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

Total Questions: 150

141. 1000 of 8421 binary coding system is equal to 1011 in ________ binary coding.

Correct Answer: B. Excess-3

142. If the following functional dependencies holds on a selection R:

A →B, A → С, ВС  → D, CF, B →E, then which of the following dependency does not hold on R?

Correct Answer: D. BD → EF

143. In OSI model match the following:

   Column-I (Layers)   Column-II (Functions)
 (i) Physical layer (a) Dialog control & synchronization
 (ii) Data link layer (b) Synchronization of bits
 (iii) Session layer (c) Translation & compression
 (iv) Presentation layer (d) Error control & framing
 (i) (ii) (iii) (iv)
 A. (b) (d) (a) (c)
 B. (a) (c) (b) (d)
 C. (c) (a) (d) (b)
 D. (d) (b) (c) (a)
Correct Answer: A.

144. Which of the following output is not expected from MS-Excel function = RAND()?

Correct Answer: B. 1

145. Which of the following recurrence relation is related to worst case time complexity of quick sort?

Correct Answer: C. T(n) = T(n - 1) + Cn

146. Choose true statements about virtual functions in C++:

I. The virtual functions must be member of some class.
II. They cannot be static members.
III. A virtual function can be a friend of another class.

Correct Answer: D. I, II and III

147. In MS-Office Word short cut key used to change case of selected text is:

Correct Answer: D. Shift + F3

148. This element is used to change the current directionality of the text, in HTML:

Correct Answer: D. <bdo>

149. ________ topology requires highest number of ports and largest amount of cabling in computer networks.

Correct Answer: C. Mesh

150. EBCDIC code 1111 1001 represents the character ________ .

Correct Answer: D. 9