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網(wǎng)絡工程師每日一練試題內(nèi)容(2025/12/30)
試題1
Computer Network (1)(CND) refers to the strategies and efforts undertaken to secure data and information within a computer network.It involves implementing security measures and conducting security awareness and training programs to protect against potential(2).Many different cyber plagiarize is security solutions can contribute to your organization's CND DOG including(3),VPNs,access control systems,and more. CND involves protection, detection, and reaction.(4)provides a foundation for the program. It is the base of operation, from the base,and detected incidents,the(5)includes taking immediate steps to stop an incident in progress.查看答案
試題參考答案:D、D、A、B、D
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題2
Windows2000有兩種認證協(xié)議,即Kerberos和PKI,下面有關這兩種認證協(xié)議的描述中,正確的是 (1) 在使用Kerberos認證時,首先向密鑰分發(fā)中心發(fā)送初始票據(jù) (2) ,請求一個會話票據(jù),以便獲取服務器提供的服務。
(1)A、Kerberos和PKI都是對稱密鑰
B、Kerberos和PKI都是非對稱密鑰
C、Kerberos是對稱密鑰,而PKI是非對稱密鑰
D、Kerberos是非對稱密鑰,而PKI是對稱密鑰
(2)A、RSA
B、TGT
C、DES
D、LSA
查看答案
試題參考答案:C、B
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題3
在一個網(wǎng)絡中,有交換機A、B、C,A與B、B與C之間都有冗余鏈路,為了避免網(wǎng)絡環(huán)路,應配置以下哪種協(xié)議( )查看答案
試題參考答案:A
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題4
STP協(xié)議的作用是(60) 。
A.防止二層環(huán)路
B.以太網(wǎng)流量控制
C.劃分邏輯網(wǎng)絡
D.基于端口的認證
查看答案
試題參考答案:A
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題5
在無線局域網(wǎng)通信技術中,紅外線通信的優(yōu)點不包括( )。查看答案
試題參考答案:D
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題6
IEEE 802.3ae 10Gb/s 以太網(wǎng)標準支持的工作模式是( )。
A.單工
B.半雙工
C.全雙工
D.全雙工和半雙工
查看答案
試題參考答案:C
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題7
無線通信中數(shù)據(jù)包中引入冗余位的主要作用是( )。查看答案
試題參考答案:D
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題8
某單位為營業(yè)部分配的網(wǎng)絡號是10.10.7.64/26,該網(wǎng)絡有( )個可用IP地址。查看答案
試題參考答案:A
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題9
ZigBee技術中,IEEE 802.15.4定義的低速無線個人網(wǎng)包含的設備類型有( )。查看答案
試題參考答案:C
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
試題10
Serialization delay and (1) delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the (2) on the wire, and queuing delay (depth of the queue) are improved by increasing the (3) from a 128kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an (4) in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the (5) of the application will only result in an increased bandwidth with no positive effects on performance.
(1)A、buffering
B、queuing
C、receiving
D、timing
(2)A、electricity
B、digital
C、data
D、variable
(3)A、memory
B、cache
C、bandwidth
D、delay
(4)A、increase
B、decrease
C、maintenance
D、extension
(5)A、capability
B、cost
C、amount
D、performance
查看答案
試題參考答案:B、C、C、A、D
試題解析與討論:www.lfheli.com/exam/ExamDay.aspx?t1=8&day=2025/12/30
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