多項(xiàng)選擇題It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit.Which of the following processes are required to accomplish this task?()

A.configure static frame relay map entries for each subinterface network.
B.remove the ip address from the physical interface
C.create the virtual interfaces with the interface command
D.configure each subinterface with its own IP address
E.disable split horizon to prevent routing loops between the subinterface networks
F.encapsulate the physical interface with multipoint PPP


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1.多項(xiàng)選擇題在OSI數(shù)據(jù)封裝過(guò)程中,以下哪項(xiàng)步驟描述正確?()

A.傳輸層把一個(gè)數(shù)據(jù)流分成段,并可以增加可靠性和流控制信息。
B.數(shù)據(jù)鏈路層增加物理源和目的地地址以及一個(gè)FCS字段。
C.當(dāng)網(wǎng)絡(luò)層封裝源和目的地主機(jī)的地址和協(xié)議相關(guān)的控制信息的幀分組被創(chuàng)建。
D.當(dāng)網(wǎng)絡(luò)層增加了第3層的地址和控制信息,以一個(gè)段分組被創(chuàng)建。
E.表示層轉(zhuǎn)換位成電壓為通過(guò)物理鏈路傳輸。

3.多項(xiàng)選擇題A Catalyst 2950 needs to be reconfigured. What steps will ensure that the old configuration is erased?()

A.Erase flash.
B.Restart the switch.
C.Delete the VLAN database.
D.Erase the running configuration.
E.Erase the startup configuration.
F.Modify the configuration register.

4.單項(xiàng)選擇題網(wǎng)絡(luò)接口上產(chǎn)生了沖突檢測(cè)和載波監(jiān)聽(tīng)共享的雙絞線的網(wǎng)絡(luò)上啟用。從這句話,什么是已知的關(guān)于網(wǎng)絡(luò)接口端口?()

A.這是一個(gè)為10Mb / s交換機(jī)端口。
B.這是一個(gè)的100Mbs交換機(jī)端口。
C.這是一個(gè)以太網(wǎng)端口工作在半雙工模式。
D.這是一個(gè)以太網(wǎng)端口工作在全雙工模式。
E.這是在一臺(tái)PC的網(wǎng)絡(luò)接口卡的端口。

5.多項(xiàng)選擇題Which statements describe two of the benefits of VLAN Trunking Protocol?()

A.VTP allows routing between VLANs.
B.VTP allows a single switch port to carry information to more than one VLAN.
C.VTP allows physically redundant links while preventing switching loops.
D.VTP simplifies switch administration by allowing switches to automatically share VLAN configuration information.
E.VTP helps to limit configuration errors by keeping VLAN naming consistent across the VTP domain.
F.VTP enhances security by preventing unauthorized hosts from connecting to the VTP domain.

6.多項(xiàng)選擇題Identify the four valid IPv6 addresses.()

A.::
B.::192:168:0:1
C.2000::
D.2001:3452:4952:2837::
E.2002:c0a8:101::42
F.2003:dead:beef:4dad:23:46:bb:101

7.單項(xiàng)選擇題Which of the following protocols uses both TCP and UDP ports?()

A.SMTP
B.Telnet
C.FTP
D.DNS

9.多項(xiàng)選擇題Which two statements are characteristics of a distance vector routing protocol?()

A.RIP is an example of distance vector routing protocols
B.Updates are periodic and include the entire routing table
C.Routing updates are sent only after topology changes
D.The protocol can be useful in hub-and-spoke and hierarchical networks
E.Convergence is usually faster than with link state protocols
F.Each router has its own view of the topology

10.多項(xiàng)選擇題What are three valid reasons to assign ports to VLANs on a switch?()

A.to make VTP easier to implement
B.to isolate broadcast traffic
C.to increase the size of the collision domain
D.to allow more devices to connect to the network
E.to logically group hosts according to function
F.to increase network security

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