Cisco 351-001 (CCIE Cisco Certified InterNetworking Expert) 시험을 패스하여 자격증을 취득한다면 여러분의 미래에 많은 도움이 될 것입니다.Cisco 351-001 (CCIE Cisco Certified InterNetwo rking Expert) 시험 자격증은 it업계에서도 아주 인지도가 높고 또한 알아주는 시험이며 자격증 하나로도 취직은 문제없다고 볼만큼 가치가 있는 자격증이죠.Cisco 351-001 (CCIE Cisco Certified InterNetwo rking Expert) 시험은 여러분이 it지식 테스트 시험입니다.Pass4Test는 Cisco 351-001 (CCIE Cisco Certified InterNetwo rking Expert) 시험에 대하여 응시가이드를 해줄 수 있는 사이트입니다. Pass4Test는 여러분의 전업 지식을 업그레이드 시켜줄 수 있고 또한 한번에 Cisco 351-001 (CCIE Cisco Certified InterNetwo rking Expert)시험을 패스하도록 도와주는 사이트입니다. Pass4Test에서 제공하는 자료들은 모두 it업계 전문가들이 자신의 지식과 끊임없는경험등으로 만들어낸 퍼펙트한 자료들입니다. 품질과 정확도가  모두 보장되는 문제집입니다.Cisco 351-001 (CCIE Cisco Certified InterNetwo rking Expert)시험은 여러분이 it지식을 한층 업할수 있는 시험이며 우리 또한 일년무료 업데이트 서비스를 제공합니다.Pass4Test를 선택함으로  여러분은  Cisco 351-001 (CCIE Cisco Certified InterNetwo rking Expert)시험을 한방에 패스할수 있습니다.만약 시험에서 실패하시면  Pass4Test에서는 덤프비용 전액환불을 약속합니다.

 

 

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 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.3 Which standard supports multiple instances of spanning tree?
A. 802.1D
B. 802.1s
C. 802.1w
D. 802.1z
Answer: B

NO.4 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.5 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.6 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.7 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.8 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.9 Refer to the exhibit.
Which switching feature is being tested?
A. loop guard
B. PortFast
C. root guard
D. BDPU guard
Answer: A

NO.10 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.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 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

NO.13 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.14 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.15 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.16 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.17 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.18 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.19 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.20 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