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 

题目

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.
相似考题

1.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

2.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

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

4.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));

更多“Telneting from any&#”相关问题

  • 第1题：

    6．—______?

    —I’m from Beijing．

    A． Are you from Beijing

    B． Do you come from Beijing

    C． Where are you from

    D． When are you from


    正确答案：C
    6.C【解析】由答语可以看出应是个特殊疑问句，你从哪里来？

  • 第2题：

    Where did the noise come from? __________

    A.From the small house
    B.From Mrs．Janes
    C.From the tyres
    D.From the engine

    答案：B
    解析：
    第二段“She Was singing some of her highest and most difficult tones at that time and as thecar passed”．可推知司机昕到的声音是Mrs．Janes练高音符发出的声音。故答案为B。

  • 第3题：

    What is a vaild match criteria for a firewall filter?（）

    • A、from protocol tcp
    • B、from url
    • C、from community
    • D、from acl

    正确答案:A

  • 第4题：

    下列命令不能执行的是（）。

    • A、SELECT * FROM [select]
    • B、SELECT * FROM @MyTable
    • C、SELECT * FROM [MyTable]
    • D、SELECT * FROM MyTable

    正确答案:B

  • 第5题：

    Returned logistics is the goods flow（）

    • A、From sellers to buyers
    • B、From buyers to sellers
    • C、From outside to inside of any company
    • D、From wholesalers to retailers

    正确答案:B

  • 第6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 bob
    • B、REVOKE CONNECT ON DATABASE FROM USER tom
    • C、REVOKE tom FROM ACCESS ON DATABASE BY USER bob
    • D、REVOKE tom FROM CONNECT ON DATABASE BY USER bob

    正确答案:B

  • 第7题：

    多选题
    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));


    正确答案： D,E
    解析： 暂无解析

  • 第8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 a

    C

     hello from b

    D

     hello from b hello from a

    E

     hello from a hello from b


    正确答案： B
    解析： Call to super must be first statement in constructor. 

  • 第9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 5.5

    B

    1. Upgrade from 4.5 to 5.22. Upgrade from 5.2 to 5.5

    C

    1. Upgrade from 4.5 to 5.32. Upgrade from 5.3 to 5.5

    D

    1. Upgrade from 4.5 to 5.4.12. Upgrade from 5.4.1 to 5.5


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Backstaysare（）。
    A

    running rigging leading aft from the masts

    B

    running rigging leading forward from the masts

    C

    standing rigging leading aft from the masts

    D

    standing rigging from the trees to the mast head


    正确答案： B
    解析： “Backstays are standing rigging leading aft from the masts。”意为后支索是固定静索自桅杆后部固定。

  • 第11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 liquid

    B

    Rupturing of bulkheads from the shifting liquid

    C

    Loss of stability from free surface effect

    D

    Holing of the tank bottom from the weight of the shifting liquid


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    与“SELECT * FROM学生INTO DBF A”等价的语句是（　　）。
    A

    SELECT * FROM学生INTO A

    B

    SELECT * FROM学生INTO TABLE A

    C

    SELECT * FROM学生TO TABLE A

    D

    SELECT * FROM学生TO DBF A


    正确答案： B
    解析：
    在SQL查询语句的尾部添加[INTO DBF | TABLE<表名>]可以将查询的结果放入新生成的指定表中。INTO TABLE A等价于INTO DBF A。

  • 第13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 A

    B ） SELECT * FROM 教师表 TO TABLE A

    C ） SELECT * FROM 教师表 INTO TABLE A

    D ） SELECT * FROM 教师表 INTO A


    正确答案：C

  • 第14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 a
    • C、 hello from b
    • D、 hello from b hello from a
    • E、 hello from a hello from b

    正确答案:A

  • 第15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；

    正确答案:C

  • 第16题：

    Reverse distribution is the part of （）

    • A、From sellers to buyers
    • B、From buyers to sellers
    • C、From outside to inside of any company
    • D、From wholesalers to retailers

    正确答案:B

  • 第17题：

    Which of the following will DELETE all of the rows from table T03?（）

    • A、DELETE * FROM TABLE T03
    • B、DELETE ALL FROM T03
    • C、DELETE * FROM T03
    • D、DELETE FROM T03

    正确答案:D

  • 第18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 tom
    • B、REVOKE ALL ON EMPLOYEE FROM USER tom
    • C、REVOKE EXECUTE ON EMPLOYEE FROM USER tom
    • D、REVOKE PRIVILEGES ON EMPLOYEE FROM USER tom

    正确答案:B

  • 第19题：

    单选题
    Backstays are（）.
    A

    running rigging leading aft from the masts

    B

    running rigging leading forward from the masts

    C

    standing rigging leading aft from the masts

    D

    standing rigging from the cross trees to the mast head


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    若包装箱上标示下图标志是指（）。
    A

    keep away from moisture

    B

    keep away from heat

    C

    keep away from cold

    D

    keep away from fire


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    下列命令不能执行的是（）。
    A

    SELECT * FROM [select]

    B

    SELECT * FROM @MyTable

    C

    SELECT * FROM [MyTable]

    D

    SELECT * FROM MyTable


    正确答案： D
    解析： 暂无解析

  • 第22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.


    正确答案： B
    解析： 暂无解析

  • 第23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;


    正确答案： B
    解析： 暂无解析

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