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多选题

How could the Ezonexam corporation benefit from using VLANs on their network?

(Select three answer choices.)

A
VLANs allow access to network services based on department, not physical location.
B
VLANs utilize packet filtering to enhance network security.
C
VLANs provide a low-latency, high bandwidth internetworking alternative.
D
VLANs provide a method of communication between IP addresses in large networks.
E
VLANs establish segmented broadcast domains in switched networks.
F
VLANs can greatly simplify adding, moving, or changing hosts on the network.

题目答案

AEF

答案解析

解析:EXPLANATION:VLANS ESTABLISH BROADCAST DOMAINS IN SWITCHED NETWORKS, SO BY VIRTUE OF HAVING THE OPTION TO CREATE MANY EFFICIENT BROADCAST DOMAINS, CONGESTION IS REDUCED AND NETWORK THROUGHPUT IS GREATLY ENHANCED. VLANS ALLOW NETWORKS TO BE DIVI
举一反三
多选题

You are the administrator of Microsoft Windows 2000 computer. You are preparing to install SQL Server 2000 on the computer.

Your company contains a variety of client computers that will connect to the SQL server 2000 computer by using a specific Net-Library, as shown in the following table.

You need to allow the client computers to connect to the SQL Server 2000 computer. You also want to minimize the number of configuration changes required on the client computers.

Which three actions should you take? (Each correct answer presents part of the solution. Choose three)

A
Install SQL Server 2000 as a named instance.
B
Install SQL Server 2000 as the default instance.
C
Configure the new instance for Mixed Mode Authentication.
D
Configure the new instance for Windows Authentication.
E
Configure the server to use the Named Pipes, IPX/SPX, and TCP/IP Net-Libraries.
F
Configure the server to use the Multiprotocol Net-Library.

题目答案

BCE

答案解析

解析:EXPLANATION:B: WE NEED TO USE A DEFAULT INSTANCE OF SQL SERVER IN ORDER TO ALLOW ALL THE DIFFERENT CLIENTS TO CONNECT.C: THE CLIENT COMPUTERS IN THIS SCENARIO WILL BE RUNNING WINDOWS 98, NOVEL NETWARE AND APPLE MACINTOSH. SQL SERVER AUTHENTICA
多选题

When a switch port is used as a VLAN trunk, which of the following trunk modes are valid? (Select all that apply.)

A
Blocking
B
Auto
C
Desirable
D
On
E
Transparent
F
Learning

题目答案

BCD

答案解析

解析:EXPLANATION:A TRUNK PORT CAN BE CONFIGURED AS ONE OF THE FOLLOWING 5 DIFFERENT MODES: ON, OFF, DESIRABLE, AUTO, OR NONEGOTIATE.THE TABLE BELOW IS A SUMMARY OF THE CONFIGURATION MODES.
多选题

根据下面的文字资料回答 24~25 题 HFC应用( 1 )传输技术,综合接人多种业务。HFC的用户端,从PC机接收的以太帧被封装在时隙中,经过( 2 )调制后,通过HFC网络的上行数据通路传送给CMTS。

第24题:文中( 1 )处正确的答案是( )。

A
模拟
B
模拟和数字
C
数字
D
基带

题目答案

BH

答案解析

综合应用了模拟和数字的传输技术,在传输过程中利用的是QPSK即四相调制技术。
多选题

● 与制造资源计划MRPⅡ相比,企业资源计划ERP最大的特点是在制定计划时将(5)考虑在一起,延伸管理范围。

(5)

A
经销商
B
整个供应链
C
终端用户
D
竞争对手

题目答案

BC

答案解析

暂无解析
多选题

● 基于用户名和口令的用户入网访问控制可分为(27)三个步骤。

(27)

A
用户名的识别与验证、用户口令的识别与验证、用户账号的默认限制检查
B
用户名的识别与验证、用户口令的识别与验证、用户权限的识别与控制
C
用户身份识别与验证、用户口令的识别与验证、用户权限的识别与控制
D
用户账号的默认限制检查、用户口令的识别与验证、用户权限的识别与控制

题目答案

AC

答案解析

暂无解析
多选题

● 与A A B + ? 等价的逻辑表达式是 (10) 。(⊕ 、+、? 分别表示逻辑异或、逻辑

加、逻辑乘)

(10)

A
A B +
B
A B +
C
A B ⊕
D
A B ?

题目答案

BC

答案解析

暂无解析
多选题

请在以下选项中,选择著作工具Authorware区别于PowerPoint的两项显著特点。

A
嵌入图像
B
播放视频
C
动画制作
D
丰富的交互式能力
E
灵活的流程控制能力

题目答案

DE

答案解析

暂无解析
多选题

关于万兆以太网的描述中,正确的是

A
支持半双工工作方式
B
支持全双工工作方式
C
支持光纤作为传输介质
D
支持双绞线作为传输介质
E
与传统以太网帧结构不同

题目答案

BC

答案解析

暂无解析
多选题

关于3DES的描述中,正确的是

A
S/MIME可使用3DES
B
运算速度比DES慢
C
运算速度比DES慢
D
属于流密码
E
分组长度可变

题目答案

AC

答案解析

暂无解析