What is difference between ARP and RARP?
The address resolution protocol (ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical... Read more »
‘Computer Networks Interview Questions’ - KyaPoocha.com
What is the range of addresses in the classes of internet addresses?
Class A 0.0.0.0 - 127.255.255.255 Class B 128.0.0.0 - 191.255.255.255 Class C 192.0.0.0 - 223.255.255.255 Class D 224.0.0.0 - 239.255.255.255 Class E 240.0.0.0 -... Read more »
What is the difference between TFTP and FTP application layer protocols?
The Trivial File Transfer Protocol (TFTP) allows a local host to obtain files from a remote host but does not provide reliability or security. It uses the fundamental... Read more »
Explain 5-4-3 rule?
In a Ethernet network, between any two points on the network ,there can be no more than five network segments or four repeaters, and of those five segments only... Read more »
What is MAU?
In token Ring , hub is called Multistation Access Unit(MAU). Read more »
What is the difference between routable and non- routable protocols?
Routable protocols can work with a router and can be used to build large networks. Non-Routable protocols are designed to work on small, local networks and cannot... Read more »
What is LLC?
LLC is Logical Link Control, one of two sublayers of the data link layer of OSI reference model, as defined by the IEEE 802 standard. This sublayer is responsible... Read more »
What is virtual channel?
Virtual channel is normally a connection from one source to one destination, although multicast connections are also permitted. The other name for virtual channel... Read more »
What is virtual path?
Along any transmission path from a given source to a given destination, a group of virtual circuits can be grouped together into what is called path. Read more »
What is packet filter?
Packet filter is a standard router equipped with some extra functionality. The extra functionality allows every incoming or outgoing packet to be inspected. Packets... Read more »
What is traffic shaping?
One of the main causes of congestion is that traffic is often busy. If hosts could be made to transmit at a uniform rate, congestion would be less common. Another... Read more »
What is region?
When hierarchical routing is used, the routers are divided into what we will call regions, with each router knowing all the details about how to route packets to... Read more »
What is silly window syndrome?
It is a problem that can ruin TCP performance. This problem occurs when data are passed to the sending TCP entity in large blocks, but an interactive application... Read more »
What is NVT (Network Virtual Terminal)?
It is a set of rules defining a very simple virtual terminal interaction. The NVT is used in the start of a Telnet session. Read more »
What is Kerberos?
It is an authentication service developed at the Massachusetts Institute of Technology. Kerberos uses encryption to prevent intruders from discovering passwords... Read more »
What is a default gateway?
The exit-point from one network and entry-way into another network, often the router of the network. Read more »
How do you set a default route on an IOS Cisco router?
ip route 0.0.0.0 0.0.0.0 x.x.x.x [where x.x.x.x represents the destination address] Read more »
What is the difference between a domain local group and a global group?
Domain local groups grant permissions to objects within the domain in which the reside. Global groups contain grant permissions tree or forest wide for any objects... Read more »
What is LDAP used for?
LDAP is a set of protocol used for providing access to information directories. Read more »
What tool have you used to create and analyze packet captures?
Network Monitor in Win2K / Win2K3, Ethereal in Linux, OptiView Series II (by Fluke Networks). Read more »