Thursday, February 6, 2020

4 Tips to Strengthen Your Troubleshooting Skills

Despite our best efforts in preventative maintenance and monitoring, our technology is destined to fail. Our hope is for a graceful failure but inevitably it ends up more like a catastrophe! While I’m being slightly hyperbolic, the core statement is still true: stuff breaks. This is where the art of troubleshooting comes in.
Yeah, that’s right. I said “art,” not “science.” While there are many variations on troubleshooting methods and models, and many training courses and certification paths that cover steps to troubleshooting, the best troubleshooters don’t necessarily follow a strict manual or script. They use their knowledge of the working system, past experience and yes, a little intuition, to determine the root cause and a path to a solution. It’s not always a straight path. Even the most experienced troubleshooter can be surprised on occasion by an off-the-wall solution.
For you fledgling troubleshooters out there, here are four tried and true guidelines to help you work through a challenging repair, reaching a solution without much wasted time and resources.

1. What’s wrong?

It’s nearly impossible to properly fix a problem if you cannot see the problem, especially with computers. There are really only two ways to “see” the problem. Either someone can explain it to you in the correct amount of detail or you have to somehow recreate the problem in order to observe it yourself. Considering that most issues present to basic users, individuals with little to no technical skillset, it’s unlikely you’ll get everything you need from them. So, we must attempt to get the computer to do what the user claimed it did. In the end, if you cannot reproduce it, the best thing to do is nothing. Tell the user to get screenshots of the issue the next time it occurs, or to allow a technician to see the problem before it goes away.
 2. Keep it simple, stupid!
No, I’m not calling you stupid … it’s an expression. But I like the sentiment. It’s easy, especially as we get more technical knowledge and experience, to get really creative in our troubleshooting and seek out complex (and exciting) solutions. Maybe it’s because we are trying to impress our boss. Or maybe it’s because with experience, we forget about the simple stuff. But I would argue that finding simple solutions will make your boss happier with you.
Let me say it this way, if you cannot connect to the network, would your boss prefer a request for a new router or to swap out a cable? Probably the cable, because the solution would be cheaper, faster and the least disruptive to the network. As a general rule, try to think of the cheapest and easiest solutions first before moving on to more challenging and expensive options. And don’t talk yourself out of the more obvious solutions, either. While we tend to poke fun, “is it plugged in?” “is it turned on?” and “have you tried turning it off and on again?” are often successful solutions to fixing most of our issues. It is estimated that more than 80 percent of networking issues are related to the Physical Layer of the OSI model.
 3. Practice, practice, practice
There are a lot of books, courses and study guides on troubleshooting. As an instructor, I find great value in having resources to consult while getting started as a technician. But if you really want to excel as a troubleshooter, just get in there and do it. Find a broken computer and try to make it work. Hands-on experience is invaluable in building your skills. You can read about bad memory, but until you’ve actually held a memory module in your hand, heard those beep codes during POST or replaced a module on a motherboard, you don’t really understand memory errors.
 4. “I don’t know”
That phrase often strikes fear into the heart of a technician. No one likes to admit when they are in over their head. But a good technician doesn’t run from lack of knowledge. Instead, not knowing something should drive you to learn. It’s especially difficult when you have a customer or end-user waiting with bated breath for you to swoop in and save the day. You don’t want to let them down. But I guarantee, a user will be much happier if you say, “give me a few hours to research this issue and I’ll get right back to you” than if you waste time pretending to fix something even though you have no idea what you are doing. Honesty does go a long way in this situation. But where do you go to get more information?
For more: troubleshooting jobs

Wednesday, February 5, 2020

Technical Support Manager Job Description

Requirements and Responsibilities
Manages technical service-related operations for an organization. Oversees the work of engineering, IT or maintenance staff to ensure that all jobs are completed on time, within budget, and to customer specifications. Ensures that physical inventory levels are monitored and replenished as needed. Responsible for designing and implementing improved process or operational policies. Recommends changes to products or services to fulfill customer needs. Requires a bachelor's degree. Typically reports to top management. Manages subordinate staff in the day-to-day performance of their jobs. True first level manager. Ensures that project/department milestones/goals are met and adhering to approved budgets. Has full authority for personnel actions. Extensive knowledge of department processes. Typically requires 5 years experience in the related area as an individual contributor. 1 to 3 years supervisory experience may be required.
The Technical Support Manager is responsible for the day-to-day operation of the organization’s computer systems and network, ensuring 24/7 operation of systems and when problems arise, effecting quick and permanent solutions.

TECHNICAL SUPPORT MANAGER ESSENTIAL DUTIES AND RESPONSIBILITIES

  • Direct and coordinate a team of tech support specialists/help desk technicians
  • Prioritize IT-related problems as they come in to Help Desk and escalate when necessary
  • Assign problems/tasks to tech support specialists
  • Regularly analyze and review logs to determine if problems are imminent and develop solutions before they occur
  • Analyze situations and determine resources needed to solve them
  • Make decisions quickly, often with limited information
  • Follow up with customers to gauge their satisfaction with problem resolution; identify tech support problem areas (i.e., negative trends) and, if warranted, implement corrective actions
  • Ensure ongoing training for tech support staff; advise tech support staff on career planning; maintain and analyze training records

Tuesday, February 4, 2020

Vmware Benefits

  • Agility: limits time of provisioning from weeks to seconds.
  • Cost: reduces both OpEx and CapEx with automation that eliminates manual configuration and streamlines network hardware requirements.
  • Choice: operates on any hypervisor, any network hardware, and integrates with any cloud management platform.
  • VMware Network Virtualization and VMware NSX

    VMware network virtualization comes in the form of VMware NSX. VMware NSX is the company’s network virtualization and security platform for the software-defined data center (SDDC).
    A virtual network built with VMware NSX is a software container that offers logical network pieces to connected workloads. These logical networks are created and managed programmatically by using the underlying physical network as a packet forwarding backplane, allowing for network and security servers to be appropriated and attached to virtual machines (VMs) within a network. As the VM moves from host to host, these services will remain attached to it and go where it goes.  VMware says its network virtualization can help data center operators achieve better speed, economics, and choice. 
    VMware NSX claims to lower application provisioning times down considerably, from months to minutes. VMware network virtualization is also said to boost data center security building security directly into the data center infrastructure. This allows users to deploy advanced partner services to increase protection and reduce risk.

Monday, February 3, 2020

Why to perform drive testing?



Why to perform drive testing and what are the types of drive testing in mobile network?

·        Transform any Android smartphone into mobile network testing tools to identify primary user experience (QoE) issues such as zones with no network coverage, dropped calls, low data speeds, poor video user experience and high latency etc.
·        Perform Voice call, SMS, upload and download speed tests, HTTP, cell availability, video streaming using RantCell app and get KPIs reports. For example; 4G LTE speed test, VoLTE test, CSFB, SRVCC KPIs. For data sheet on KPIs and Network parameters measured.
·        Get larger foot print of cellular network with mass deployment of RantCell app and perform post analysis through web-based dashboard with rich graphical and mobile network QoE Maps mobile network coverage map.
·        Voice and Data services are the basic service for any carriers in the mobile network so drive test is the best possible solution in the telecom industry in order to collect signal strength, mobile network latency of the network.
·        Drive test is conducted for checking coverage and quality of the cellular network signal, mobile network latency, voice/data services, user QoE and check the performance of the mobile network using RF Drive test tools. There are 3 types of drive tests which are Site level, Cluster Level and Market level.

SSV or SCFT drive test

·        Single cell functionality test or single site verification that is static test which collect each sector information of the cell site in terms of coverage and quality parameters depends upon the technology in the cellular mobile network.

Dynamic drive test

·        Dynamic drive test means moving around the site and collects the network information of the cell site in terms of coverage and quality and also perform Short calls and long calls in order to check the network strength, stability of the network, Handover between the cell sites, voice and data quality of the mobile network, continues test and non-stop continuous test, scheduled test etc.

Drive test solution should include:

·        Validation of new site surveys and approval for operational readiness.
·        User QoE benchmarking large geographical area pre and post optimization.
·        KPI Monitoring, KPI improvement analysis, QoE monitoring, cost optimization techniques in telecom and real time data analysis.
·        Solution should support to monitoring QoE permanently for High ARPU Customer to enhance the Quality of experience on mobile network. Real time monitoring with threshold alarms when service degrade.
·        Real time upload of data and web-based drive test data analysis, network QoS monitoring and network optimization.

Friday, January 31, 2020

What is Dive test in Telecom PDF?

In cellular system propagation models designed for the specific areas or terrain. When these models used in different environment, efficiency of the models is suffer. This change in efficiency affects coverage, capacity and Quality of Service (QoS) of cellular mobile network. Drive testing is method of measuring and assessing the QoS of mobile network. Different sites of recent technology 2G, 3G, HSPA, WCDMA, Long Term Evolution (LTE), WiMAX are analysed by drive testing with TEMS Investigation tools. These different sites analyses with different parameter like Rx Lev, Rx Qual, FER, BER etc. The aim of this paper is study of the drive test process and RF planning in Mobile communication. Different parameter of drive test is also discus in this paper. Keywords— drive test, RF parameter, TEMS Investigation. I. INTRODUCTION In order to study the nature of radiation pattern and strength of signal for a particular terrain we require certain king of modeling. These models are used for predicting the path loss between transmitter and receiver site. Due to this prediction we analyses the characteristics of propagation models. Efficiency is major characteristic of propagation models. Efficiency of the propagation models suffer when these propagation models used in different areas. Changes in efficiency affect the QoS of mobile networks. Designing of the drive test is based on the following two objectives.

for More: Drive Test Jobs

Thursday, January 30, 2020

How to Become a Drive Test Engineer

RF Drives Test Engineers are radio frequency experts responsible for conducting test activities and making sure radio frequency circuits and systems function properly. Other duties listed on a RF Drive Test Engineer resume include monitoring system activity, running tests, and developing new test procedures. Based on our collection of resume samples, these professionals should demonstrate RF engineering experience, attention to details, accuracy, communication skills, teamwork, and problem solving orientation. Most candidates hold a college degree in a relevant discipline.

RF Drive Test Engineer

Performed drive testing to analyze and benchmark network performance.
  • Responsible to complete the annual coverage and performance drive test analysis.
  • Data collection using X-CAL with 1 short call, 1 long call, and frequency scanning.
  • Helped other engineers to upload and process the data achieved after Bench Marking
  • Provided Trouble shooting for the teams in the field and co-coordinating with the client's requirement.
  • Responsible for creating voice and data setup for short call, long call, and packet call and making workspaces.
  • Developed drive routes using Microsoft Streets and Trips.
  • Worked on Sprint project.
  • Performed handover tests, stationary DL/UL throughput test E911 call test as well as mobility and cluster drive performed IRAT and reselection test, ensuring neighbor sites are up.
  • Performed CW and CCW tests to ensure there are no swapped sectors.
  • Worked on pre and post migration cluster drives.
  • Experienced in using Street Atlas and Microsoft Street and trip tools for the navigation of drive routes.

Wednesday, January 29, 2020

What is the job description of an rf engineer?


RF Technician Job Description

Radio frequency (RF) refers to the rate of oscillation of electromagnetic radio waves in the range of 3 kHz to 300 GHz, as well as the alternating currents carrying the radio signals. This is the frequency band that is used for communications transmission and broadcasting. Although RF really stands for the rate of oscillation of the waves, it is synonymous to the term "radio," or simply wireless communication.
Radio frequency is being used in a lot of fields, but in the context of information and communications technology it refers to the frequency band at which wireless telecommunications signals are being transmitted and broadcast. The frequency band is being divided into different parts, which are then assigned to different technology industries. This is known as the radio spectrum. For example, the VHF (very high frequency) band, which ranges from 30-300 MHz, is being used for FM radio, TV broadcasts, and amateur radio and its counterparts. For a lot of electronic communication devices, the ultra-high frequency (UHF) band is being used. This is the space used by mobile phones, wireless LAN, Bluetooth, and TV and land radio.
Radio frequency is produced by oscillating current a specified number of times and then radiating it off a conductor, referred to as an antenna, into empty space (this refers to space occupied by air rather than solid objects and does not refer to outer space) as electromagnetic radio waves. RF signals are sent and received using conductors through the phenomenon known as the skin effect, where RF current latches itself and flows through the surface of conductors rather than penetrating and passing through them like it does with other non-conducting solids. This effect is the core and basis of radio technology.

About the CompTIA A+ certification

 comptia a plus About the CompTIA A+ certification A+ (A Plus) is an entry-level computer certification for PC computer service technicians....