Which of the following is a characteristic of a serial I/O port?（）A、RJ-11 connectorB、DB-15 connectorC、DB-9 connectorD、RJ-45 connector

题目

Which of the following is a characteristic of a serial I/O port?（）

A、RJ-11 connector
B、DB-15 connector
C、DB-9 connector
D、RJ-45 connector

相似考题

1.Which of the following is not an AVL tree?A．B．C．D．

2.What does the following function return?char foo(void){unsigned int a = 6;iht b = -20;char c;(a+b > 6) ? (c=1): (c=0);return c;}

3.A conversion operator which converts the current String instance into raw C-style. string oftype const char*.

4.Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR?()A. All objects in the databaseB. Tables owned by SYS and SYSTEMC. Data dictionary tablesD. NCHAR columnsE. CHAR columns

更多“Which of the following is a char”相关问题

第1题：

Given the following requirements:Create a table named TESTTAB, which has an identity column named ACTIVITYNO. Define the identity column to generate the values for the column by default. Start the values at 10 and increment by 10. Make the identity column unique. Which of the following CREATE statements will successfully create this table?（）
A.CREATE TABLE TESTTAB (ACTIVITYNO SMALLINT NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 10 INCREMENT BY 10), ACTKWD CHAR(6) NOT NULL, ACTDESC VARCHAR(20) NOT NULL, UNIQUE(ACTIVITYNO))
B.CREATE TABLE TESTTAB (ACTIVITYNO SMALLINT NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 10), ACTKWD CHAR(6) NOT NULL, ACTDESC VARCHAR(20) NOT NULL, UNIQUE(ACTNO))
C.CREATE TABLE TESTTAB (ACTIVITYNO SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY (START WITH 10 INCREMENT BY 1), ACTKWD CHAR(6) NOT NULL, ACTDESC VARCHAR(20) NOT NULL, UNIQUE(ACTIVITYNO))
D.CREATE TABLE TESTTAB (ACTIVITYNO SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY (START WITH 10 INCREMENT BY 10), ACTKWD CHAR(6) NOT NULL, ACTDESC VARCHAR(20) NOT NULL, UNIQUE(ACTIVITYNO))

参考答案：D
第2题：

Which of the following phonetic symbol is not right?

答案：D
解析：
第3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4题：

Which of the following utilities are used to choose which programs run at startup？（）
- A、SFC
- B、SETDEBUG
- C、MSCONFIG
- D、REGEDIT
正确答案:C
第5题：

The 8859-1 character code for the uppercase letter A is 65. Which of these code fragments declare and initialize a variable of type char with this value？（）
- A、char ch = 65；
- B、char ch = ’¥65’；
- C、char ch = ’¥0041’；
- D、char ch = ’A’；
- E、char ch = "A"；
正确答案:A,D
第6题：

You executed the following code： SQL> CERATE TABLE COUNTRY （COUNTRY_ID CHAR（2） CONSTRAINT COUNTRY_ID_nn NOT NULL， COUNTRY_NAME VARCHAR2（20）， CURRENCY_NAME VARCHAR2（20）， CONSTRAINT COUNTRY_ID_PK PRIMARY KEY （COUNTRY_ID）） ORGANIZATION INDEX； Which types of tables will be created automatically？（）
- A、 journal table
- B、 clustered table
- C、 mapping table
- D、 partitioned table
正确答案:C
第7题：

单选题
Which of the following technologies can improve convergence time following a link failure in a serviceprovider network？（）
A
MPLS TE FR
B
MPLS VPN
C
BFD
D
RSVP
E
VPLS
F
SNMP

正确答案： B
解析：暂无解析
第8题：

单选题
Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR？（）
A
All objects in the database
B
Tables owned by SYS and SYSTEM
C
Data dictionary tables
D
NCHAR columns
E
CHAR columns

正确答案： E
解析：暂无解析
第9题：

单选题
Given the following requirements:Create a table named TESTTAB, which has an identity column named ACTIVITYNO. Define the identity column to generate the values for the column by default. Start the values at 10 and increment by 10. Make the identity column unique. Which of the following CREATE statements will successfully create this table?（）
A
CREATE TABLE TESTTAB (ACTIVITYNO SMALLINT NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 10 INCREMENT BY 10), ACTKWD CHAR(6) NOT NULL, ACTDESC VARCHAR(20) NOT NULL, UNIQUE(ACTIVITYNO))
B
CREATE TABLE TESTTAB (ACTIVITYNO SMALLINT NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 10), ACTKWD CHAR(6) NOT NULL, ACTDESC VARCHAR(20) NOT NULL, UNIQUE(ACTNO))
C
CREATE TABLE TESTTAB (ACTIVITYNO SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY (START WITH 10 INCREMENT BY 1), ACTKWD CHAR(6) NOT NULL, ACTDESC VARCHAR(20) NOT NULL, UNIQUE(ACTIVITYNO))
D
CREATE TABLE TESTTAB (ACTIVITYNO SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY (START WITH 10 INCREMENT BY 10), ACTKWD CHAR(6) NOT NULL, ACTDESC VARCHAR(20) NOT NULL, UNIQUE(ACTIVITYNO))

正确答案： D
解析：暂无解析
第10题：

多选题
Which three SELECT statements display 2000 in the format "$2,000.00"? （）
A
SELECT TO_CHAR(2000, '$#,###.##') FROM dual;
B
SELECT TO_CHAR(2000, '$0,000.00') FROM dual;
C
SELECT TO_CHAR(2000, '$9,999.00') FROM dual;
D
SELECT TO_CHAR(2000, '$9,999.99') FROM dual;
E
SELECT TO_CHAR(2000, '$2,000.00') FROM dual;
F
SELECT TO_CHAR(2000, '$N,NNN.NN') FROM dual;

正确答案： D,E
解析：暂无解析
第11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： D,C
解析：暂无解析
第12题：

Which of the following sounds is a voiced bilabial stop?

答案：D
解析：
考查辅音的发音特征。[b]是带声的、双唇音和爆破音。
第13题：

Which two valid declarations of a char？（）
- A、 Char ch = “a”；
- B、 Char ch = ‘“‘ ‘；
- C、 Char ch = ‘cafe‘；
- D、 Char ch = “cafe”；
- E、 Char ch = ‘“ucafe‘；
- F、 Char ch = ‘“u10100‘；
- G、 Char ch = （char） true；
正确答案:B,E
第14题：

Which of the following is a performance optimization technology?（）
- A、QoS
- B、Trunking
- C、Spanning
- D、VoIP
正确答案:A
第15题：

Which of the following commands will be run at a command prompt to determine which WindowsOS is running on the computer?（）
- A、VER
- B、Device Manager
- C、VERIFY
- D、SET
正确答案:A
第16题：

Which expressions are correct to declare an array of 10 String objects？（）
- A、 char str[]；
- B、 char str[][]；
- C、 String str[]；
- D、 String str[10]；
正确答案:C
第17题：

Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR？（）
- A、 All objects in the database
- B、 Tables owned by SYS and SYSTEM
- C、 Data dictionary tables
- D、 NCHAR columns
- E、 CHAR columns
正确答案:E
第18题：

单选题
Which of the following is not a wind（）.
A
Growler
B
Norther
C
Levanter
D
Mistral

正确答案： C
解析：暂无解析
第19题：

单选题
Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR?（）
A
All objects in the database
B
Tables owned by SYS and SYSTEM
C
Data dictionary tables
D
NCHAR columns
E
CHAR columns

正确答案： B
解析：暂无解析
第20题：

单选题
Which expressions are correct to declare an array of 10 String objects？（）
A
char str[]；
B
char str[][]；
C
String str[]；
D
String str[10]；

正确答案： A
解析：严格来说这个题目没有给出一个正确的答案，唯一比较正确的是c，而完全满足题目要求的应该是：String str[]=new String[10]; 注意答案d的形式是不对的，这和c++也是不同的。
第21题：

多选题
Which two valid declarations of a char？（）
A
Char ch = “a”；
B
Char ch = ‘/’ ‘；
C
Char ch = ‘cafe’；
D
Char ch = “cafe”；
E
Char ch = ‘/ucafe’；
F
Char ch = ‘/u10100’；
G
Char ch = （char） true；

正确答案： G,B
解析：暂无解析

Which of the following is a characteristic of a serial I/O port?（）A、RJ-11 connectorB、DB-15 connectorC、DB-9 connectorD、RJ-45 connector

题目

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