McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Master of Science in Information Technology (MSc IT) , Master of Science in Computer Science (MSc CS) , Bachelor of Business Administration in Computer Applications (BBA [CA]) , Programming Languages , Master of Science in Software Engineering (MSc SE) .
Chapters
| 151. |
Which of the following is false as far as type 4 driver is concern? |
| A. | type 4 driver is “native protocol, pure java” driver |
| B. | type 4 drivers are 100% java compatible |
| C. | type 4 drivers uses socket class to connect to the database |
| D. | type 4 drivers can not be used with netscape |
| Answer» D. type 4 drivers can not be used with netscape | |
| 152. |
Which driver is efficient and always preferable for using JDBC applications? |
| A. | type – 4 |
| B. | type – 1 |
| C. | type – 3 |
| D. | type – 2 |
| Answer» A. type – 4 | |
| 153. |
JDBC facilitates to store the java objects by using which of the methods of
|
| A. | 1, 2 |
| B. | 1,2,3 |
| C. | 1,3 |
| D. | 2,3 |
| Answer» B. 1,2,3 | |
| 154. |
The JDBC-ODBC bridge is |
| A. | three tiered |
| B. | multithreaded |
| C. | best for any platform |
| D. | all of the above |
| Answer» B. multithreaded | |
| 155. |
All raw data types (including binary documents or images) should be read and uploaded to the database as an array of |
| A. | byte |
| B. | int |
| C. | boolean |
| D. | char |
| Answer» A. byte | |
| 156. |
The class javA)sql.Timestamp has its super class as |
| A. | java)sql.time |
| B. | java)util.date |
| C. | java)util.time |
| D. | none of the above |
| Answer» B. java)util.date | |
| 157. |
BLOB, CLOB, ARRAY and REF type columns can be updated in |
| A. | jdbc 1.0 |
| B. | jdbc 4.0 |
| C. | jdbc 2.0 |
| D. | jdbc 3.0 |
| Answer» D. jdbc 3.0 | |
| 158. |
Which of the following methods finds the maximum number of connections that a specific driver can obtain? |
| A. | database.getmaxconnections |
| B. | connection.getmaxconnections |
| C. | databasemetadata)getmaxconnections |
| D. | resultsetmetadata)getmaxconnections |
| Answer» C. databasemetadata)getmaxconnections | |
| 159. |
When the message “No Suitable Driver” occurs? |
| A. | when the driver is not registered by class.forname() method |
| B. | when the user name, password and the database does not match |
| C. | when the jdbc database url passed is not constructed properly |
| D. | when the type 4 driver is used |
| Answer» C. when the jdbc database url passed is not constructed properly | |
| 160. |
Which driver is called as thin-driver in JDBC? |
| A. | type-4 driver |
| B. | type-1 driver |
| C. | type-3 driver |
| D. | type-2 driver |
| Answer» A. type-4 driver | |
| 161. |
How many trAnsweraction isolation levels are defined in javA)sql.Connection interface? |
| A. | 4 |
| B. | 3 |
| C. | 5 |
| D. | 2 |
| Answer» C. 5 | |
| 162. |
Which method is used to perform DML statements in JDBC? |
| A. | execute() |
| B. | executequery() |
| C. | executeupdate() |
| D. | executeresult() |
| Answer» C. executeupdate() | |
| 163. |
What is the disadvantage of Type-4 Native-Protocol Driver? |
| A. | at client side, a separate driver is needed for each database. |
| B. | type-4 driver is entirely written in java |
| C. | the driver converts jdbc calls into vendor-specific database protocol |
| D. | it does not support to read mysql data) |
| Answer» A. at client side, a separate driver is needed for each database. | |
| 164. |
TCP,FTP,Telnet,SMTP are example of? |
| A. | socket |
| B. | ip address |
| C. | protocol |
| D. | mac address |
| Answer» C. protocol | |
| 165. |
In Inetaddress class which method returns the host name of IP address? |
| A. | public string gethostname() |
| B. | public string gethostaddress() |
| C. | public string inetaddress getlocalhost() |
| D. | none |
| Answer» A. public string gethostname() | |
| 166. |
Show some networking terminology given below? |
| A. | all |
| B. | ip address |
| C. | protocol |
| D. | mac address |
| Answer» A. all | |
| 167. |
Which classes are used for connection less socket programming? |
| A. | datagram socket |
| B. | datagram packet |
| C. | both a and b |
| D. | none |
| Answer» C. both a and b | |
| 168. |
how many ports TCP/IP are reserved for specific protocol? |
| A. | 10 |
| B. | 1024 |
| C. | 2048 |
| D. | 512 |
| Answer» B. 1024 | |
| 169. |
how many bits are in a single IP address? |
| A. | 8 |
| B. | 16 |
| C. | 32 |
| D. | 64 |
| Answer» C. 32 | |
| 170. |
Which of these class is used to encapsulate IP address and DNS? |
| A. | datagram packet |
| B. | url |
| C. | inetaddress |
| D. | contenthandler |
| Answer» C. inetaddress | |
| 171. |
Which of these is return type of getAddress method of DatagramPacket class? |
| A. | findaddress() |
| B. | getaddress() |
| C. | address() |
| D. | whois() |
| Answer» B. getaddress() | |
| 172. |
Which of these method of DatagramPacket is used to find port number? |
| A. | port() |
| B. | getport() |
| C. | findport() |
| D. | receivedport() |
| Answer» A. port() | |
| 173. |
Which of these class is necessary to implement datagrams? |
| A. | datagrampacket |
| B. | datagramsocket |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» C. all of the mentioned | |
| 174. |
Which of these method of DatagramPacket is used to find the port number? |
| A. | port() |
| B. | getport() |
| C. | findport() |
| D. | recieveport() |
| Answer» A. port() | |
| 175. |
Which of these method of DatagramPacket is used to obtain the byte array of data contained in a datagram? |
| A. | getdata() |
| B. | getbytes() |
| C. | getarray() |
| D. | recievebytes() |
| Answer» A. getdata() | |
| 176. |
Which of these method of DatagramPacket is used to find the length of byte array? |
| A. | getnumber() |
| B. | length() |
| C. | length() |
| D. | getlength() |
| Answer» D. getlength() | |
| 177. |
Which of these method is used to start a server thread? |
| A. | run() |
| B. | start() |
| C. | runthread() |
| D. | startthread() |
| Answer» A. run() | |
| 178. |
Which of these method is called when http daemon is acting like a normal web server? |
| A. | handle() |
| B. | handleget() |
| C. | handleget() |
| D. | handleget() |
| Answer» C. handleget() | |
| 179. |
Which of these methods of httpd class is used to read data from the stream? |
| A. | getdta() |
| B. | getresponse() |
| C. | getstream() |
| D. | getrawrequest() |
| Answer» D. getrawrequest() | |
| 180. |
Which of these method of httpd class is used to get report on each hit to HTTP server? |
| A. | log() |
| B. | logentry() |
| C. | loghttpd() |
| D. | logresponse() |
| Answer» B. logentry() | |
| 181. |
Which of these method is used to find a URL from the cache of httpd? |
| A. | findfromcache() |
| B. | findfromcache() |
| C. | servefromcache() |
| D. | getfromcache() |
| Answer» C. servefromcache() | |
| 182. |
Which of these variables stores the number of hits that are successfully served out of cache? |
| A. | hits |
| B. | hitstocache |
| C. | hits_to_cache |
| D. | hits.to.cache |
| Answer» D. hits.to.cache | |
| 183. |
Which of these method of httpd class is used to write UrlCacheEntry object into local disk? |
| A. | writediskcache() |
| B. | writetodisk() |
| C. | writecache() |
| D. | writediskentry() |
| Answer» A. writediskcache() | |
| 184. |
Which of these is an instance variable of class httpd? |
| A. | port |
| B. | cache |
| C. | log |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 185. |
Which of these is an instance variable of httpd that is a Hashtable? |
| A. | port |
| B. | cache |
| C. | log |
| D. | stopflag |
| Answer» C. log | |
| 186. |
Which of these exception is thrown by URL class’s constructors? |
| A. | urlnotfound |
| B. | urlsourcenotfound |
| C. | malformedurlexception |
| D. | urlnotfoundexception |
| Answer» C. malformedurlexception | |
| 187. |
Which of these methods is used to know host of an URL? |
| A. | host() |
| B. | gethost() |
| C. | gethost() |
| D. | gethost() |
| Answer» B. gethost() | |
| 188. |
Which of these methods is used to know the full URL of an URL object? |
| A. | fullhost() |
| B. | gethost() |
| C. | externalform() |
| D. | toexternalform() |
| Answer» D. toexternalform() | |
| 189. |
Which of these class is used to access actual bits or content information of a URL? |
| A. | url |
| B. | urldecoder |
| C. | urlconnection |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 190. |
Which object of HttpSession can be used to view and manipulate information about a session? |
| A. | session identifier |
| B. | creation time |
| C. | last accessed time |
| D. | all mentioned above |
| Answer» D. all mentioned above | |
| 191. |
Which of these ways used to communicate from an applet to servlet? |
| A. | rmi communication |
| B. | http communication |
| C. | socket communication |
| D. | all mentioned above |
| Answer» D. all mentioned above | |
| 192. |
Which methods are used to bind the objects on HttpSession instance andget the objects? |
| A. | setattribute |
| B. | getattribute |
| C. | both a & b |
| D. | none of the above |
| Answer» C. both a & b | |
| 193. |
Which type of ServletEngine is a server that includes built-in support for servlets? |
| A. | add-on servletengine |
| B. | embedded servletengine |
| C. | standalone servletengine |
| D. | none of the above |
| Answer» C. standalone servletengine | |
| 194. |
What type of servlets use these methods doGet(), doPost(),doHead, doDelete(), doTrace()? |
| A. | genereic servlets |
| B. | httpservlets |
| C. | all of the above |
| D. | none of the above |
| Answer» B. httpservlets | |
| 195. |
Which cookie it is valid for single session only and it is removed each time when the user closes the browser? |
| A. | persistent cookie |
| B. | non-persistent cookie |
| C. | all the above |
| D. | none of the above |
| Answer» B. non-persistent cookie | |
| 196. |
Which action tags are used in JSP for developing web application with Java Bean? |
| A. | jsp:usebean |
| B. | jsp:setproperty |
| C. | jsp:getproperty |
| D. | both b & c |
| Answer» D. both b & c | |
| 197. |
Which technology do we mix our business logic with the presentation logic? |
| A. | servlet |
| B. | jsp |
| C. | both a & b |
| D. | none of the above |
| Answer» A. servlet | |
| 198. |
Which tag is used to execute java source code in JSP? |
| A. | declaration tag |
| B. | scriptlet tag |
| C. | expression tag |
| D. | none of the above |
| Answer» B. scriptlet tag | |
| 199. |
Which JSP Action tags is used to include the content of another resource,it May be jsp, html or servlet? |
| A. | jsp:include |
| B. | jsp:forward |
| C. | jsp:plugin |
| D. | jsp:papam |
| Answer» A. jsp:include | |
| 200. |
In JSP how many ways are there to perform exception handling? |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 5 |
| Answer» B. 2 | |
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