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Networking Interview Questions
Questions Answers Views Company eMail

Why transport layer protocols like TCP and UDP are called end-to-end protocols. What is the difference between them?

 2642

Differentiate between Baseband co-axial cable and broad band coaxial cable

 1065

Differentiate between Optical fibre and twisted pair

 1182

Differentiate between SMTP and SNMP

 3110

What are the basic functions of the data link layer?

 1257

Write down the basic features of HDLC protocol? Could HDLC be used as a data link protocol for a LAN? Justify your answer.

 2991

The 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.

 2094

What are the advantages of cell switching that is used in ATM?

 1948

Outline and discuss the main fields in Ethernet IEEE 802.3 frame. What are the main objectives of preamble ?

 1415

What 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.

 1124

Explain 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.

 1113

Subnet the class C network address 198.67.25.0 into eight subnets. Why are the ‘all ones’ and ‘all zeroes’ subnets not used ?

 1381

What 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.

 1166

What are the various classes of IP addressing? Calculate the maximum number of class A, B and C network Ids.

 1204

Why is a data link layer switch preferred over a hub ?

 1580

Un-Answered Questions { Networking }

Scenario: “In a switch two hosts are connected to port number 1 and 2 respectively; both the ports are configured with same VLAN id. When data is sent from one host to another, in switch VLAN tagging will happen or not? Why?”

1411

What is traffic shaping

715

Explain various ways in which Cisco unified communication systems can be deployed?

172

Why TCP/IP reference model is more popular than OSI model ?

2574

Describe network topology

181




How do I find my ip address in terminal?

621

How many types of modes are used in data transferring through networks?

150

Discuss the different factors affecting congestion control algorithms. ?

2794

What is network management?

574

Can isp block ports?

583

Define proxy servers and how do they protect computer networks?

542

How can I tell if a ftp port is open?

590

Which technologies are involved in establishing wan links?

529

salient feature of network administrator

1497

Why are global and device-level addressing systems necessary?

103

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