单选题What is a characteristic of ISL and 802.1q frame tagging in a switched LAN environment?（）AThey are used to find the best path through a network.BThey allow the exchange of filtering tables.CThey specify different implementations of the Spanning-Tree Protocol.DThey allow the exchange of routing tablesEThey provide inter-switch VLAN communication.
单选题
What is a characteristic of ISL and 802.1q frame tagging in a switched LAN environment?（）
A
They are used to find the best path through a network.
B
They allow the exchange of filtering tables.
C
They specify different implementations of the Spanning-Tree Protocol.
D
They allow the exchange of routing tables
E
They provide inter-switch VLAN communication.
参考解析
解析：
暂无解析
相关考题：
一台Cisco交换机和一台3COM交换机相连，相连端口都工作在Ⅵ,AN trunk模式，这两个端口应使用的VLAN协议是——。A．ISL和IEEE 802．10B．ISL和ISLC．ISL和IEEE 802．1QD．IEEE 802．1Q和IEEE 802．1Q
某校园网在升级改造时，将一台原有国外品牌交换机和一台新增国产品牌交换机相连，相连端口都工作在VLANTrunk模式。这些相连端口应使用的VLAN协议分别是 (65) 。 A．ISL和dotlq B．IEEE 802．1Q和IEEE 802．1Q C．ISL和ISL D．ISL和IEEE 802．10
一台Cisco交换机和一台3COM交换机相连，相连端口都工作在VLANTnmk模式下，这两个端口应使用的VLAN协议分别是(9)。A．ISL和IEEE 802.10B．ISL和ISLC．ISL和IEEE 802.1QD．IEEE 802.1Q和IEEE 802.1Q
You need to decide on which trunking method to implement in the Ezonexam network. What is a characteristic of ISL and 802.1q frame. tagging in a switched LAN environment?A．They are used to find the best path through a network.B．They allow the exchange of filtering tables.C．They specify different implementations of the Spanning-Tree Protocol.D．They allow the exchange of routing tablesE．They provide inter-switch VLAN communication.
Which statement is correct about logical units on Juniper Router interfaces?() A.Logical units are used only when a Layer 2 identifier is present such as a VLANB.A logical unit of 0 is required when using a frame-relay DLCIC.A logical unit is always requiredD.Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.
VLAN Tagging, also known as Frame Tagging, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How does ERS use the VLAN tag?（）A. provide service internetworkingB. support transparency for Layer 2 framesC. indicate destination as a connection identifierD. map to the DLCI in service internetworking
When configuring VLANs on an autonomous access point，what must be configured on theconnected switchport？（）A、802.1q trunkingB、VTP trunkingC、ISL trunkingD、DPT trunking
When configuring vlans on an autonomous access point. What must be configured on the connected switchport？（）A、802.1q trunkingB、vtp trunkingC、isl trunkingD、dpt trunking
What is a characteristic of ISL and 802.1q frame tagging in a switched LAN environment?（）A、They are used to find the best path through a network.B、They allow the exchange of filtering tables.C、They specify different implementations of the Spanning-Tree Protocol.D、They allow the exchange of routing tablesE、They provide inter-switch VLAN communication.
ISL is being configured on a Company switch. Which of the following choices are true regarding the ISL protocol？ （）A、 It can be used between Cisco and non-Cisco switch devices.B、 It calculates a new CRC field on top of the existing CRC field.C、 It adds 4 bytes of protocol-specific information to the original Ethernet frame.D、 It adds 30 bytes of protocol-specific information to the original Ethernet frame.
The core Company switches are configured to use 802.1Q trunks. Which three statements are correct with regard to the IEEE 802.1Q standard？（）A、 The IEEE 802.1Q frame format adds a 4 byte field to a Ethernet frameB、 The packet is encapsulated with a 26 byte header and a 4 byte FCSC、 The protocol uses point-to-multipoint connectivityD、 The protocol uses point-to-point connectivityE、 The IEEE 802.1Q frame uses multicast destination of 0x01-00-0c-00-00F、 The IEEE 802.1Q frame retains the original MAC destination address
VLAN Tagging, also known as Frame Tagging, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How does ERS use the VLAN tag?（）A、provide service internetworkingB、support transparency for Layer 2 framesC、indicate destination as a connection identifierD、map to the DLCI in service internetworking
You are designing your network to be able to use trunks. As part of this process you are comparing the ISL and 802.1Q encapsulation options. All of these statements about the two encapsulation options are correct except which one？（）A、Both support normal and extended VLAN ranges.B、ISL is a Cisco proprietary encapsulation method and 802.1Q is an IEEE standard.C、ISL encapsulates the original frame.D、Both support native VLANs.E、802.1Q does not encapsulate the original frame.
Which two of these are characteristics of the 802.1Q protocol?（）A、it is a layer 2 messaging protocol which maintains vlan configurations across network.B、it includes an 8-bit field which specifies the priority of a frame.C、it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.D、it modifies the 802.3 frame header,and thus requires that the FCS be recomputed.E、it is a trunking protocol capable of carring untagged frames.
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
Which statement is correct about logical units on Juniper Router interfaces?（）A、Logical units are used only when a Layer 2 identifier is present such as a VLANB、A logical unit of 0 is required when using a frame-relay DLCIC、A logical unit is always requiredD、Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.
多选题The core Company switches are configured to use 802.1Q trunks. Which three statements are correct with regard to the IEEE 802.1Q standard？（）AThe IEEE 802.1Q frame format adds a 4 byte field to a Ethernet frameBThe packet is encapsulated with a 26 byte header and a 4 byte FCSCThe protocol uses point-to-multipoint connectivityDThe protocol uses point-to-point connectivityEThe IEEE 802.1Q frame uses multicast destination of 0x01-00-0c-00-00FThe IEEE 802.1Q frame retains the original MAC destination address
单选题You are designing your network to be able to use trunks. As part of this process you are comparing the ISL and 802.1Q encapsulation options. All of these statements about the two encapsulation options are correct except which one？ （）A Both support normal and extended VLAN ranges.B ISL is a Cisco proprietary encapsulation method and 802.1Q is an IEEE standard.C ISL encapsulates the original frame.D Both support native VLANs.E 802.1Q does not encapsulate the original frame.
单选题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
多选题Which two of these are recommended practices with trunks？（）Ause ISL encapsulationBuse 802.1q encapsulationCset ISL to desirable and auto with encapsulation negotiate to support ILS protocol negotiationDuse VTP server mode to support dynamic propagation of VLAN information across the networkEset DTP to desirable and desirable with encapsulation negotiate to support DTP protocol negotiation
单选题Which statement is correct about logical units on Juniper Router interfaces?（）ALogical units are used only when a Layer 2 identifier is present such as a VLANBA logical unit of 0 is required when using a frame-relay DLCICA logical unit is always requiredDLogical units are not required unless ATM or 802.1Q VLAN tagging is configured.
多选题Which two of these are characteristics of the 802.1Q protocol?（）Ait is a layer 2 messaging protocol which maintains vlan configurations across network.Bit includes an 8-bit field which specifies the priority of a frame.Cit is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.Dit modifies the 802.3 frame header,and thus requires that the FCS be recomputed.Eit is a trunking protocol capable of carring untagged frames.
单选题You are designing your network to be able to use trunks. As part of this process you are comparing the ISL and 802.1Q encapsulation options. All of these statements about the two encapsulation options are correct except which one？（）ABoth support normal and extended VLAN ranges.BISL is a Cisco proprietary encapsulation method and 802.1Q is an IEEE standard.CISL encapsulates the original frame.DBoth support native VLANs.E802.1Q does not encapsulate the original frame.
单选题What is a characteristic of ISL and 802.1q frame tagging in a switched LAN environment?（）AThey are used to find the best path through a network.BThey allow the exchange of filtering tables.CThey specify different implementations of the Spanning-Tree Protocol.DThey allow the exchange of routing tablesEThey provide inter-switch VLAN communication.
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