Related InterviewSolutions

• Consider an implementation of unsorted single linked list. Suppose it has its representation with a head and a tail pointer (i.e. pointers to the first and last nodes of the linked list). Given the representation, which of the following operation can not be implemented in O(1) time ?(A) Insertion at the front of the linked list.(B) Insertion at the end of the linked list.(C) Deletion of the front node of the linked list.(D) Deletion of the last node of the linked list.
• Consider a database table R with attributes A and B. Which of the following SQL queries is illegal ?(A) SELECT A FROM R;(B) SELECT A, COUNT(*) FROM R;(C) SELECT A, COUNT(*) FROM R GROUP BY A;(D) SELECT A, B, COUNT(*) FROM R GROUP BY A, B;
• A function template in C++ provides _____ level of generalization.(A) 4(B) 3(C) 2(D) 1
• A network with bandwidth of 10 Mbps can pass only an average of 12,000 frames per minute with each frame carrying an average of 10,000 bits. What is the throughput of this network ?(A) 1 Mbps(B) 2 Mbps(C) 10 Mbps(D) 12 Mbps
• In Data mining, classification rules are extracted from _______.(A) Data(B) Information(C) Decision Tree(D) Database
• In compiler optimization, operator strength reduction uses mathematical identities to replace slow math operations with faster operations. Which of the following code replacements is an illustration of operator strength reduction ?(A) Replace P + P by 2 * P or Replace 3 + 4 by 7.(B) Replace P * 32 by P < < 5(C) Replace P * 0 by 0(D) Replace (P < <4) – P by P * 15
• In a fast Ethernet cabling, 100 Base-TX uses ____ cable and maximum segment size is _____.(A) twisted pair, 100 metres(B) twisted pair, 200 metres(C) fibre optics, 1000 metres(D) fibre optics, 2000 metres
• Which of the following statements is not true with respect to microwaves?(A) Electromagnetic waves with frequencies from 300 GHz to 400 THz.(B) Propagation is line-of-sight.(C) Very high-frequency waves cannot penetrate walls.(D) Use of certain portions of the band requires permission from authorities.