has a different set of routing and CEF tables
  D. It is defined by the VPN membership of a customer site attached to a P device.
  E. A customer site can be associated to different VRFs
  B. An interface must be associated to one VRF.
  C. Each VRF has a different set of routing and CEF tables

  ---

  Two characteristics of a VRF (Virtual Routing and Forwarding) instance are:

  Each VRF has a different set of routing and CEF tables: VRFs maintain separate routing and CEF (Cisco Express Forwarding) tables, allowing different VRFs to have isolated routing information and forwarding decisions.

  An interface must be associated with one VRF: Interfaces on a router or switch are typically associated with a specific VRF. This association ensures that traffic on that interface is segregated and follows the routing information within the designated VRF.

• Question 815:

  Refer to the exhibit.

  

  Which control plane policy limits BGP traffic that is destined to the CPU to 1 Mbps and ignores BGP traffic that is sent at higher rate?

  A. policy-map SHAPE_BGP
  B. policy-map LIMIT_BGP
  C. policy-map POLICE_BGP
  D. policy-map COPP
  D. policy-map COPP

• Question 816:

  Which command enables NAT-PT on an IPv6 interface?

  A. IPv6 nat-pt enable
  B. ipv6 nat
  C. ipv6 nat-pt
  D. ipv6 nat enable
  B. ipv6 nat

• Question 817:

  Refer to the exhibit. An engineer is troubleshooting an issue using the debug ip packet command and notices that no time stamps are shown on R4 to establish the event time. Which configuration resolves this issue by showing time stamps regardless of the time zone in R4 logs?

  

  A. service timestamps log datetime localtime msec
  B. service timestamps debug datetime localtime msec
  C. service timestamps log datetime msec show-timezone
  D. service timestamps debug datetime msec show-timezone
  B. service timestamps debug datetime localtime msec

• Question 818:

  Refer to the exhibit. When monitoring an IPv6 access list, an engineer notices that the ACL does not have any hits and is causing unnecessary traffic to pass through the interface.

  

  Which command must be configured to resolve the issue?

  A. access-class INTERNET in
  B. ipv6 traffic-filter INTERNET in
  C. ipv6 access-class INTERNET in
  D. ip access-group INTERNET in
  B. ipv6 traffic-filter INTERNET in

  ---

  https://www.cisco.com/c/en/us/support/docs/ip/ip-version-6/113126-ipv6-acl-00.html

• Question 819:

  What are the four stages of obtaining an IP address from a DHCP server that corresponds to the acronym DORA?

  A. Discover, Offer, Release, Addressing
  B. Discover, Obtain, Request, Acknowledge
  C. Determine, Offer, Release, Acknowledge
  D. Discover, Offer, Request, Acknowledge
  D. Discover, Offer, Request, Acknowledge

• Question 820:

  You executed the following commands to assign an IPv6 link-local address to the Fa0/0 interface of the R1 router:

  R1(config)# interface Fa0/0 R1(config-if)# ipv6 ospf 1 area 1

  When you executed the show running-config command on the R1 router, you observed that OSPF for IPv6 is not running on the router.

  Which of the following commands should be added to the interface configuration?

  A. ipv6 router ospf
  B. ipv6 enable
  C. ipv6 ospf neighbor
  D. ipv6 ospf cost
  B. ipv6 enable

  ---

  The ipv6 enable command should be used on R1 to enable IPv6. This command automatically provides an IPv6 link-local unicast address for the interface on which IPv6 is being configured. If an explicit IPv6 address were configured on the interface, the command would not be required.

  The ipv6 router ospf command should not be used in the configuration because this command allows you to enter the router configuration mode for OSPF for IPv6.

  The ipv6 ospf neighbor command is used to configure neighboring routers for OSPF. The ipv6 ospf cost command should not be added to the configuration because this command allows you to specify the OSPF cost to send packets from a given interface.

  Objective:

  Layer 3 Technologies

  Sub-Objective:

  Configure and verify OSPF for IPv6

  References:

  Cisco > Cisco IOS IPv6 Command Reference > ipv6 enable