多选题Which three logical expressions evaluate to true?()A(a = = c)B(d = = c)C(b = = d)D(a = = b)E(b = = c)F(d == 10.0)

题目
多选题
Which three logical expressions evaluate to true?()
A

(a = = c)

B

(d = = c)

C

(b = = d)

D

(a = = b)

E

(b = = c)

F

(d == 10.0)


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  • 第1题:

    Which expressions will evaluate to true if preceded by the following code?()   String a = "hello";   String b = new String(a);   String c = a;   char[] d = { ’h’, ’e’, ’l’, ’l’, ’o’ };  

    • A、(a == "Hello")
    • B、(a == b)
    • C、(a == c)
    • D、a.equals(b)
    • E、a.equals(d)

    正确答案:C,D

  • 第2题:

    Given: 11.<% java.util.Map map = new java.util.HashMap(); 12.request.setAttribute("map", map); 13.map.put("a", "b"); 14.map.put("b", "c"); 15.map.put("c", "d"); %> 16.<%-- insert code here --%> Which three EL expressions, inserted at line 16, are valid and evaluate to "d"?()

    • A、${map.c}
    • B、${map[c]}
    • C、${map["c"]}
    • D、${map.map.b}
    • E、${map[map.b]}

    正确答案:A,C,E

  • 第3题:

    public static void main( String[] args ) {  Integer a = new Integer(10);  Integer b = new Integer(10);  Integer c = a;  int d = 10;  double e = 10.0;  }   Which three evaluate to true?()   

    • A、 (a == c)
    • B、 (d == e)
    • C、 (b == d)
    • D、 (a == b)
    • E、 (b == c)
    • F、 (d == 10.0)

    正确答案:A,B,F

  • 第4题:

    Given a web application in which the request parameter product ID contains a product identifier.Which two EL expressions evaluate the value of the product ID?()

    • A、 ${product ID}
    • B、 ${param.productID}
    • C、 ${params.productID}
    • D、 ${params.productID[1]}
    • E、 ${paramvalues.productID}
    • F、 ${paramValues.productID[0]}
    • G、 ${pageContext.request.productID}

    正确答案:B,F

  • 第5题:

    public class Foo {  private int val;  public foo(int v) (val = v;)  }  public static void main (String [] args)  {  Foo a = new Foo (10);  Foo b = new Foo (10);  Foo c = a;  int d = 10;  double e = 10.0;  }  Which three logical expression evaluate to true?()

    • A、 (a ==c)
    • B、 (d ==e)
    • C、 (b ==d)
    • D、 (a ==b)
    • E、 (b ==c)
    • F、 (d ==10.0)

    正确答案:A,B,F

  • 第6题:

    Which three statements about subqueries are true? ()

    • A、Asinglerowsubquerycanretrieveonlyonecolumnandonerow.
    • B、Asinglerowsubquerycanretrieveonlyonerowbutmanycolumns.
    • C、Amultiplerowsubquerycanretrievemultiplerowsandmultiplecolumns.
    • D、Amultiplerowsubquerycanbecomparedusingthe";>;";operator.
    • E、AsinglerowsubquerycanusetheINoperator.
    • F、Amultiplerowsubquerycanusethe";=";operator.

    正确答案:B,C,E

  • 第7题:

    多选题
    Given: 11. Which three EL expressions are valid and evaluate to true?()
    A

    ${not map.c}

    B

    ${map.d or map.a}

    C

    ${map.a and map.d}

    D

    ${map.false or map.true}

    E

    ${map.a and map.b or map.a}


    正确答案: E,A
    解析: 暂无解析

  • 第8题:

    多选题
    Which expressions will evaluate to true if preceded by the following code?()   String a = "hello";   String b = new String(a);   String c = a;   char[] d = { ’h’, ’e’, ’l’, ’l’, ’o’ };
    A

    (a == Hello)

    B

    (a == b)

    C

    (a == c)

    D

    a.equals(b)

    E

    a.equals(d)


    正确答案: C,D
    解析: 暂无解析

  • 第9题:

    多选题
    Given a web application in which the request parameter productID contains a product identifier. Which twoEL expressions evaluate the value of the productID?()
    A

    ${productID}

    B

    ${param.productID}

    C

    ${params.productID}

    D

    ${params.productID[1]}

    E

    ${paramValues.productID}

    F

    ${paramValues.productID[0]}


    正确答案: E,F
    解析: 暂无解析

  • 第10题:

    多选题
    Given: 11. 15. Which three EL expressions, inserted at line 15,are valid and evaluate to "3"?()
    A

    ${vals.2}

    B

    ${vals[2]}

    C

    ${vals.index}

    D

    ${vals[index]}

    E

    ${vals}[index]

    F

    ${vals[vals[index-1]]}


    正确答案: B,D
    解析: 暂无解析

  • 第11题:

    多选题
    Which three statements about the secure domain router are true?()
    A

    The logical router can span across chassis.

    B

    The fabric and system controller module are shared by all logical routers.

    C

    Each logical router has a distinct fabric and system controller module

    D

    The logical router can share a route processor

    E

    The logical router cannot share a route processor


    正确答案: E,B
    解析: 暂无解析

  • 第12题:

    多选题
    Given: 11. 16. Which three EL expressions, inserted at line 16, are valid and evaluate to "d"?()
    A

    ${map.c}

    B

    ${map[c]}

    C

    ${map[c]}

    D

    ${map.map.b}

    E

    ${map[map.b]}


    正确答案: E,D
    解析: 暂无解析

  • 第13题:

    Given a web application in which the request parameter productID contains a product identifier. Which twoEL expressions evaluate the value of the productID?()

    • A、${productID}
    • B、${param.productID}
    • C、${params.productID}
    • D、${params.productID[1]}
    • E、${paramValues.productID}
    • F、${paramValues.productID[0]}

    正确答案:B,F

  • 第14题:

    Which statement is true about logical units?()

    • A、Logical units are similar to VLANs used by other vendors.
    • B、A logical unit is required for transit interfaces.
    • C、Frame Relay encapsulation supports one logical unit.
    • D、Link speed and duplex are configured in the logical unit properties.

    正确答案:B

  • 第15题:

    Integer i = new Integer (42);  Long 1 = new Long (42);  Double d = new Double (42.0);   Which two expressions evaluate to True?()

    • A、 (i ==1)
    • B、 (i == d)
    • C、 (d == 1)
    • D、 (i.equals (d))
    • E、 (d.equals (i))
    • F、 (i.equals (42)

    正确答案:D,E

  • 第16题:

    Given: 11.<% java.util.Map map = new java.util.HashMap(); 12.request.setAttribute("map", map); 13.map.put("a", "true"); 14.map.put("b", "false"); 15.map.put("c", "42"); %> Which three EL expressions are valid and evaluate to true?()

    • A、${not map.c}
    • B、${map.d or map.a}
    • C、${map.a and map.d}
    • D、${map.false or map.true}
    • E、${map.a and map.b or map.a}

    正确答案:A,B,E

  • 第17题:

    Which statement is true regarding the COALESCE function?()

    • A、It can have a maximum of five expressions in a list 
    • B、It returns the highest NOT NULL value in the list for all rows 
    • C、It requires that all expressions in the list must be of the same data type 
    • D、It requires that at least one of the expressions in the list must have a NOT NULL value

    正确答案:C

  • 第18题:

    多选题
    public static void main( String[] args ) {  Integer a = new Integer(10);  Integer b = new Integer(10);  Integer c = a;  int d = 10;  double e = 10.0;  }   Which three evaluate to true?()
    A

    (a == c)

    B

    (d == e)

    C

    (b == d)

    D

    (a == b)

    E

    (b == c)

    F

    (d == 10.0)


    正确答案: B,D
    解析: 暂无解析

  • 第19题:

    多选题
    Given a web application in which the request parameter product ID contains a product identifier.Which two EL expressions evaluate the value of the product ID?()
    A

    ${product ID}

    B

    ${param.productID}

    C

    ${params.productID}

    D

    ${params.productID[1]}

    E

    ${paramvalues.productID}

    F

    ${paramValues.productID[0]}

    G

    ${pageContext.request.productID}


    正确答案: F,D
    解析: 暂无解析

  • 第20题:

    多选题
    public class Foo {  private int val;  public foo(int v) (val = v;)  }  public static void main (String [] args)  {  Foo a = new Foo (10);  Foo b = new Foo (10);  Foo c = a;  int d = 10;  double e = 10.0;  }  Which three logical expression evaluate to true?()
    A

    (a ==c)

    B

    (d ==e)

    C

    (b ==d)

    D

    (a ==b)

    E

    (b ==c)

    F

    (d ==10.0)


    正确答案: A,C
    解析: 暂无解析

  • 第21题:

    多选题
    Given: 11. 16. Which three EL expressions, inserted at line 16, are valid and evaluate to "d"?()
    A

    ${map.c}

    B

    ${map[c]}

    C

    ${map[c]}

    D

    ${map.map.b}

    E

    ${map[map.b]}


    正确答案: A,C
    解析: 暂无解析

  • 第22题:

    多选题
    Given:  Integer i = new Integer (42);  Long l = new Long (42);  Double d = new Double (42.0);   Which two expression evaluate to true?()
    A

    (i = = l)

    B

    (i = = d)

    C

    (d = = l)

    D

    (i.equals(d))

    E

    (i.equals(i))

    F

    (i.equals(42))


    正确答案: D,A
    解析: 暂无解析

  • 第23题:

    多选题
    Which three logical expressions evaluate to true?()
    A

    (a = = c)

    B

    (d = = c)

    C

    (b = = d)

    D

    (a = = b)

    E

    (b = = c)

    F

    (d == 10.0)


    正确答案: B,E
    解析: 暂无解析

  • 第24题:

    多选题
    Integer i = new Integer (42);   Long 1 = new Long (42);  Double d = new Double (42.0); Which two expressions evaluate to True? ()
    A

    (i ==1)

    B

    (i == d)

    C

    (d == 1)

    D

    (i.equals (d))

    E

    (d.equals (i))

    F

    (i.equals (42))


    正确答案: E,B
    解析: 暂无解析