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Q181. Which is the way to enable the control word in an L2 VPN dynamic pseudowire connection on router R1?
A. R1(config)# pseudowire-class cw-enable
R1(config-pw-class)# encapsulation mpls
R1(config-pw-class)# set control-word
B. R1(config)# pseudowire-class cw-enable
R1(config-pw-class)# encapsulation mpls
R1(config-pw-class)# enable control-word
C. R1(config)# pseudowire-class cw-enable
R1(config-pw-class)# encapsulation mpls
R1(config-pw-class)# default control-word
D. R1(config)# pseudowire-class cw-enable
R1(config-pw-class)# encapsulation mpls
R1(config-pw-class)# control-word
Answer: D
Explanation:
The following example shows how to enable the control word in an AToM dynamic pseudowire connection:
Device(config)# pseudowire-class cw-enable
Device(config-pw-class)# encapsulation mpls
Device(config-pw-class)# control-word
Device(config-pw-class)# exit
Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mpls/command/mp-cr-book/mp-a1.html
Q182. Refer to the exhibit.
Which statement about configuring the switch to manage traffic is true?
A. The switchport priority extend cos command on interface FastEthernet0/0 prevents traffic to and from the PC from taking advantage of the high-priority data queue that is assigned to the IP phone.
B. The switchport priority extend cos command on interface FastEthernet0/0 enables traffic to and from the PC to use the high priority data queue that is assigned to the IP phone.
C. When the switch is configured to trust the CoS label of incoming traffic, the trusted boundary feature is disabled automatically.
D. The mls qos cos override command on interface FastEthernet0/0 configures the port to trust the CoS label of traffic to and from the PC.
Answer: A
Explanation:
In some situations, you can prevent a PC connected to the Cisco IP Phone from taking advantage of a high-priority data queue. You can use the switchport priority extend cos interface configuration command to configure the telephone through the switch CLI to override the priority of the traffic received from the PC.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-1_22_ea2/configuration/guide/2950scg/swqos.html
Q183. With AutoInstall, which mechanism allows for automatic addressing of the serial interface using HDLC?
A. ARP
B. BOOTP
C. DHCP
D. SLARP
Answer: D
Q184. Which two options are benefits of EIGRP OTP? (Choose two.)
A. It allows EIGRP routers to peer across a service provider without the service provider involvement.
B. It allows the customer EIGRP domain to remain contiguous.
C. It requires only minimal support from the service provider.
D. It allows EIGRP neighbors to be discovered dynamically.
E. It fully supports multicast traffic.
F. It allows the administrator to use different autonomous system numbers per EIGRP domain.
Answer: A,B
Explanation:
EIGRP Over the Top (OTP) allows EIGRP routers to peer across a service provider infrastructure without the SP’s involvement. In fact with OTP, the provider won’t see customer routes at all. EIGRP OTP acts as a provider-independent overlay that transports customer data between the customer’s routers. To the customer, the EIGRP domain is contiguous. A customer’s EIGRP router sits at the edge of the provider cloud, and peers with another EIGRP router a different location across the cloud. Learned routes feature a next hop of the customer router — not the provider. Good news for service providers is that customers can deploy EIGRP OTP with their involvement
Reference: http://ethancbanks.com/2013/08/01/an-overview-of-eigrp-over-the-top-otp/
Q185. Which three statements about EIGRP wide metrics are true? (Choose three.)
A. The maximum metric is 65536.
B. The default delay is 1,000,000 picoseconds.
C. They allow up to 100 hops.
D. They allow up to 256 hops.
E. The default delay is 1,000,000 milliseconds.
F. The maximum metric is 51200.
Answer: A,B,C
Q186. 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.
Q187. You are tasked with configuring a router on an OSPF domain to import routes from an EIGRP domain and summarize the routes to 192.168.64.0.
Which statement configures the summarized route and provides equal-path route redundancy?
A. area 32 range 192.168.64.0 255.255.192.0 cost 100
B. area 32 range 192.168.64.0 255.255.63.0 cost 100
C. area 32 range 192.168.64.0 255.255.64.0 cost 100
D. area 32 range 192.168.64.0 255.255.192.0 multi-path
Answer: A
Explanation:
area range
To consolidate and summarize routes at an area boundary, use the area range command in router configuration mode. To disable this function, use the no form of this command.
Syntax Description
area-id
Identifier of the area about which routes are to be summarized. It can be specified as either a decimal value or as an IP address.
ip-address
IP address.
mask
IP address mask.
advertise
(Optional) Sets the address range status to advertise and generates a Type 3 summary link-state advertisement (LSA).
not-advertise
(Optional) Sets the address range status to DoNotAdvertise. The Type 3 summary LSA is suppressed, and the component networks remain hidden from other networks.
cost cost
(Optional) Metric or cost for this summary route, which is used during OSPF SPF calculation to determine the shortest paths to the destination. The value can be 0 to 16777215.
Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_2/iproute/command/reference/fiprrp_r/1rfospf. html#wp1017596
Q188. Which two statements about Cisco Performance Routing are true? (Choose two.)
A. It analyzes application performance to make routing decisions.
B. When determining the best path, it prefers the shortest path.
C. It can help the administrator determine the need for bandwidth upgrades.
D. It operates entirely in the data plane.
E. It can use EIGRP feasible successors to determine an alternate path.
F. It analyzes system hardware performance to make routing decisions.
Answer: A,E
Q189. 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.
Q190. Which three options are characteristics of a Type 10 LSA? (Choose three.)
A. It is an area-local, opaque LSA.
B. Data is flooded to all routers in the LSA scope.
C. It is used for traffic-engineering extensions to OSPF.
D. It is a link-local, opaque LSA.
E. Data is flooded only to the routers in the LSA scope that understand the data.
F. It is used for traffic-engineering extensions to LDP.
Answer: A,B,C