Daily Exam Programmer 08-09-2024

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Q 1: Which of the following statement is not defined in the Object class?
(1) sleep (long milliseconds)
(2) wait()
(3) notify()
(4) toString()
Correct Answer: sleep (long milliseconds)

Q 2: What is the result of the expression 75.22+"5.2"?
(1) The double value in 80.42
(2) The string in "80.42"
(3) The string is "75.225.2"
(4) The long value is 80
Correct Answer: The string is "75.225.2"

Q 3: What is extension name of a Java source code file?
(1) .java
(2) .bj
(3) .class
(4) .exe
Correct Answer: .java

Q 4: Identify the following who presented the object modeling technique (OMT)
(1) Booch
(2) Jim Rumbaugh ET AL
(3) Both of them
(4) None of the above
Correct Answer: Jim Rumbaugh ET AL

Q 5:

Data flow in DFD must have:

  1. An arrow showing direction of flow of data
  2. A meaningful name
  3. A label such as ;xyz
  4. no arrow as they are confusing
(1) 1 and 2
(2) 1 and 3
(3) 2 and 4
(4) 3 and 4
Correct Answer: 1 and 2

Q 6: The receive equalizer reduces delay distortions using a-
(1) tapped delay lines
(2) gearshift
(3) descrambler
(4) difference engine
Correct Answer: tapped delay lines

Q 7: Banner grabbing is an example of what?
(1) Footprinting
(2) Active operating system fingerprinting
(3) Passive operating system fingerprinting
(4) Application analysis
Correct Answer: Passive operating system fingerprinting

Q 8: The approach of transport layer; in which if data comes into the sender node in small pieces, it sends the first piece and buffer all the rest until the first piece is acknowledged; is called
(1) Silly Window syndrome
(2) RTP (Real Time, Transport Protocol)
(3) Nagle's algorithm
(4) Slow start algorithm
Correct Answer: Nagle's algorithm

Q 9: If every non-key attribute is functionally dependent on the primary key, then the relation is in
(1) First normal form
(2) Second normal form
(3) Third normal form
(4) Fourth normal form
Correct Answer: Second normal form

Q 10:

Which one of the following statements is false

(1) The data dictionary is normally maintaned by the database administrator
(2) Data elements in the database can be modified by changing the data dictionary
(3) The data dictionary contains the name and description of each data element
(4) The data dictionary is a tool used exclusively by the database administrator
Correct Answer: Data elements in the database can be modified by changing the data dictionary