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Q441. Refer to the exhibit.
Which prefixes will appear in the EIGRP topology table?
A. 10.0.0.0/8, 172.16.1.0/24, 192.168.0.0/16
B. 10.1.1.0/24, 10.1.2.0/24, 172.16.1.0/26, 192.168.1.0/26, 192.168.2.0/26
C. 10.1.1.0/24, 10.1.2.0/24, 172.16.1.0/26, 172.16.2.0/26, 192.168.1.0/26, 192.168.2.0/26
D. 10.1.1.1/24, 10.1.2.1/24, 172.16.1.1/26, 172, 192.168.1.1/26, 192.168.2.1/26
Answer: B
Q442. DRAG DROP
Drag and drop Layer 2 QoS Commands on the left to the corresponding functions on the right.
Answer:
Q443. Which three values can be used to tag external EIGRP routes? (Choose three.)
A. The router ID of the router that redistributed the route
B. The administrative distance of the external protocol
C. The protocol ID of the external protocol
D. The cost to reach the router that redistributed the route
E. The metric from the external protocol F. The router ID of the router from which the external protocol route was learned
Answer: A,C,E
Explanation:
EIGRP has the notion of internal and external routes. Internal routes are ones that have been originated within an EIGRP autonomous system (AS). Therefore, a directly attached network that is configured to run EIGRP is considered an internal route and is propagated with this information throughout the EIGRP AS. External routes are ones that have been learned by another routing protocol or reside in the routing table as static routes. These routes are tagged individually with the identity of their origination. External routes are tagged with the following information:
The router ID of the EIGRP router that redistributed the route.
The AS number where the destination resides.
A configurable administrator tag.
Protocol ID of the external protocol.
The metric from the external protocol.
Bit flags for default routing.
Reference: http://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/13669-1.html#route_tagging
Q444. Which two technologies are supported by EIGRP? (Choose two.)
A. clear-text authentication
B. MD5 authentication
C. stub routing
D. multiple areas
Answer: B,C
Explanation:
The IP Enhanced IGRP Route Authentication feature provides MD5 authentication of routing updates from the EIGRP routing protocol. The MD5 keyed digest in each EIGRP packet prevents the introduction of unauthorized or false routing messages from unapproved sources. The EIGRP stub routing feature improves network stability, reduces resource utilization, and simplifies the stub device configuration. Stub routing is commonly used in hub-and-spoke network topologies. In a hub-and-spoke network, one or more end (stub) networks are connected to a remote device (the spoke) that is connected to one or more distribution devices (the hub). The remote device is adjacent to one or more distribution devices. The only route for IP traffic to reach the remote device is through a distribution device.
References: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-s/ire-15-s-book/ire-rte-auth.html http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-s/ire-15-s-book/ire-eigrp-stub-rtg.html
Q445. Refer to the exhibit.
Which two statements about the output are true? (Choose two.)
A. It indicates that prefix aggregation cache export is enabled on the device.
B. It was obtained with the show ip cache flow command.
C. It indicates that the device is using NetFlow version 5.
D. It indicates that the flows are being sent to a destination using an RFC1918 address.
Answer: C,D
Explanation:
C. The fourth line shows that Version 5 is being used.
D. The third line shows that the destination server is 10.5.206.250, which of course is a private, RFC 1918 address.
Q446. Which two options are requirements to implement 6VPE? (Choose two.)
A. MPLS between PEs
B. 6-in-4 tunnels between PEs
C. MP-BGP VPNv6 exchange
D. MP-BGP IPv6+label exchange
E. Any Transport over MPLS
F. IPv4/IPv6 dual-stack in core
Answer: A,C
Q447. Which three statements about the route preference of IS-IS are true? (Choose three.)
A. An L1 path is preferred over an L2 path.
B. An L2 path is preferred over an L1 path.
C. Within each level, a path that supports optional metrics is preferred over a path that supports only the default metric.
D. Within each level of metric support, the path with the lowest metric is preferred.
E. The Cisco IS-IS implementation usually performs equal cost path load balancing on up to eight paths.
F. Both L1 and L2 routes will be installed in the routing table at the same time.
Answer: A,C,D
Explanation:
Given multiple possible routes to a particular destination, an L1 path is preferred over an L2 path. Within each level, a path that supports the optional metrics is preferred over a path that supports only the default metric. (Again, Cisco supports only the default metric, so the second order of preference is not relevant to Cisco routers.) Within each level of metric support, the path with the lowest metric is preferred. If multiple equal-cost, equal-level paths are found by the Decision process, they are all entered into the route table. The Cisco IS-IS implementation usually performs equal-cost load balancing on up to six paths.
Reference: http://www.realccielab.org/operation-of-integrated-is-is.html
Q448. Refer to the exhibit.
Which IP packets will be accepted from EBGP neighbor 10.1.1.1?
A. IP packets with a TTL count in the header that is equal to or greater than 253
B. IP packets with a TTL count in the header that is equal to 253
C. IP packets with a TTL count in the header that is equal to or greater than 2
D. IP packets with a TTL count in the header that is equal to 2
Answer: A
Explanation:
neighbor ip-address ttl-security hops hop-count
ExamplE.
Router(config-router)# neighbor 10.1.1.1 ttl-security hops 2
Configures the maximum number of hops that separate two peers.
. The hop-count argument is set to number of hops that separate the local and remote peer.
If the expected TTL value in the IP packet header is 254, then the number 1 should be configured for the hop-count argument. The range of values is a number from 1 to 254.
. When this feature is enabled, BGP will accept incoming IP packets with a TTL value that is
equal to or greater than the expected TTL value. Packets that are not accepted are silently discarded.
. The example configuration sets the expected incoming TTL value to at least 253, which is 255 minus the TTL value of 2, and this is the minimum TTL value expected from the BGP peer. The local router will accept the peering session from the 10.1.1.1 neighbor only if it is 1 or 2 hops away.
Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_2s/feature/guide/fs_btsh.html
Q449. What are the three variants of NTPv4? (Choose three.)
A. client/server
B. broadcast
C. symmetric
D. multicast
E. asymmetric
F. unicast
Answer: A,B,C
Q450. Which three features does GETVPN support to improve deployment and scalability? (Choose three.)
A. configuration of multiple key servers to work cooperatively
B. allowing traffic to be discarded until a group member registers successfully
C. local exceptions in the traffic classification ACL
D. GDOI protocol configuration between group members and the key server
E. redundant IPsec tunnels between group members and the key server
F. redundant multicast replication streaming through the use of a bypass tunnel
Answer: A,B,C
