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Computer Aptitude

Description: Test Your Computer knowledge
Number of Questions: 15
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Tags: computer basics computer aptitude networking Computer Knowledge Internet and Network
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What is the best possible definition of subnetting?

  1. Partitioning of a single physical network into more than one smaller logical sub-networks

  2. Combining two different networks to form a much more larger network

  3. Reducing the size of the given network without divisioning

  4. Forming a bridge between two different adhoc networks

  5. None of the above

Show answer
Correct Option: A
Explanation:

Subnetting is the process of dividing the given network(the ip address range) into multiple logical networks.

Which of the following addresses is a class A non private IP address?

  1. 119.235.0.123

  2. 129.0.0.255

  3. 192.45.23..0

  4. 10.0.0.1

  5. None of these

Show answer
Correct Option: A
Explanation:

Class A IP address range from 0.0.0.0 to 127.255.255.255 where as IANA-reserved private class A address range is from 10.0.0.0 to 10.255.255.255.

What is the naming notation of the IP address represented in the following format? 193.162.2.0/24

  1. Class full notation

  2. Open addressing

  3. CIDR notation

  4. Virtual addressing

  5. None of the above

Show answer
Correct Option: C
Explanation:

The given IP address notation is called Classless Inter domain Routing Notation(CIDR).

What is the first test that is performed by computer on boot?

  1. POST

  2. BOOTSTRAP

  3. CHKDSK

  4. Explorer

  5. None of the above

Show answer
Correct Option: A
Explanation:

POST (power on self test) is the first test that is performed by the computer to check all the peripherals are working fine.

What are the two sublayers present in 2nd layer(from bottom) of OSI reference model?

  1. TCP, UDP

  2. LLC, MAC

  3. UDP, IP

  4. RARP, BOOTP

  5. None of the above

Show answer
Correct Option: B
Explanation:

Logical Link Control(LLC) and Media Access Control (MAC) are two sub layers of data link layer( 2nd layer from bottom in OSI).

What will the value of the 4th octect of class C broadcast address? Eg: 194.128.1.X What could be the value of x?

  1. 0

  2. 255

  3. 1

  4. 127

  5. None of the above

Show answer
Correct Option: B
Explanation:

For a class C IP address the first 3 octets are used for identifying the network and the last octet is used for identifying the host and the value 255 is reserved as broadcast address.

Which type of port is used to connect a mouse to a computer other than the USB port?

  1. Serial port

  2. Parallel port

  3. PS/2 port

  4. IEEE 1394 interface

  5. None of the above

Show answer
Correct Option: C
Explanation:

These type of ports are used for connecting mouse.

What is the full form of NAT?

  1. Nature At Time

  2. Network Addressing Type

  3. New Antisense Transcript

  4. Network Address Translation

  5. None of the above

Show answer
Correct Option: D
Explanation:

Network Address Translation

Which of the following is a computer input device?

  1. Monitor

  2. Printer

  3. Headphones

  4. Digitiser

  5. None of these

Show answer
Correct Option: D
Explanation:

Digitiser is also known as tablet or graphics tablet because it converts graphics and pictorial data into binary inputs.

Which command is used to test weather a particular host is reachable over an IP network?

  1. who

  2. tracert

  3. ping

  4. netstat

  5. none of these

Show answer
Correct Option: C
Explanation:

It is used to find wether a particular host is reachable over a particular network.

Which of the following is an operation performed by the operating system?

  1. Memory management

  2. Resource allocation

  3. Event handling

  4. Process management

  5. All of the above

Show answer
Correct Option: E
Explanation:

An operating system is responsible for memory management, event handling, resource allocation and process management.

Which of the following is not a linux distribution?

  1. Fedora

  2. Ubuntu

  3. Red Hat

  4. Slackware

  5. Solaris

Show answer
Correct Option: E
Explanation:

Solaris is a different operating system and remaining are linux distributions. Solaris was developed before linux

Select the option which gives the correct descending order of the memory in a computer in terms of speed?

  1. CPU registers, RAM, flash memory, cache memory, hard drives, tape storage

  2. Cache memory, CPU registers, RAM, flash memory, hard drives, tape storage

  3. CPU registers, RAM, cache memory, hard drives, flash memory, tape storage

  4. CPU registers, RAM, cache memory, flash memory, hard drives, tape storage

  5. CPU registers, cache memory, RAM, flash memory, hard drives, tape storage

Show answer
Correct Option: E
Explanation:

The correct order is CPU registers, cache memory, RAM,  flash/USB,  hard drive, tape storage.

When you want to print a document without any alignment mistakes on different systems with different operating systems, which type of format will you select for the document?

  1. Word document

  2. PDF document

  3. XML document

  4. Excel document

  5. None of the above

Show answer
Correct Option: B
Explanation:

PDF format is the best suitable because it won't change any alignments form one OS to the another.

Which of the following sets of keys on a keyboard can be used with other keys for special tasks?

  1. Ctrl, Shift

  2. Left arrow, Right arrow

  3. Page Up, Page Down

  4. Esc, Tab

  5. Insert, Delete

Show answer
Correct Option: A
Explanation:

Ctrl and Shift are used with other keys for special tasks.

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