McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) .
| 201. |
approach of a relationship between the systems. |
| A. | master-slave |
| B. | asynchronous |
| C. | synchronous |
| D. | isochronous |
| Answer» A. master-slave | |
| Explanation: none. | |
| 202. |
The most common modes of communication in clusters are |
| A. | message queues |
| B. | message passing interface |
| C. | pvm |
| D. | both message passing interface and pvm |
| Answer» D. both message passing interface and pvm | |
| Explanation: none. | |
| 203. |
The method followed in case of node failure, wherein the node gets disabled is |
| A. | stonith |
| B. | fibre channel |
| C. | fencing |
| D. | none of the mentioned |
| Answer» A. stonith | |
| Explanation: none. | |
| 204. |
Which of the following term is best defined by the statement “In a distributed system, several processes may operate at the same time on separate computers on the network.”? |
| A. | concurrency |
| B. | openness |
| C. | resource sharing |
| D. | fault tolerance |
| Answer» A. concurrency | |
| Explanation: none. | |
| 205. |
Which of the following is not a dimension of scalability? |
| A. | size |
| B. | distribution |
| C. | manageability |
| D. | interception |
| Answer» D. interception | |
| Explanation: interception is a communication conception. | |
| 206. |
A distributed system must defend itself against |
| A. | modification |
| B. | interruption |
| C. | fabrication |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: none. | |
| 207. |
QoS stands for |
| A. | quality of security |
| B. | quality of system |
| C. | quality of service |
| D. | none of the mentioned |
| Answer» C. quality of service | |
| Explanation: qos is particularly critical when the system is dealing with time-critical data such as sound or video streams. | |
| 208. |
though not identical to, RPCs. |
| A. | remote method invocations |
| B. | operating system |
| C. | client–server computing |
| D. | none of the mentioned |
| Answer» A. remote method invocations | |
| Explanation: the rmi framework handles the invocation of remote methods in a java program. | |
| 209. |
depend on there being a clear separation between the presentation of information and the computations that create and process that information. |
| A. | master-slave architectures |
| B. | client–server systems |
| C. | two-tier client–server architecture |
| D. | both master-slave architectures and client–server systems |
| Answer» B. client–server systems | |
| Explanation: one should design the architecture of distributed client–server systems so that they are structured into several logical layers, with clear interfaces between these layers. | |
| 210. |
Which architecture is used when there is a high volume of transactions to be processed by the server? |
| A. | multi-tier client–server architecture |
| B. | master-slave architecture |
| C. | distributed component architecture |
| D. | peer-to-peer architecture |
| Answer» A. multi-tier client–server architecture | |
| Explanation: multi-tier systems may be used when applications need to access and use data from different databases. | |
| 211. |
functionality on a remote server with client access through a web browser. |
| A. | saas |
| B. | soa |
| C. | configurability |
| D. | both saas and configurability |
| Answer» A. saas | |
| Explanation: the server maintains the user’s data and state during an interaction session. | |
| 212. |
Which architecture decentralized architectures in which there are no distinguished clients and servers? |
| A. | multi-tier client–server architecture |
| B. | master-slave architecture |
| C. | distributed component architecture |
| D. | peer-to-peer architecture |
| Answer» D. peer-to-peer architecture | |
| Explanation: peer-to-peer (p2p) systems are decentralized systems in which computations may be carried out by any node on the network. | |
| 213. |
Which of the following is not a ranking function? |
| A. | rank |
| B. | ntile |
| C. | row_number |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: ranking functions are a subset of the built in functions in sql server. | |
| 214. |
Point out the wrong statement. |
| A. | the row_number function simply assigns sequential numbering to the records of a result-set or to the records within groups of a result-set |
| B. | over clause is not required in all the ranking functions |
| C. | sql server introduced four different ranking functions |
| D. | all of the mentioned |
| Answer» B. over clause is not required in all the ranking functions | |
| Explanation: over clause is required in all the ranking functions and with that you specify the partitioning and ordering of records before the ranking functions are evaluated. | |
| 215. |
Which of the following is the simplest ranking function? |
| A. | rank |
| B. | ntile |
| C. | row_number |
| D. | none of the mentioned |
| Answer» C. row_number | |
| Explanation: the row_number ranking function is the simplest of the ranking functions.its purpose in life is to provide consecutive numbering of the rows in the result set by the order selected in the over clause for each partition specified in the over clause. | |
| 216. |
Which of the clause is not mandatory? |
| A. | over clause |
| B. | order by clause |
| C. | partition by clause |
| D. | all of the mentioned |
| Answer» C. partition by clause | |
| Explanation: partition by clause is not mandatory and if you don’t specify it all the records of the result-set will be considered as a part of single record group. | |
| 217. |
Point out the wrong statement. |
| A. | rank() returns the rank of each row in the result set of partitioned column |
| B. | dense_rank() is same as rank() function. only difference is returns rank without gaps |
| C. | ntile() distributes the columns in an ordered partition into a specified number of groups |
| D. | row_number() returns the serial number of the row order by specified column |
| Answer» C. ntile() distributes the columns in an ordered partition into a specified number of groups | |
| Explanation: ntile divides the partitioned result set into specified number of groups in an order. | |
| 218. |
Which of the function provides consecutive numbering except in the case of a tie? |
| A. | rank |
| B. | ntile |
| C. | row_number |
| D. | none of the mentioned |
| Answer» A. rank | |
| Explanation: rank function is used when you want all tied rows to have the same ranking. | |
| 219. |
Which of the following will not raise error if not used? |
| A. | over clause |
| B. | order by clause |
| C. | partition by clause |
| D. | all of the mentioned |
| Answer» C. partition by clause | |
| Explanation: partition by clause is not mandatory and when you specify a column/set of columns with partition by clause then it will divide the result-set into record groups/partitions. | |
| 220. |
Which of the following error message will be displayed if ORDER CLAUSE is not mentioned in ROW NUMBER function? |
| A. | “the ranking function “row_number” must have an order by clause.” |
| B. | “the ranking function “row_number” must have an over by clause.” |
| C. | “the ranking function “row_number” must have an partition by clause.” |
| D. | all of the mentioned |
| Answer» A. “the ranking function “row_number” must have an order by clause.” | |
| Explanation: order by clause is not optional clause in row number function. | |
| 221. |
Which of the following functions are similar? |
| A. | rank and ntile |
| B. | rank and dense_rank |
| C. | dense_rank and ntile |
| D. | none of the mentioned |
| Answer» B. rank and dense_rank | |
| Explanation: dense_rank() is same as rank() function. only difference is returns rank without gaps. | |
| 222. |
Which of the following function is used when you want all tied rows to have the same ranking? |
| A. | rank |
| B. | ntile |
| C. | row_number |
| D. | none of the mentioned |
| Answer» A. rank | |
| Explanation: the numbers assigned by rank are not necessarily consecutive. | |
| 223. |
TOPIC 4.8 LEARNING TO RANK |
| 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. | |
| 224. |
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. | |
| 225. |
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. | |
| 226. |
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 | |
| 227. |
What incorporates data, architectural, interface, and procedural representations of the software? |
| A. | design model |
| B. | user’s model |
| C. | mental image |
| D. | system image |
| Answer» A. design model | |
| Explanation: the requirements specification may establish certain constraints that help to define the user of the system, but the interface design is often only incidental to the design model. | |
| 228. |
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 | |
| 229. |
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. | |
| 230. |
A Rendering engine is not responsible for |
| A. | parsing the markup content (html) |
| B. | parsing style information (css, xsl, and so on) |
| C. | generating a visual presentation of the formatted content including media files referenced |
| D. | parsing style information (css only) |
| Answer» D. parsing style information (css only) | |
| Explanation: a rendering engine is a software that draws text and images on the screen. the engine draws structured text from a document (html, xml) and formats it properly based on the given style declarations (css, xsl, etc). the primary job of a browser engine is to transform html documents and other resources of a web page into an interactive visual representation on a user’s device. | |
| 231. |
Firefox uses rendering engine. |
| A. | webkit |
| B. | gecko |
| C. | trident |
| D. | presto |
| Answer» B. gecko | |
| Explanation: gecko is a web browser engine | |
| 232. |
What is the use of “defer” attribute? |
| A. | it defers rendering of html page |
| B. | it defers script execution until the page has been rendered |
| C. | it defers rendering of css attributes |
| D. | it is only for internal scripts |
| Answer» B. it defers script execution until the page has been rendered | |
| Explanation: the defer attribute is a boolean attribute. the script is executed after the page has finished parsing. the defer attribute is used if and only if there is src attribute. defer is for external not internal scripts. | |
| 233. |
Which of the following statements is false? |
| A. | async and defer attributes of script tag execute before the domcontentloaded event |
| B. | defer executes each script sequentially |
| C. | async executes each script when it is ready |
| D. | all older browsers supports async attribute |
| Answer» D. all older browsers supports async attribute | |
| Explanation: in async attribute, the script is executed asynchronously with the rest of the page (the script will be executed while the page continues the parsing). defer, the boolean attribute is set to indicate to a browser that the script is meant to be executed after the document has been parsed, but before firing | |
| 234. |
Which of the following is used to read a HTML page and render it? |
| A. | web browser |
| B. | web server |
| C. | web matrix |
| D. | web network |
| Answer» A. web browser | |
| Explanation: a web browser (commonly referred to as a browser) is a software application for retrieving, presenting and traversing information resources on the world wide web. a web server process, store and display output to client as per their request. web matrix is a discontinued cloud-connected website builder and html editor for windows. | |
| 235. |
Which of the following is the first web browser? |
| A. | nexus |
| B. | netscape navigator |
| C. | internet explorer |
| D. | mosaic |
| Answer» A. nexus | |
| Explanation: the first web browser was invented in 1990 called world wide web which was later renamed to nexus. in 1995, a graphical web browser named internet explorer was developed. the netscape is a web browser produced by netscape communications. ncsa mosaic, or mosaic, is the web browser which in turn popularized world wide web. | |
| 236. |
Who created the first web browser |
| A. | tim berners lee |
| B. | jacobs, lan |
| C. | marc andeersen |
| D. | mozilla foundation |
| Answer» A. tim berners lee | |
| Explanation: sir timothy john “tim” berners- lee, also known as timbl, is an english computer scientist, best known as the inventor of the world wide web. he made a proposal for an information management system in march 1989, and he implemented the first successful communication between a hypertext transfer protocol (http) client and server via the | |
| 237. |
The open source software version of netscape is |
| A. | chrome |
| B. | mozilla |
| C. | internet explorer |
| D. | erwise |
| Answer» B. mozilla | |
| Explanation: on february 23, 1998, netscape communications corporation created a project called mozilla to co-ordinate the development of the mozilla application suite, the open source version of netscape’s internet software, netscape communicator. | |
| 238. |
What is the main task of a problem-solving agent? |
| A. | solve the given problem and reach to goal |
| B. | to find out which sequence of action will get it to the goal state |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» C. all of the mentioned | |
| Explanation: the problem-solving agents are one of the goal-based agents. | |
| 239. |
What is state space? |
| A. | the whole problem |
| B. | your definition to a problem |
| C. | problem you design |
| D. | representing your problem with variable and parameter |
| Answer» D. representing your problem with variable and parameter | |
| Explanation: because state space is mostly concerned with a problem, when you try to solve a problem, we have to design a mathematical structure to the problem, which can only be through variables and parameters. eg. you have given a 4-gallon jug and another 3-gallon jug. neither has measuring marker on it. you have to fill the jugs with water. how can you get exactly 2 gallons of water in to 4 gallons. here the state space can defined as set of ordered pairs integers(x,y), such that x=0,1,2,3 or 4 and y=0,1,2 or 3; x represents the number of gallons in 4 gallon jug and y represents the quantity of water in the 3-gallon jug. | |
| 240. |
A search algorithm takes as an input and returns as an output. |
| A. | input, output |
| B. | problem, solution |
| C. | solution, problem |
| D. | parameters, sequence of actions |
| Answer» B. problem, solution | |
| Explanation: a search algorithm takes input as a problem and returns a solution to the problem as an output. | |
| 241. |
A problem in a search space is defined by one of these state. |
| A. | initial state |
| B. | last state |
| C. | intermediate state |
| D. | all of the mentioned |
| Answer» A. initial state | |
| Explanation: a problem has four components initial state, goal test, set of actions, path cost. | |
| 242. |
The Set of actions for a problem in a state space is formulated by a |
| A. | intermediate states |
| B. | initial state |
| C. | successor function, which takes current action and returns next immediate state |
| D. | none of the mentioned |
| Answer» C. successor function, which takes current action and returns next immediate state | |
| Explanation: the most common formulation for actions uses a successor function. given a particular state x, successor-fn(x) returns a set of (action, successor) ordered pairs, where each action is one of the legal actions in state x and each successor is a state that can be reached from x by applying the action. | |
| 243. |
The process of removing detail from a given state representation is called |
| A. | extraction |
| B. | abstraction |
| C. | information retrieval |
| D. | mining of data |
| Answer» B. abstraction | |
| Explanation: the process of removing detail from a representation is called abstraction. | |
| 244. |
The is a touring problem in which each city must be visited exactly once. The aim is to find the shortest tour. |
| A. | finding shortest path between a source and a destination |
| B. | travelling salesman problem |
| C. | map coloring problem |
| D. | depth first search traversal on a given map represented as a graph |
| Answer» B. travelling salesman problem | |
| Explanation: refer the tsp problem. | |
| 245. |
Web Crawler is a/an |
| A. | intelligent goal-based agent |
| B. | problem-solving agent |
| C. | simple reflex agent |
| D. | model based agent |
| Answer» A. intelligent goal-based agent | |
| Explanation: web crawling is type of search for a relevant document from given seed documents. focused crawlers exists, helps to improvise the search efficiency. | |
| 246. |
What is the major component/components for measuring the performance of problem solving? |
| A. | completeness |
| B. | optimality |
| C. | time and space complexity |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: for best performance consideration of all component is necessary. | |
| 247. |
A production rule consists of |
| A. | a set of rule |
| B. | a sequence of steps |
| C. | set of rule & sequence of steps |
| D. | arbitrary representation to problem |
| Answer» C. set of rule & sequence of steps | |
| Explanation: when you are trying to solve a problem, you should design how to get a step- | |
| 248. |
Which search method takes less memory? |
| A. | depth-first search |
| B. | breadth-first search |
| C. | linear search |
| D. | optimal search |
| Answer» A. depth-first search | |
| Explanation: depth-first search takes less memory since only the nodes on the current path are stored, but in breadth first search, all of the tree that has generated must be stored. | |
| 249. |
Which is the best way to go for Game playing problem? |
| A. | linear approach |
| B. | heuristic approach (some knowledge is stored) |
| C. | random approach |
| D. | an optimal approach |
| Answer» B. heuristic approach (some knowledge is stored) | |
| Explanation: we use a heuristic approach, as it will find out brute force computation, looking at hundreds of thousands of positions. e.g chess competition between human and ai based computer. | |
| 250. |
What is Architecture of a software based on? |
| A. | design |
| B. | requirements |
| C. | all of the mentioned |
| D. | none of the mentioned view answer |
| Answer» B. requirements | |
| Explanation: architecture of software depends on requirements. | |
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