IT MCQs

Computer errors caused due to incorrect input data or unreliable programs are often referred to as

1. IPO
2. GIGO
3. ABC
4. None of these

3x8 decoder will have:

1. 4 outputs
2. 5 outputs
3. 6 outputs
4. 8 outputs

What minimum number of bits is required to store the Hexadecimal number FF?

1. 16
2. 12
3. 8
4. 19
5. 4

Oracle is a platform:

1. Dependent
2. Independent
3. Solution
4. None of these

Data Integrity means:

1. Correctness
2. Consistency
3. Redundancy
4. Both A & B

Storing same data on multiple locations is called:

1. Integrity
2. Security
3. Redundancy
4. None of these

In a table composite key consists of ___ attribute (s).

1. More than one
2. One
3. Two
4. One & Two

___ normal form removes transitive dependency.

1. First
2. Third
3. Second
4. BCNF
5. None of these

Which join refers from the write table that have no matching key in the left table are included in the result set?

1. Left Outer Join
2. Right Outer Join
3. Full Outer Join
4. Half Outer Join

__ rollback requires the system to maintain additional information about the state of all the running transactions.

1. Partial
2. Total
3. Time
4. Commit
5. All of these

Which of these is a non-profit domain?

1. .org
2. .in
3. .com
4. all of these
5. none of these

People to whom a copy of the email will be delivered but they are notified will all the addresses the message is sent to is called:

1. Blind Carbon Copy
2. Carbon Copy
3. Draft
4. All of these

The earliest calculating device is:

1. Calculator
2. Difference engine
3. Analytical engine
4. Abacus

Which of the following data structures is a non-linear type?

1. Strings
2. Lists
3. Slacks
4. Graph
5. All of these

When in-order traversing a tree resulted in E A C K F H D B G; the preorder traversal would return?

1. FAEKCDHGB
2. FAEKCDBHG
3. EAFKHDCBG
4. FEAKDCHBG

Binary search algorithm cannot be applied to:

1. Sorted Linked List
2. Sorted Linear Array
3. Pointer Array
4. Sorted Binary Trees
5. All of these

In which communication mode the data can be sent and received in both directions but not at the same time?

1. Full-duplex
2. Duplex
3. Half-duplex
4. Simplex
5. All of these

Which of the following models does not necessitate defining requirements at the earliest in the lifecycle?

1. Spiral Prototyping
2. RAD & Waterfall
3. Prototyping Waterfall
4. Spiral & RAD

The agile software development model is built based on:

1. Incremental Development
2. Linear Development
3. Iterative Development
4. Both incremental & Iterative development

Data in ________ bytes size is called Big Data.

1. Meta
2. Peta
3. Giga
4. Tera
5. All of these