Introducing The New!
Surepassexam Collection
Get Unlimited Access to all
Surepassexam's PREMIUM files
Q1. Refer to the exhibit.
How many EIGRP routes will appear in the routing table of R2?
A. 0
B. 1
C. 2
D. 3
Answer: A
Explanation:
EIGRPv6 on R2 was shut down so there is no EIGRP routes on the routing table of R2. If we turn on EIGRPv6 on R2 (with “no shutdown” command) then we would see the prefix of the loopback interface of R1 in the routing table of R2.
Note. EIGRPv6 requires the “ipv6 unicast-routing” global command to be turned on first or it will not work.
Q2. Which topology allows the split-horizon rule to be safely disabled when using EIGRP?
A. full mesh
B. partial mesh
C. hub and spoke
D. ring
Answer: C
Q3. Which mechanism does Cisco recommend for CE router interfaces that face the service provider for an EVPL circuit with multiple EVCs and multiple traffic classes?
A. HCBWFQ
B. LLQ
C. tail drop
D. WRED
Answer: A
Explanation:
In a simple handoff, packets may be discarded in the service provider network, either because of congestion on a link without an appropriate QoS policy or because of a policer QoS configuration on the service provider network that serves to rate limit traffic accessing the WAN core. To address these issues, QoS on the CE device is applied at a per-port level. A QoS service policy is configured on the outside Ethernet interface, and this parent policy includes a shaper that then references a second or subordinate (child) policy that enables queueing within the shaped rate. This is called a hierarchical CBWFQ (HCBWFQ) configuration.
Reference: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/Ethernet_Acces s_for_NG_MAN_WAN_V3-1_external.html
Q4. Refer to the exhibit.
Which two are causes of output queue drops on FastEthernet0/0? (Choose two.)
A. an oversubscribed input service policy on FastEthernet0/0
B. a duplex mismatch on FastEthernet0/0
C. a bad cable connected to FastEthernet0/0
D. an oversubscribed output service policy on FastEthernet0/0
E. The router trying to send more than 100 Mb/s out of FastEthernet0/0
Answer: D,E
Explanation:
Output drops are caused by a congested interface. For example, the traffic rate on the outgoing interface cannot accept all packets that should be sent out, or a service policy is applied that is oversubscribed. The ultimate solution to resolve the problem is to increase the line speed. However, there are ways to prevent, decrease, or control output drops when you do not want to increase the line speed. You can prevent output drops only if output drops are a consequence of short bursts of data. If output drops are caused by a constant high-rate flow, you cannot prevent the drops. However, you can control them.
Reference: http://www.cisco.com/c/en/us/support/docs/routers/10000-series-routers/6343-queue-drops.html
Q5. Refer to the exhibit.
What will be the extended community value of this route?
A. RT:200:3000 RT:200:9999
B. RT:200:9999 RT:200:3000
C. RT:200:3000
D. RT:200:9999
Answer: D
Explanation:
Here the route map is being used to manually set the extended community RT to 200:9999
Q6. 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.
Q7. Which type of OSPF packet is an OSPF link state update packet?
A. type 1
B. type 2
C. type 3
D. type 4
E. type 5
Answer: D
Explanation:
Link State Update packets are OSPF packet type 4. These packets implement the flooding of link state advertisements. Each Link State Update packet carries a collection of link state advertisements one hop further from its origin. Several link state advertisements may be included in a single packet.
Reference: http://www.freesoft.org/CIE/RFC/1583/107.htm
Q8. Refer to the exhibit.
Which two statements about this configuration are true? (Choose two.)
A. Spoke devices will be dynamically added to the NHRP mappings.
B. The next-hop server address must be configured to 172.168.1.1 on all spokes.
C. The next-hop server address must be configured to 192.168.1.1 on all spokes.
D. R1 will create a static mapping for each spoke.
Answer: A,C
Explanation:
NHRP is a client/server model protocol which is defined by RFC2332. The hub is considered to be the Next Hop Server (NHS) and the spokes are considered to be the Next Hop Client (NHC). The hub must be configured as the next-hop server. NHRP provides a mapping between the inside and outside address of a tunnel endpoint. These mappings can be static or dynamic. In a dynamic scenario, a next-hop server (NHS) is used to maintain a list of possible tunnel endpoints. Each endpoint using the NHS registers its own public and private mapping with the NHS. The local mapping of the NHS must always be static. It is important to note that the branch points to the inside or protected address of the NHS server. This scenario is an example of dynamic mappings.
Reference: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/DMVPDG/DMV PN_2_Phase2.html
Q9. In IPv6 Path MTU Discovery, which ICMP message is sent by an intermediary router that requires a smaller MTU?
A. Time Exceeded, with code 1 (fragment reassembly time exceeded)
B. Packet Too Big
C. Destination Unreachable, with code 4 (the datagram is too big)
D. Multicast Termination Router
Answer: B
Q10. DRAG DROP
Drag and drop the IGMPv2 timer on the left to its default value on the right.
Answer:
Q11. Which two features are used for inspection when IPv6 address glean is enabled? (Choose two.)
A. DHCP messages
B. ND messages
C. ICMPv6 messages
D. UDP messages
E. TCP messages
Answer: A,B
Explanation:
IPv6 address glean is the foundation for many other IPv6 features that depend on an accurate binding table. It inspects ND and DHCP messages on a link to glean addresses, and then populates the binding table with these addresses. This feature also enforces address ownership and limits the number of addresses any given node is allowed to claim.
Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6_fhsec/configuration/15-s/ip6f-15-s-book/ip6-snooping.html
Q12. Refer to the exhibit.
R1 is performing mutual redistribution, but OSPF routes from R3 are unable to reach R2. Which three options are possible reasons for this behavior? (Choose three.)
A. R1 requires a seed metric to redistribute RIP.
B. The RIP version supports only classful subnet masks.
C. R1 is filtering OSPF routes when redistributing into RIP.
D. R3 and R1 have the same router ID.
E. R1 and R3 have an MTU mismatch.
F. R2 is configured to offset OSPF routes with a metric of 16.
Answer: A,C,F
Explanation:
A. RIP requires a seed metric to be specified when redistributing routes into that protocol. A seed metric is a "starter metric" that gives the RIP process a metric it can work with. The OSPF metric of cost is incomprehensible to RIP, since RIP's sole metric is hop count. We've got to give RIP a metric it understands when redistributing routes into that protocol, so let's go back to R1 and do so.
C. Filtering routes is another explanation, if the routes to R2 are boing filtered from being advertised to R1.
F. If the metric is offset to 16, then the routes will have reached the maximum hop count when redistributed to RIP. The max hop count for RIP is 16.
Q13. DRAG DROP
Drag and drop each policy command on the left to the function it performs on the right.
Answer:
Q14. Which two statements about PIM-DM are true? (Choose two.)
A. It forwards multicast packets on a source tree.
B. It requires an RP.
C. It forwards multicast packets on a shared distribution tree.
D. It floods multicast packets to neighbors that have requested the data.
E. It floods multicast packets throughout the network.
F. It forwards multicast packets to neighbors that have requested the data.
Answer: A,E
Q15. Which two metrics are measured with active probes when PfR voice traffic optimization is in use? (Choose two.)
A. MOS
B. cost
C. jitter
D. bandwidth
Answer: A,C