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You are deploying two core switches，one in each building，50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state，and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？（）
- A、The switches are not the same model.
- B、You are not using the correct SFP.
- C、You are not using correct optical media converters.
- D、Configuration should be modified， because the distance is longer.
参考答案
更多 “You are deploying two core switches，one in each building，50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state，and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？（）A、The switches are not the same model.B、You are not using the correct SFP.C、You are not using correct optical media converters.D、Configuration should be modified， because the distance is longer.” 相关考题
考题
A new switch is being installed 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?（）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.
考题
To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus?()
A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 linkB. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 linkC. to two core switches from redundant distribution switches connected with a Layer 2 linkD. to two core switches from redundant distribution switches connected with a Layer 3 linkE. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
考题
You have just created a new VLAN on your network for inter-VLAN routing. What is one step that you should include in your VLAN-based implementation and verification plan？（）A、Verify that different native VLANs exist between two switches for security purposes.B、Verify that the switch is configured to allow for trunking on the switch ports.C、Verify that each switch port has the proper IP address space assigned to it for the new VLAN. D、Verify that the VLAN virtual interface has been correctly created and enabled.
考题
You enabled CDP on two Cisco Routers which are connected to each other. The Line and Protocol statusfor the interfaces on both routers show as UP but the routers do not see each other a CDP neighbors.Which layer of the OSI model does the problem most likely exist？（）A、PhysicalB、SessionC、ApplicationD、Data-LinkE、Network
考题
You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？ （）A、 The switches are not the same modelB、 You are not using the correct SFPC、 You are not using correct optical media convertersD、 Configuration should be modified， because the distance is longer
考题
To configure the VLAN trunking protocol to communicate VLAN information between two switches, what two requirements must be met?（）A、Each end of the trunk line must be set to IEEE 802.1E encapsulation.B、The VTP management domain name of both switches must be set the same.C、All ports on both the switches must be set as access port.D、One of the two switches must be configured as a VTP server.E、A rollover cable is required to connect the two switches together.F、A router must be used to forward VTP traffic between VLANs.
考题
To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus？（）A、 to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 linkB、 to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 linkC、 to two core switches from redundant distribution switches connected with Layer 2 linkD、 to two core switches from redundant distribution switches connected with Layer 3 linkE、 to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
考题
You have just created a new VLAN on your network. What is one step that you should include in your VLAN based implementation and verification plan？ （）A、Verify that different native VLANs exist between two switches for security purposes.B、Verify that the VLAN was added on all switches with the use of the show vlan command. C、Verify that the switch is configured to allow for trunking on the switch ports.D、Verify that each switch port has the correct IP address space assigned to it for the new VLAN.
考题
You need to connect two Company core switches via an ISL trunk. Which statement is true regarding the configuration of ISL trunks？ （）A、 A Catalyst switch cannot have ISL and IEEE 802.1q trunks enabled.B、 All Catalyst switches support ISL trunking.C、 A Catalyst switch will report giants if one side is configured for ISL while the other side is not.D、 ISL trunking requires that native VLANs match.E、 None of the other alternatives apply
考题
You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）A、The link is using IEEE 802.1Q protocolB、The link is using IEEE 802.1E protocolC、Spanning tree is disabledD、Not enough information to determineE、The native VLAN information is identical at each end of the linkF、The native VLAN information is different at each end of the link
考题
You are configuring an 802.1Q trunk between a Layer 2 switch and a firewall. You read in the documentation that the best way to set up a trunk is to set the port as dynamic desirable. The trunk is not coming up. Which one of these options would be a valid explanation？ （）A、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode ONB、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode to OFFC、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode asauto.D、The firewall does not support DTP. You should set the switchport trunk mode to ON
考题
You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？（）A、The switches are not the same model.B、You are not using the correct SFP.C、You are not using correct optical media converters.D、Configuration should be modified， because the distance is longer.
考题
You have just created a new VLAN on your network. What is one step that you should include in your VLAN-based implementation and verification plan？ （）A、Verify that trunked links are configured to allow the VLAN traffic.B、Verify that the switch is configured to allow for trunking on the switch ports.C、Verify that each switch port has the correct IP address space assigned to it for the new VLAN.D、Verify that different native VLANs exist between two switches for security purposes.
考题
Which of the following is true concerning best design practices at the switched Access layer of thetraditional layer2 Enterprise Campus Network？（）A、 Cisco NSF with SSO and redundant supervisors has the most impact on the campus in theAccess layerB、 Provides host-level redundancy by connecting each end device to 2 separate Access switches C、 Offer default gateway redundancy by using dual connections from Access switches toredundant Distribution layer switches using a FHRPD、 Include a link between two Access switches to support summarization of routing information
考题
A switch port on TK1 is being configured to support 802.1Q trunking. Which of the following are true about 802.1Q trunking？（）A、Both switches must be in the same VTP domain.B、The encapsulation type of both ends of the trunk does not have to match.C、The native VLAN on both ends of the trunk must be VLAN 1.D、802.1Q trunking can only be configured on a Layer 2 port.E、In 802.1Q trunking， all VLAN packets are tagged on the trunk link， except the native VLAN.
考题
The Company core switches use 802.1Q trunks to connect to each other. How does 802.1Q trunking keep track of multiple VLANs？ （）A、 It tags the data frame with VLAN information and recalculates the CRC valueB、 It encapsulates the data frame with a new header and frame check sequenceC、 It modifies the port index of a data frame to indicate the VLAND、 It adds a new header containing the VLAN ID to the data frameE、 None of the other alternatives apply
考题
An administrator of a peer-to-peer server application reports that the maximum bandwidth that his application receives is 90 Mb/s. You have an 8-port，100-Mb/s EtherChannel bundle on the switching infrastructure between the two servers， resulting in a bidirectional throughput of more than what is recorded. Which two solutions would allow for more bandwidth for the application？（）A、change the EtherChannel default hashing algorithm from XOR to use source port Layer 4 port load balancing to better load balance the trafficB、change the EtherChannel default hashing algorithm from XOR to use destination Layer 4 port load balancing to better load balance the trafficC、have the application recoded to use multiple connections instead of a single connection so EtherChannel can better load balance the trafficD、upgrade the CPU and memory of the compute devices so they can better process trafficE、upgrade the EtherChannel bundle to a single gigabit link because EtherChannel is not well suited for single-connection traffic
考题
Your company has 10 offices. The offices connect to the Internet by using a WAN link. The offices connect to each other by using a VPN connection. An Active Directory site exists for each office. You plan to deploy Exchange Server 2010. Each site will contain two Exchange Server 2010 servers. You need to recommend the placement of domain controllers and global catalog servers to meet thefollowing requirements： .Minimize the number of domain controllers .Must be able to deliver e-mail messages between users of the same office， if a domain controller and aWAN link fail simultaneously What should you recommend？（）A、In each site， install two global catalog servers.B、In each site， install two domain controllers. Enable Universal Group Membership caching for each site.C、In each site， install two domain controllers. Create a publishing point for an offline address list on one Exchange server in each site.D、In each site， install one domain controller that is configured as a global catalog server.Enable Universal Group Membership caching for each site.
考题
You are the network administrator for your company. The network consists of a single Active Directory domain with three sites named Site1， Site2， and Site3. The sites and site links are configured to use Site2 to connect Site1 and Site3. Each site contains three Windows Server 2003 domain controllers. A domaincontroller in each site is configured as a preferred bridgehead server. All user and group accounts are created in Site1. Several new users start work in Site2. When they attempt to log on to the network， the logon fails. You confirm that the user accounts are created and are visible in Site1 and Site2. You discover that the preferred IP bridgehead server in Site2 failed. You repair the server and confirm that replication is successful to Site2. You need to ensure that the failure of a single domain controller in any site will not interfere with Active Directory replication between sites. What are two possible ways to achieve this goal？（）A、 Configure an IP site link between Site1 and Site3.B、 Configure two domain controllers in each site as preferred IP bridgehead servers.C、 Configure two domain controllers in each site as preferred SMTP bridgehead servers.D、 Configure each site to have no preferred bridgehead servers.E、 Configure an SMTP site link between each of the sites. Assign a cost of 200 to the SMTP site link.
考题
Your company has a main office and 10 branch offices. Each office has a direct link to the Internet. Each branch office has a WAN link that connects to the main office. Your network consists of an Active Directory forest. Each office is configured as an Active Directory site. You plan to deploy an Exchange Server 2010 Hub Transport server in each site. You need to design a message routing solution to meet the following requirements： .Branch office connections to the Internet must be used to deliver e-mail .Branch office servers must use the WAN link to the main office to deliver e-mail to other branch offices.Branch office servers must be prevented from sending e-mail to the Internet by using the WAN link to themain office .The solution must minimize administrative overhead What should you include in the solution？（）A、one Send connector for each siteB、one SMTP site link for each siteC、two Send connectors for each siteD、10 Send connectors for each site
考题
You have a main office and five branch offices. The offices connect to each other by using a WAN link. An Active Directory site exists for each office. Each site has a separate IP site link to all other sites. The main office site is configured as a hub site. You have an Exchange Server 2010 organization. You discover that messages sent between offices are not routed through the Hub Transport servers in themain office. You need to ensure that all messages sent between offices are routed through the Hub Transport serversin the main office. What should you do？（）A、Change all IP site links to SMTP site links.B、Modify the Exchange-specific cost for each site link.C、From the Hub Transport servers in each site， create a journal rule.D、From the Hub Transport servers in each site， create a transport rule.
考题
Your company has 10 servers that run Windows Server 2008 R2. The servers have Remote Desktop Protocol (RDP) enabled for server administration. RDP is configured to use default security settings. All administrators' computers run Windows 7. You need to ensure the RDP connections are as secure as possible. Which two actions should you perform？（）A、Set the security layer for each server to the RDP Security Layer.B、Configure the firewall on each server to block port 3389.C、Acquire user certificates from the internal certification authority.D、Configure each server to allow connections only to Remote Desktop client computers that use Network Level Authentication.
考题
单选题You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？ （）A
The switches are not the same modelB
You are not using the correct SFPC
You are not using correct optical media convertersD
Configuration should be modified， because the distance is longer
考题
单选题You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？（）A
The switches are not the same model.B
You are not using the correct SFP.C
You are not using correct optical media converters.D
Configuration should be modified， because the distance is longer.
考题
单选题To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus?（）A
to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 linkB
to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 linkC
to two core switches from redundant distribution switches connected with a Layer 2 linkD
to two core switches from redundant distribution switches connected with a Layer 3 linkE
to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
考题
单选题The Company core switches use 802.1Q trunks to connect to each other. How does 802.1Q trunking keep track of multiple VLANs？ （）A
It tags the data frame with VLAN information and recalculates the CRC valueB
It encapsulates the data frame with a new header and frame check sequenceC
It modifies the port index of a data frame to indicate the VLAND
It adds a new header containing the VLAN ID to the data frameE
None of the other alternatives apply
考题
多选题You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）AThe link is using IEEE 802.1Q protocolBThe link is using IEEE 802.1E protocolCSpanning tree is disabledDNot enough information to determineEThe native VLAN information is identical at each end of the linkFThe native VLAN information is different at each end of the link
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