网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

Telneting from any machine on the network is taking 75 seconds.  Which of the following procedures should be checked to correct the error?()

  • A、 Check  /etc/hosts. 
  • B、 Check  /etc/resolv.conf. 
  • C、 Check for packet errors. 
  • D、 Check to see if the master server is up.

参考答案

更多 “Telneting from any machine on the network is taking 75 seconds.  Which of the following procedures should be checked to correct the error?()A、 Check  /etc/hosts. B、 Check  /etc/resolv.conf. C、 Check for packet errors. D、 Check to see if the master server is up.” 相关考题
考题 The DMZ extends about two hundred kilometers (). A.from east to westB.from the east to westC.from the east to the westD.from eastern to western

考题 Examine the data in the EMPLOYEES table:Which three subqueries work? () A. SELECT * FROM employees where salary (SELECT MIN(salary) FROM employees GROUP BY department _ id);B. SELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department _ id);C. SELECT distinct department_id FROM employees Where salary ANY (SELECT AVG(salary) FROM employees GROUP BY department _ id);D. SELECT department_id FROM employees WHERE SALARY ALL (SELECT AVG(salary) FROM employees GROUP BY department _ id);E. SELECT last_name FROM employees Where salary ANY (SELECT MAX(salary) FROM employees GROUP BY department _ id);F. SELECT department_id FROM employees WHERE salary ALL (SELECT AVG(salary) FROM employees GROUP BY ANG (SALARY));

考题 与“SELECT*FROM教师表INTO DBF A”等价的语句是A.SELECT*FROM教师表TO DBF AB.SELECT*FROM教师表TO TABLE AC.SELECT*FROM教师表INTO TABLE AD.SELECT*FROM教师表INTO A

考题 What is a vaild match criteria for a firewall filter?() A.from protocol tcpB.from urlC.from communityD.from acl

考题 6.—______?—I’m from Beijing.A. Are you from BeijingB. Do you come from BeijingC. Where are you fromD. When are you from

考题 ( 30 )与 “ SELECT * FROM 教师表 INTO DBF A ” 等价的语句是A ) SELECT * FROM 教师表 TO DBF AB ) SELECT * FROM 教师表 TO TABLE AC ) SELECT * FROM 教师表 INTO TABLE AD ) SELECT * FROM 教师表 INTO A

考题 Where did the noise come from? __________A.From the small house B.From Mrs.Janes C.From the tyres D.From the engine

考题 class A {  public A() {  System.out.println(“hello from a”);  }  }  class B extends A {  public B () {  System.out.println(“hello from b”);  super();  }  }  public class Test {  public static void main(String args[]) {  A a = new B();  }  }   What is the result when main is executed?()  A、 Compilation fails.B、 hello from aC、 hello from bD、 hello from b hello from aE、 hello from a hello from b

考题 What is a vaild match criteria for a firewall filter?()A、from protocol tcpB、from urlC、from communityD、from acl

考题 下面哪条语句可以取出薪水最高的前三个人:()A、SELECT * FROM (SELECT * FROM EMPLOYEES ORDER BY SALARY );B、SELECT * FROM (SELECT * FROM EMPLOYEES ORDER BY SALARY ) WHERE ROWNUM=3;C、SELECT * FROM (SELECT * FROM EMPLOYEES ORDER BY SALARY DESC) WHERE ROWNUM=3;D、SELECT * FROM EMPLOYEES WHERE ROWNUM=3 ORDER BY SALARY DESC;

考题 下列命令不能执行的是()。A、SELECT * FROM [select]B、SELECT * FROM @MyTableC、SELECT * FROM [MyTable]D、SELECT * FROM MyTable

考题 Reverse distribution is the part of ()A、From sellers to buyersB、From buyers to sellersC、From outside to inside of any companyD、From wholesalers to retailers

考题 Returned logistics is the goods flow()A、From sellers to buyersB、From buyers to sellersC、From outside to inside of any companyD、From wholesalers to retailers

考题 Which of the following will DELETE all of the rows from table T03?()A、DELETE * FROM TABLE T03B、DELETE ALL FROM T03C、DELETE * FROM T03D、DELETE FROM T03

考题 Which of the following statements allows BOB to revoke access to the SAMPLE database from user TOM?()A、REVOKE ACCESS ON DATABASE FROM USER bobB、REVOKE CONNECT ON DATABASE FROM USER tomC、REVOKE tom FROM ACCESS ON DATABASE BY USER bobD、REVOKE tom FROM CONNECT ON DATABASE BY USER bob

考题 Which of the following statements is used to revoke all DML privileges on table EMPLOYEE from user TOM?()A、REVOKE ALL PRIVILEGES FROM USER tomB、REVOKE ALL ON EMPLOYEE FROM USER tomC、REVOKE EXECUTE ON EMPLOYEE FROM USER tomD、REVOKE PRIVILEGES ON EMPLOYEE FROM USER tom

考题 多选题Examine the data in the EMPLOYEES table: Which three subqueries work? ()ASELECT * FROM employees where salary (SELECT MIN(salary) FROM employees GROUP BY department _ id);BSELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department _ id);CSELECT distinct department_id FROM employees Where salary ANY (SELECT AVG(salary) FROM employees GROUP BY department _ id);DSELECT department_id FROM employees WHERE SALARY ALL (SELECT AVG(salary) FROM employees GROUP BY department _ id);ESELECT last_name FROM employees Where salary ANY (SELECT MAX(salary) FROM employees GROUP BY department _ id);FSELECT department_id FROM employees WHERE salary ALL (SELECT AVG(salary) FROM employees GROUP BY ANG (SALARY));

考题 单选题Backstays are().A running rigging leading aft from the mastsB running rigging leading forward from the mastsC standing rigging leading aft from the mastsD standing rigging from the cross trees to the mast head

考题 单选题class A {  public A() {  System.out.println(“hello from a”);  }  }  class B extends A {  public B () {  System.out.println(“hello from b”);  super();  }  }  public class Test {  public static void main(String args[]) {  A a = new B();  }  }   What is the result when main is executed?()A  Compilation fails.B  hello from aC  hello from bD  hello from b hello from aE  hello from a hello from b

考题 单选题若包装箱上标示下图标志是指()。A keep away from moistureB keep away from heatC keep away from coldD keep away from fire

考题 单选题An administrator has a legacy cluster running version 4.5/ES and would like to update to version 5.5.Which of the following is a valid upgrade path?()A 1. Upgrade from 4.5 to 5.12. Upgrade from 5.1 to 5.5B 1. Upgrade from 4.5 to 5.22. Upgrade from 5.2 to 5.5C 1. Upgrade from 4.5 to 5.32. Upgrade from 5.3 to 5.5D 1. Upgrade from 4.5 to 5.4.12. Upgrade from 5.4.1 to 5.5

考题 单选题下列命令不能执行的是()。A SELECT * FROM [select]B SELECT * FROM @MyTableC SELECT * FROM [MyTable]D SELECT * FROM MyTable

考题 单选题Backstaysare()。A running rigging leading aft from the mastsB running rigging leading forward from the mastsC standing rigging leading aft from the mastsD standing rigging from the trees to the mast head

考题 单选题Telneting from any machine on the network is taking 75 seconds.  Which of the following procedures should be checked to correct the error?()A  Check  /etc/hosts. B  Check  /etc/resolv.conf. C  Check for packet errors. D  Check to see if the master server is up.

考题 单选题What is the principal danger from the liquid in a half full tank onboard a vessel?()A Corrosion from the shifting liquidB Rupturing of bulkheads from the shifting liquidC Loss of stability from free surface effectD Holing of the tank bottom from the weight of the shifting liquid

考题 单选题Which SELECT statement will the result ‘ello World’ from the string ‘Hello World’?()A SELECT SUBSTR( ‘Hello World’,1) FROM dual;B SELECT INITCAP(TRIM (‘Hello World’, 1,1)) FROM dual;C SELECT LOWER(SUBSTR(‘Hello World’, 1, 1) FROM dual;D SELECT LOWER(SUBSTR(‘Hello World’, 2, 1) FROM dual;E SELECT LOWER(TRIM (‘H’ FROM ‘Hello World’)) FROM dual;

考题 单选题与“SELECT * FROM学生INTO DBF A”等价的语句是(  )。A SELECT * FROM学生INTO AB SELECT * FROM学生INTO TABLE AC SELECT * FROM学生TO TABLE AD SELECT * FROM学生TO DBF A