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CCIE Service Provider Written Exam Exam: 350-029
Demo Edition
CERT MAGIC
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QUESTION: 1 Based on the following output in Certmagic 1, which statement is true Certmagic 1#show mpls forwarding-table 50.0.0.3 detail Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface 19 17 50.0.0.3/32 0 Et0/0 192.168.0.14 -------
A. None of the other alternatives apply. B. If a labeled packet arrives with the top most label of 19, it will be replaced with label 17 and sent out on Ethernet 0/0 interface. C. If a labeled packet arrives with the top most label of 17, it will be replaced with label 19 and sent out on Ethernet 0/0 interface. D. If a labeled packet arrives with the top most label of 17, all the labels will be removed and a clear IP packet is sent to Next Hop 192.168.0.14 on Ethernet 0/0.
Answer: B
QUESTION: 2 Based on the following output in a router A running LDP, which statement is true? show mpls ldp bindings 50.0.0.1 32 tib entry: 50.0.0.1/32, rev 5 local binding: tag: imp-null remote binding:tsr:50.0.0.4:0, tag:16
A. The IP address 50.0.0.1/32 is assigned to the non-directly connected LDP neighbor, 50.0..0.4. B. The IP address 50.0.0.1/32 is assigned to its directly connected LDP neighbor, 50.0..0.4. C. None of the other alternatives apply. D. The IP address 50.0.0.1/32 is assigned to one of its own interfaces.
Answer: D
QUESTION: 3 What OSPF LSA is used to support MPLS-traffic Engineering ?
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A. Opaque LSA (Type 9 ) B. Opaque LSA (Type 10 ) C. NSSA LSA (Type 7 ) D. Opaque LSA (Type 11 ) E. External LSA (Type 5 )
Answer: B
QUESTION: 4 What statement about Transit AS is true?
A. Traffic and prefixes originating from Source AS are carried across a Transit AS to reach their destination AS. B. None of the other alternatives apply. C. Traffic and prefixes originating from Transit AS are carried across a Stub AS to their destination AS. D. Traffic and prefixes originating from Transit AS are carried across a Stub AS to their Source AS.
Answer: A
QUESTION: 5 In which state can BGP peers exchange Update messages?
A. Idle B. OpenConfirm C. OpenSent D. Active E. Established
Answer: E
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QUESTION: 6 Which of the following technologies can improve convergence time following a link failure in a service provider network?
A. VPLS B. MPLS TE FR C. RSVP D. MPLS VPN E. SNMP F. BFD
Answer: B,F
QUESTION: 7 A Successor is:
A. Any neighbor that is in the path towards the destination. B. Any neighbor that is in the path towards the destination and whose reported distance equals the feasible distance. C. A neighbor that has met the feasibility condition D. A neighbor that has met the feasibility condition and has the lowest cost path towards the destination
Answer: D
QUESTION: 8 Which of the following processes in IOS XR run exclusively on the Route Processor?
A. gsp B. wdsysmon C. sysmgr D. mpls_idp E. bgp
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Answer: D,E
QUESTION: 9 In which of the following lists of APS Action Requests is the priority correctly arranged from lowest to highest?
A. Wait-to-Restore, Forced Switch, Manual Switch, Lockout of Protection. B. Wait-to-Restore, Manual Switch, Forced Switch, Lockout of Protection C. Wait-to-Restore, Manual Switch, Lockout of Protection, Forced Switch D. Manual Switch, Wait-to-Restore, Lockout of Protection, Forced Switch. E. Lockout of Protection, Forced Switch, Manual Switch, Wait-to-Restore F. Lockout of Protection, Manual Switch, Forced Switch, Wait-to-Restore
Answer: B
QUESTION: 10 Which two statements regarding the IS-IS DIS election process are true? (Choose Two.)
A. A priority of 0 will prevent a router from becoming a DIS. B. Separate L1 and L2 election processes are held on a brodcast network. C. Adding a router with a higher priority than the current DIS will result in the new router becoming DIS. D. L1 routers on a broadcast network only establish adjacencies with the DIS. E. If there is a tie based on priority, the router whose attached interface has the lowest MAC address becomes the DIS. F. If the DIS becomes unavailable the backup DIS is promoted to DIS.
Answer: B,C
QUESTION: 11 Which descriptions of Netflow is correct?
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A. Netflow accounts for both transit traffic and traffic destined for the router. B. Netflow answers questions regarding IP traffic:who,what,where,when,and how C. By default,Netflow records bidirectional IP traffic flow. D. Netflow returns the subinterface information in the flow records.
Answer: A,B,D
QUESTION: 12 When configuring Multicast VPN (MVPN) over an MPLS core, both the Default and Data MDT is configured under which configuration mode?
A. router(config-router-af)# B. router(config)# C. router(config-router)# D. router(config-vrf)# E. router(config-if)#
Answer: D
QUESTION: 13 Which two statements best describe the signalling requirements of virtual circuit setup of VPLS and exchange of reachability information (MAC addresses)?
A. In Cisco VPLS the virtual circuit setup uses Multi-Protocol BGP as autodiscovery and signaling mechanism. Using BGP allows BPDUs to be propagated across VPLS in a scaleable fashion. B. Cisco VPLS does not require the exchange of reachability (MAC addresses) information via a signaling protocol. This information is learned from the data plane using standard address learning, aging, and filtering mechanisms defined for Ethernet bridging. C. Cisco VPLS uses directed LDP as a signalling protocol to exchange reachability (MAC addresses) information to avoid maintanance of ARP cache. D. In Cisco VPLS the virtual circuit setup uses the same LDP signaling mechanism defined
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for point-to-point services. Using a directed LDP session, each provider edge advertises a virtual circuit label mapping that is used as part of the label stack imposed on the Ethernet frames by the ingress provider edge during packet forwarding.
Answer: B,D
QUESTION: 14 Which IOS features are used to avoid Routing loops when dynamic Routing protocols are used between PE and CE in MPLS-VPN networks?
A. BGP feature allow-as in B. SHAM links with OSPF C. RPF Reverse Path forwarding. D. Site Of Origin SOO. E. BGP cost community F. Access-list Control in Distance Vector protocol like RIP and EIGRP.
Answer: D,F
QUESTION: 15 Which 4 statements regarding MPLS Label Stack Encoding is true?
A. A value of 3 represents the "Implicit NULL Label" B. A value of 4 represents the "Implicit NULL Label." C. A value of 2 represents the "IPv6 Explicit NULL Label" D. A value of 1 represents the "IPv1 Explicit NULL Label" E. A value of 0 represents the "IPv4 Explicit NULL Label." F. A value of 1 represents the "Router Alert Label". The use of this label is analogous to the use of the "Router Alert Option" in IP packets (for example, ping with record route option).
Answer: A,C,E,F
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QUESTION: 16 Unicast Reverse Path Forwarding (Urpf ) can work in the following modes:
A. Tunnel mode B. Loose mode C. Strict mode D. Safe mode E. Express mode
Answer: B,C
QUESTION: 17 Which command will display the MPLS label binding for IP prefix 1.1.1.0 on the router? A. show tag-switching interface e0/0 B. All of the above. C. A and B both will show the binding. D. show tag-switching tdp binding 1.1.1.0/24 E. show tag-switching tdp bindings neighbor 1.1.1.0
Answer: D
QUESTION: 18 Certmagic 1-wan1-core-abcxyz.com#show ip cache flow
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A network administrator issues the command "show ip cache flow" and finds the shown output. What can be concluded?
A. It is multicast traffic destined for 194.10.6.2 B. It is normal traffic. C. There is a potential DOS attack on device of 194.10.6.2. D. It is multicast traffic source from 194.10.6.2 E. There is a potential sacrificed host located at network 192.1.6.0 generating attacks.
Answer: C,E QUESTION: 19 Indentify the AVPs that must be present in L2TPv3ICRQ messages:
A. Remote session ID B. Assigned control connection ID C. PW capabilities list D. Message type E. PW type F. Hostname
Answer: A,D,E QUESTION: 20 What are BCP 38 (Best Common Practices 38)/RFC 2827 Ingress Packet Filtering Principles?
A. Filter as close to the core as possible B. Filter as close to the edge as possible C. Filter Smurf ICMP packets. D. Filter both source and destination where possible. E. Filter as precisely as possible
Answer: B,D,E
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