Network Administrator Lab Viv Questions and Answers
K S POLYTECHNIC
NETWORK ADMINISTRATOR LAB VIV QUESTIONS AND ANSWERS
1)What is computer hardware?
Computerhardwareis the collection of physical parts of a computer system. This includes the computer case, monitor, keyboard, and mouse. It also includes all the parts inside the computer case, such as the hard disk drive, motherboard, video card, and many others.
2)What is computer software?
Computer software(often called justsoftware) is a set of instructions and associated documentation that tells acomputerwhat to do or how to perform a task or it can mean all thesoftwareon acomputer, including the applications and the operating system.
3)what is Operating System?
Anoperating system(OS) issystemsoftware that manages computer hardware and software resources and provides common services for computer programs. All computer programs, excluding firmware, require anoperating systemto function.
4)What is CPU?
CPU is the brains of thecomputerwhere most calculations take place.
5)What is mother board?
a printed circuit board containing the principal components of a computer or other device, with connectors for other circuit boards to be slotted into.
6)What is monitor?
Acomputer monitoris the device that displays the information produced by the CPU. A monitor can come in either LCD or CRT format.
7)What is Input Devices?
In computing, aninput deviceis a peripheral (piece of computer hardware equipment) used to provide data and control signals to the system. Examples ofinput devicesinclude keyboards, mouse, scanners, digital cameras and joysticks.
8)What is output device?
Anoutput deviceis anydeviceused to send data from a computer to anotherdeviceor user. Examples include monitors, projectors, speakers, headphones and printers.
9)What is keyboard?
Akeyboardis used to enter data into acomputeror other device.
10)What is mouse?
Acomputer mouseis a pointing device (hand control) that detects two-dimensional motion relative to a surface. Moving amousealong a flat surface can move the on-screen cursor to different items on the screen.
11)What is RAM?
RAM(random access memory) is the place in a computing device where the operating system (OS), application programs and data in current use are kept so they can be quickly reached by the device's processor.
12)What is HDD?
Ahard disk drive(HDD) is a data storage device used for storing and retrieving digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.
13)what is CD-ROM?
CD-ROM. Short for Compact Disc-Read Only Memory, aCD-ROM(shown right) is anopticaldisc which contains audio or software data whose memory is read only. ACD-ROM Drive oroptical driveis the device used to read them.
14)What is processor?
Processor (computing)Central processing unit(CPU), the hardware within a computer that executes a program.
15)What is SMPS?
Short forSwitched-Mode Power Supply,SMPSis a power supply that uses a switching regulator to control and stabilize the output voltage by switching the load current on and off. SMPS converts Alternate Current (AC) to Direct Current (DC). These power supplies offer a greater power conversion and reduce the overall power loss.
16)Why cooling fan is required in computer?
Afanmoves air across the heat sink, which allows the heat sink to absorb heat from the CPU, and all of this heat is eventually blown out thecomputer'sexhaust vent.
17)What is network?
Acomputer networkis a set ofcomputersconnected together for the purpose of sharing resources. The most common resource shared today is connection to the Internet.
18)What is crimping tool?
Acrimpingtool is a device used to conjoin two pieces of metal by deforming one or both of them in a way that causes them to hold each other. The result of the tool's work is called acrimp.
19)What is RJ-45?
RJ45. An 8-pin/8-position plug or jack is commonly used to connect computers onto Ethernet-based local areanetworks(LAN).
20)Why CAT 6 Cable is used?
Category6cable, commonly referred to asCat 6, is a standardized twisted pair cable used for transferring data in Ethernet. The cable standard specifies performance of up to 250 MHz.
21)What is ip address in networking?
An Internet Protocoladdress(IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computernetworkthat uses the Internet Protocol for communication.
22)What is different between manual or static and dynamic ip addressing?
Difference betweenstaticand dynamic IPs. When a device is assigned astatic IP address, theaddressdoes not change. Most devices use dynamicIP addresses, which are assigned by thenetworkwhen they connect and change over time.