[ All computer questions and answers ]
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[ Jharkhand General Knowledge & General Studies Questions ]
Useful GK for JPSC, JSSC, JET, Jharkhand Police and other exams.
241. Java block initialized once at class loading is
[A] local
[B] static
[C] instance
[D] none
241.
[A]
[B]
[C]
[D]
सही उत्तर: B
व्याख्या: Static block runs once at class loading
Correct Answer:
Explanation: Important question.
242. Stylus is
[A] Cursor
[B] Flag
[C] Index
[D] Stylus
242.
[A]
[B]
[C]
[D]
सही उत्तर: D
व्याख्या: Stylus is pen-like pointing device
Correct Answer:
Explanation: Important question.
243. Hexadecimal system base is
[A] 4
[B] 8
[C] 9
[D] 16
243.
[A]
[B]
[C]
[D]
सही उत्तर: D
व्याख्या: Hexadecimal uses base 16
Correct Answer:
Explanation: Important question.
244. Device connecting different networks is
[A] Hub
[B] Router
[C] Switch
[D] Gateway
244.
[A]
[B]
[C]
[D]
सही उत्तर: D
व्याख्या: Gateway connects different network protocols
Correct Answer:
Explanation: Important question.
245. Protocol used for sending email is
[A] FTP
[B] HTTP
[C] SMTP
[D] IP
245.
[A]
[B]
[C]
[D]
सही उत्तर: C
व्याख्या: SMTP is used for email sending
Correct Answer:
Explanation: Important question.
246. Warm boot is
[A] Restart
[B] Shutdown
[C] Sleep
[D] Hibernate
246.
[A]
[B]
[C]
[D]
सही उत्तर: A
व्याख्या: Warm boot means restart
Correct Answer:
Explanation: Important question.
247. DBMS transaction property is
[A] Isolation
[B] Atomicity
[C] Durability
[D] All of the options
247.
[A]
[B]
[C]
[D]
सही उत्तर: D
व्याख्या: All are ACID properties
Correct Answer:
Explanation: Important question.
248. Java does NOT support multiple inheritance
[A] C++
[B] Perl
[C] Python
[D] Java
248.
[A]
[B]
[C]
[D]
सही उत्तर: D
व्याख्या: Java does not support multiple inheritance of classes
Correct Answer:
Explanation: Important question.
249. Time taken to move head to track is
[A] Search Time
[B] Seek Time
[C] Data Transfer Time
[D] Head Switching Time
249.
[A]
[B]
[C]
[D]
सही उत्तर: B
व्याख्या: Seek time is arm movement time
Correct Answer:
Explanation: Important question.
250. PreparedStatement is used for
[A] Low Level
[B] Parameterized
[C] Executable
[D] Simple
250.
[A]
[B]
[C]
[D]
सही उत्तर: B
व्याख्या: Used for parameterized queries
Correct Answer:
Explanation: Important question.