PGT Computer Science (Level-3), (HTET Exam 2018)

141. Consider channel capacity is 100 Mbps, mean frame length is 10000 bits and average frame arrival rate is 5000 frames/sec. Applying simple queuing theory, the mean frame delay to send a frame onto the channel is:

A. 200 micro seconds
B. 100 micro seconds
C. 0.5 seconds
D. 2 mili seconds

Correct Answer: A. 200 micro seconds

142. In context of C++, consider the following statements:

I. Friend function of a class can directly access both private and protected data of the class.
II. Member function of derived class can directly access both private and protected data of the class.
The true statement(s) is/are:

A. Only I
B. Only II
C. Both I and II
D. Neither I Nor II

Correct Answer: A. Only I

143. A double ellipse represents .................. attribute in ER-diagram.

A. Multi-valued
B. Composite
C. Derived
D. Complex

Correct Answer: A. Multi-valued

144. Consider Column-1 and Column-2:

Column-1	Column-2
1. Bing	(a) Social Networking
2. Flipkart	(b) e-mail
3. Facebook	(c) Search Engine
4. Google Chrome	(d) Online Shopping
5. gmail	(e) Web Browser

Match of Column-1 and Column-2 is:

	1	2	3	4	5
A.	(d)	(a)	(c)	(b)	(e)
B.	(c)	(d)	(a)	(e)	(b)
C.	(e)	(a)	(b)	(c)	(d)
D.	(c)	(e)	(b)	(d)	(a)

Correct Answer: B.

145. Time complexity of Merge Sort Algorithm and Binary Search Algorithm are respectively:

A. O(log₂ n) and O(n log₂ n)
B. O(n log₂ n) and O(log₂ n)
C. O(n²) and O(log₂ n)
D. O(2ᴺ) and O(n²)

Correct Answer: B. O(n log₂ n) and O(log₂ n)

146. In HTML the .............. element is used to contain characters that should be super script:

Correct Answer: B. <SUP>

147. Consider Column-1 and Column-2:

Column-1	Column-2
1. Microsoft Office	(a) File Archiver and Compressor
2. Windows-10	(b) Digital Library
3. WinZip	(c) Application Software
4. A.V.G.	(d) Operating System
5. N.D.L.I.	(e) Antivirus