Random Flashcards
Put these in order, from 7 to 1:
Transport, Application, Physical, Data, Presentation, Network, Session.
7 – Application Layer 6 – Presentation Layer 5 – Session Layer 4 – Transport Layer 3 – Network Layer 2 – Data/link Layer 1 – Physical Layer
What is the primary difference between TCP and UDP?
Whilst both are used for sending data over a network, TCP differs because a connection is
made between the devices looking to communicate prior to data being sent, with the
connection then closed at the end of communication. The delivery and integrity of the data
is checked with TCP. In UDP, this is not the case. Data is merely sent and there is nothing in
place to confirm or guarantee delivery, and the error checking capabilities are limited.
What is ARP & what level of the OSI model does ARP work at?
ARP stands for Address Resolution Protocol and is used to map IP addresses to MAC
addresses on a network. ARP can be said to be residing on Layer 2 of the OSI Model: the
Datalink Layer.
What protocol does traceroute use?
As with Ping, traceroute uses the ICMP protocol.
What is the range of “well-known” Layer 4 ports?
A) 0 – 1023 B) 0 – 5041 C) 1024 – 49151 D) 49152 – 65535 E) None of the above
Ports 0 – 1023 are defined as the well-known ports, therefore are reserved for specific use.
Which console would you use to create a new Active Directory user account?
A. Active Directory Sites and Services.
B. Active Directory Domains and Trusts.
C. Active Directory Users and Computers.
D. Active Directory Service Interfaces Editor
Active Directory Users and Computers
A member of the finance team is having some problems connecting to the network. You
look at the Network setting and everything looks okay but when you click on the
wireless to connect, it fails. How would you investigate the problem?
*Forget network and rejoin.
*MAC filtering - is the device blocked?
*Could the WIFI password have been changed?
*I would also see whether I was able to connect
myself with another machine, as this can help determine whether the problem resides with
the finance team computer, or the AP in general.
*Has the device ever been able to connect to the network?
*Is anyone else having issues?
What is BIOS?
BIOS is abbreviated as a basic input output system and present in all computers. The main purpose of the BIOS is that it ensures that all the components of the computer function together.
All details regarding the hardware components in the system are contained in the BIOS. Special software is another name offered to BIOS as it interfaces the main hardware components of the system with the operating system. The flash memory chip on the motherboard is where it is stored.
What are the hardware components of a desktop computer/laptop?
This is a basic technical interview question to test the basic knowledge of computers. The answer would be that the hardware components for desktop and laptop computers are the motherboard, processor, RAM, monitor, mouse, soundcard, keyboard, graphics, hard disk drive, power supply, and floppy disk drive.
Mention the difference between RAM and ROM?
RAM is a random access memory that use to store data temporarily. It is the data which the computer working presently. ROM called read-only memory which is a permanent type of memory storage for storage of important data. An example can the BIOS.
What would you do when audio is not working on the computer?
The answer to this technical question is to check the basic cable connections. The connections that lead from speakers to power must be checked. Finally, the device drivers can check out and also the volume control must check.
What are the things to do when a customer calls up that his computer is slow?
The IT officer first needs to check if the computer takes a long time to start. The next step would be to check if the computer is slow with just one application or completely. Then the system checked for viruses, spyware, and malware. And finally, the system to check for the space available in the hard disk drive.
Do you have an idea about the blue screen of death (BSOD)?
The indicant of a critical system problem called the blue screen of death where in this case the computer freezes completely. In such a situation it does not denote anything. The system can restart or booted in the safe mode to solve this issue.
What are the lights that are present on the modem and what do they indicate?
The lights on the modem are power light which indicates if the power is on or off. The link light is the next light which makes sure if the modem is getting the broadband signal from the ISP.
To ensure if the internet is working, data light utilized. Connectivity light ensures if the modem linked to the computer. These are the lights present in the modem and their functions.
PC Overheating
A heating PC slows down the whole system and leads to frequent crashes. Additionally, PC components may also get permanently damaged due to constant exposure to heat.
There are two main reasons your PC heats up, i.e. either the cooling system isn’t working properly or the PC is heating to the point your cooling system can’t handle it anymore. In either case, I have written a comprehensive article on different solutions to handle an overheating PC. Do check it out.
