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網(wǎng)絡(luò)工程師每日一練試題內(nèi)容(2021/12/29)
試題
1:
如果路由器收到了多個路由協(xié)議轉(zhuǎn)發(fā)的、關(guān)于某個目標(biāo)的多條路由,它如何決定采用哪個路由?(23) 。
A.選擇與自己路由協(xié)議相同的
B.選擇路由費(fèi)用最小的
C.比較各個路由的管理距離
D.比較各個路由協(xié)議的版本
試題解析與討論:
m.xiexiliangjiufa.com/st/2880529317.html試題參考答案:C
試題
2: 查看OSPF接口的開銷、狀態(tài)、類型、優(yōu)先級等的命令是( 1 );查看OSPF在接收報文時出錯記錄的命令是( 2 )。
(1)A.display ospf
B.display ospf error
C.display ospf interfacc
D.display ospf neighbor
(2)A.display ospf
B.display ospf error
C.display ospf interface
D.display ospf neighbor
試題解析與討論:
m.xiexiliangjiufa.com/st/4047919870.html試題參考答案:C、B
試題
3: The TTL field was originally designed to hold a time stamp, which was decremented by each visited router. The datagram was ( 1 ) when the value became zero. However, for this scheme, all the machines must have synchronized clocks and must know how long it takes for a datagram to go from one machine to another. Today, this field is used mostly to control the ( 2 ) number of hops (routers) visited by the datagram. When a source host sends the datagram, it ( 3 ) a number in this field. Each router that processes the datagram decrements this number by 1. If this value, after being decremented, is zero, the router discards the datagram.This field is needed because routing tables in the Internet can become corrupted.A datagram may travel between two or more routers for a long time without ever getting delivered to the ( 4 ).This field limits the ( 5 ) of a datagram.
(1)A.received
B.discarded
C.rejected
D.tansferred
(2)A.maximum
B.minimum
C.exact
D.certain
(3)A.controls
B.transmits
C.stores
D.receives
(4)A.switch
B.router
C.source host
D.destination host
(5)A.lifetime
B.moving time
C.receiving time
D.transmitting time
試題解析與討論:
m.xiexiliangjiufa.com/st/4048627556.html試題參考答案:B、A、C、D、A
試題
4:
在Windows Server 2003的DNS服務(wù)器中通過 ( ) 操作,實(shí)現(xiàn)多臺Web服務(wù)器構(gòu)成集群并共享同一域名。
A、啟用循環(huán)(round robin),添加每個WEB服務(wù)器的主機(jī)記錄
B、禁止循環(huán)(round robin),啟動轉(zhuǎn)發(fā)器指向每一個WEB服務(wù)器
C、啟用循環(huán)(round robin),啟動轉(zhuǎn)發(fā)器指向每一個WEB服務(wù)器
D、禁止循環(huán)(round robin),添加每個WEB服務(wù)器的主機(jī)記錄
試題解析與討論:
m.xiexiliangjiufa.com/st/89593085.html試題參考答案:A
試題
5:
MIB-2的系統(tǒng)組中,( )對象以7位二進(jìn)制數(shù)表示,每一位對應(yīng)OSI/RM 7層協(xié)議中的一層。
A.sysDeser
B.sysUpTime
C.sysName
D.SysServices
試題解析與討論:
m.xiexiliangjiufa.com/st/2376228653.html試題參考答案:D
試題
6:
在CPU中用于跟蹤指令地址的寄存器是 ( ) 。
A、地址寄存器(MAR)
B、數(shù)據(jù)寄存器(MDR)
C、程序計(jì)數(shù)器(PC)
D、指令寄存器(IR)
試題解析與討論:
m.xiexiliangjiufa.com/st/91633155.html試題參考答案:C
試題
7:
配置路由器時,PC機(jī)的串行口與路由器的(1)相連,路由器與PC 機(jī)串行口的通信的默認(rèn)數(shù)據(jù)速率為(2)。
(1)A.以太接口
B. 串行接口
C. RJ-45端口
D.console接口
(2)A.2400b/s
B.4800b/s
C. 9600b/s
D.10Mb/s
試題解析與討論:
m.xiexiliangjiufa.com/st/2337711156.html試題參考答案:D、C
試題
8: 以下關(guān)于IPsec協(xié)議的描述中,正確的是( )。
A.IPsec認(rèn)證頭(AH)不提供數(shù)據(jù)加密服務(wù)
B.IPsec封裝安全負(fù)荷(ESP)用于數(shù)據(jù)完整性認(rèn)證和數(shù)據(jù)源認(rèn)證
C.IPsec的傳輸模式對原來的IP數(shù)據(jù)報進(jìn)行了封裝和加密,再加上了新的IP頭
D.IPsec通過應(yīng)用層的Web服務(wù)器建立安全連接
試題解析與討論:
m.xiexiliangjiufa.com/st/2381229507.html試題參考答案:A
試題
9:
下圖中 ( ) 正確地表現(xiàn)了CSMA/CD和令牌環(huán)兩種局域網(wǎng)中線路利用率與平均傳輸延遲的關(guān)系。
試題解析與討論:
m.xiexiliangjiufa.com/st/85842956.html試題參考答案:B
試題
10: 關(guān)于交換式局域網(wǎng)的描述中,錯誤的是( ?。?。
A.核心設(shè)備是局域網(wǎng)交換機(jī)
B.支持多節(jié)點(diǎn)之間的并發(fā)連接
C.需通過廣播方式發(fā)送數(shù)據(jù)
D.通??商峁┨摂M局域網(wǎng)服務(wù)
試題解析與討論:
m.xiexiliangjiufa.com/st/315426724.html試題參考答案:C