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MCQOPTIONS
This section includes 258 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Which of the following is not true of the conversion phase of the development life cycle? |
| A. | the user and systems personnel must work closely together. |
| B. | steps must be taken to phase out the old system |
| C. | documentation should be emphasized |
| D. | the non machine components of the system should be considered |
| Answer» D. the non machine components of the system should be considered | |
| 152. |
Data Definition Language (DDL) |
| A. | describes how data are structured in the data base |
| B. | specifies for the DBMS what is required; the techniques used to process data |
| C. | determine how data must be structured to produce the user's view |
| D. | All of the above |
| Answer» B. specifies for the DBMS what is required; the techniques used to process data | |
| 153. |
Nassi - schneiderman charts |
| A. | are being replaced by flowcharts |
| B. | often describe over lapping control structures |
| C. | are made up of boxes within boxes |
| D. | both (a) and (c) |
| Answer» D. both (a) and (c) | |
| 154. |
Conversion method in which users, being used to an old system, continue to use the old system, alongside the new system, is |
| A. | multi processing |
| B. | multitasking |
| C. | parallel run |
| D. | All of the above |
| Answer» D. All of the above | |
| 155. |
To which phase of SDLC, is file conversion related? |
| A. | System Implementation |
| B. | System analysis |
| C. | System development |
| D. | System design |
| Answer» B. System analysis | |
| 156. |
The packaged design includes all of the following except; |
| A. | program flowcharts |
| B. | system configuration |
| C. | module descriptions |
| D. | All of the above |
| Answer» E. | |
| 157. |
An appraisal, of a system's performance after it has been installed, is called system |
| A. | planning |
| B. | review |
| C. | maintenance |
| D. | batch Processing |
| Answer» C. maintenance | |
| 158. |
Advantages of data base system is (are) |
| A. | storage space duplication is eliminated |
| B. | all applications share centralized files |
| C. | data are stored once in the data base and are easily accessible when needed |
| D. | All of the above |
| Answer» E. | |
| 159. |
The analyst learns of the manager's information needs through use of |
| A. | mail survey |
| B. | in depth interview |
| C. | controlled experiment |
| D. | observation |
| Answer» C. controlled experiment | |
| 160. |
Which of the following file types has the least life |
| A. | Master file |
| B. | Program file |
| C. | Transaction file |
| D. | Work file |
| Answer» E. | |
| 161. |
The procedure for evaluating the relative performance of different computers, is done by the process called |
| A. | batch processing |
| B. | sequential processing |
| C. | bench marking |
| D. | All of the above |
| Answer» D. All of the above | |
| 162. |
During the maintenance phase |
| A. | System requirements are established |
| B. | System analysis is carried out |
| C. | Programs are tested |
| D. | All of the above |
| Answer» E. | |
| 163. |
A channel for communicating across a boundary between two or more sub¬systems is known as |
| A. | interface |
| B. | actigram |
| C. | walk through |
| D. | data path |
| Answer» C. walk through | |
| 164. |
A couple: |
| A. | is a data item that moves from one module to another |
| B. | is represented by a line joining two modules |
| C. | means that the upper module has the capability of calling the lower module |
| D. | none of the above |
| Answer» B. is represented by a line joining two modules | |
| 165. |
Which of the following does not occur in phase - 4 of the system development life cycle (SDLC) |
| A. | conduct interviews |
| B. | train users |
| C. | acquire hardware and software |
| D. | test the new system |
| Answer» B. train users | |
| 166. |
Which of the following is not a requirement of structured design? |
| A. | It should be made up of a hierarchy of modules |
| B. | It should use many GOTO statements |
| C. | The code should be executed in a top-to-bottom fashion within each module |
| D. | Each module should be as independent as possible of all other modules, except its parent |
| Answer» C. The code should be executed in a top-to-bottom fashion within each module | |
| 167. |
Unit testing is |
| A. | running the system with line data by the actual user |
| B. | making sure that the new programs do in fact process certain transactions according to Specifications |
| C. | is checking the logic of one or more programs in the candidate system |
| D. | testing changes made in an existing or a new program |
| Answer» E. | |
| 168. |
Which of the following tools is not used in modeling the new system? |
| A. | decision tables |
| B. | data dictionary |
| C. | data-flow diagrams |
| D. | All of the above |
| Answer» E. | |
| 169. |
Which of the following systems implementation approaches should be used if you want to run the old system and the new system at the same time for a specified period? |
| A. | direct |
| B. | pilot |
| C. | parallel |
| D. | phased |
| Answer» D. phased | |
| 170. |
During the system study, the executive vice-president and the other managers exercise their responsibility of |
| A. | planning |
| B. | controlling |
| C. | directing |
| D. | organizing |
| Answer» C. directing | |
| 171. |
Advantages of Relational Database Management systems are |
| A. | Flexibility, of relating different logical files |
| B. | Security controls can be more easily implemented. |
| C. | Data independence since it allows the database to grow by adding new attributes and relations. |
| D. | All of the above |
| Answer» E. | |
| 172. |
The time lag, between the keying of the last character on the keyboard input and the appearance of the first output character on the screen, is known as |
| A. | Key |
| B. | System review |
| C. | response time |
| D. | batch Processing |
| Answer» D. batch Processing | |
| 173. |
The processes at the most detailed level of the data flow diagrams are called |
| A. | transform descriptions |
| B. | functional primitives |
| C. | data flows |
| D. | interfaces |
| Answer» C. data flows | |
| 174. |
In phase 1 of the system development life cycle, which of the following aspects are usually analyzed? |
| A. | outputs |
| B. | input (transactions) |
| C. | controls |
| D. | All of the above |
| Answer» E. | |
| 175. |
Which of the following is an integrated collection of data with minimum redundancy, so that different applications can use the required data. |
| A. | records |
| B. | file |
| C. | DBMS |
| D. | schema |
| Answer» D. schema | |
| 176. |
In Prototyping, the following are used |
| A. | screen generators |
| B. | input generators |
| C. | application generators |
| D. | All of the above |
| Answer» E. | |
| 177. |
Which of the following is used when a company goes outside its organization to develop a new system? |
| A. | data flow diagram |
| B. | systems flowchart |
| C. | project dictionary |
| D. | request for proposal |
| Answer» E. | |
| 178. |
A Ring, refers to a record chain, the last of which refers to the first record, in the chain, is called a/an |
| A. | addressing |
| B. | location |
| C. | pointer |
| D. | loop |
| Answer» D. loop | |
| 179. |
Problem analysis is done during |
| A. | system design phase |
| B. | systems analysis phase |
| C. | before system test |
| D. | All of the above |
| Answer» C. before system test | |
| 180. |
A system design is said to be functionally modular if |
| A. | the system is able to handle all the function of the application |
| B. | each module performs a specific function and can be developed relatively independently by programmers |
| C. | the system makes extensive use of function. keys for maximum user assistance |
| D. | the system is developed using structured programming through COBOL or PASCAL |
| Answer» C. the system makes extensive use of function. keys for maximum user assistance | |
| 181. |
The two classifications of inputs are |
| A. | energies and maintenance |
| B. | maintenance and waste |
| C. | maintenance and signal |
| D. | products and waste |
| Answer» D. products and waste | |
| 182. |
A branch office, location or other data processing centres, where a newly developed system is used under normal operating conditions for several months, to test it, is called |
| A. | beta test data |
| B. | alpha test data |
| C. | string test data |
| D. | system test data |
| Answer» B. alpha test data | |
| 183. |
A feasibility study |
| A. | includes a statement of the problems |
| B. | considers a single solutions |
| C. | both (a) and (b) |
| D. | a list of alternative solution considered |
| Answer» B. considers a single solutions | |
| 184. |
A problem's _____ will answer the question, "What information will the computer need to know in order to either print or display the output times?" |
| A. | Input |
| B. | Output |
| C. | Processing |
| D. | Purpose |
| Answer» B. Output | |
| 185. |
The two classification of inputs are: |
| A. | energies and maintenance |
| B. | products and waste |
| C. | maintenance and waste |
| D. | maintenance and signal |
| Answer» E. | |
| 186. |
Top-down programming is |
| A. | a group of related fields |
| B. | a map of the programmer's view of the data |
| C. | an approach in which the top module is first tested then program modules are added from the highest level to the lowest level |
| D. | a series or group of components that perform one or more operations of a more complex system |
| Answer» D. a series or group of components that perform one or more operations of a more complex system | |
| 187. |
Back-up procedure helps in |
| A. | restoring the operation whenever there is a disk failure |
| B. | restoring both application and system software whenever there is disk corruption. |
| C. | restoring the data files whenever there is a system crash |
| D. | All of the above |
| Answer» E. | |
| 188. |
Pointers are useful in |
| A. | Locating a particular sector of a magnetic disk |
| B. | Pointing mistakes in input data |
| C. | Traversing a linked list |
| D. | All of the above |
| Answer» D. All of the above | |
| 189. |
Environment in systems parlance refers to |
| A. | a sub-system |
| B. | the boundary |
| C. | a part outside the boundaries |
| D. | All of the above |
| Answer» D. All of the above | |
| 190. |
System design aid should primarily |
| A. | help analyse both data and activities |
| B. | help in documentation |
| C. | help in programming |
| D. | generate code |
| Answer» B. help in documentation | |
| 191. |
The _____ symbol is used in a flowchart to represent a step that gets information from the user. |
| A. | Input/Output |
| B. | Process |
| C. | Selection/repetition |
| D. | Start/Stop |
| Answer» B. Process | |
| 192. |
Backup and recovery procedures are primarily implemented to |
| A. | handle the contingency when a file gets corrupted |
| B. | to provide data redundancy |
| C. | to show different versions of data and programs |
| D. | All of the above |
| Answer» B. to provide data redundancy | |
| 193. |
On a systems flowchart, the online manual keeping of input data is identified by using the |
| A. | online storage symbol |
| B. | Online keyboard symbol |
| C. | keeping operation symbols |
| D. | manual operation symbols |
| Answer» C. keeping operation symbols | |
| 194. |
On-line data entry is most suitable in the case of |
| A. | updating payroll master |
| B. | entering monthly journal entries |
| C. | Processing payment of cheque in a bank |
| D. | All of the above |
| Answer» D. All of the above | |
| 195. |
A design that consists of a hierarchy of modules; each module has a single entry and a single exit subroutine, is known as |
| A. | hierarchy structure |
| B. | top-down design |
| C. | Tuple |
| D. | Turnaround |
| Answer» C. Tuple | |
| 196. |
Which is the best process to access number of records from the same file? |
| A. | a batch job |
| B. | a real-time job |
| C. | an on-line job |
| D. | All of the above |
| Answer» B. a real-time job | |
| 197. |
A system design aid should primarily |
| A. | help analyse both data and activities |
| B. | help in documentation |
| C. | generate code |
| D. | using a graphical user interface |
| Answer» B. help in documentation | |
| 198. |
Documentation is prepared |
| A. | at every stage |
| B. | at system design |
| C. | at system analysis |
| D. | at system development |
| Answer» B. at system design | |
| 199. |
Main characteristic of "ring", in Data structure, is |
| A. | First record points only to the last record |
| B. | Last record points to the first record |
| C. | Many records point to one record |
| D. | Each record points to all other records |
| Answer» C. Many records point to one record | |
| 200. |
Which of the following is not a part of a Data Flow Diagram? |
| A. | disk storage |
| B. | arrow |
| C. | Data store |
| D. | process represented by a bubble circle (circle) |
| Answer» B. arrow | |