A．A field with a constraint placed on it.
B．A set of fields that have no data in them.
C．A set of fields in a table used to identify a record uniquely.
D．Fields from multiple tables that are used for sorting records.
(75) What Normal From is the table shown in the exhibit? (2 grades)
emps tbl
emp_idemp_nameemp_phonedept_namedept_phonedept_mgrname
(1) emp_id→emp_name, emp_phone, dept_name(2) dept_name→dept_phone, dept_mgrname
A．1NF
B．2NF
C．3NF
D．BCNF
(76) Which operating system can Oracle database NOT be used in?
A．DOS
B．UNIX
C．Windows95
D．IBM Mainframes
(77) Which values are NOT permitted to be part of the primary key?
A．NULL
B．punctuation
C．special characters
D．alpha-numeric characters
(78) Which phase of the software engineering process results in the Software Requirements Specification?
A．definition phase
B．engineering phase
C．maintenance phase
D．development phase
(79) When drawing multilevel data flow chart of top-down, the balance between parent chart and son chart must be taken into account, and to pass judgment for the balance of the charts is regularly maintained by (2 grades)
A．Output data
B．Data dictionary
C．Processing number
D．Input data
(80) Which is the strictest form of cohesion?
A．logical
B．functional
C．procedural
D．coincidental
(81) Which is NOT a concept of White Box Testing? (2 grades)
A．You should execute all loops at their boundary conditions.
B．You should execute all interfaces at their boundary conditions.
C．You should execute all logical decisions on their true and false sides.
D．You should execute all independent paths within a module at least once.
(82) Prototyping method is a dynamic design process, it requires people who use prototyping method should have the following capability
A．Proficient program expertise
B．Immediately acquire requirement
C．Coordinate & organize eloquently
D．Handle tools smartly
(83) There are two styles in the evolution of instruction set , that is CISC and RISC. Which chip belongs to the RISC?
A．i APX 432
B．VAX-11/780
C．Motorola 68000
D．Power PC
(84) In advanced PC bus or local bus, which one has the fastest data throughput?
A．ISA
B．PCI
C．MCA
D．EISA
(85) There are many methods in the CPETT(short for Computer Performance Evaluation Tools and Techniques). One of them is the method that runs a Kernel as the load of a computer. So we call it
A．Monitor method
B．Benchmark method
C．Model method
D．Physical method
(86) There are two common types in page replacement algorithm: stack and non-stack strategies. When a real page number increase only stack algorithm can increase the hit rate monotonously. In the following replacement algorithm,which one belongs to non-stack strategy?(2 grades)
A．FIFO
B．LRU |
