The software designer examination is about to begin the day after tomorrow. Based on my experience in reviewing and analyzing real questions over the years, I would like to share my experiences and experiences in the afternoon.
Looking at the real questions from to 11 years, it is not difficult to find that the exam focuses more and more on concepts and basic s
number and find the average score for each group of passing persons (grade >= 60) (average number of passing persons per course)3. Ask for an average of all courses for each student4. The average score for each student (exam result) Pass Course5. Average score for each student in each internal test (average of each course per learner)6. Check the average score of the students who have done the exam (find o
where E1.mgr =E2.empno (+);Find two jobs with the highest average wage, grouped by positionSELECT * FROM (select AVG (SAL) from emp order BY job desc) where rownumselect= "D.dname=" "from=" "emp=" "dept=" "d=" "where=" "and=" "E.sal=" "> (selectMax (SAL) fromEMP where deptno=20) and E.deptno=d.deptnoJob categories with average wage greater than 20002018/5/31 Oracle Database interview Written questions summaryHttp://www.yjbys.com/qiuzhizhinan/show-308
zcvf/backup/etc-$ (date +%f). tar.gz/etc/1.10Add a virtual userMysqlSpecifyUidto be888Useradd-u 888-s/bin/nologin MySQL1.11Write timed Tasks,every night12Click Delete/var/spool/postfix/maildrop/directory under7days before the file. Script Name: rmmaildrop.sh script content:/bin/rm $ (find/var/spool/postfix/maildrop/-type f-mtime +7)Scheduled Tasks: XX * * */bin/sh rmmaildrop.sh>>/dev/null 2>11.12to bealex888User ConfigurationSudopermissions that require you to run all life without having to ent
Question 1:Please put the following stringstu494e222fstu495Bedf3stu49692236stu49749b91Switch to the following form:stu494=e222fStu495=bedf3stu496=92236Stu497=49b91Question 2:Echo I am Oldboy training, please put the output of each character to the order, repeat the number of rows to the front.This article is from the "Old Boys Linux Training" blog, make sure to keep this source http://oldboy.blog.51cto.com/2561410/1855453Two Linux OPS Basics command exam
activity C, two options are not correct D, two options are correct
How to deliver a message to a running service ()
A, by registering receiver B, through intent C, by defining the Aidl interface D, are correct
When a video or audio is playing, will the video or audio automatically hang when a call is reached? ()
A, will not B, will C. Some hand opportunities, some mobile phone will not D. All the above is wrong
How to support language internationalizati
packaging tools and write the corresponding compression decompression parameters. 5, how to check whether to open 22 port, and see if the sshd process exists? 6, the modification time under the/data directory is 7 days ago, and files larger than 100k are copied to the/tmp directory. 7, find out the system more than 50k and less than 100k of the file, the file Oldboy replaced with Oldgirl. 8, now the file B.txt all 123 to replace the Def, how can I achieve? 9, write out the Redhat, configure the
the execution has completed.Input Sample:3 31 1 1 2 0 1 2 1-1-11Sample output:7time limit: 500ms memory limit: 32000kb Import Java.util.scanner;public class Cellmachine {static Scanner in = new Scanner (system.in); static int width = 0;//width st atic int height = 0;//height static int[][] field_old;//old grid static int[][] field_new;//new mesh static int times;//steps Public stat IC void Main (string[] args) {//First enter two positive integers with a range of [3,102], which in turn represent
Possible iOS written exam questions (4)--c language may be encountered in the iOS written test face questions (4)--c languageC language, the basic foundation of development, iOS many advanced applications have to deal with C language, so, C language in the development of iOS importance, you understand. Some of these problems may not be a C language problem, but b
################################################################This article extracts from the old boy Linux practical operation and maintenance Training Center before the exam question (answer part)If reproduced, please be sure to keep the link and copyright information herein.Welcome to Yun-Brother together to Exchange Linux/unix website operation and Maintenance technology!Website operation and Maintenance Exchange Group: 114580181 45039636 3708178
differences between soft links and hard links under Linux. (2 minutes)3.linux the difference between single and double or no quotes in the shell (2 minutes)4.linux Run Level 0-6 (1 minutes in memory)5. Describe the principle of file deletion under Linux (3 minutes)[Technical skills written test questions]DescriptionPlease give the relevant command answer to the question, write to the bottom of the problem (if it is not can Baidu search, write the ans
[Classic Interview Questions] Statistical array, classic exam statistical Array[Question]
Given array A, the size is n, and the array element is A number ranging from 1 to n. However, some numbers appear multiple times, while some do not. Provide algorithms and programs to calculate which numbers do not appear and which ones appear for how many times. Can it be completed with O (n) time complexity and O (1)
; } public String GetClassID () {return classID; } public void Setclassid (String classID) {this.classid=classid; }}Complement:Studentpxgit log:Programming problem Code Hosting(Results of program operation)(1) Use the stack structure to output several items of an, where an=2an-1+2an-2,a1=3,a2=8(2) write a program to store student English scores in a list in a tree set so that they are automatically sorted by program and output sorted results(3) There are 10 USB drives, there are two import
scrolling position are:Answer: (A)
A, Contentoffset
B, Contentsize
C, Contentinset
D, Scrollindicatorinsets
※ Judgment question (total 5 questions, 3 points per question)
1, UISlider, Uiswitch, Uitextfield These classes are inherited from the Uicontrol class.Answer: (T)
That's right
Error
2, [Segmentedcontrol Titleforsegmentatindex:] Indicates the option to specify indexed text.Answer: (
. Find/oldboy-type f-name "*.log"-size +1m |xargs cp-t/tmpCP $ (Find/oldboy-type f-name "*.log"-size +1m)/oldboy1.11 What is the operating level of Linux, describe the meaning of different numbers of Linux running levels? (Additional questions)0 turn off the machine1 Single-user mode2 Multi-user mode (no NFS)3 full Multi-user mode4 not used5 Graphical Interface6 Restart1.12 Please describe the difference between buffer and cache ( additional
letter I in the string; intn =0; for(intA =0; A if(' I '= = Str[a]) {n++; }} System. out. println ("(2) The number of occurrences of the letter I in the string:"+ N); System. out. println ("\ n");//(3) Remove substring "my";System. out. println ("(3) Remove substring" my "); System. out. println (S1.substring (S1.indexof ("My"), S1.indexof ("My") +"My". Length ())); System. out. println ("\ n");//(4) converts this string into an array of strings, requiring each array eleme
positive $a$ makes the $ $f (x) +a\int_{x-1}^x F (t) dt$$ a constant. Verify: $f (x) $ must be constant.Five, (15 points) set $f (x, y) $ on the $x^2+y^2\leq 1$ has a continuous second derivative, $f _{xx}^2+2f_{xy}^2+f_{yy}^2\leq m$. If $f (0,0) =0,f_x (0,0) =f_y (0,0) = 0$, proving $$\left |\iint_{x^2+y^2\leq 1}f (x, y) dxdy\right |\leq. $$Six, (15 points) known \[a=\left ({\begin{array}{*{20}{c}}{-\frac{{\sqrt 3}}{2}}{-\frac{1}{2}}\\{\frac{1}{2}}{-\ Frac{{\sqrt 3}}{2}}\end{array}} \right), \
The first 100 series to conquer the fortress completed the change work.Two books, "Conquer Fortress Hundred Questions series system integration project management engineer Pre-Test Sprint 100 Second Edition""Conquer Fortress Hundred Questions series Information System Project management Division pre-Test Sprint 100 Questions"Among them, the intermediate series of
Six, Procedural Questions 1. Write a complex number class (operator overloading) #include 2. Write a string class--Go #include 3.swap function #include 4. Bubble function #include January 5, 2015 XX University xx College Exam questions
2018 US group comments spring C ++ exam programming questions, 2018 US dollars
Comments from the US Mission: 2018 online examination for the development direction of the spring recruitment background
Programming question | 30.0 points 1/2
String distance
Time limit:The C/C ++ language is 2000 MS; other languages are 4000 MS.Memory limit:C/C ++ language 65536KB; other languages 589213kb
Description:
Two s
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