Interview Questions.

Question 1. What Are The Major Difference Between Udp And Tcp/ip Protocol?

Answer :

The first element is UDP is connection much less where as TCP is  connection orientated.The broadcasting and multicasting  software program is available within the UDP simplest.Why due to the fact it's miles  connection much less subsequently we will broadcast the packets very  without problems,no need to await connection like in tcp,which  takes extra put off.

Question 2. Write Udp/sock_dgram Applications?

Answer :

To put into effect the udp provider we need to creat socket by using socket  machine call which takes argument as SOCK_DGRAM that's used for to skip the records within the shape of datagrams.

Voice Over Internet Protocol (VOIP) Interview Questions
Question 3. How To Get Ip Header Of A Udp Message?

Answer :

Actually ip header isn't in a udp message.It a comes atnetwork hyperlink layer even as udp messege generate at transport layer.

Question 4. How To Be Sure That A Udp Message Is Received?

Answer :

In IP Header Protocol subject is available,it tells which  protocol it is using as a delivery layer,if this field is having 6(in decimal)it shows TCP,17(in decimal)it suggests UDP.

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Question five. What Is Trojan?

Answer :

Named after the Trojan Horse of historical Greek history, a trojan is a community software program utility designed to remain hidden on an hooked up computer. Trojans usually serve maliciious purposes and are consequently a form of malware, like viruses. 
Trojans sometimes, as an instance, get entry to personal facts saved locally on home or enterprise computers, then ship these statistics to a remote party via the Internet. 
Alternatively, trojans may also serve simply as a "backdoor" software, beginning community ports to allow other network  packages get admission to to that laptop. Trojans are also  able to launching Denial of Service (DoS) attacks. A aggregate of firewalls and antivirus software program protect networks against trojans. 
Trojans are just like worms. In comparison to worms and viruses, but, trojans do not replicate themselves or are trying to find to contaminate other systems once installed on a laptop.
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Question 6. How Many Types Of Transmission Are There?

Answer :

Two types of transmissions

Serial
parallel
serial way sending one bit at a time on a unmarried twine  used over lengthy distances extra green used to send information to outside systems

Parallel method sending bits at a time on distinct wires  used over quick distances efficient however no longer serial used to ship information in internal transfers

Question 7. A Computer Monitor Has A Resolution Of 1300 By a thousand Pixels. If Each Pixel Uses 1024 Colors, How Many Bits Are Needed To Send The Complete Contents Of A Screen?

Answer :

We need 10 bits to reveal 1024 shades in a binary machine, consequently 10 bits are required for every pixel to be addressed. 

We need 1300*a thousand*10 bits to ship a entire content of a screen.

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Question 8. If The Bandwidth Of The Channel Is eight Kbps, How Long Does It Take To Send A Frame Of 200,000 Bits Out Of This Device?

Answer :

26ms.

Question 9. A Device Is Sending Out Data At The Rate Of 2000 Bps. How Long Does It Take To Send Out 100 Bits? How Long Does It Take To Send Out A Signal Character (eight Bits)? How Long Does It Take To Send A File Of a hundred,000 Characters? How Long Does It Take To Send Out a hundred Bits?

Answer :

100/2000 = zero.05 sec.

Internet Protocol version 6 (IPv6) Interview Questions
Question 10. How Long Does It Takes To Send Out A Single Character Of eight Bits?

Answer :

eight/2000 = 0.004 sec.

Question 11. How Long Does It Take To Send A File Of one hundred thousand Characters?

Answer :

As, single man or woman is of eight bits.So,

eight*100000/2000 = 400 sec

Internet Protocol model four (IPv4) Interview Questions
Question 12. Tell Me Can Ssl Support Udp, As Ssl Support Tcp?

Answer :

No SSL cannot guide in UDP beacuse in UDP is a connectionless protocol it is centered on the rate than the security.

Voice Over Internet Protocol (VOIP) Interview Questions
Question 13. What Do You Mean About Isp, And What Is Work?

Answer :

ISP: (net provider providers)who gives net  services

paintings of ISP:

supplying net services i.E ips
web server sevices
Virtual web hosting(control net server ,area and users  intenet related works)
Question 14. Is The Ip Address Of Computer And Modems Is Same Or Not?

Answer :

No. The IP cope with of a device is the logical cope with wherein  because the cope with of the MODEM is the MAC(Media Access Control) adderess, it's miles the bodily cope with furnished by means of the vendor.

Question 15. Which Is The Faster Protocol Either Udp Or Tcp?

Answer :

UDP is the quicker protocol as it doesn't look forward to acknowledgement so it isn't always in any respect having reliability in comparison to TCP.

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