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السؤال #1
Why do packet loops occur during the configuration of BIDIR-PIM?
A. The network does not support BIDIR-PIM
B. The network is partially upgraded to support BIDIR-PIM
C. The router has not been configured to advertise itself
D. No interface for carrying traffic for multicast groups has been configured
عرض الإجابة
اجابة صحيحة: A
السؤال #2
Which two tasks must you perform when you implement LDP NSF on your network? (Choose two.)
A. Enable NSF for BGP
B. Implement direct connections for LDP peers
C. Enable NSF for EIGRP
D. Disable Cisco Express Forwarding
E. Enable NSF for the link-state routing protocol that is in use on the network
عرض الإجابة
اجابة صحيحة: B
السؤال #3
Refer to the exhibit. Which condition must be met by the OSPF peer of router R1 before the two devices can establish communication?
A. The OSPF peer must use clear-text authentication
B. The OSPF peer must be configured as an OSPF stub router
C. The interface on the OSPF peer may have a different key ID, but it must use the same key value as the configured interface
D. The interface on the OSPF peer must use the same key ID and key value as the configured interface
عرض الإجابة
اجابة صحيحة: D
السؤال #4
Which MPLS design attribute can you use to provide Internet access to a major customer through a separate dedicated VPN?
A. The Internet gateway router is connected as a PE router to the MPLS backbone
B. The CE router supports VRF-Lite and the full BGP routing table
C. The Internet gateway inserts the full Internet BGP routing table into the Internet access VPN
D. The customer that needs the Internet access service is assigned to the same RTs as the Internet gateway
عرض الإجابة
اجابة صحيحة: A
السؤال #5
You are testing the capabilities of MPLS OAM ping. Which statement is true?
A. An LSP is not required for the reply to reach the ingress MPLS router
B. An LSP breakage results in the ingress MPLS router never receiving any reply
C. MPLS OAM ping works solely with P2P LSPs
D. MPLS OAM ping works solely with Cisco MPLS TE
عرض الإجابة
اجابة صحيحة: D
السؤال #6
Refer to the exhibit. A network engineer is implementing QoS services. Which two statements about the qos-group keyword on Cisco IOS XR are true? (Choose two.)
A. It marks packets for end-to-end QoS policy enforcement across the network
B. QoS group marking occurs on the ingress
C. The QoS group numbering corresponds to priority level
D. QoS group can be used in fabric QoS policy as match criteria
E. It cannot be used with priority traffic class
عرض الإجابة
اجابة صحيحة: C
السؤال #7
After you analyze your network environment, you decide to implement a full separation model for Internet access and MPLS L3VPN services. For which reason do you make this decision?
A. It enables EGP and IGP to operate independently
B. It enables you to choose whether to separate or centralize each individual service
C. It is easier to manage a system in which services are mixed
D. It requires only one edge router
عرض الإجابة
اجابة صحيحة: A
السؤال #8
Refer to the exhibit. An engineer wants to authenticate the OSPF neighbor between PE-A and PE-B using MD5. Which command on PE-B successfully completes the configuration?
A. PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611 PE-B(config- if)#ip ospf authentication null
B. PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611 PE-B(config-if)#ip ospf authentication key-chain 44578611
C. PE-B(config-if)#ip ospf message-digest-key 1 md5 44568611 PE-B(config- if)#ip ospf authentication null
D. PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611 PE-B(config- if)#ip ospf authentication message-digest
عرض الإجابة
اجابة صحيحة: BE
السؤال #9
Refer to the exhibit. If router A is the RP, which PIM mode can you configure so that devices will send multicast traffic toward the RP?
A. PIM-SM
B. BIDIR-PIM
C. PIM-SSM
D. PIM-DM
عرض الإجابة
اجابة صحيحة: C
السؤال #10
An engineer working for telecommunication company needs to secure the LAN network using a prefix list. Which best practice should the engineer follow when he implements a prefix list?
A. An engineer must identify the prefix list with a number only
B. The final entry in a prefix list must be /32
C. An engineer must include only the prefixes for which he needs to log activity
D. An engineer must use nonsequential sequence numbers in the prefix list so that he can insert additional entries later
عرض الإجابة
اجابة صحيحة: D
السؤال #11
Refer to the exhibit. Which statement about this configuration is true?
A. It requires a dynamic Cisco MPLS TE path to be configured for the tunnel to run
B. It requires OSPF to also be running to have optimized Cisco MPLS TE tunnels
C. It is the configuration for the head-end router of a Cisco MPLS TE tunnel with segment routing
D. It requires an explicit Cisco MPLS TE path to be configured for the tunnel to run
عرض الإجابة
اجابة صحيحة: C
السؤال #12
Which statement about segment routing prefix segments is true?
A. It is the longest path to a node
B. It is linked to an adjacency SID that is globally unique within the router
C. It is linked to a prefix SID that is globally unique within segment routing domain
D. It requires using EIGRP to operate
عرض الإجابة
اجابة صحيحة: B
السؤال #13
How can shared services in an MPLS Layer 3 VPN provide Internet access to the Customers of a central service provider?
A. Static routes on CE routers allow route leakage from a PE global routing table
B. The CE router can establish a BGP peering to a PE router and use the PE device to reach the Internet
C. The customer VRF uses route targets to import and export routes to and from a shared services VRF
D. Route distinguishers are used to identify the routes that CEs can use to reach the Internet
عرض الإجابة
اجابة صحيحة: D
السؤال #14
Which utility can you use to locate MPLS faults?
A. MPLS LSP ping
B. QoS
C. MPLS traceroute
D. EEM
عرض الإجابة
اجابة صحيحة: B

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