单选题New switches have been purchased for a network upgrade. The objective for the network design emphasizes efficient, error-free transport instead of fast transport.Which switching mode should be configured on the new switches to provide error-free transp

题目

单选题

New switches have been purchased for a network upgrade. The objective for the network design emphasizes efficient, error-free transport instead of fast transport.Which switching mode should be configured on the new switches to provide error-free transport to the network? （）

cut-through

fragment-free

frame-filtering

store-and-forward

802.1q forwarding

VTP transparent mode

参考答案和解析

正确答案： F

解析：暂无解析

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相似问题和答案

第1题：

You are the network administrator setting up the IP network for a new branch office. You need at least 5 networks with 25 hosts each. You have been allocated a /24 network.Which prefix length will satisfy the given requirements?（）

A./24

B./26

C./27

D./28

参考答案：C

第2题：

When ordering switches for a new building, which of the following is the BEST way for the technician to determine the number of switches to put in each network closet?()

A. Review the architectural plans to see how many drops go to each closet.

B. Count the number of rooms near each closet and standardize eight drops per room.

C. Wireless is the new standard and no network switches will be needed in the building,

D. Count the number of phone ports and configure two network ports for each phone port.

参考答案：A

第3题：

A new switch is being installed in the Ezonexam network and you have been assigned the task of connecting it to an existing switch. In doing this, you want to set up the VLAN Trunking Protocol so that VLAN information can be passed between the switches. Which of the following must you do to accomplish this? (Choose all that apply).

A．You must set each end of the trunk line to IEEE 802.1e encapsulation.

B．You must set the same VTP management domain name on both switches.

C．You must set all ports on the two switches as access ports.

D．You must configure one of the switches as a VTP server.

E．You must use a rollover cable to connect the two switches.

正确答案：BD
解析：Explanation:ThefollowingdescribeswhatisneededinordertocorrectlysetupVTP:IncorrectAnswers:A.TheencapsulationcanbeeitherISLor802.1Q,andneedtomatchateachendofthetrunk.C.PortsmustonlybeassignedtoVLANS.Oncethatisdoneandthetrunkisupandrunning,theVLANinformationwillbepassedbetweentheswitches.E.AregularCAT5cableisusedtoconnecttheswitches,assuming10/100Ethernetisused.

第4题：

A switch that is to be added to the production network has been preconfigured （trunks， VLANs， VTP， and STP） and was tested in your lab. After installing the switch into the network， the entire network went down. What might explain what happened？（）

A、The new switch happened to be running Cisco Catalyst operating system， while the other network switches were running Cisco IOS Software.
B、The configuration revision of the new switch was higher than the configuration revision of the production VTP domain.
C、The link costs on the new switch are set to a high value， causing all ports on the new switch to go into a forwarding mode and none into blocking mode， thereby causing a spanning-tree loop.
D、The ports connecting to the two switches have been configured incorrectly. One side has the command switchport mode access and the other switchport mode trunk.

正确答案:B

第5题：

You have an Ethernet network. Which of the conditions below can lead to increased congestion on your network?()

A. The use of Full-Duplex Mode.

B. The Creation on New Collision Domains.

C. The Creation on New Broadcast Domains.

D. The Addition of Hubs to the Network.

E. The use of switches in the Network.

F. The Amount of ARP or IPX SAP Traffic.

参考答案：D, F

第6题：

The network administrator has just finished installing a new 10/100/1000 switch, but receives reports from the server administrator that servers connected to the new switch seem to be experiencing slow LAN connections. The network administrator checks the port connecting the new switch to the core switch and sees the following information:Which of the following is the MOST likely cause of the slow connections?（）

A. The servers have not had VLAN tagging enabled on their NICs.

B. Speed and duplex have not been set.

C. VLAN tagging was not set on the trunk.

D. The servers have been connected with CAT5 cable.

参考答案：B

第7题：

A. cut-through

B. fragment-free

C. frame-filtering

D. store-and-forward

E. 802.1q forwarding

F. VTP transparent mode

参考答案：D

第8题：

When is a switched network that is running the Spanning Tree Protocol considered to be fully converged?

A．when all switches have the same BID as the root switch

B．when all switches have received the MAC address of each neighboring switch

C．when every enabled switch port has been assigned a unique identifier

D．when every operating switch port is in either the blocking or forwarding state

E．when all switches are in either client, server, or transparent mode

正确答案：D
解析：Explanation:
States of the Spanning Tree Protocol:
Blocking A blocked port won't forward frames; it just listens to BPDUs. All ports are in blocking state by default when the switch is powered up. The purpose of the blocking state is to prevent the use of looped paths.

Listening The port listens to BPDUs to make sure no loops occur on the network before passing data frames. A port in listening state prepares to forward data frames without populating the MAC address table.

Learning The switch port listens to BPDUs and learns all the paths in the switched network. A port in learning state populates the MAC address table but doesn't forward data frames.

Forwarding The port sends and receives all data frames on the bridged port.

Disabled A port in the disabled state does not participate in the frame. forwarding or STP. A port in the disabled state is virtually nonoperational. In Blocking States, all ports are in blocking state. The purpose of the blocking state is to prevent the use of looped paths. The forward state sends and receives the all data frames in a loop free network. So these two states are considered to be fully converged.

第9题：

The revolution of machinery could __________without a new source of both movable and constant power in the new century.

A. be born
B. not have been born
C. have been born
D. have born

答案：B

解析：

考查虚拟语气。当从句中出现without/ but for 等词时，主句要用虚拟语气，根据句意，如果没有新能源，机械改革不会诞生，再结合整句话的时态，应该用could not have been born。

第10题：

A、cut-through
B、fragment-free
C、frame-filtering
D、store-and-forward
E、802.1q forwarding
F、VTP transparent mode

正确答案:D

New switches have been purchased for a network upgrade. The

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