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【单选题】

A group of hosts are physically connected to the same switch. The hosts are used by employees of different departments and therefore do not need to directly exchange data on a regular basis.Which technology can a network administrator deploy to reduce unnecessary broadcast traffic between these hosts?（）

A、Micro segmentation

B、Transparent switching

C、peer-to-peer networking

D、port security

E、store-and-forward switching

F、virtual local area networks

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第1题
[多选题] Which two statements regarding firewall user authentication client groups are true?（） (Choose two.)

A、A client group is a list of clients associated with a group.  B、A client group is a list of groups associated with a client.  C、Client groups are referenced in security policy in the same manner in which individual clients are referenced.  D、Client groups are used to simplify configuration by enabling firewall user authentication without security policy.  

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第2题
[单选题] Which of the following are true of Ethernet technology?（）

A、Hosts use a logical ring topology.  B、Hosts use a logical bus topology  C、Hosts must wait for an electronic signal to transfer data.  D、Hosts are directly connected to a wiring concentrator called a MSAU.  

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第3题
[多选题] You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network?（）

A、There are 254 usable subnets.  B、There are 256 usable hosts per subnet.  C、There are 50 usable subnets.  D、There are 254 usable hosts per subnet.  E、There are 24 usable hosts per subnet.  F、There is one usable network.  

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第4题
[多选题] Which three statements are true about the Internet Group Management Protocol (IGMP)? （）

A、There are three IGMP modes: dense mode, sparse mode, and sparse - dense mode  B、IGMP is used to register individual hosts with a multicast group  C、IGMP version 3 enables a multicast receiving host to specify to the router which sources it should forward traffic from  D、IGMP messages a re IP datagrams with a protocol value of 2, destination address of 224.0.0.2, and a TTL value of 1  E、IGMP is a multicast routing protocol that makes packet - forwarding decisions independent of other routing protocols such as EIGRP  F、IGMP snooping ru ns on Layer 3 routers  

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第5题
[单选题] How dose a DHCP server dynamically assign IP address to host?（）

A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.  B、Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made,and another address is then assigned.  C、Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.  D、Addresses are permanently assigned so that the host uses the same address at all times.  

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第6题
[单选题] How dose a DHCP server dynamically assign IP address to host?（）

A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.  B、Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made ,and another address is then assigned.  C、Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.  D、Addresses are permanently assigned so that the host uses the same address at all times.  

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第7题
[单选题] How dose a DHCP server dynamically assign IP address to host?（）

A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.  B、Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made ,and another address is then assigned.  C、Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.  D、Addresses are permanently assigned so that the host uses the same address at all times.  

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第8题
[单选题] How does a DHCP server dynamically assign IP addresses to hosts?（）

A、Addresses are permanently assigned so that the host uses the same address at all times.  B、Addresses are assigned for a fixed period of time. At the end of the period, a new request for an address must be made, and another address is then assigned.  C、Addresses are leased to hosts. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease.  D、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.  

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第9题
[] Which of the following answers are correct characteristics of microsegmentation, in the context of a Local Area Network (LAN)?（）

A、A. Dedicated paths between sending and receiving hosts are established.  B、B. Multiple subnetwork broadcast addresses are created.  C、C. Multiple ARP tables are needed.  D、D. The decrease in the number of collision domains.  E、E. Broadcast domains are enhanced.  F、F. Additional bandwidth is used to connect hosts.  

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