信管网每日一练
网络工程师 - 每日一练 导航

网络工程师每日一练试题(2024/6/14)

2024年06月15日来源:信管网 作者:cnitpm

网络工程师当天每日一练试题地址:www.cnitpm.com/exam/ExamDay.aspx?t1=8

往期网络工程师每日一练试题汇总:www.cnitpm.com/class/27/e8_1.html

网络工程师每日一练试题(2024/6/14)在线测试:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

点击查看:更多网络工程师习题与指导

网络工程师每日一练试题内容(2024/6/14)

  • 试题1

    以下关于三重DES加密算法的描述中,正确的是(  )。
    A.三重DES加密使用两个不同密钥进行三次加密
    B.三重DES加密使用三个不同密钥进行三次加密
    C.三重DES加密的密钥长度是DES密钥长度的三倍
    D.三重DES加密使用一个密钥进行三次加密

    查看答案

    试题参考答案:A

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题2

    Windows Server 2003中能够发送SNMP请求报文并能对SNMP报文进行解析的服务为  (1)  ;用以监听被管主机发送来的陷入报文的服务为  (2)  。
    (1)A、NMP Service
    B、Task Scheduler
    C、Terminal Services
    D、SNMP Trap Service
    (2)A、SNMP Service
    B、Task Scheduler
    C、Terminal Services
    D、SNMP Trap Service

    查看答案

    试题参考答案:A、D

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题3

    如果用户网络需要划分成5个子网,每个子网最多20台主机,则适用的子网掩码是 ( ) 。
    A、255.255.255.192
    B、255.255.255.240
    C、255.255.255.224
    D、255.255.255.248

    查看答案

    试题参考答案:C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题4

    IEEE802.11MAC子层定义的竞争性访问控制协议是(66) 。
    A.CSMA/CA
    B.CSMA/CB
    C.CSMA/CD
    D.CSMA/CG

    查看答案

    试题参考答案:A

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题5

    一个项目为了修正一个错误而进行了变更。这个变更被修正后,却引起以前可以正确运行的代码出错。 ( ) 最可能发现这一问题。
    A、单元测试
    B、接受测试
    C、回归测试
    D、安装测试

    查看答案

    试题参考答案:C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题6

    Let us now see how randomization is done when a collision occurs . After a (1), time is divided into discrete slots whose length is equal to the worst-case round-trip propagation time on ether. To accommodate the longest path allowed by Ethernet, the slot time has been set to 512 bit times, or 51.2us.
    After the first collision, each station waits either 0 or 1 (2) times before trying again. If two stations collide and each one picks the same random number, they will collide again. After the second collision, each one picks either 0,1,2 or 3 at random and waits that number of slot times. If a third collision occurs (the probability of this happening is 0.25), then the next time the number of slots to wait is chosen at (3) from the interval 0 to 23-1.
    In general, after I collisions, a random number between 0 and 2i -1 is chosen, and that number of slots is skipped. However, after ten collisions have been reached, the randomization (4) is frozen at a maximum of 1023 slots. After 16 collisions, the controller throws in the towel and reports failure back to the computer. Further recoveries up to (5) layers.

    (1)A.datagram
     B.collision
     C.connection
    D.service
    (2)A.slot
     B.switch
     C.process
     D.fire
    (3)A.rest
     B.random
     C.once
     D.odds
    (4)A.unicast
     B.multicast
     C.broadcast
     D.interval
    (5)A.local
     B.next
     C.higher
     D.lower

    查看答案

    试题参考答案:B、A、B、D、C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题7

    IPv6链路本地单播地址的前缀为(   ).
    A.001
    B.1111 1110 10
    C.1111 1110 11
    D.1111 1111

    查看答案

    试题参考答案:B

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题8

    在CPU和主存之间设计Cache的目的是()。
    A.增大主存的带宽
    B.扩大主存容量
    C.提升CPU访问主存的效率
    D.提升DMA访问主存的效率

    查看答案

    试题参考答案:C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题9

    下列端口号中,()是电子邮件发送协议默认的服务端口号。
    A.23
    B.25
    C.110
    D.143

    查看答案

    试题参考答案:B

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

  • 试题10

    嗅探器可以使网络接口处于杂收模式,在这种模式下,网络接口 ( ) 。
    A、只能够响应与本地网络接口硬件地址相匹配的数据帧
    B、只能够响应本网段的广播数据帧
    C、只能响应组播信息
    D、能够响应流经网络接口的所有数据帧

    查看答案

    试题参考答案:D

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2024/6/14

温馨提示:因考试政策、内容不断变化与调整,信管网提供的以上信息仅供参考,如有异议,请考生以权威部门公布的内容为准!

分享至:

信管网 - 信息系统项目管理专业网站

下载APP-在线学习