Meo Mean oy x b hoes beat e) hackerrank.co...
Ukg technical mcq question, verified with a worked answer. Free to practise - no sign-up.
Meo Mean | oy x |b hoes beat e) hackerrank.co... @a @Q | yy BG Gat EB YouTube) Mops UKG College Hire Assessment English & Mukesh Singh + Answered: 6/20 17. Question 17 ALL == Which expression is not correct? = [ = Leas == E 12 = MySQI joins are used to join rows from two or more tables based — "onthe associated column between them. | 13 Peal ae pa iy ailese 7s, The INNER JOIN keyword selects records that have matching values i _— “in both tables. = = - aR SC lB a : ——— 4 a al fell Th se .: |) Aself-join is just a normal join, but the table joins itself. Using the RIGHT JOIN’ keyword returns only records that are joined | 16 in the right way. { | 18. Question 18. --- [PAGE/IMAGE BREAK] --- a x Se) hackerrankco.. ©» Q wy fF | @ F D Ws BD acre aerssit (5 At toctmarks UK GRE English 2, MukestSingh « OSmin G Answered: 4620 10. Question 10 51, 18, 36]. The array nt as the pivot eleme! rat is the index of the pivot element if indexing st --- [PAGE/IMAGE BREAK] --- > Mokesh, Picco | [J x € 3 C¢ %8 hackerrank.co... Go Q + Vm) a BA Smet EB voutuve GY aps QD Adore Acrobat CO At tootmarts UG ‘UKG College Hire Assessment English &, Mukesh Singh + OQssmins G Answered: 5/20 ° The average time required to perform a successful sequential search for an element in an array A containing n elements is given by 10 Pick ONE option logon 42 a n(n+4y/2 --- [PAGE/IMAGE BREAK] --- 3) Mukesh, PAL UKG coi Me x + o x har alae tata ed hackerrank.co.. Ga Q 4%) |) Sip) | Co 3 MM ora) HM Youtube Mops Adobe Actobat CS Aiizcokmarks UKG College Hire Assessment English 2, Mukesh Singh + @samins G Answered: 6 / 20 16. Question 16 9 The SQL statement 2 _ SELECT ROUND (45.926, -2) FROM DUAL; = = Pick ONE option = = is illegal i prints garbage G = ©) prints 45.92 - 76 ©) prints o Q Search --- [PAGE/IMAGE BREAK] --- ee | of. a o> 4 sé hackerrank.co... @a Qi oe | a ; BMV Siro EM Youtube sap Adobe Acrobat | Le ES ai eeotinane CETKYE] ux cottege ire assessment English 2, Mukesh Singh Os5mins G Answered: 5/20 Given two integers A and B, convert A to B using the minimum Amber of Operations, The operations allowed are: ALL 1. Subtract 1 from the current value of A. 2. Multiply the current value of A by 2. = For each of these samples, determine the minimum number of Operations = required, Select the matching list from the answers below. Sample 01:A= Sample 02-A= 40 Sample 032A = Sample 04=A= 2 , 1 f 1 B B B= 00, B = 500 1 is} 2, 1 Pick ONE option is 7 ©) .1,9, 8, 400 q 13 Ea, ] 1,8, 6, 400 | 14) rf) | | i ©) 1,8,6, 40 15 fh! i Wi) i ey 1, 8 5) 41 --- [PAGE/IMAGE BREAK] --- Pe Une cov fi. <x Be Se ila hackerrank.co... @a @Q) PA Gat EB voutase |) stops Adore Aerovat iWKG UKG College Hire Assessment English 2, Mukesh Singh + O©56mins G Answered: 2/20 6. Question 6 What will be the value of x after the éxecution of the following code: int-x =1; for_Cint +="1; x - A) Adobe Acrobat (2) Al bookmarks - B) Pick ONE option - C) 13. Question 13
Show answer & explanation
In SQL, a RIGHT JOIN (or RIGHT OUTER JOIN) returns all records from the right table and the matched records from the left table. The phrase 'joined in the right way' is a semantic nonsense description and does not describe the actual technical functionality of the JOIN operation.
Step-by-step Derivation:
Step 1: Analyze Option A: 'MySQL joins are used to join rows from two or more tables based on the associated column between them.' This is a correct definition of a join.
Step 2: Analyze Option B: 'The INNER JOIN keyword selects records that have matching values in both tables.' This is the correct definition of an INNER JOIN.
Step 3: Analyze Option C: 'A self-join is just a normal join, but the table joins itself.' This is a correct description of a self-join.
Step 4: Analyze Option D: 'Using the RIGHT JOIN keyword returns only records that are joined in the right way.' This is technically incorrect. A RIGHT JOIN returns all records from the right table regardless of whether there is a match in the left table; it has nothing to do with the 'way' they are joined, but rather the source of the records.