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Implementing Cisco Service Provider Next-Generation Core Network Services

Question No: 31 DRAG DROP

Answer:

Question No: 32

Which QoS technique can be used to protect customer traffic from being dropped by traffic rate limiting performed by the service provider?

1. LLQ

2. policing

3. fair-queue

4. shaping

Answer: D

Question No: 33

On the Cisco IOS XR, when using the match protocol command within a class-map to classify traffic, you noticed that the match protocol option on the Cisco IOS XR shows much fewer protocol options than on the Cisco IOS or IOS XE, like there is no option such as the match protocol yahoo-messenger command on the Cisco IOS XR. Why is this?

1. because the Cisco IOS XR router does not have the correct software packages installed

2. because when defining the class-map, the class-map type should be set to type inspect: class-map type inspect class-map-name command

3. because NBAR is not supported on the Cisco IOS XR

4. because flexible packet matching has not been enabled on the Cisco IOS XR router

Answer: C

Question No: 34

Cisco MPLS TE resource attributes that are configured locally for each link are distributed to the headend router of the traffic engineering tunnel using which protocol?

1. BGP

2. MP-BGP

3. LDP

4. RSVP

5. OSPF or IS-IS with TE extension

Answer: E

Question No: 35

An engineer has been tasked to configure a guaranteed 2 Mbps of bandwidth for outgoing

FTP traffic on interface FastEthernet 1/1/1 on Cisco IOS XR. Which method accomplishes this configuration?

1. configure terminal class-map FTP_CLASS match protocol ftp

   exit

   policy-map POLICY_1 class FTP_CLASS bandwidth 2000

   exit exit

   interface FastEthernet 1/1/1 service-policy output POLICY_1 end

   commit

2. configure terminal class-map FTP_CLASS match protocol ftp

   exit

   policy-map POLICY_1 class FTP_CLASS bandwidth 2000000 exit

   exit

   interface FastEthernet 1/1/1 service-policy input POLICY_1 end

   commit

3. configure terminal

   access-list 100 permit ip any any eq 21 policy-map POLICY_1

   match ip access-list 100 bandwidth 2000

   exit exit

   interface FastEthernet 1/1/1 service-policy output POLICY_1 end

   commit

4. configure terminal policy-map POLICY_1 class FTP_CLASS match protocol ftp bandwidth 2000000

exit exit

interface FastEthernet 1/1/1 service-policy input POLICY_1 end

commit

Answer: A

Question No: 36

Which Cisco IOS XR high-availability feature is used to prevent routes from being used before LDP converges?

1. LDP session protection

2. LDP-IGP synchronization

3. BFD

4. IGP session protection

Answer: B

Question No: 37

A network engineer must analyze RSVP-TE signaling on a syslog server. Which three RSVP messages are valid? (Choose three.)

1. RSVP PATH

2. RSVP RESERVATION

3. RSVP ESTABLISHED

4. RSVP PATH TEAR

5. RSVP KILL

6. RSVP INIT

Answer: A,B,D

Question No: 38

In Cisco MPLS TE implementations, what can cause the tunnel bandwidth to adjust

automatically based on the traffic load in the tunnel?

1. fast reroute

2. admin weight

3. autobandwidth

4. bandwidth subpool

Answer: C

Question No: 39

Within the service provider core network, which two QoS mechanisms are typically deployed on the P routers? (Choose two.)

1. LLQ

2. traffic policing and remarking

3. WRED

4. traffic shaping

5. traffic classification and markings

6. link fragmentation and interleaving

Answer: A,C

Question No: 40

Which three options are class maps able to match? (Choose three.)

1. match access-group

2. match protocol http url quot;*ciscoquot;

3. match destination-port

4. match DSCP

5. match all

6. match mac-address

Answer: A,B,D

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