●Models drawn by the system analysts during the process of the structured analysis are(72).(72) A.PERTsB.EMVC.UMLsD. DFDs
题目
●Models drawn by the system analysts during the process of the structured analysis are(72).
(72) A.PERTs
B.EMV
C.UMLs
D. DFDs
相似考题
更多“●Models drawn by the system analysts during the process of the structured analysis are(72) ”相关问题
-
第1题：
We know a computer is a machine that processes data(stored in main memory)into information, under control of a stored program. We also know that, internally, a computer is a binary machine; thus the data and the program instruictions must be stored in binary form. Characters are represented in(71). Numbers are stored as binary numbers, with each bit's positional value significant. A computer's main memory is divided into bytes, words or both(depending on the system), and each of these basic storage units is assigned an(72). Using this address, the processor can read or write selected bytes or words.
The processor consists of a clock, an instruction control unit, an arithmetic and logic unit, and registers. Once a program is stored in main memory, the processor can begin to execute it. During(73), the instruction control unit fetches an instruction from main memory; during(74), the arithmetic and logic unit executes it. Precisely timed electronic pulses generated by the clock drive this basic(75)
A．a binary code
B．words
C．registers
D．positional values
正确答案：A
-
第2题：
____ analysts’ predictions, McKnight Electronic engineers were able to create a battery capable of lasting twice as long as previous models.A.Nevertheless
B.Contrary to
C.Except
D.Provided that答案：B解析：A选项意为“然而、不过”，后面接从句，B选项意为“与……相反”，C选项意为“除了、要不是”，D选项意为“假如、倘若”，后面接从句。题目意为“____分析师的预测，麦克奈特电子工程师能够制造出一种持续力是以前的型号两倍的电池。”因此选B，与分析师的预测相反。
-
第3题：
In other words, each connection creates a （72） witha length that may be totally different from another path created by another connection. This means that TCP cannot use the same retransmission time for all connections.
A.path
B.window
C.response
D.process答案：A解析：网络工程师 -
第4题：
●In computer science ,a data (72) is a way of storing data in acomputer so that it can be used efficiently.
(72)A.record
B.file
C.structure
D.pool
正确答案：C
-
第5题：
All three types of cryptography schemes have unique function mapping to specific.For example,the synunetric key（71）approach is typically used for theencryption of data providmg（72）,whereas asymmetric key cryptography is maidy used in key（73）and noruepudiation,thereby providing confidentiality and authentication.The hash（74）（noncryptic）,on the other hand,does not provide confidentiality but provides messageintegrity,and cryptographic hash algorithms provide message（75）and identity of peers during transport over insecure channels.
请作答74题。A.Algorithm
B.Secure
C.structure
D.encryption答案：A解析： -
第6题：
All three types of cryptography schemes have unique function mapping to specific．For example, the symmetric key approach （71） is typically used for the encryption of data providing（72）, whereas asymmetric key cryptography is maidy used in key（73）and nonrepudiation, thereby providing confidentiality and authentication． The hash（74）（noncryptic）, on the other hand, does not provide confidentiality but provides message integrity, and cryptographic hash algorithms provide message（75）and identity of peers during transport over insecure channels．A.Algorithm
B.Secure
C.structure
D.encryption答案：A解析：略