HCL Technical Ability Questions And Answers

HCL Technical Ability MCQs : This section focuses on "Technical Ability" for HCL placement drives. These Technical Ability MCQs are asked in previous HCL placements/recruitment exams and will help you to prepare for upcoming HCL drives.

1. These are specially designed computers that perform complex calculations extremely rapidly

A. servers
B. super computers
C. laptops
D. mainframes

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2. What do first and last nodes of a xor linked lists contain? (let address of first and last be A and B)

A. NULL xor A and Bxor NULL
B. NULL and NULL
C. A and B
D. NULL xor A and B

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3. Which of the following concepts means waiting until runtime to determine which function to call?

A. Data hiding
B. Dynamic casting
C. Dynamic binding
D. Dynamic loading

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4. Which one of the following connects the high-speed high-bandwidth device to memory subsystem and CPU.

A. expansion bus
B. PCI bus
C. SCSI bus
D. None of the above

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5. What is the central device in star topology?

A. STP server
B. Hub/switch
C. PDC
D. Router

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6. Which of the following functions is(are) performed by the loader?

A. allocate space in memory for the programs and resolve symbolic references between object decks
B. adjust all address dependent locations, such as address constants, to correspond to the allocated space.
C. physically place the machine instructions and data into memory.
D. All of the above

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7. Choose the correct command to delete an attribute A from a relation R

A. alter table R delete A
B. alter table R drop A
C. alter table drop A from R
D. delete A from R

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8. Smaller and less expensive PC based servers are replacing ____________ in many businesses

A. super computers
B. clients
C. laptops
D. mainframes

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9. Level order traversal of a tree is formed with the help of

A. breadth first search
B. depth-first search
C. dijkstra’s algorithm
D. prims algorithm

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10. Which of the following concepts is used to implement late binding?

A. Virtual function
B. Operator function
C. Const function
D. Static function

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