Interview Questions - Part 2nd

Q-1) What is router protocol?

Ans-) Router protocols helps you to specify way routers communicate with each other. It allows the network to select routes between any two nodes on a computer network.

Q-2) What is routing protocol?

Q-3) What is routed protocol?

Q-4) What is port number of important protocol ?

ProtocolPort Number
FTP(Data)20
FTP(Control)21
SSH22
Telnet23
SMTP25
DNS53
DHCP67,68
TFTP69
HTTP80
HTTPS443
SNMP161,162
POP110
SMTP25
IMAP143


Q-5) Explain the UTP/STP network cable color coding according to EIA/TIA T-568 A & 568 B. 

EIA/TIA 568-AEIA/TIA 568-B
White-GreenWhite-Orange
GreenOrange
White-OrangeWhite-Green
BlueBlue
White-BlueWhite-Blue
OrangeGreen
White-BrownWhite-Brown
BrownBrown

Q-6) What is MAC address? How to check MAC address of the PC?
Ans - MAC address is the physical address of the device which is 48-bits or 12 digit address. Ipconfig /all or getmac commands are used to check MAC address of the computer. This address is in hexadecimal format.

Q-7) Define HTTPS protocols ?
Ans - The full form of HTTPS is a Hypertext transfer protocol secure. It is an advanced version of the HTTP protocol that is used to communicate between the user browser and the website. Its port number is 443 by default. It uses SSL/TLS protocol for providing security.

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