itil foundation test questions

203.81.19.1Host/dig/nslookup checking Domain name resolutiond Internet Router (configuration and hardware) and ISP line issuesLog in to the router, check the superior line, call the ISP technology.e-Troubleshooting: IP address Conflicts, other people can surf the Internet, IP address conflict, ARP virus, core switch is broken,Switch loops (see logs)(b) Large area on the net:Router, ISP, core switch, ARP virus, core switch broken, gateway address occupied, switch loop2. How do I troubleshoot a s

,main.invoke (NULL, "ABC")D,main.invoke (null, (Object) (New string[]{"abc"})examine the Knowledge point : The Foundation strengthens the reflection A static method called in a class (Test) by Reflection Show () the correct is ()Method show = ... .. ; (Difficulty C )A,show.invoke (null);B,show.invoke (Test)C,Show.invoke (Test.class.newInstance ())D, the above a

(BookName) is the "Java" record, the following code is correct (aString sql= "Delete from book where bookname=?";PreparedStatement pst=con.preparedstatement (SQL);______________________________Pst.execute ();A) pst.setstring (1, "Java");B) pst.setstring (0, "Java");C) pst.setint (0, "Java");D) The above options are not correct47. Get the first line of data for the Resutlset object RST, the following is correct (B)A) Rst.hashnext ();B) Rst.next ();C) Rst.first ();D) Rst.nextrow ();48. The follow

type at compile time is determined by the type used when declaring the variable , and the type of the runtime is determined by the object that is actually assigned to the variable. If the compile-time type differs from the run-time type, polymorphism occurs. (2)inheritance is a precondition for polymorphic generation . (1)The mechanism for implementing polymorphism: The reference variable of the parent class can point to the instance object of the subclass, and the method called by the progra

to Wangwei"$ Java-jar Blockchain-java-jar-with-dependencies.jar-add "Send 3.5 BTC to Wangwei"Print Blockchain$ Java-jar Blockchain-java-jar-with-dependencies.jar-printSummarizeIn this article we implement the Blockchain storage function, next we will implement the address, transaction, wallet, some of the functions of the column.Recommend a Java in-house learning Group: 725633148, the group to find management free to receive learning materials and videos. Nothing wrong is free to collect! Big m

Software Test interview questions (partial collection) 01. Why should I perform software testing in a team? Because it is difficult for a software without tests to know the quality of the software before release, just like ISO quality certification, testing also requires quality assurance, in this case, you need to perform software testing in the team. Discover problems in the software during the testing pr

Temperature Expression Conversion give $f$, $c=\dfrac{5}{9} (F-32) $,. #include using namespace Std; int Main () { double F,c; scanf ( %lf , f); C =5 * (F-32 )/9 ; printf ( %.5f\n " ,c); return 0 ;} 08.cpp 09 calculations related to the circleGive $r$, Beg $c=2\pi R $ and $s=\pi r^2$. #include #define PI 3.14159 namespace Std; int Main () { double R; scanf ( %lf , r); printf ( %.4f%.4f%.4f\n ", 2 *r,2 *pi*r,pi*r*R); return 0 ;} 09.cpp

(intint) {}}; class Public A {public: void fun1 (intint) ()};Note: In the overriding method, the calling method body is determined by the type of the object, and the overloaded relationship selects the method body based on the argument table and formal parameter list at the time of invocation.8.3.3 HiddenHiding means that in a special case, a function in a derived class masks a function of the same name in the base class, including:1) Two function parameters are the same, but the base class

　　As the first Dark Horse technical blog It is necessary to explain the background. The personal understanding of the blog is to be used in communication, in his study, in the exchange of learning to grow together. Let's get down to the chase. This article is mainly to introduce the black horse in the introduction of testing some of the problems (this should not leak the question bank).First analysis of 10 sets of questions, mostly is the basic knowle

objects of this class are used in a multithreaded environment, it is best to use StringBuffer. 39. How do I convert a comma-delimited string into an array? Reference: (1) with regular expressions, the code is roughly: ' string[] result = Orgstr.split (","); ' (2) with StringTokenizer, code:StringTokenizer Tokener = StringTokenizer (Orgstr, ",");String[] result = new String[tokener.counttokens ()];int i = 0;while (Tokener.hasnext ()) {result[i++] = Tokener.nexttoken ();}40. 数组有没有length()方法？Strin

PHP entry-level coder self-test questions Description: This test is 100 points, involving the Web (PHP direction) of the comprehensive knowledge, 90 pass. By:pig 2009.07.14 This question has been sent once, now tidy up, re-sent up. ------------------------------------- One, basic PHP1. Try to explain the difference between Echo and Print,require and include. (3

Common SQL Server test questions (1) Question 1 Problem description: create three tables for managing job business training information: S (s #, Sn, SD, SA) s #, Sn, SD, SA stands for student ID, Student name, organization, student age C (C #, CN) C #, CN stands for course number, course name SC (s #, CN respectively #, C #, g) s #, C #, and g respectively represent the student ID, the number of the electiv