A rectangle in a DFD represents A) a process B) a data store C) an external entity D) an input unit

A rectangle in a DFD represents
A) a process
B) a data store
C) an external entity
D) an input unit
by

1 Answer

Answer :

C) an external entity
by

Related questions

By an external entity we mean a A) Unit outside the system being designed which can be controlled by an analyst. B) Unit outside the system whose behavior is independent of the system being designed C) A unit external to the system being designed D) A unit which is not part of a DFD

Description : By an external entity we mean a A) Unit outside the system being designed which can be controlled by an analyst. B) Unit outside the system whose behavior is independent of the system being designed C) A unit external to the system being designed D) A unit which is not part of a DFD

Last Answer : C) A unit external to the system being designed

In a DFD external entities are represented by a A) Rectangle B) Ellipse C) Diamond shaped box D) Circle

Description : In a DFD external entities are represented by a A) Rectangle B) Ellipse C) Diamond shaped box D) Circle

Last Answer : A) Rectangle

Data store in a DFD represents. A) a sequential file B) a disk store C) a repository of data

Description : Data store in a DFD represents. A) a sequential file B) a disk store C) a repository of data

Last Answer : C) a repository of data

A data cannot flow between a store and i) a store ii) a process iii) an external entity A) i and iii B) i and ii C) ii and iii D) ii

Description : A data cannot flow between a store and i) a store ii) a process iii) an external entity A) i and iii B) i and ii C) ii and iii D) ii

Last Answer : A) i and iii

Data cannot flow between two data stores because A) it is not allowed in DFD B) a data store is a passive repository of data C) data can get corrupted D) they will get merged

Description : Data cannot flow between two data stores because A) it is not allowed in DFD B) a data store is a passive repository of data C) data can get corrupted D) they will get merged

Last Answer : D) they will get merged

In mapping of ERD to DFD a) entities in ERD should correspond to an existing entity/store in DFD b) entity in DFD is converted to attributes of an entity in ERD c) relations in ERD has 1 to 1 correspondence to processes in DFD d) relationships in ERD has 1 to 1 correspondence to flows in DFD

Description : In mapping of ERD to DFD a) entities in ERD should correspond to an existing entity/store in DFD b) entity in DFD is converted to attributes of an entity in ERD c) relations in ERD has 1 to 1 correspondence to processes in DFD d) relationships in ERD has 1 to 1 correspondence to flows in DFD

Last Answer : a) entities in ERD should correspond to an existing entity/store in DFD

DFD stands for A) Data Flow Document B) Data File Diagram C) Data Flow Diagram D) Non of the above

Description : DFD stands for A) Data Flow Document B) Data File Diagram C) Data Flow Diagram D) Non of the above

Last Answer : C) Data Flow Diagram

A data flow can A) Only emanate from an external entity B) Only terminate in an external entity C) May emanate and terminate in an external entity D) May either emanate or terminate in an external entity but not both

Description : A data flow can A) Only emanate from an external entity B) Only terminate in an external entity C) May emanate and terminate in an external entity D) May either emanate or terminate in an external entity but not both

Last Answer : C) May emanate and terminate in an external entity

A DFD is normally leveled as A) It is a good idea in design B) It is recommended by many experts C) it is easy to do it D) It is easier to read and understand a number of smaller DFDs than one large DFD

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Last Answer : D) It is easier to read and understand a number of smaller DFDs than one large DFD

A context diagram is used A) as the first step in developing a detailed DFD of a system B) in systems analysis of very complex systems C) as an aid to system design D) as an aid to programmer

Description : A context diagram is used A) as the first step in developing a detailed DFD of a system B) in systems analysis of very complex systems C) as an aid to system design D) as an aid to programmer

Last Answer : A) as the first step in developing a detailed DFD of a system

A context diagram A) Describes the context of a system B) is a DFD which gives an overview of the system C) is a detailed description of a system D) is not used in drawing a detailed DFD

Description : A context diagram A) Describes the context of a system B) is a DFD which gives an overview of the system C) is a detailed description of a system D) is not used in drawing a detailed DFD

Last Answer : B) is a DFD which gives an overview of the system

In Unix operating system, special files are used to : (A) buffer data received in its input from where a process reads (B) provide a mechanism to map physical device to file names (C) store list of file names plus pointers associated with i-nodes (D) store information entered by a user application program or utility program

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Last Answer : (B) provide a mechanism to map physical device to file names 

External Entities may be a A) Source of input data only B) Source of input data or destination of results C) Destination of results only D) Repository of data

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Last Answer : B) Source of input data or destination of results

Consider a 32 - bit microprocessor, with a 16 - bit external data bus, driven by an 8 MHz input clock. Assume that the microprocessor has a bus cycle whose minimum duration equals four input clock cycles. What is the maximum data transfer rate for this microprocessor? (A) 8x106 bytes/sec (B) 4x106 bytes/sec (C) 16x106 bytes/sec (D) 4x109 bytes/sec

Description : Consider a 32 - bit microprocessor, with a 16 - bit external data bus, driven by an 8 MHz input clock. Assume that the microprocessor has a bus cycle whose minimum duration equals four input clock cycles. What ... (A) 8x106 bytes/sec (B) 4x106 bytes/sec (C) 16x106 bytes/sec (D) 4x109 bytes/sec 

Last Answer : (B) 4x106 bytes/sec

Which if the following is not the type of data integrity. A) Key integrity B) Domain integrity C) Entity integrity D) Referential integrity

Description : Which if the following is not the type of data integrity. A) Key integrity B) Domain integrity C) Entity integrity D) Referential integrity

Last Answer : A) Key integrity

The one guideline to be followed while designing the database is A) A database design may be ambiguous. B) Unrelated data should be in the same table so that updating the data will be easy. C) It should avoid/reduce the redundancy. D) An entity should not have attributes.

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Last Answer : C) It should avoid/reduce the redundancy.

In an ER model, ……………. is described in the database by storing its data. A) Entity B) Attribute C) Relationship D) Notation

Description : In an ER model, ……………. is described in the database by storing its data. A) Entity B) Attribute C) Relationship D) Notation

Last Answer : A) Entity

An ER Model includes I. An ER diagram portraying entity types. II. Attributes for each entity type III. Relationships among entity types. IV. Semantic integrity constraints that reflects the business rules about data not captured in the ER diagram. (A) I, II, III & IV (B) I&IV (C) I, II & IV (D) I & III

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Last Answer : (A) I, II, III & IV

Which of the following statements is FALSE about weak entity set ? (A) Weak entities can be deleted automatically when their strong entity is deleted. (B) Weak entity set avoids the data duplication and consequent possible inconsistencies caused by duplicating the key of the strong entity. (C) A weak entity set has no primary keys unless attributes of the strong entity set on which it depends are included. (D) Tuples in a weak entity set are not partitioned according to their relationship with tuples in a strong entity set.

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Last Answer : (D) Tuples in a weak entity set are not partitioned according to their relationship with tuples in a strong entity set.

Which of the following provides the best description of an entity type? (A) A specific concrete object with a defined set of processes (e.g. Jatin with diabetes) (B) A value given to a particular attribute (e.g. height-230 cm) (C) A thing that we wish to collect data about zero or more, possibly real world examples of it may exist. (D) A template for a group of things with the same set of characteristics that may exist in the real world

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Last Answer : Answer: D

Process is ........................ A) A program in execution B) An instance of a program running on a computer. C) The entity that can be assigned to and executed D) All of the above.

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What is the most appropriate function of Memory Management Unit (MMU) ? (A) It is an associative memory to store TLB (B) It is a technique of supporting multiprogramming by creating dynamic partitions (C) It is a chip to map virtual address to physical address (D) It is an algorithm to allocate and deallocate main memory to a process

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Last Answer : (C) It is a chip to map virtual address to physical address

. ………………… is a special type of integrity constraint that relates two relations & maintains consistency across the relations. A) Entity Integrity Constraints B) Referential Integrity Constraints

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The number of attributes in relation is called as its ..................... A) Cardinality B) Degree C) Tuples D) Entity

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Last Answer : A) Weak entity

Based on the cardinality ratio and participation ............... associated with a relationship type, choose either the Foreign Key Design, the Cross Referencing Design or Mutual Referencing Design. (A) Entity (B) Constraints (C) Rules (D) Keys

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What kind of mechanism is to be taken into account for converting a weak entity set into strong entity set in entity-relationship diagram ? (A) Generalization (B) Aggregation (C) Specialization (D) Adding suitable attributes

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For a weak entity set to be meaningful, it must be associated with another entity set in combination with some of their attribute values, is called as : (A) Neighbour Set (B) Strong Entity Set (C) Owner entity set (D) Weak Set

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Last Answer : (C) Owner entity set 

In RDBMS, the constraint that no key attribute (column) may be NULL is referred to as: (A) Referential integrity (B) Multi-valued dependency (C) Entity Integrity (D) Functional dependency

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Consider the following Entity-Relationship (E-R) diagram and three possible relationship sets (I, II and III) for this E-R diagram: Image If different symbols stand for different values (e.g., t1 is definitely not equal to t2), then which of the above could not be the relationship set for the E-R diagram ? (A) I only (B) I and II only (C) II only (D) I, II and III

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The auditor's understanding of the entity and its environment consists of an understanding of the following aspects except a. Industry, regulatory, and other external factors, including the applicable financial reporting framework. b. Nature of the entity, including the entity's selection and application of accounting policies. c. Measurement and review of the entity's financial performance. d. Entity's selection and screening process of marketing and production personnel.

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Last Answer : Entity's selection and screening process of marketing and production personnel.

Interrupt which arises from illegal or erroneous use of an instruction or data is (A) Software interrupt (B) Internal interrupt (C) External interrupt (D) All of the above

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Which of the following are the principles tasks of the linker? I. Resolve external references among separately compiled program units. II. Translate assembly language to machine code. III. Relocate code and data relative to the beginning of the program. IV. Enforce access-control restrictions on system libraries. (A) I and II (B) I and III (C) II and III (D) I and IV

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Last Answer : (B) I and III

Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

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Last Answer : D) an interface that defines methods to read primitive data types.

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Last Answer : D) an interface that defines methods to read primitive data types.

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Last Answer : (B) Black-box testing

Which of the following statement(s) is/are TRUE with regard to software testing? I. Regression testing technique ensures that the software product runs correctly after the changes during maintenance. II. Equivalence partitioning is a white-box testing technique that divides the input domain of a program into classes of data from which test cases can be derived. (1) only I (2) only II (3) both I and II (4) neither I nor II

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Last Answer : (1) only I 

Match the following mechanisms for interrupting the execution of a process and their uses. i) Interrupt a) Call to an operating system function ii) Trap b) Reaction to an asynchronous external event iii) Supervisor Call c) Handling of a error or an exception condition A) i-a, ii-b, iii-c B) i-c, ii-a, iii-b C) i-b, ii-c, iii-a D) i-a, ii-c, iii-b

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Last Answer : C) i-b, ii-c, iii-a

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Last Answer : A) Hierarchy input process output

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Last Answer : (B) It runs the word count program to count the number of lines in its input, a, writing the result to b, but does it in the background.

Who or what group represents the single most talented musical entity of all time?

Description : Who or what group represents the single most talented musical entity of all time?

Last Answer : answer:You must be joking… When singing in the shower… I am “the single most talented musical entity of all time”.

Levi Strauss markets its blue jeans in many countries, developing its marketing strategy as if the world is a single entity. This approach to selling a standardised product in many national markets represents which level of international marketing? A)Exporting B)Accidental exporting C)International exporting D)Global marketing

Description : Levi Strauss markets its blue jeans in many countries, developing its marketing strategy as if the world is a single entity. This approach to selling a standardised product in many ... of international marketing? A)Exporting B)Accidental exporting C)International exporting D)Global marketing

Last Answer : D)Global marketing

Arithmetic and Logic Unit I. Perform Arithmetic operations II. Store Data III. Perform comparisons IV. Communicate with input devices Which of the following is true ? (1) I only (2) III only (3) I and II (4) I and III

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Last Answer : I and III

Draw and explain Level 1 DFD for railway reservation system.

Description : Draw and explain Level 1 DFD for railway reservation system.

Last Answer : The passenger can initiate either Reservation process or Enquiry process; If a user opts for Reservation process then the system shall proceed with ticket generation process and same needs to ... enquiry module then appropriate request shall be entertain and result to be displayed to the user.

Management’s attitude toward aggressive financial reporting and its emphasis onmeeting projected profit goals most likelywould significantly influence an entity’scontrol environment when a. External policies established by partiesoutside the entity affect its accountingpractices. b. Management is dominated by oneindividual who is also a shareholder. c. Internal auditors have direct access tothe board of directors and the entity’smanagement. d. The audit committee is active inoverseeing the entity’s financialreporting policies

Description : Management's attitude toward aggressive financial reporting and its emphasis on meeting projected profit goals most likely would significantly influence an entity's control environment when a. External ... d. The audit committee is active in overseeing the entity's financial reporting policies

Last Answer : Management is dominated by one individual who is also a shareholder

The auditor's understanding of the entity and its environment consists an understanding of the following aspects: a. Industry, regulatory and other external factors, including the applicable financial reporting framework b. Nature of the entity, including the entity's selection and application of accounting policies c. Objectives and strategies and the related business risks that may result in a material misstatement of the financial statements d. All of these.

Description : The auditor's understanding of the entity and its environment consists an understanding of the following aspects: a. Industry, regulatory and other external factors, including the applicable financial reporting ... may result in a material misstatement of the financial statements d. All of these.

Last Answer : All of these.

The nature of the entity refers to the following, except: a. The types of investments that it is making and plans to make. b. Other external factors, such as general economic conditions. c. The way that the entity is structured and how it is financed. d. The entity's operations, its ownership, and governance

Description : The nature of the entity refers to the following, except: a. The types of investments that it is making and plans to make. b. Other external factors, such as general economic conditions. c. The ... entity is structured and how it is financed. d. The entity's operations, its ownership, and governance

Last Answer : Other external factors, such as general economic conditions

Which of the following statements is not a distinction between independent auditing and internal auditing? a. Independent auditors represent third party users external to the auditee entity, whereas internal auditors report directly to management. b. Internal auditors are employees of the auditee, whereas independent auditors are independent contractors. c. The internal auditor's span of coverage goes beyond financial auditing to encompass operational and performance auditing. d. Although independent auditors strive for both validity and relevance of evidence, internal auditors are concerned almost exclusively with validity.

Description : Which of the following statements is not a distinction between independent auditing and internal auditing? a. Independent auditors represent third party users external to the auditee entity, ... validity and relevance of evidence, internal auditors are concerned almost exclusively with validity.

Last Answer : Although independent auditors strive for both validity and relevance of evidence, internal auditors are concerned almost exclusively with validity.

A data flow can A) Only a data store B) Only leave a data store C) Enter or leave a data Store D) Either enter or leave a data store but not both

Description : A data flow can A) Only a data store B) Only leave a data store C) Enter or leave a data Store D) Either enter or leave a data store but not both

Last Answer : C) Enter or leave a data Store