What LAN analyzer tools are you familiar with and describe how you use them to troubleshoot and on what media and network types.

Wipro,

A periodic composite signal with a bandwidth of 3000 Hz,is composed of two sine waves. First one has a frequency of 100 Hz with a maximum amplitude of 30 V, the second one has a maximum amplitude of 10 V. Draw the bandwidth.

We measure the performance of a telephone line (4 KHz of bandwidth). When the signal is 20 V, the noise is 6 mV. What is the maximum data rate supported by this telephone line?

• Brief me about yourself? • What are your day to day job roles /responsibilities? • What is the through put of 3560 POE switch? • What is POE switch? • How will you configure VLAN in a new switch? • What is NAT? • Different types of NAT? • Difference between NAT & PAT? • Explain with diagram how you can access a PC on internet; will NAT come into picture, how? • How many physical ports are there in PIX 515E? Are they Ethernet of gigabyte? • What is difference between ASA5510 & ASA5550?How many ports are there • Explain any client network topology? • How will you configure a new firewall, parameters for configuration? • What is HSRP? • If a link is down what status will be the interface be in? • How good are you in SWITCHING ,rate yourself between 1 to 5 • What is VLAN • Avaya IP Phone, separate required? • Configuration for DATA and VOICE VLAN? • What is VTP? • Modes of VTP • Can we have more than 2 VTP servers in a single VTP domain? • What is STP? • How STP works? • How is Root Bridge elected? • Which priority is considered, highest or lowest? • Difference between STP & RSTP? • Modes of STP? • By default which mode of STP is there? • By default which mode of VTP is there? • In firewall which security level is what? • What is DMZ? • What is ether channel?

DELL, TCS,

pls. tell all the commands for configure cisco router 1900 series.

Hi I have 10+ years of telecom application development experience ( telecom billing product -call control (ISUP/INAP/CAMEL call handling), short message routing application, telecom tools development). I am very strong in C++/Unix , core java and advanced oops design. Recently I have undergone a training in 3G mobile protocol developement. I have very good knowledge about WCDMA, its various layers and gone through 3GPP technical specs. Now I am looking for 3G mobile development opportunities. I am finding very difficult to get it, as I don't have the relevant experiences on 3G development. Please advice me on this to enter into mobile protocol development.

what is the difference between Layer 3 switch and Router

Sify, TCS,

nowadays which protocol we are using?either tcp or udp?which is more useful?

what is the difference between tcp and udp protocol?nowadays internet using which type of protocol?

What is meaning of topology?

what is ethernet?

What is ESTMP?

Why DNS use both TCP and UDP ports. And for which purpose it uses TCP and UDP.

Accenture, HCL,

Why DNS use both TCP and UDP ports. And for which purpose it uses TCP and UDP.

Accenture, Wipro,

Why DNS use both TCP and UDP ports. And for which purpose it uses TCP and UDP.

Accenture,