(1) analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems.Ultimately, the system models become the(2) for designing and constructing an improved system. (3) is such a technique. The emphasis in this technique is process-centered.Systems analysts draw a series of process models called (4) . (5) is another such technique that integrates data and process concerns into constructs called objects.
(1)A、Prototyping
B、Accelerated
C、Model-driven
D、Iterative
(2)A、image
B、picture
C、layout
D、blueprint
(3)A、Structured analysis
B、Information Engineering
C、Discovery Prototyping
D、Object-Oriented analysis
(4)A、PERT
B、DFD
C、ERD
D、UML
(5)A、Structured analysis
B、Information Engineering
C、Discovery Prototyping
D、Object-Oriented analysis
分配給某校園網(wǎng)的地址塊是202.105.192.0/18,該校園網(wǎng)包含 ( ) 個(gè)C類網(wǎng)絡(luò)。
A、6
B、14
C、30
D、62
在Windows操作系統(tǒng)中,采用 ( ) 命令來測試到達(dá)目標(biāo)所經(jīng)過的路由器數(shù)目及IP地址。
A、ping
B、tracert
C、arp
D、nslookup
以下關(guān)于DHCP服務(wù)的說法中正確的是 ( ) 。
A、在一個(gè)子網(wǎng)內(nèi)只能設(shè)置一臺DHCP服務(wù)器,以防止沖突
B、在默認(rèn)情況下,客戶機(jī)采用最先到達(dá)的DHCP服務(wù)器分配的IP地址
C、使用DHCP服務(wù),無法保證某臺計(jì)算機(jī)使用固定IP地址
D、客戶端在配置時(shí)必須指明DHCP服務(wù)器IP地址,才能獲得DHCP服務(wù)