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CCIE Service Provider Written Exam (V 4.1)

Question No: 151

What are the four key design requirements for mobile IP backhaul? (Choose four)

1. X2 interface turning point

2. bandwidth

3. Layer 2 Tunneling

4. native IPv6 support

5. DiffServQoS

6. MPLS-enabled interface

7. network timing distribution and recovery

8. mandatory Layer 3 access up to a cell site

Answer: C,D,G,H

Question No: 152

REP has been deployed in a segment. A network operations engineer notices that a segment port does not become operational. What is the root cause of this issue?

1. A neighbor is using a different port ID

2. A local port is in alternate port state

3. A neighbor port is in blocked state

4. More than one neighbor has the same segment ID

Answer: D

Question No: 153

ISP_X has IPv4 only enabled in the MPLS backbone. ISP_X must provide IPv6 services to its customers including IPv6 Internet access. Which IPv6 transition mechanism allows ISP_X to provide IPv6 connected by leveraging the existing MPLS IPv4 core network?

1. 6to4 tunnels

2. NAT444

3. 6PE

4. NAT64

5. 6RD

6. DS Lite

Answer: A

Question No: 154

Refer to the exhibit. Which statement is true about what this AS filter accomplishes?

1. It filters incoming BGP update with any AS number starting with the digit 5 and ending with the digit 5,and this only in an AS_PATH.

2. It filters incoming BGP update with any AS number matching “5.5”,but not 515,525.535 etc this only in an AS_SET

3. It filters incoming BGP update with any AS number starting with the digit 5 and ending with the digit 5 and this only in an AS_SET

4. It allows any number with the statement “.*”and this only in an AS_PATH.

Answer: B

Question No: 155 DRAG DROP

Drag and drop the Timing Protocol characteristics on the left onto the correct Timing

over Packet Solution on the right

Answer:

Explanation: Network Time Protocol : The most recent version introduced accuracy to the terms of microseconds and includes an extensibility mechanism

Precision Time Protocol : It defined a protocol for precise, real-time, network-wide synchronizaton accuracy in the sub millisecond range

Synchronous Ethernet : It provides accurate frequency synchronization, but does not provide time/phase synchronization

Time over IP connection and transfer of clock BOF: It was written to provide a roubust IP/MPLS-based time and frequency distribution architecture

Question No: 156

For the Cisco ASR 1000 Series, which module provides the physical and electrical terminal for the shared port

1. SPA

2. RP

3. ESP

4. SIP

Answer: A

Question No: 157 DRAG DROP

Drag and drop the QoS characteristics on the left onto its correct QoS mechanism on the right

Answer:

Explanation: Policing:

*can be implemented inbound on interfaces

*replenishes token bucket continuously

Shaping:

*must be implemented on CE#39;s when a service provider rate limits a circuit

*may increase latency of traffic

Question No: 158

In which two ways does the BGP graceful restart capability preserve prefix information during a restart? (Choose two.)

1. The peer router sends an end -of RIB message to the restarting router

2. The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table

3. The restarting router waits to receive updates from the neighboring routers.

4. The restarting router does not remove any stale prefixes after the timer for stale entries exTs.

5. The restarting router removes any stale prefixes after the timer for stale entries expires

Answer: C,E

Question No: 159

Which controller uses policy-based application profiles?

1. OpenStack

2. Cisco Open SDN controller

3. OpenFlow Controller

4. Cisco APIC

5. Cisco UCS director

Answer: D

Question No: 160

A service provider has the following VPLS requirements :

*A PE must learn dynamically remote PEs that are members of the same VPLS domain

*The VPLS signaling must be in a pint-to-multipoint fashion way according to RFC 4761 (kompella)

Which feature must be enabled to meet these requirements?

1. RSVP signaling

2. LDP signaling

3. BGP signaling

4. RSVP auto-discovery

5. LDP auto-discovery

Answer: C

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