McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) .
| 1. |
Which of the following is golden rule for interface design? |
| A. | place the user in control |
| B. | reduce the user’s memory load |
| C. | make the interface consistent |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: these golden rules actually form the basis for a set of user interface design principles that guide this important software design activity. | |
| 2. |
Which of the following is not a design principle that allow the user to maintain control? |
| A. | provide for flexible interaction |
| B. | allow user interaction to be interrupt-able and undo-able |
| C. | show technical internals from the casual user |
| D. | design for direct interaction with objects that appear on the screen |
| Answer» C. show technical internals from the casual user | |
| Explanation: the user interface should move the user into the virtual world of the application. | |
| 3. |
Which of the following is not a user interface design process? |
| A. | user, task, and environment analysis and modeling |
| B. | interface design |
| C. | knowledgeable, frequent users |
| D. | interface validation |
| Answer» C. knowledgeable, frequent users | |
| Explanation: these are the end user for whom the product is being built. | |
| 4. |
When users are involved in complex tasks, the demand on can be significant. |
| A. | short-term memory |
| B. | shortcuts |
| C. | objects that appear on the screen |
| D. | all of the mentioned |
| Answer» A. short-term memory | |
| Explanation: the interface should be designed to reduce the requirement to remember past actions and results. | |
| 5. |
Which of the following option is not considered by the Interface design? |
| A. | the design of interfaces between software components |
| B. | the design of interfaces between the software and human producers and consumers of information |
| C. | the design of the interface between two computers |
| D. | all of the mentioned |
| Answer» C. the design of the interface between two computers | |
| Explanation: none | |
| 6. |
A software might allow a user to interact via |
| A. | keyboard commands |
| B. | mouse movement |
| C. | voice recognition commands |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: all the mentioned input mediums are available today. | |
| 7. |
What establishes the profile of end-users of the system? |
| A. | design model |
| B. | user’s model |
| C. | mental image |
| D. | system image |
| Answer» B. user’s model | |
| Explanation: to build an effective user interface, all design should begin with an understanding of the intended users, including their profiles of their age, physical abilities, education, etc. | |
| 8. |
What combines the outward manifestation of the computer-based system , coupled with all supporting information that describe system syntax and semantics? |
| A. | mental image |
| B. | interface design |
| C. | system image |
| D. | interface validation |
| Answer» C. system image | |
| Explanation: when the system image and the system perception are coincident, users generally feel comfortable with the software and use it effectively. | |
| 9. |
Which of the following is used to access the database server at the time of executing the program and get the data from the server accordingly? |
| A. | embedded sql |
| B. | dynamic sql |
| C. | sql declarations |
| D. | sql data analysis |
| Answer» B. dynamic sql | |
| Explanation: embedded sql, the sql statements are identified at compile time using a preprocessor. the preprocessor submits the sql statements to the database system for | |
| 10. |
Which of the following header must be included in java program to establish database connectivity using JDBC ? |
| A. | import java.sql.*; |
| B. | import java.sql.odbc.jdbc.*; |
| C. | import java.jdbc.*; |
| D. | import java.sql.jdbc.*; |
| Answer» A. import java.sql.*; | |
| Explanation: the java program must import java.sql.*, which contains the interface definitions for the functionality provided by jdbc. | |
| 11. |
Which of the following invokes functions in sql? |
| A. | prepared statements |
| B. | connection statement |
| C. | callable statements |
| D. | all of the mentioned |
| Answer» C. callable statements | |
| Explanation: jdbc provides a callable statement interface that allows invocation of sql stored procedures and functions. | |
| 12. |
Which of the following function is used to find the column count of the particular resultset? |
| A. | getmetadata() |
| B. | metadata() |
| C. | getcolumn() |
| D. | get count() |
| Answer» A. getmetadata() | |
| Explanation: the interface resultset | |
| 13. |
Which of the following is a following statement is a prepared statements? |
| A. | insert into department values(?,?,?) |
| B. | insert into department values(x,x,x) |
| C. | sqlsetconnectoption(conn, sql autocommit, 0) |
| D. | sqltransact(conn, sql rollback) |
| Answer» A. insert into department values(?,?,?) | |
| Explanation: ? is used as a placeholder whose value can be provided later. | |
| 14. |
Which of the following is used as the embedded SQL in COBOL? |
| A. | exec sql <embedded sql statement >; |
| B. | exec sql <embedded sql statement > end-exec |
| C. | exec sql <embedded sql statement > |
| D. | exec sql <embedded sql statement > end exec; |
| Answer» B. exec sql <embedded sql statement > end-exec | |
| Explanation: exec sql <embedded sql statement >; is normally in c. | |
| 15. |
Which of the following is used to distinguish the variables in SQL from the host language variables? |
| A. | . |
| B. | – |
| C. | : |
| D. | , |
| Answer» B. – | |
| 16. |
Which of the following is used to access large objects from a database ? |
| A. | setblob() |
| B. | getblob() |
| C. | getclob() |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: none. | |
| 17. |
Which of the following is not a source used in Mid Infrared Spectrophotometer? |
| A. | nernst glower |
| B. | high pressure mercury arc lamp |
| C. | globar |
| D. | nichrome wire |
| Answer» B. high pressure mercury arc lamp | |
| Explanation: high pressure mercury arc lamp is used as the source for far ir spectrophotometer. rest of the options are used as a source in mid infrared spectrophotometer. | |
| 18. |
Which of the following is the wave number of near infrared spectrometer? |
| A. | 4000 – 200 cm-1 |
| B. | 200 – 10 cm-1 |
| C. | 12500 – 4000 cm-1 |
| D. | 50 – 1000 cm-1 |
| Answer» C. 12500 – 4000 cm-1 | |
| Explanation: the wave number of near infrared spectrometer ranges between 12500 – 4000. wavenumber is the reciprocal of wavelength. | |
| 19. |
Which of the following options are correct in terms of wavelength for the different types of IR spectrometer? |
| A. | near ir: 0.8 – 2.5 mm |
| B. | mid ir: 0.8 – 2.5 mm |
| C. | far ir: 2.5 – 50 mm |
| D. | mid ir: 50 – 100 mm |
| Answer» A. near ir: 0.8 – 2.5 mm | |
| Explanation: wavelength of near ir is 0.8 – | |
| 20. |
Which of the following is not a composition of Nernst glower or Nernst filament? |
| A. | oxides of zirconium |
| B. | oxides of barium |
| C. | oxides of yitrium |
| D. | oxides of thorium |
| Answer» B. oxides of barium | |
| Explanation: oxides of barium is not present in nernst glower. they are constructed by fusing oxides of zirconium, yitrium and thorium. | |
| 21. |
What is the composition of Globar rod which is used as a source in Mid IR spectroscopy? |
| A. | silicon carbide |
| B. | silver chloride |
| C. | silicon dioxide |
| D. | silver carbide |
| Answer» A. silicon carbide | |
| Explanation: globar is a silicon carbide rod. it is 5mm in diameter and 50mm long. | |
| 22. |
Bolometer, a type of detector, is also known as |
| A. | resistance temperature detector (rtd) |
| B. | thermistor |
| C. | thermocouple |
| D. | golay cell |
| Answer» B. thermistor | |
| Explanation: bolometers are also known as thermistors. it is a type of resistance thermometer constructed of metals such as platinum or nickel. | |
| 23. |
Which of the following is not used as pyroelectric material used in pyroelectric transducers in Infrared spectroscopy? |
| A. | triglycine sulphate |
| B. | deutrated triglycine sulphate |
| C. | some polymers |
| D. | tetraglycine sulphate |
| Answer» D. tetraglycine sulphate | |
| Explanation: pyroelectric materials are deutrated triglycine sulphate, triglycine sulphate and some polymers. they give rise to potential when subjected to a heating or cooling effect. | |
| 24. |
Which of the following is the principle of Golay cell which is used as a detector in IR spectroscopy? |
| A. | expansion of gas upon heating |
| B. | increase in resistance due to an increase in temperature and vice versa |
| C. | temperature difference gives rise to a potential difference in the material |
| D. | decrease in resistance due to an increase in temperature |
| Answer» A. expansion of gas upon heating | |
| Explanation: it is also known as pneumatic detector. the gases expand on heating and this in turn leads to the movement of a diaphragm just like in pneumatic sensors. | |
| 25. |
spread between IR transmitting windows. What is the name of this solid sample treatment technique? |
| A. | pressed pellet |
| B. | mull technique |
| C. | solid films |
| D. | solids run in solution |
| Answer» B. mull technique | |
| Explanation: the mentioned technique is mull technique. this method is used for qualitative analysis but not quantitative analysis. | |
| 26. |
Architecture description language represent architectural structures that can be divided into which of the following? |
| A. | static |
| B. | dynamic |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» C. all of the mentioned | |
| Explanation: architecture description language represent architectural structures that can be divided into static and dynamic. | |
| 27. |
Which of the following is the essential feature of ADL? |
| A. | the ability to provide structures |
| B. | the ability to declare a component and name its type |
| C. | the ability to support analytical capability |
| D. | all of the mentioned |
| Answer» B. the ability to declare a component and name its type | |
| Explanation: the ability to declare a component and name its type is the essential feature of adl. | |
| 28. |
Which of the following is true for pipe? |
| A. | from external perspective pipe has a true state |
| B. | from internal perspective pipe is stateless |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| Explanation: from external perspective pipe is stateless and from internal perspective pipe has a true state. | |
| 29. |
Which of the following in context to data in pipeline is correct? |
| A. | the format conversion should be allowed as long as data that exit the pipe are semantically equivalent to the data that enter the pipe |
| B. | the format conversion should be allowed as long as data that exit the pipe are syntactically equivalent to the data that enter the pipe |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» A. the format conversion should be allowed as long as data that exit the pipe are semantically equivalent to the data that enter the pipe | |
| Explanation: the format conversion should be allowed as long as data that exit the pipe are semantically equivalent to the data that enter the pipe. | |
| 30. |
Which of the following are considered for connectors? |
| A. | connectors transfers data bidirectionally |
| B. | connectors connect two component of type procedure |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» C. all of the mentioned | |
| Explanation: all of the mentioned are true with respect to connectors. | |
| 31. |
The behavior of the system can be communicated by which of the following? |
| A. | by using execution models |
| B. | by using animation techniques |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» C. all of the mentioned | |
| Explanation: the behavior of the system can be communicated by all the mentioned. | |
| 32. |
Which of the following is true? |
| A. | a dynamic structure requires a simulator to perform analysis |
| B. | a dynamic structure does not requires a simulator to perform any analysis |
| C. | connectors transfers data unidirectionaly |
| D. | none of the mentioned |
| Answer» A. a dynamic structure requires a simulator to perform analysis | |
| Explanation: a dynamic structure requires a simulator to perform analysis. | |
| 33. |
Which of the following must be estimated for performance analysis? |
| A. | reliability of each component |
| B. | resource usage of the component |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» B. resource usage of the component | |
| Explanation: resource usage of the component must be estimated for performance analysis. | |
| 34. |
Which of the following must be estimated for reliability analysis? |
| A. | reliability of each component |
| B. | resource usage of the component |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» A. reliability of each component | |
| Explanation: reliability of each component must be estimated for reliability analysis. | |
| 35. |
Which of the following is true? |
| A. | once resource information is provided, portions of the system can be generate automatically |
| B. | once resource information is provided, portions of the system cannot be generate automatically |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» A. once resource information is provided, portions of the system can be generate automatically | |
| Explanation: once resource information is provided, portions of the system can be generate automatically. | |
| 36. |
A piece of icon or image on a web page associated with another webpage is called |
| A. | url |
| B. | hyperlink |
| C. | plugin |
| D. | extension |
| Answer» B. hyperlink | |
| Explanation: urls are locators for resources present on the world wide web. a plugin provides extra functionality to the webpage. an extension provides modification allowance for the core functionality of a webpage. hyperlink is piece of icon or image on a web page associated with another webpage. | |
| 37. |
Dynamic web page |
| A. | is same every time whenever it displays |
| B. | generates on demand by a program or a request from browser |
| C. | both is same every time whenever it displays and generates on demand by a program or a request from browser |
| D. | is different always in a predefined order |
| Answer» B. generates on demand by a program or a request from browser | |
| Explanation: a dynamic web page provides different content every time the user opens it based on some events like new additions or time of the day. languages such as javascript are used to respond to client-side events while languages such as php as used to respond to server-side events. | |
| 38. |
What is a web browser? |
| A. | a program that can display a web page |
| B. | a program used to view html documents |
| C. | it enables user to access the resources of internet |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: a web browser is an application program that is used to access the world wide web resources, applications and websites. some examples of web browsers are google chrome, internet explorer and safari. | |
| 39. |
Common gateway interface is used to |
| A. | generate executable files from web content by web server |
| B. | generate web pages |
| C. | stream videos |
| D. | download media files |
| Answer» A. generate executable files from web content by web server | |
| Explanation: cgi is an interface through servers can run execute console-based executable files on a web server that generates dynamic web pages. a cgi script executes only when a request is made. the script then generates html. | |
| 40. |
Which one of the following is not used to generate dynamic web pages? |
| A. | php |
| B. | asp.net |
| C. | jsp |
| D. | css |
| Answer» D. css | |
| Explanation: css alone cannot be used to generate dynamic web pages as it does not provide many event handling functions. it can be used along with javascript to generate dynamic web pages which are visually compelling. | |
| 41. |
An alternative to JavaScript on windows platform is |
| A. | vbscript |
| B. | asp.net |
| C. | jsp |
| D. | php |
| Answer» A. vbscript | |
| Explanation: vbscript is a general-purpose, lightweight and active scripting language which can be used on microsoft visual basic. it was first released in 1996. | |
| 42. |
What is document object model (DOM)? |
| A. | convention for representing and interacting with objects in html documents |
| B. | application programming interface |
| C. | hierarchy of objects in asp.net |
| D. | scripting language |
| Answer» A. convention for representing and interacting with objects in html documents | |
| Explanation: dom is a hierarchical model i.e. a tree used to represent an html or xml document. every node of the tree an object that represents a part of the document. | |
| 43. |
Most demultiplexers facilitate which type of conversion? |
| A. | decimal-to-hexadecimal |
| B. | single input, multiple outputs |
| C. | ac to dc |
| D. | odd parity to even parity |
| Answer» B. single input, multiple outputs | |
| Explanation: a demultiplexer sends a single input to multiple outputs, depending on the select lines. demultiplexer converts single input into multiple outputs. | |
| 44. |
In 1-to-4 demultiplexer, how many select lines are required? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» A. 2 | |
| Explanation: the formula for total no. of outputs is given by 2n, where n is the no. of select lines. therefore, for 1:4 demultiplexer, 2 select lines are required. | |
| 45. |
In 1-to-4 multiplexer, if C1 = 1 & C2 = 1, then the output will be |
| A. | y0 |
| B. | y1 |
| C. | y2 |
| D. | y3 |
| Answer» D. y3 | |
| Explanation: it can be calculated from the figure shown below: | |
| 46. |
How many select lines are required for a 1- to-8 demultiplexer? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| Explanation: the formula for total no. of outputs is given by 2n, where n is the no. of select lines. in this case n = 3 since 23 = 8. | |
| 47. |
How many AND gates are required for a 1- to-8 multiplexer? |
| A. | 2 |
| B. | 6 |
| C. | 8 |
| D. | 5 |
| Answer» C. 8 | |
| Explanation: the number of and gates required will be equal to the number of outputs | |
| 48. |
Which function is used to return a handle to the database? |
| A. | preparedatabase() |
| B. | showdoccount() |
| C. | executesql() |
| D. | opendatabase() |
| Answer» A. preparedatabase() | |
| Explanation: preparedatabase() function is used to return a handle to database. it is necessary to first create the database. showdoccount() shows the real work after creating the database. syntax of calling a javascript function is: function preparedatabase(ready, error). | |
| 49. |
openDatabase() method does not take the argument in |
| A. | database name |
| B. | display name |
| C. | database version |
| D. | server name |
| Answer» D. server name | |
| Explanation: opendatabase() and opendatabasesync() methods takes the name of the database, version of the database, display name, estimated size in bytes of the data that is to be stored in the database. opendtabase() method works on workerutils and window, opendatabasesync() method works on workerutils. | |
| 50. |
Which feature is not used when SQL features are not being supported? |
| A. | begin |
| B. | end |
| C. | commit |
| D. | rollback |
| Answer» B. end | |
| Explanation: when sql feature is not supported then we use commit, begin, rollback sql features and are marked as bogus. user agent uses the statements that contain these three words in case of failure of the support of sql features. | |
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