NEW QUESTION 1
Which three statements are correct regarding a Cisco MPLS TE? (Choose three.)

• A. A Cisco MPLS TE tunnel maps onto an LSP path.
• B. Tunnels are bidrectional by default.
• C. Packets that are mapped into a Cisco MPLS TE tunnel will have two labels, with the top label indicating what the tail-end router should do with the packet.
• D. A tunnel that is created with a priority of 0 can pre-empt an existing tunnel with a priority of 7.
• E. CBR takes into account link resource and traffic tunnel attributes.
• F. RSVP is used between customer routers.

Answer: ADE

NEW QUESTION 2
Scenario:




After reviewing present router configuration CE7 .which two statements are correct regarding behavior of the "IIq" policy-map? (Choose 2)

• A. Traffic matched by the "cisco1" class-map will be assigned to the priority queue.
• B. The "IIq" QoS policy is applied to the gi0/0 interface in the output direction
• C. Traffic matched bythe"cisco2" class-map has a maximum bandwidth of 30%
• D. Traffic matched bythe"cisco3" class-map has no priority and has a minimum bandwidth guarantee of 20%
• E. There are no packets being matched by the "class-default" traffic class in the "IIq" policy

Answer: AD

Explanation: You will notice that "cisco1" class map is assigned to the priority queue (the command is configured under policy-map IIq class cisco1 priority xxx)
"cisco2" class map: is indeed configured using bandwidth 30%, however that defines the minimum bandwidth but not the maximum.
"cisco3" class map: is indeed configured using "bandwidth 20%", No priority configured and that will define the minimum guaranteed bandwidth.
The last choice is wrong! check under "show policy-map interface" There are 4 or more packets being matched by the "class-default" traffic class in the "IIq" policy.
Class-map: class-default (match-any) 4 packets, 968 bytes

NEW QUESTION 3
What is the function of MPLS FRR?

• A. automatically repairs LDP adjacency issues for MPLS TE tunnel endpoints
• B. automatically updates BGP prefixes during link failures
• C. automatically redirects MPLS TE traffic away from degraded links
• D. routes traffic onto a backup MPLS TE tunnel during link failures

Answer: D

NEW QUESTION 4
Which statement is correct regarding the default MPLS TTL behavior?

• A. When an ingress edge LSR receives an IP packet, it will decrement the IP TTL field by 1; then it will set the MPLS Label TTL field to 255.
• B. When an ingress edge LSR receives an IP packet, it will decrement the IP TTL field by 1; then it will copy the decremented IP TTL field into the MPLS Label TTL field.
• C. When an ingress edge LSR receives an IP packet, it will just copy the IP TTL field into the MPLS Label TTL field.
• D. When an ingress edge LSR receives an IP packet, it will copy the IP TTL field into the MPLS Label TTL field first; then it will only decrement the MPLS Label TTL field by 1.
• E. When an ingress edge LSR receives an IP packet, it will copy the IP TTL field into the MPLS Label TTL field first; then it will only decrement the IP TTL field by 1.

Answer: B

NEW QUESTION 5
Which IOS XR Software feature supports establishing point-to-point and point-to-multipoint TE tunnels
traversing multiple IGP areas and levels allowing headend and tailend routers to reside in different areas?

• A. loose hop reoptimization
• B. FRR mode protection
• C. interarea support
• D. loose hop expansion

Answer: B

NEW QUESTION 6
Which Cisco IOS XR command should be used to identify if MPLS TE FRR is enabled?

• A. show mpls traffic-eng tunnel <tunnel#>
• B. show mpls frr
• C. show mpls traffic-eng protection
• D. show mpls protection
• E. show mpls fast-reroute

Answer: A

Explanation: The MPLS Traffic Engineering (TE)—Fast Reroute (FRR) Link and Node Protection feature provides link protection (backup tunnels that bypass only a single link of the label-switched path (LSP)), node protection (backup tunnels that bypass next-hop nodes along LSPs), and the following FRR features:
•Backup tunnel support
•Backup bandwidth protection
•Resource Reservation Protocol (RSVP) Hellos
Prerequisites for MPLS Traffic Engineering (TE)—Fast Reroute (FRR) Link and Node Protection
Your network must support the following Cisco IOS features:
•IP Cisco Express Forwarding
•Multiprotocol Label Switching (MPLS)
Your network must support at least one of the following protocols:
•Intermediate System-to-Intermediate System (IS-IS)
•Open Shortest Path First (OSPF)
Before configuring FRR link and node protection, it is assumed that you have done the following tasks but you do not have to already have configured MPLS TE tunnels:
•Enabled MPLS TE on all relevant routers and interfaces
•Configured MPLS TE tunnels

NEW QUESTION 7
Which two traffic types are recognized by NBAR default configuration settings? (Choose two.)

• A. HTTP URL
• B. Sun RPC
• C. TCP
• D. UDP
• E. HTTPS URL

Answer: AB

NEW QUESTION 8
A network engineer must design a core network routing domain that supports Cisco MPLS TE. Which two interior gateway protocols represent viable solutions? (Choose two.)

• A. Routing Information Protocol version 2
• B. Open Shortest Path First
• C. Enhanced Interior Gateway Routing Protocol
• D. Intermediate-System to Intermediate-System
• E. Border Gateway Protocol

Answer: BD

NEW QUESTION 9
When configuring LLQ (strict priority queue) on a traffic class using the Cisco IOS XR priority command on a Cisco ASR9K router, which additional QoS command is required for this traffic class?

• A. shape
• B. police
• C. random-detect
• D. bandwidth

Answer: B

Explanation: The Low Latency Queueing feature brings strict priority queueing to Class-Based Weighted Fair Queueing (CBWFQ).

NEW QUESTION 10
The Cisco IOS and IOS XE qos pre-classify command allows which kind of packet classification on IP packets that are encapsulated with GRE and IPsec?

• A. allows for packets to be classified based on the ToS byte values before packet encryption
• B. allows for packets to be classified based on the ToS byte values after packet encryption
• C. allows for packets to be classified based on the packet payload before packet encryption
• D. allows for packets to be classified based on the packet payload after packet encryption
• E. allows for packets to be classified based on the packet header parameters other than the ToS byte values after packet encryption

Answer: A

Explanation: http://www.cisco.com/en/US/tech/tk543/tk545/technologies_tech_note09186a008017405e. shtml
The qos pre-classify command
When packets are encapsulated by tunnel or encryption headers, QoS features are unable to examine the original packet headers and correctly classify the packets. Packets traveling across the same tunnel have the same tunnel headers, so the packets are treated identically if the physical interface is congested. With the introduction of the Quality of Service for Virtual Private Networks (VPNs) feature, packets can now be classified before tunneling and encryption occur.
In this example, tunnel0 is the tunnel name. The qos pre-classify command enables the QoS for VPNs feature on tunnel0:
Router(config)# interface tunnel0
Router(config-if)# qos pre-classify

NEW QUESTION 11
A network operations center requests support to configure a Cisco MPLS TE tunnel on a Cisco IOS XR router. Which command sets a specific bandwidth required to the corresponding Cisco MPLS TE tunnel?

• A. rsvpinterface interface-path-id bandwidth bandwidth
• B. interface tunnel-te tunnel_id!bandwidth bandwidth
• C. interface tunnel-te tunnel_id!signaled-bandwidth bandwidth
• D. mpls traffic-engauto-bw collect frequency value!

Answer: C

NEW QUESTION 12
Which feature should you configure to enable routers to maintain MPLS label information despite link flaps on an interface?

• A. Targeted Adjacency
• B. IGP Synchronization
• C. MPLS LDP Session Protection
• D. NSR

Answer: C

NEW QUESTION 13
A network engineer must make a reservable maximum bandwidth of 75 Mbps on a Cisco ASR 9000 series router. Which configuration satisfies this requirement in Cisco IOS XR?

• A. 2802_FY14Q4_CORE_Q33_o1
• B. 2813_FY14Q4_CORE_Q33_o2
• C. 2824_FY14Q4_CORE_Q33_o3
• D. 2835_FY14Q4_CORE_Q33_o4

Answer: C

NEW QUESTION 14
Refer to the exhibit. From which table was the information obtained?

• A. FIB
• B. CEF
• C. LIB
• D. LFIB

Answer: D

NEW QUESTION 15
Referring to the Cisco IOS XR show command output exhibit,

what are three possible reasons that the GigabitEthernet0/1/0/10 LDP IGP sync status is not ready? (Choose three.)

• A. GigabitEthernet0/1/0/10 is not configured to run LDP.
• B. Graceful restart is not configured on the peer.
• C. The LDP neighbor on GigabitEthernet0/1/0/10 is not up.
• D. The OSPF neighbor on GigabitEthernet0/1/0/10 is not up.
• E. LDP is up on GigabitEthernet0/1/0/10, but no label bindings have been received from the peer.
• F. GigabitEthernet0/1/0/10 is a member link of Bundle-Ether9000.

Answer: CDE

NEW QUESTION 16
Which of the following three statements are correct regarding IPv6 QoS? (Choose three.)

• A. The traffic class field in the IPv6 header can be used to set specific precedence or DSCP values.
• B. A 20-bit flow label field enables per-flow processing.
• C. DS-TE is not supported by IPv6.
• D. Per-hop behavior in IPv6 networks is based on EXP bits.
• E. IPv6 QoS features are configured using the modular QoS CLI on Cisco routers.

Answer: ABE

Explanation: http://www.cisco.com/en/US/technologies/tk648/tk872/technologies_white_paper0900aecd 8026004d.pdf

NEW QUESTION 17
An engineer is tasked to deploy Fast Reroute for Cisco MPLS TE. Which LSR is in charge to request the Fast Reroute capability along the LSP?

• A. point of local repair
• B. tail end router
• C. ingress and egress PE routers
• D. head-end router
• E. BGP routers acting as route reflectors

Answer: D

NEW QUESTION 18
Only based on the Cisco IOS XR policy-map configuration exhibit,

which statement is correct?

• A. All DSCP AF41 marked packets will be dropped when the average queue length reaches 12,000 packets.
• B. DSCP AF11 marked packets will be randomly dropped when the average queue length reaches 10,000 packets.
• C. DSCP AF11 and AF41 marked packets are guaranteed a minimum bandwidth of 1 Mb/s.
• D. DSCP AF11 and AF41 marked packets are guaranteed a maximum bandwidth of 1 Mb/s.

Answer: B