What is APIPA? WHAT IS SUBNETMASK? DIFFERENCE BETWEEB IPv4 and IPv6. How many types of os installation? What is BIOS AND what is use of CMOS BATTARY? WHST IS HDD and how many types of HDD? How to shot SMPS AND HOW TO UPDRADE RAM? DIFFERENCE BETWEEN LAN AND MAN? WHAT IS OSI MODEL? HOW Many types of TOPOLOGY? HOW TO SAHRE DATA FROM ONE LAPTOP TO ANOTHER LAPTOP? HOW TO CREATE BOOTABLE PENDRIVE? HOW TO CREAT DUAL BOOT INSTALLATION.? HOW MANY PINS IN DDR1 , DDR2, DDR3 AND DDR4 RAM ? NO DISPLAY ISSUE . HOW TO FIX IT. ? HOW TO CREATE STRAIGHT AND CROSS-OVER CABLE? WHAT IS COLOR COAFING OF STRAIGHT AND CROSS-OVER CABLE? WHAT IS LOOPBACK IP. WHAT IS PHYSICAL ADDRESS? HOW MANY TYPES OF IP ADDRESS CLASSES? How to take backup of data? What is VPN AND VLAN?

Question

Accepted Answer

A set of technical questions related to desktop support engineering.

APIPA is Automatic Private IP Addressing used when DHCP server is not available.
Subnet mask is used to divide an IP address into network and host portions.
IPv4 uses 32-bit addresses while IPv6 uses 128-bit addresses.
There are two types of OS installation: clean installation and upgrade installation.
BIOS is a firmware that initializes hardware during bootup. CMOS battery is used to power the BIOS settings.
HDD is a hard disk drive used for data storage. There are two types of HDD: HDD and SSD.
To test SMPS, use a multimeter. To upgrade RAM, open the computer case and insert the new RAM module.
LAN is a local area network while MAN is a metropolitan area network.
OSI model is a conceptual model that describes how data is transmitted over a network. There are seven layers in OSI model.
There are five types of network topologies: bus, star, ring, mesh, and tree.
To share data from one laptop to another, use a network cable or a cloud storage service.
To create a bootable pendrive, use a software like Rufus or UNetbootin.
To create a dual boot installation, install two different operating systems on the same computer.
DDR1, DDR2, DDR3, and DDR4 RAM have 184, 240, 240, and 288 pins respectively.
To fix no display issue, check the monitor, graphics card, and RAM.
To create a straight cable, connect the same color wires on both ends. To create a crossover cable, connect different color wires on both ends.
Color coding of straight cable is: Orange-White, Orange, Green-White, Blue, Blue-White, Green, Brown-White, Brown. Color coding of crossover cable is: Orange-White, Green-White, Orange, Blue, Blue-White, Green, Brown-White, Brown.
Loopback IP is a special IP address used to test network connectivity. The loopback IP address is 127.0.0.1.
Physical address is a unique identifier assigned to each network interface card (NIC).
There are five classes of IP addresses: A, B, C, D, and E.
To take backup of data, use a backup software or copy the data to an external hard drive.
VPN is a virtual private network used to connect to a remote network securely. VLAN is a virtual LAN used to group devices on a network.

Accepted Answer

Ip4

Accepted Answer

APPIPA is stand for Automatic private internet protocol  is a part of operating system that allow to the computer automatically self configure IP and subnet mask when their DHCP server is not reachable .APIPA is range of Predefine Address 169,254 0.0 to 169 ,254,255,255 that Automatic assigned that Address itself .
If i am talk about subnet mask so The Purpose of subnet mask identify which Part of network part and which part of Host part. Subnet mask is 32 bit number where all bit of network part are represent 1 s and while the other hand all bit of host part are represent  as 0 .
For example - class c network .192.168 255.10.0 and subnet mask is 255,255,255,0.
There are many differences between in ip4 and Ip 6 .
Here we talk to about IP4 which is stand for internet protocol version 4. it was interduce in1981 and first deployed version in 1982 for production on SETNET. that is 32 bit which have to expressed by decimal notation .it is represented by  4 number and separate from . range of 0 to 255.which  have to be converted 0 to 1 to understood by the computer.
while  IPV6 is stand for internet protocol version 6 .It was interduce in 1995 by internet Engineering task force .Ip version 6 is better way as a compare of ip4 in term of complexity and efficiency. ipv6 is also know as hexadecimal number  and denoted by colon : can be written as 128 bits of 0s and 1s.

Top HCLTech Desktop Support Engineer interview questions & answers

Popular interview questions of Desktop Support Engineer

Top HR questions asked in HCLTech Desktop Support Engineer