Practice Free 300-410 Exam Online Questions
Refer to the exhibit.
R1 has a route map configured, which results in a loss of partial IPv6 prefixes for the BGP neighbor, resulting in service degradation.
How can the full service be restored?
- A . The neighbor requires a soft reconfiguration, and this will clear the policy without resetting the BGP TCP connection.
- B . The prefix lit requires all prefixes that R1 is advertising to be added to it, and this will allow additional prefixes to be advertised.
- C . The route map requires a deny 20 statement without set conditions, and this will allow additional prefixes to be advertised.
- D . The route map requires a permit 20 statement without set conditions, and this will allow additional prefixes to be advertised.
Refer to the exhibit.
R5 should not receive any routes originated in the EIGRP domain.
Which set of configuration changes removes the EIGRP routes from the R5 routing table to fix the issue?
- A . R4
route-map O2R deny 10
match tag 111
route-map O2R permit 20
!
router rip
redistribute ospf 1 route-map O2R metric 1 - B . R2
route-map E20 deny 20
R4
route-map O2R deny 10
match tag 111
!
router rip
redistribute ospf 1 route-map O2R metric 1 - C . R4
route-map O2R permit 10
match tag 111
route-map O2R deny 20
!
router rip
redistribute ospf 1 route-map O2R metric 1 - D . R4
route-map O2R deny 10
match tag 111
!
router rip
redistribute ospf 1 route-map O2R metric 1
A
Explanation:
In this question, routes from EIGRP domain are redistributed into OSPF (with tag 111) then RIPv2 but without any filtering so R5 learns all routes from both EIGRP and OSPF domain. If we only want R5 to learn routes from OSPF domain then we must filter out routes with tag 111 and permit other routes.
The line “route-map O2R permit 20” is important to allow other routes because of the implicit deny all at the end of each route-map.
Which two components are needed for a service provider to utilize the LVPN MPLS application? (Choose two.)
- A . The P routers must be configured for MP-iBGP toward the PE routers
- B . The P routers must be configured with RSVP.
- C . The PE routers must be configured for MP-iBGP with other PE routers
- D . The PE routers must be configured for MP-eBGP to connect to CEs
- E . The P and PE routers must be configured with LDP or RSVP
C,E
Explanation:
MPLS Network Protocols
+ IGP: OSPF, EIGRP, IS-IS on core facing and core links+ RSVP and/or LDP on core and/or core facing links ->
+ MP-iBGP on PE devices (for MPLS services), MP-BGP: Multiprotocol Border Gateway Protocol, used for MPLS L3 VPN -> .
Reference: https://www.uio.no/studier/emner/matnat/ifi/IN3230/h19/kursmateriell/mpls-lecture.pdf
Which statement about route distinguishers in an MPLS network is true?
- A . Route distinguishers allow multiple instances of a routing table to coexist within the edge router.
- B . Route distinguishers are used for label bindings.
- C . Route distinguishers make a unique VPNv4 address across the MPLS network.
- D . Route distinguishers define which prefixes are imported and exported on the edge router.
DRAG DROP
Drag and drop the packet types from the left onto the correct descriptions on the right.
Explanation:
Unlike legacy network technologies such as ISDN, Frame Relay, and ATM that defined separate data and control channels, IP carries all packets within a single pipe. Thus, IP network devices such as routers and switches must be able to distinguish between data plane, control plane, and management plane packets to treat each packet appropriately. From an IP traffic plane perspective, packets may be divided into four distinct, logical groups:1. Data plane packets C End-station, user-generated packets that are always forwarded by network devices to other end-station devices. From the perspective of the network device, data plane packets always have a transit destination IP address and can be handled by normal, destination IP address-based forwarding processes.2. Control plane packets C Network device generated or received packets that are used for the creation and operation of the network itself. From the perspective of the network device, control plane packets
always have a receive destination IP address and are handled by the CPU in the network device route processor. Examples include protocols such as ARP, BGP, OSPF, and other protocols that glue the network together.3. Management plane packets C Network device generated or received packets, or management station generated or received packets that are used to manage the network. From the perspective of the network device, management plane packets always have a receive destination IP address and are handled by the CPU in the network device route processor. Examples include protocols such as Telnet, Secure Shell (SSH), TFTP, SNMP, FTP, NTP, and other protocols used to manage the device and/or network.4. Services plane packets C A special case of data plane packets, services plane packets are also user-generated packets that are also forwarded by network devices to other end-station devices, but that require high-touch handling by the network device (above and beyond normal, destination IP address-based forwarding) to forward the packet. Examples of high-touch handling include such functions as GRE encapsulation, QoS, MPLS VPNs, and SSL/IPsec encryption/decryption, etc. From the perspective of the network device, services plane packets may have a transit destination IP address, or may have a receive destination IP address (for example, in the case of a VPN tunnel endpoint).
Reference: https://tools.cisco.com/security/center/resources/copp_best_practices
Refer to the exhibit.
A prefix list is created to filter routes inbound to an EIGRP process except for network 10 prefixes After the prefix list is applied no network 10 prefixes are visible in the routing table from EIGRP.
Which configuration resolves the issue?
- A . ip prefix-list EIGRP seq 20 permit 10.0.0.0/8 ge 9.
- B . ip prefix-list EIGRP seq 10 permit 0.0.0.0/0 le 32
- C . ip prefix-list EIGRP seq 5 permit 10.0.0.0/8 ge 9 no
ip prefix-list EIGRP seq 20 permit 10.0.0.0/8 - D . ip prefix-list EIGRP seq 20 permit 10.0.0.0/8 ge 9
ip prefix-list EIGRP seq 10 permit 0.0.0.0/0 le 32
Refer to the exhibit.
A network engineer is adding a new spoke router into an existing DMVPN Phase 3 tunnel with a hub router to provide secure communication between sites.
Which additional configuration must the engineer apply to enable the tunnel to come up?
- A . ip nhrp registration no-unique
- B . ip nhrp server-only non-caching
- C . ip nhrp responder tunnel
- D . ip nhrpnhs 172.23.5.1
Which protocol is used in a DMVPN network to map physical IP addresses to logical IP addresses?
- A . BGP
- B . LLDP
- C . EIGRP
- D . NHRP
Which protocol is used in a DMVPN network to map physical IP addresses to logical IP addresses?
- A . BGP
- B . LLDP
- C . EIGRP
- D . NHRP
Which router translates the customer routing information into VPNv4 routes to exchange VPNv4 routes with other devices through MP-BGP?
- A . PE
- B . CE
- C . P
- D . VPNv4 RR