Question 1

What is the difference between TCP and UDP?

Accepted Answer

TCP-Transmission Control Protocol UDP- user Datagram protocol UDP is user assisted program and converts the application into the encapsulated form and makes it end point for data to send and then TCP helps in transmission or broadcast!

Question 2

What is a TCP Session?

Accepted Answer

the layer that establishes ,manages and terminates the session between two communticating devices

Question 3

What is APIPA? How would you recognize it?

Accepted Answer

Automatic Private IP Addressing for small network if u see something default automatic numeric values entered in a device that is attached you can see someone novice has done that using APIPA

Question 4

What command would you type in at a command prompt to view the IP address of the remote computer?

Accepted Answer

Ping Netstat

Question 5

What is CIDR?

Accepted Answer

Classless Inter-Domain Routing

Question 6

What is traffic shaping?

Accepted Answer

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 open loop method to help manage congestion is forcing the packet to be transmitted at a more predictable rate This is called traffic shaping

Question 7

What are major types of networks and explain?

Accepted Answer

Server-based network: Provide centralized control of network resources and rely on server computers to provide security and network administration peer-to-peer network: computers can act as both servers sharing resources and as clients using the resources

Question 8

What is difference between ARP and RARP?

Accepted Answer

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 address of another host on its network by sending a ARP query packet that includes the IP address of the receiver The reverse address resolution protocol (RARP) allows a host to discover its Internet address when it knows only its physical address

Question 9

What is FDM?

Accepted Answer

FDM is an analog technique that can be applied when the bandwidth of a link is greater than the combined bandwidths of the signals to be transmitted

Question 10

What is WDM?

Accepted Answer

WDM is conceptually the same as FDM, except that the multiplexing and demultiplexing involve light signals transmitted through fiber optics channel

Question 11

What is TDM?

Accepted Answer

TDM is a digital process that can be applied when the data rate capacity of the transmission medium is greater than the data rate required by the sending and receiving devices

Question 12

What is IP address?

Accepted Answer

The internet address( IP address) is 32bits that uniquely and universally defines a host or router on the internet The portion of the IP address that identifies the network is called netid The portion of the IP address that identifies the host or router on the network is called hostid

Question 13

What are the differences between static ip addressing and dynamic ip addressing?

Accepted Answer

With static IP addressing, a computer (or other device) is configured to always use the same IP address With dynamic addressing, the IP address can change periodically and is managed by a centralized network service

Question 14

What are the LMHOSTS files?

Accepted Answer

The LMHOSTS file is a static method of resolving NetBIOS names to IP addresses in the same way that the HOSTS file is a static method of resolving domain names into IP addresses An LMHOSTS file is a text file that maps NetBIOS names to IP addresses; it must be manually configured and updated

Question 15

What is DHCP scope?

Accepted Answer

A scope is a range, or pool, of IP addresses that can be leased to DHCP clients on a given subnet

Question 16

What is the DNS forwarder?

Accepted Answer

DNS servers often must communicate with DNS servers outside of the local network A forwarder is an entry that is used when a DNS server receives DNS queries that it cannot resolve locally It then forwards those requests to external DNS servers for resolution

Question 17

What is the Routing Information Protocol or RIP?

Accepted Answer

RIP is a is an interior gateway protocol that was often used in interior networks and in some degree in internet networks It helps the router adapt to the modifications that are made in a network regarding connections Now it become less used since more efficient protocols were implemented like OSPF or IS-IS It is limited to a lower number of routers, a maximum of fifteen router

Question 18

What is Stop-and-Wait Protocol?

Accepted Answer

In Stop and wait protocol, sender sends one frame, waits until it receives confirmation from the receiver (okay to go ahead), and then sends the next frame

Question 19

What is usage of Sequence Number in Relaible Transmission?

Accepted Answer

The protocol specifies that frames need to be numbered This is done by using sequence numbers A field is added to the data frame to hold the sequence number of that frame Since we want to minimize the frame size, the smallest range that provides unambiguous communication The sequence numbers can wrap around

Question 20

What is Pipelining ?

Accepted Answer

In networking and in other areas, a task is often begun before the previous task has ended This is known as pipelining

Technology Questions