Explanation:

The operation of processing each element in the list is known as Correct Answer Traversal The operation of processing each element in the list is known as traversal. It refers to the process of visiting (checking and/or updating) each node in a tree data structure, exactly once.

Explanation:

Email is a protocol of the following layer. Correct Answer Application layer An application layer is an abstraction layer that specifies the shared communications protocols and interface methods used by hosts in a communications network. The application layer abstraction is used in both of the standard models of computer networking: the Internet Protocol Suite (TCP/IP) and the OSI model.

Explanation:

Which of the following data structures are indexed structures? Correct Answer linear arrays A linear array, is a list of finite numbers of elements stored in the memory. In a linear array, we can store only homogeneous data elements. Elements of the array form a sequence or linear list, that can have the same type of data. Each element of the array, is referred by an index set.

Explanation:

___ is a statement that is executed automatically by the system. Correct Answer trigger constraint A database trigger is what is executed automatically in response to certain events on a particular table or view in a database. It is mostly used to maintain the integrity of the database.

Explanation:

what does a COMMIT statement do to a CURSOR : Correct Answer None of these The COMMIT statement releases all row and table locks, and erases any savepoints you marked since the last commit or rollback. Until your changes are committed: You can see the changes when you query the tables you modified, but other users cannot see the changes.

Explanation:

which data structure is used for indexing Correct Answer stack The data structure most commonly used for database indexes are B - trees, a specific kind of self - balancing tree. A picture's worth a thousand words, so here's an example. The main benefit of a B - tree is that it allows logarithmic selections, insertions, and deletions in the worst case scenario.

Explanation:

The term push and pop is related to the Correct Answer stacks Considered as a linear data structure, or more abstractly a sequential collection, the push and pop operations occur only at one end of the structure, referred to as the top of the stack. This data structure makes it possible to implement a stack as a singly linked list and a pointer to the top element.

Explanation:

Trojan can be introduced through ? Correct Answer emails Description: Mostly Trojans are introduced via email attachments. These emails are disguised in a way that they look authentic. Once the user downloads the attached file and runs it, the file starts corrupting the system. A Trojan can also come as a payload with freeware and shareware available on the Internet.

Explanation:

An acronym for conference on Data systems languages is Correct Answer CODASYL CODASYL is an acronym for "Conference on Data Systems Languages". This was a consortium formed in 1959 to guide the development of a standard programming language that could be used on many computers.

Explanation:

The step by step instructions that solve a problem are called Correct Answer An algorithm A step - by - step procedure used to solve a problem is called Algorithm. An algorithm (pronounced AL - go - rith - um) is a procedure or formula for solving a problem, based on conduction a sequence of specified actions. A computer program can be viewed as an elaborate algorithm.

Explanation:

How many layer internet protocol suite? Correct Answer 5 TCP/IP protocol suite is made of five layers: physical, data link, network, transport, and application. The first four layers provide physical standards, network interfaces, internetworking, and transport functions that correspond to the first four layers of the OSI model.

Explanation:

which O/S is recommended for real time systems? Correct Answer Lynx OS Typical examples of real time operating systems are those custom written for the Galileo and Voyager space probes. Because of extreme power and weight constraints, they needed to be coded extremely efficiently to use as little memory and to accomplish their tasks in as few operations as possible.

Explanation:

what is the value of 'd' after this line of code has been executed ? double d = Math round ( 2.5 + math random () ); Correct Answer 3 The Math.random() method returns a number greater than or equal to 0 and less than 1 . Since we can then be sure that the sum of that number and 2.5 will be greater than or equal to 2.5 and less than 3.5, we can be sure that Math.round() will round that number to 3. So Option B is the answer.

Explanation:

which one of the following is not an example is not an example redundancy ? Correct Answer Data Center A data center, or data centre, is a building, dedicated space within a building, or a group of buildings used to house computer systems and associated components, such as telecommunications and storage systems.

Explanation:

According to Boolean algebra the value of (A + AB) (B + AB ) is Correct Answer AB The formula A + B + C + D will yield true (1) if at least one of A,B,C,D is 1. The formula A./B.C will be true only if A = 1, B = 0 (so /B = 1) and C = 1. Boolean algebra knows two distributive laws with operations AND and OR.

Explanation:

Compared to CISC. RISC processors (at the same clock ) are Correct Answer slower RISC - based machines execute one instruction per clock cycle. CISC machines can have special instructions as well as instructions that take more than one cycle to execute. ... The CISC architecture can execute one, albeit more complex instruction, that does the same operations, all at once, directly upon memory.

Explanation:

The fraction of solar energy reflected from Earth into space is known as Correct Answer insolation Albedo is the fraction of solar energy (shortwave radiation) reflected from the Earth back into space. It is a measure of the reflectivity of the earth's surface. Ice, especially with snow on top of it, has a high albedo: most sunlight hitting the surface bounces back towards space. Insolation is the incident solar radiation onto some object. Specifically, it is a measure of the solar energy that is incident on a specified area over a set period of time. Generally, insolation is expressed in two ways.

Explanation:

which of the following is not a type of web search engine? Correct Answer Portal There are 3 commonly known types of search engines that have been identified during various research projects: navigational, informational and transactional. There are three types of Search engines: Crawler - based searches. Human - powered directories. Hybrid searches.

Explanation:

what is the value of variable x after the following statement is executed in JavaScript? Var x2-'3'+'4'; Correct Answer Undefined undefined is a property of the global object. That is, it is a variable in global scope. The initial value of undefined is the primitive value undefined. In modern browsers (JavaScript 1.8.5 / Firefox 4 + ), undefined is a non - configurable, non - writable property, per the ECMAScript 5 specification. (Even when this is not the case, avoid overriding it.) A variable that has not been assigned a value is of type undefined. A method or statement also returns undefined if the variable that is being evaluated does not have an assigned value. A function returns undefined if a value was not returned.

Explanation:

which of the following metals is known to pollute the air of big cities with a large number of vehicles? Correct Answer Lead Lead pollutes the air of a big city. Lead (Pb) is a metal found naturally in the environment as well as in manufactured products. The major sources of lead emissions have historically been from fuels in on - road motor vehicles (such as cars and trucks) and industrial sources.

Explanation:

In Java , which operator is used to create an object Correct Answer class In Java, you create an object by creating an instance of a class or, in other words, instantiating a class. To create a new object, use Java's new operator. Here's an example using the new operator to create a Rectangle object (Rectangle is a class in the java. awt package).

Explanation:

which from the following can cause a tsunami? Correct Answer Sergio Romero Tsunamis are caused by sudden movements of the earth that happens under the sea. Often the most destructive Tsunamis are caused by earthquakes but causes can also include volcanic eruptions, landslides or even a comet hitting the sea. Landslides cause tsunamis when the debris falls into the water.

Explanation:

The standard sea level in millibars is Correct Answer 1013 mb Standard sea - level pressure, by definition, equals 760 mm (29.92 inches) of mercury, 14.70 pounds per square inch, 1,013.25 × 103 dynes per square centimetre, 1,013.25 millibars, one standard atmosphere, or 101.325 kilopascals.

Explanation:

The official working languages recognized by the UNO are __ Correct Answer All of the above The current official and working languages of the United Nations are: Arabic. Chinese. English. French. Russian. Spanish.

Explanation:

which country won the first football world cup? Correct Answer Uruguay Argentina, Uruguay, the United States and Yugoslavia each won their respective groups to qualify for the semi - finals. In the final, hosts and pre - tournament favourites Uruguay defeated Argentina 4 – 2 in front of a crowd of 68,346 people, and became the first nation to win the World Cup.

Explanation:

The branch of science that studies cells is called _ Correct Answer cytology Entomology is the study of insects and their relationship to humans, the environment, and other organisms. Entomologists make great contributions to such diverse fields as agriculture, chemistry, biology, human/animal health, molecular science, criminology, and forensics.

Explanation:

Domain name to IP address mapping is done by_ Correct Answer DNS server Mapping a domain name to an IP Address is known as Name - Address Resolution. The Domain Name Server (DNS) Resolver performs this operation by consulting name servers. In order to find a particular DNS the requesting host place it's query to the Local DNS Server with a mapping request.

Explanation:

Distributed Queue Dual Bus is a standard for Correct Answer LAN & MAN Distributed - Queue Dual - Bus (DQDB) is a distributed multi - access network. provides access to Local Area Networks or Metropolitan Area Networks. supports connectionless data transfer, connection - oriented data transfer, and isochronous communications, such as voice communications.

Explanation:

which of the following will produce an answer that is closest in value to a double , d. while not being greater than d? Correct Answer (int)Math.Floor(d); Description The method floor gives the largest integer that is less than or equal to the argument. Syntax This method has the following variants − double floor(double d) double floor(float f) Parameters Here is the detail of parameters − A double or float primitive data type. Return Value This method returns the largest integer that is less than or equal to the argument. Returned as a double. Example Live Demo public class Test { public static void main(String args) { double d = - 100.675; float f = - 90; System.out.println(Math.floor(d)); System.out.println(Math.floor(f)); System.out.println(Math.ceil(d)); System.out.println(Math.ceil(f)); } } This will produce the following result − Output - 101.0 - 90.0 - 100.0 - 90.0

Explanation:

who was awarded the Golden Glove award for the best goalkeeper at the World Cup 2014? Correct Answer Manuel Neuer Thibaut Courtois has won the Golden Glove award for being the best goalkeeper at the 2018 World Cup

Explanation:

He has no good cause __ complaint. Darkness was the cause ___ his losing his way. Correct Answer for , of cause (noun) a person or thing that gives rise to an action, phenomenon, or condition. "The cause of the accident is not clear" Similar: source, root, origin, beginning(s), starting point, seed, germ, genesis, agency, occasion, mainspring, base, basis, foundation, bottom, seat, originator.

Explanation:

How many 'I's will be there in the binary representation of the following expression (assume 16 bit nubmber _ 12 + 64 + 128 + 256 + 1024 ) Correct Answer 6 In mathematics and digital electronics, a binary number is a number expressed in the base - 2 numeral system or binary numeral system, which uses only two symbols: typically “0” (zero) and “1” (one). The base - 2 numeral system is a positional notation with a radix of 2. Each digit is referred to as a bit.

Explanation:

The secientist who first discovered that the earth revolves round the sun was Correct Answer Copernicus Nicolaus Copernicus was a Polish astronomer who put forth the theory that the Sun is at rest near the center of the Universe, and that the Earth, spinning on its axis once daily, revolves annually around the Sun. This is called the heliocentric, or Sun - centered, system.

Explanation:

He agreed __ my proposal . He agreed ___ me on that question . They could not agree __ themselves. Correct Answer to , with , among agree on, agree to, agree with Agree on means to share the same opinion about items, topics or standards: All parties agreed on plans to expand the Rideau Centre. Agree to means to commit to (a course of action, a proposal, etc.): Ontario’s ruling Conservatives and opposition Liberals agreed to adopt new rules that allow the NDP to qualify for official party status. The manager agreed to the recommendation submitted by the working group. Agree with means to have the same opinion as another person or to approve of something. I agree with you that spaghetti sauce can never have too much garlic. I agreed with the approach Mike adopted. In addition, facts may agree with (correspond to) each other. Your data do not agree with our results.

Explanation:

synonym of 'Fastidious'? Correct Answer finicky finicky (adjective) (of a person) fussy about their needs or requirements. "a finicky eater" Similar: fussy, fastidious, punctilious, over - particular, hard to please, overcritical, difficult, awkward, exacting, demanding, perfectionist, pass - remarkable, picky, choosy, pernickety, pernickety, nice, showing or requiring great attention to detail. "His finicky copperplate hand".

Explanation:

Antonym of 'Myopia' Correct Answer Farsighted Antonyms for (noun) myopia Main entry: myopia, nearsightedness, shortsightedness. Definition: (ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred. Antonyms: longsightedness, farsightedness, hypermetropia, hypermetropy, hyperopia.

Explanation:

Which is the biggest literary award of Britain? Correct Answer David Cohen Award David Cohen Award is the biggest literary award of Britain. The David Cohen Prize has established itself as the greatest honour a British or Irish writer can receive within these islands.

Explanation:

A and B together can complete a piece of work in 12 days, B and C can do it in 20 days and C and A can do it in 15 days. A , B and C together can complete it in. Correct Answer 10 days A & B can do in 1 day = 1/12 work B & C can do in 1 day = 1/20 work C & A can do in 1 day = 1/15 work 2(A&B&C) can do in 1 day = 1/12 + 1/20 + 1/15 = 12/60 = 1/5 work. A&B&C can do in 1 day = 1/(5 × 2) = 1/10 work. Required number of days = 1/(1/10) = 10 days. Ans: D

Explanation:

A computer can perform 30 identical tasks in 6 hour. At that rate, what is the minimum number of computers that should be assigned to complete 80 of the tasks within 3 hours ? Correct Answer 6 Number of computers = (80 × 6/30 × 3) = 5.33 = minimum 6 . Ans: C

Explanation:

There are 15 boys and 10 girls in a class. If three students are selected at random , what is the probability that 1 girl and 2 boys are selected? Correct Answer 2146 1 girl & 2 boys can be selected in = (10C1) × (15C2) ways = 10 × 105 ways = 1050 ways. 3 students can be selected from 25 students = 25C3 = 2300 ways Required probability = 1050/2300 = 21/46. Ans: C

Explanation:

which of the following countries is planning to create a Space Force by 2020 ? Correct Answer United States The National Defense Authorization Act for 2020 redesignated Air Force Space Command as the U.S. Space Force and established it as an independent branch of the U.S. Armed Forces on 20 December 2019. In terms of personnel count, it is the smallest U.S. armed service within the U.S. Department of Defense.

Explanation:

Translate into English : চুন খেয়ে গাল পোড়ে, দই দেখলে ভয় করে । সঠিক উত্তর A scalded dog fears cold water. চুন খেয়ে গাল পোড়ে, দই দেখলে ভয় করে নেড়ে বেলতলা একবারই যায় । A scalded dog fears cold water. A burnt child dreads the fire; experience teaches has caution.

Explanation:

It is not eas for a country with high fiscal deficits, high inflation, _____ banks and one that is __ to macro panics to completely open up its capital account . Correct Answer weak , prone Weak & prone both are adjective. In the question, "banks" is a Noun. Before it, adjective (weak) is appropriate according to meaning.

Explanation:

Name the singer who was 18-time Grammy Award winner , passed away recently. Correct Answer Aretha Franklin Franklin received numerous honors throughout her career. She was awarded the National Medal of Arts and the Presidential Medal of Freedom. In 1987, she became the first female performer to be inducted into the Rock and Roll Hall of Fame. She also was inducted into the UK Music Hall of Fame in 2005 and into the Gospel Music Hall of Fame in 2012.[7] In 2010, Rolling Stone magazine ranked her number one on its list of the "100 Greatest Singers of All Time"[8] and number nine on its list of "100 Greatest Artists of All Time".[9] The Pulitzer Prize jury in 2019 awarded Franklin a posthumous special citation "for her indelible contribution to American music and culture for more than five decades."

Explanation:

The timely rain ___ good crops . Correct Answer brings forth bring forth - (synonym) to give birth to; deliver; bear: to bring forth a son. to give rise to; introduce: to bring forth a proposal for reducing costs.

Explanation:

The ____ to e-buses would not lower the level of emissions but merely ___ their place of origin . Correct Answer transition, change The ____ to e - buses would not lower the level of emissions but merely ___ their place of origin. After 'the', Noun (transition) is used. After 'would', the present form of verb (change) is used.

Explanation:

The trade deficit has been growing rapidly, and the capital inflows __ to fund it could get disrupted in case US monetary policy gets tightened __ than expected. Correct Answer Needed , More The trade deficit has been growing rapidly, and the capital inflows __ to fund it could get disrupted in case US monetary policy gets tightened __ than expected. 'Needed' has been used as a participle. 'More' has been used as a comparative form.

Explanation:

'In spite of all his brag he had to eat humble pie. choose the correct meaning of the idiom to eat humble pie. Correct Answer To yield humiliating circumstances phrase. If you eat humble pie, you speak or behave in a way which tells people that you admit you were wrong about something. Anson was forced to eat humble pie and publicly apologise to her.

Explanation:

The civilian Airport of highest altitude is in __ Correct Answer China Daocheng Yading Airport in southwest China's Sichuan Province is the world's highest - altitude civilian airport. It is located at a height of 4,411 meters above sea level.