PGT Computer Science (Level-3), (HTET Exam 2022)

Total Questions: 150

91. Boolean expression ~ (A * B) * (~A + B) * (~B + В) is equal to which of the following?

Correct Answer: A. ~A

92. In windows 8.1 which of the following options in control panel is related to adjustment of display brightness, volume and power options?

Correct Answer: A. Windows Mobility Center

93. IEEE 802.11 standard belongs to:

Correct Answer: A. Wireless LAN

94. In context of deadlock prevention in DBMS, wait-die and wound-wait schemes are _______ techniques.

Correct Answer: D. non-preemptive and preemptive respectively

95. Solve the equation:

Correct Answer: C. Boehm simple model

96. Choose valid set of output devices:

Correct Answer: C. Plotter, VDU, Headphone

97. In context of MS-Word, with a _______ indent, the second and all the following lines of a paragraph are indented more than the first line of the paragraph.

Correct Answer: D. hanging

98. _______ are used to identify a user who returns to a website.

Correct Answer: D. Cookies

99. In C++, an overloaded unary operator defined as a member function requires how many variables to be passed as function argument?

Correct Answer: A. Zero

100. As per Nyquist theorem, to reproduce the original analog signal one necessary condition is that the sampling rate be at least ________ the highest frequency present in the original signal.

Correct Answer: A. twice