Why transport layer protocols like TCP and UDP are called end-to-end protocols. What is the difference between them?
2628Write down the basic features of HDLC protocol? Could HDLC be used as a data link protocol for a LAN? Justify your answer.
2981The physical layer service is a non-confirmed service. Assume that some bits of data are lost during transmission over physical media, which layer will detect the loss and take some remedial measures. Explain any one method clearly depicting how this operation is performed.
2072Outline and discuss the main fields in Ethernet IEEE 802.3 frame. What are the main objectives of preamble ?
1392What is the average number of transmission required to send a frame of length 1600 bytes correctly, if the bit error rate is 1 x 10-6.
1117Explain what is meant by the term ‘integrated service digital network’. Give three reasons a company might choose an ISDN link in preference to a leased line.
1099Subnet the class C network address 198.67.25.0 into eight subnets. Why are the ‘all ones’ and ‘all zeroes’ subnets not used ?
1361What do you understand by the term ‘structured cabling’. State the main rules that should be used when installing a cable. 31. Show that maximum cabling area for LAN for horizontal cabling runs is approximately 200m.
1153What are the various classes of IP addressing? Calculate the maximum number of class A, B and C network Ids.
1187
How can a network be certified as an effective network? What are the factors affecting them?
Explain network equipment used in wired-LANS and explain the function of Hub, Switch, and bridge.
What is the use of internet addresses?
What are user facing features?
Unable to connect to local DB
How proxy servers protect computer networks?
What is FXO and FXS?
pls. tell all the commands for configure cisco router 1900 series.
What is the purpose of cables being shielded and having twisted pairs?
What are the basic functions of the data link layer?
Explain Cisco IP Phone boot up process?
Briefly describe nat.
How many bits is ip address and port number?
How to delete software errors? What is that?
Explain ATM reference model.