Interview question and answer: Interview Questions for Network Infrastructure Part 2

Interview Questions for Network Infrastructure Part 2

December 11, 2015 Network/Hardware No comments

The questions are helpful for interview Network Engineer Part 2

Questions	Sample answers
What is TCP/IP?	TCP/IP is short for Transmission Control Protocol / Internet Protocol. This is a set of protocol layers that is designed to make data exchange possible on different types of computer networks, also known as heterogeneous network.
What is Hybrid Network?	A hybrid network is a network setup that makes use of both client-server and peer-to-peer architecture.
What is ICMP?	ICMP is Internet Control Message Protocol. It provides messaging and communication for protocols within the TCP/IP stack. This is also the protocol that manages error messages that are used by network tools such as PING.
What is the difference between a hub and a switch?	A hub acts as a multiport repeater. However, as more and more devices connect to it, it would not be able to efficiently manage the volume of traffic that passes through it. A switch provides a better alternative that can improve the performance especially when high traffic volume is expected across all ports.
What is DNS?	DNS is Domain Name System. The main function of this network service is to provide host names to TCP/IP address resolution.
What is ipconfig?	Ipconfig is a utility program that is commonly used to identify the addresses information of a computer on a network. It can show the physical address as well as the IP address.
What is client/server?	Client/server is a type of network wherein one or more computers act as servers. Servers provide a centralized repository of resources such as printers and files. Clients refers to workstation that access the server.
What is SMTP?	SMTP is short for Simple Mail Transfer Protocol. This protocol deals with all Internal mail, and provides the necessary mail delivery services on the TCP/IP protocol stack.
What do mean by tunnel mode?	This is a mode of data exchange wherein two communicating computers do not use IPSec themselves. Instead, the gateway that is connecting their LANs to the transit network creates a virtual tunnel that uses the IPSec protocol to secure all communication that passes through it.
What protocols fall under the TCP/IP Internet Layer?	There are 4 protocols that are being managed by this layer. These are ICMP, IGMP, IP and ARP.
What is IPv6?	IPv6 , or Internet Protocol version 6, was developed to replace IPv4. At present, IPv4 is being used to control internet traffic, butis expected to get saturated in the near future. IPv6 was designed to overcome this limitation.
What is Ping?	Ping is a utility program that allows you to check connectivity between network devices on the network. You can ping a device by using its IP address or device name, such as a computer name
What is peer to peer?	Peer to peer are networks that does not reply on a server. All PCs on this network act as individual workstations.
What is the use of a default gateway?	Default gateways provide means for the local networks to connect to the external network. The default gateway for connecting to the external network is usually the address of the external router port.
What is tracert?	Tracert is a Windows utility program that can used to trace the route taken by data from the router to the destination network. It also shows the number of hops taken during the entire transmission route.