Pass4Test 는 여러분의 it전문가 꿈을 이루어 드리는 사이트 입다. Pass4Test는 여러분이 우리 자료로 관심 가는 인중시험에 응시하여 안전하게 자격증을 취득할 수 있도록 도와드립니다. 아직도  CCIE 351-001 (CCIE Cisco Certified InterNetworking Expert)  인증시험으로 고민하시고 계십니까?  CCIE 351-001 (CCIE Cisco Certified InterNetworking Expert)  인증시험 가이드를 사용하실 생각은 없나요? Pass4Test는 여러분께 편리를 드릴 수 있습니다.

 

만약 아직도   CCIE 351-001 (CCIE Cisco Certified InterNetworking Expert)  시험패스를 위하여 고군분투하고 있다면 바로 우리 Pass4 Test를 선택함으로 여러분의 고민을 날려버릴수 있습니다. 우리 Pass4Test에서는 최고의 최신의 덤프자료를 제공 함으로 여러분을 도와   CCIE 351-001 (CCIE Cisco Certified InterNetworking Expert)  인증자격증을 쉽게 취득할 수 있게 해드립니다. 만약 CCIE 351-001 (CCIE Cisco Certified InterNetworking Expert)  인증시험으로 한층 업그레이드된 자신을 만나고 싶다면 우리 Pass4Test선택을 후회하지 않을 것입니다.

 

Pass4Test를  선택함으로 여러분이  CCIE 351-001 (CCIE Cisco Certified InterNetworking Expert)  시험에 대한 부담은 사라질 것입니다.우리 Pass4 Test는 끊임없는 업데이트로 항상 최신버전의  CCIE 351-001 (CCIE Cisco Certified InterNetworking Expert)  시험덤프를 제공하는 사이트입니다. 만약 덤프품질을 확인하고 싶다면 우리Pass4Test 에서 무료로 제공되는 덤프의 일부분 문제를 체험하시면 됩니다.Pass4Test 는 100%의 보장도를 자랑하며  CCIE 351-001 (CCIE Cisco Certified InterNetworking Expert)  시험을 한번에 패스하도록 도와드립니다.

 

 

NO.1 What two features in Cisco switches help prevent Layer 2 loops? (Choose two)
A. UniDirectional Link Detection
B. Hot Standby Router Protocol
C. Virtual Router Redundancy Protocol
D. PortFast
E. Root guard
F. Loop guard
Answer: AF

NO.2 Prior to 802.1w, Cisco implemented a number of proprietary enhancements to 802.1D to improve
convergence in a Layer 2 network. Which statement is correct?
A. Only UplinkFast and BackboneFast are specified in 802.1w; PortFast must be manually configured.
B. Only PortFast is specified in 802.1w; UplinkFast and BackboneFast must be manually configured.
C. None of the proprietary Cisco enhancements are specified in 802.1w.
D. PortFast, UplinkFast, and BackboneFast are specified in 802.1w.
Answer: D

NO.3 Which three port states are used by RSTP 802.1w? (Choose three.)
A. Listening
B. Learning
C. Forwarding
D. Blocking
E. Discarding
F. Disabled
Answer: BCE

NO.4 Spanning Tree Protocol calculates path cost based on which of these?
A. interface bandwidth
B. interface delay
C. interface bandwidth and delay
D. hop count
E. bridge priority
Answer: A

NO.5 Why does RSTP have a better convergence time than 802.1D?
A. It is newer
B. It has smaller timers
C. It has less overhead
D. It is not timer-based
Answer: D

NO.6 Which of these correctly identifies a difference between the way BPDUs are handled by 802.1w and
802.1D?
A. 802.1D bridges do not relay BPDUs.
B. 802.1w bridges do not relay BPDUs.
C. 802.1D bridges only relay BPDUs received from the root.
D. 802.1w bridges only relay BPDUs received from the root.
Answer: C

NO.7 If a port configured with STP loop guard stops receiving BPDUs, the port will be put into which state?
A. learning state
B. listening state
C. forwarding state
D. loop-inconsistent state
Answer: D

NO.8 What is the purpose of the STP PortFast BPDU guard feature?
A. enforce the placement of the root bridge in the network
B. ensure that a port is transitioned to a forwarding state quickly if a BPDU is received
C. enforce the borders of an STP domain
D. ensure that any BPDUs received are forwarded into the STP domain
Answer: C

NO.9 Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two
ways does loop guard differ from UDLD in loop detection and prevention? (Choose two)
A. Loop guard can be used with root guard simultaneously on the same port on the same VLAN while
UDLD cannot.
B. UDLD protects against STP failures caused by cabling problems that create one-way links.
C. Loop guard detects and protects against duplicate packets being received and transmitted on different
ports.
D. UDLD protects against unidirectional cabling problems on copper and fiber media.
E. Loop guard protects against STP failures caused by problems that result in the loss of BPDUs from a
designated switch port
Answer: BE

NO.10 Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree
Protocol IEEE 802.1D.? (Choose two)
A. Designated Root Cost
B. bridge ID priority
C. max age
D. bridge ID MAC address
E. Designated Root Priority
F. forward delay
Answer: BD

NO.11 Refer to the exhibit.
In the diagram, the switches are running IEEE 802.1s MST. Which ports are in the MST blocking state?
A. GE-1/2 and GE-2/1
B. GE-1/1 and GE-2/2
C. GE-3/2 and GE-4/1
D. no ports are in the blocking state
E. There is not enough information to determine which ports are in the blocking state.
Answer: D

NO.12 The classic Spanning Tree Protocol (802.1D 1998) uses which sequence of variables to determine the
best received BPDU?
A. 1) lowest root bridge id,
2) lowest sender bridge id,
3) lowest port id,
4) lowest root path cost
B. 1) lowest root path cost,
2) lowest root bridge id,
3) lowest sender bridge id,
4) lowest sender port id
C. 1) lowest root bridge id,
2) lowest sender bridge id,
3) lowest root path cost
4) lowest sender port id
D. 1) lowest root bridge id,
2) lowest root path cost,
3) lowest sender bridge id,
4) lowest sender port id
Answer: D

NO.13 Under which two circumstances would an RSTP bridge flush its CAM table? (Choose two)
A. Upon a port state change
B. Upon receiving a topology change notification
C. When transitioning from discarding to forwarding
D. When transitioning from forwarding to discarding
E. Only when changing from listening to discarding
F. When CAM resources have been completely used up
Answer: BC

NO.14 Which standard supports multiple instances of spanning tree?
A. 802.1D
B. 802.1s
C. 802.1w
D. 802.1z
Answer: B

NO.15 You have done a partial migration from 802.1D STP to 802.1w STP. Which of the following is true?
A. 802.1D and 802.1w interoperate only when the 802.1D STP domain supports rapid convergence.
B. Ports leading to 802.1D devices will run in compatibility mode, while the rest of the ports will run in
802.1w mode.
C. This is an invalid configuration and a partial migration cannot be done.
D. The bridge timers will be set to match the 802.1D devices.
E. A secondary root bridge will always be populated within the 802.1D domain.
F. If the root bridge is selected within the 802.1D domain, the whole STP domain will run in 802.1D
compatibility mode.
G. In partially migrated 802.1w networks, it is recommended to keep the STP diameter below 4.
Answer: B

NO.16 As a network administrator, can you tell me what the root guard feature provides in a bridged network?
A. It ensures that BPDUs sent by the root bridge are forwarded in a timely manner
B. It enforces the root bridge placement in the network
C. It ensures that all ports receiving BPDUs from the root bridge are in the forwarding state.
D. It ensures that the bridge is elected as Root Bridge in the network.
Answer: B

NO.17 Spanning Tree Protocol IEEE 802.1s defines the ability to deploy which of these?
A. one global STP instance for all VLANs
B. one STP instance for each VLAN
C. one STP instance per set of VLANs
D. one STP instance per set of bridges
Answer: C

NO.18 Refer to the exhibit.
Which switching feature is being tested?
A. loop guard
B. PortFast
C. root guard
D. BDPU guard
Answer: A

NO.19 Refer to the exhibit.
In the diagram, the switches are running IEEE 802.1w RSPT.
On which ports should root guard be enabled in order to facilitate deterministic root bridge election under
normal and failure scenarios?
A. GE-3/1, GE-3/2
B. FE-2/1, FE-3/2
C. GE-1/1.GE-1/2
D. GE-4/1, GE-4/2
E. GE-2/1, GE-2/2
F. GE-3/1, GE-3/2, GE-4/1, GE-4/2, FE-2/1, FE-3/2
Answer: F

NO.20 When STP UplinkFast is enabled on a switch utilizing the default bridge priority, what will the new bridge
priority be changed to?
A. 8192
B. 16384
C. 49152
D. 65535
Answer: C