Discuss the significance of DNS

9. Discuss the significance of DNS.   The DNS translates Internet domain and host names to IP addresses. DNS automatically converts the names we type in our Web browser address bar to the IP addresses of Web servers hosting those sites.   DNS implements a distributed database to store this name and address information for all public hosts on the Internet. DNS assumes IP addresses do not change (are statically assigned rather than dynamically assigned).   The DNS database resides on a hierarchy of special database servers. When clients like Web browsers issue requests involving Internet host names, a piece of software called the DNS resolver (usually built into the network operating system) first contacts a DNS server to determine the server's IP address. If the DNS server does not contain the needed mapping, it will in turn forward the request to a different DNS server at the next higher level in the hierarchy. After potentially several forwarding and delegation messages …
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Explain about voice over IP

10. Explain about voice over IP.   VoIP stands for Voice over Internet Protocol.  VoIP is a technology that allows telephone calls to be made over computer networks like the Internet. VoIP converts analog voice signals into digital data packets and supports real-time, two-way transmission of conversations using Internet Protocol (IP). VoIP calls can be made on the Internet using a VoIP service provider and standard computer audio systems. Alternatively, some service providers support VoIP through ordinary telephones that use special adapters to connect to a home computer network. Many VoIP implementations are based on the H.323 technology standard.     VoIP offers a substantial cost savings over traditional long distance telephone calls. The main disadvantage of VoIP is a greater potential for dropped calls and degraded voice quality when the underlying network links are under heavy load. SAP Client Copy – Local, Remote & Import / export What is…
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Explain about OSI reference model

Explain about OSI reference model.   11. Explain about OSI reference model.  Also describe other network models. SAP Architecture The OSI, or Open System Interconnection, model defines a networking framework to implement protocols in seven layers. Control is passed from one layer to the next, starting at the application layer in one station, and proceeding to the bottom layer, over the channel to the next station and back up the hierarchy. The OSI model takes the task of internetworking and divides that up into what is referred to as a vertical stack that consists of the following layers: What is SAP R3 Architecture ? Physical (Layer 1) This layer conveys the bit stream - electrical impulse, light or radio signal -- through the network at the electrical and mechanical level. It provides the hardware means of sending and receiving data on a carrier, including defining cables, cards and physical aspects. Fast Ethernet, RS232, and ATM are protocols with ph…
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Discuss the features of cellular telephone

Discuss the features of cellular telephone.   Accessories — Manufacturers offer a number of accessories that can make phones even more convenient to use, such as hands-free options (headsets, ear buds, bluetooth hands free devices), extra batteries, and portable charging adapters.     SAP Client Copy – Local, Remote & Import / export What is SAP Landscape? Battery Type — NiMH (nickel-metal hydride) and Li-ion (lithium ion) are the two primary types of mobile phone batteries. Li-ion is longer-lasting and lighter, but more expensive. Phones use more battery life during calls than when they are turned on but not in use.   Bluetooth — This wireless communications technology links compatible mobile phones, personal computers, PDAs, hands free devices, and other devices across short ranges. To ensure compatability with current devices, look for bluetooth version 2.0.   Caller ID — A feature that displays the name and/or number of the calling party on the p…
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What is meant by FRAME Relay ?

5. What is meant by frame relay?   Frame relay is a data link network protocol designed to transfer data on Wide Area Networks (WANs). Frame relay works over fiber optic or ISDN lines. The protocol offers low latency and to reduce overhead, does perform any error correction, which is instead handled by other components of the network. Frame relay has traditionally provided a cost-effective way for telecommunications companies to transmit data over long distances. Frame relay has decreased in popularity as companies are gradually migrating their deployments to Internet Protocol (IP) based solutions.   SAP Client Copy – Local, Remote & Import / export 6. Discuss about multicast routing. What is SAP Landscape? What is SAP R3 Architecture ? SAP Architecture SAP System Administration Transactions – 1
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Explain about congestion control

7. Explain about congestion control.   Congestion is an important issue that can arise in packet switched network. Congestion is a situation in Communication Networks in which too many packets are present in a part of the subnet, performance degrades. Congestion in a network may occur when the load on the network (i.e. the number of packets sent to the network) is greater than the capacity of the network (i.e. the number of packets a network can handle.)     SAP Client Copy – Local, Remote & Import / export SAP System Administration Transactions – 1 In other words when too much traffic is offered, congestion sets in and performance degrades sharply.   What is SAP Landscape? What is SAP R3 Architecture ? SAP Architecture
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Discuss about Application layer security

8. Discuss about Application layer security.   Application Layer Security :   Application layer security refers to methods of protecting Web applications at the application layer (layer 7 of the seven-layer OSI model) from malicious attacks that may expose private information. Security is applied to the application layer specifically to protect against unauthorized access and attacks. SAP System Administration Transactions – 1   SAP Client Copy – Local, Remote & Import / export Application Security Manager provides proactive application-layer protection by understanding and analyzing a user's interaction with the application firewall. Application Security Manager is automatically configured to allow only authorized application transactions, protecting networks and critical data from application attacks including hacking, cross-site scripting, and parameter tampering. Capabilities such as packet inspection and behavior analysis protect against mal…
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SOFTWARE ENGINEERING

MCA 203 – SOFTWARE ENGINEERING   PART – A   1. Describe the generic view of process.   The physical layer, the lowest layer of the OSI model, is concerned with the transmission and reception of the unstructured raw bit stream over a physical medium. It describes the electrical / 2. Describe the importance of customer communication.   3. Explain the system engineering hierarchy.   4. Explain about product engineering.   5. What is meant by data modeling?   6. Describe the design hierarchy of software engineering.   7. Describe the fundamentals of software engineering.   8. Discuss about component level testing.   9. Explain the concepts of quality management.   10. List the advantages of re-engineering. PART – B   11. Describe the spinal model and list its merits and limitations.   12. Discuss about agile process model.  Also list its merits over other process models.   SAP Client Copy – Local, Remote &…
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Explain about TDM

Explain about TDM.     Time Division Multiplexing processes information of different transmitters successively in defined time segments for transmission over one channel. Time Division Multiplexing is differentiated in synchronous and asynchronous multiplexing.   Asynchronous Time Division Multiplexing   Single data streams are classified in variable time segments and subsequently transmitted using the asynchronous time division multiplexing procedure. Thereby transmission occurs in no definite order. Each time segment receives a channel information number to separate them again in the demultiplexer procedure.   Synchronous Time Division Multiplexing   Using the synchronous method, single data streams are classified in defined time segments for subsequent transmission in predetermined order.     Using this TDM procedure for example 8 x Gigabit Ethernet applications can be multiplexed to one 10 Gigabit signal. In the following this independent 10 Gigabi…
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Explain about TDM

Explain about TDM.     Time Division Multiplexing processes information of different transmitters successively in defined time segments for transmission over one channel. Time Division Multiplexing is differentiated in synchronous and asynchronous multiplexing.     Asynchronous Time Division Multiplexing   Single data streams are classified in variable time segments and subsequently transmitted using the asynchronous time division multiplexing procedure. Thereby transmission occurs in no definite order. Each time segment receives a channel information number to separate them again in the demultiplexer procedure.   Synchronous Time Division Multiplexing   Using the synchronous method, single data streams are classified in defined time segments for subsequent transmission in predetermined order.     Using this TDM procedure for example 8 x Gigabit Ethernet applications can be multiplexed to one 10 Gigabit signal. In the following this independent 10 Gigabit s…
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Discuss about SONET

Discuss about SONET   Synchronous optical networking (SONET) is a standardized digital communication protocol that is used to transmit a large volume of data over relatively long distances using a fiber optic medium. With SONET, multiple digital data streams are transferred at the same time over optical fiber using LEDs and laser beams.   SONET is a product of the American National Standards Institute (ANSI).   SONET is not that different from other technologies, but hardware was manufactured to provide better configuration and reliable services to its users. SONET may use a re-generator for long haul distances. This device boosts signals that have already traveled for a long distance. Signals are transmitted into electrical signals and then re-generated into high-power signals. Add drop multiplexers (ADMs) are also common parts of SONET. ADMs are designed to fully support the network architecture of SONET. SONET supports multiple data streams at the same time. It was de…
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Describe the importance of the physical layer

Describe the importance of the physical layer.   The physical layer, the lowest layer of the OSI model, is concerned with the transmission and reception of the unstructured raw bit stream over a physical medium. It describes the electrical / optical, mechanical, and functional interfaces to the physical medium, and carries the signals for all of the higher layers. It provides:   Data encoding: modifies the simple digital signal pattern (1s and 0s) used by the PC to better accommodate the characteristics of the physical medium, and to aid in bit and frame synchronization. It determines:   What signal state represents a binary 1   How the receiving station knows when a "bit-time" starts How the receiving station delimits a frame Physical medium attachment, accommodating various possibilities in the medium.   Transmission technique: determines whether the encoded bits will be transmitted by baseband (digital) or broadband (analog) signaling.     Physical medium…
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Discuss about SONET

Discuss about SONET   Synchronous optical networking (SONET) is a standardized digital communication protocol that is used to transmit a large volume of data over relatively long distances using a fiber optic medium. With SONET, multiple digital data streams are transferred at the same time over optical fiber using LEDs and laser beams. SONET is a product of the American National Standards Institute (ANSI).   SONET is not that different from other technologies, but hardware was manufactured to provide better configuration and reliable services to its users. SONET may use a re-generator for long haul distances. This device boosts signals that have already traveled for a long distance. Signals are transmitted into electrical signals and then re-generated into high-power signals. Add drop multiplexers (ADMs) are also common parts of SONET. ADMs are designed to fully support the network architecture of SONET. SONET supports multiple data streams at the same time. It…
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Explain any three aggregate functions with examples

Explain any three aggregate functions with examples.   Aggregate Functions are keywords in SQL used to manipulate values within columns for output purposes. A function is a command always used in conjunction with a column name or expression. There are several types of functions in SQL.  An aggregate function is used to provide summarization information for an SQL statement, such as counts, totals, and averages.   MIN      - returns the smallest value in a given column   MAX     - returns the largest value in a given column   SUM    - returns the sum of the numeric values in a given column   AVG     - returns the average value of a given column   COUNT- returns the total number of values in a given column   COUNT(*) - returns the number of rows in a table   SQL Aggregate Functions: SQL Aggregate Functions operate on complete sets of data and return a single result. PointBase supports five Aggregate Functions: AVG, COUNT, MAX, MIN, and SUM.   AVG The AVG Funct…
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Explain embedded SQL

Explain embedded SQL.   Embedded SQL is a method of inserting inline SQL statements or queries into the code of a programming language, which is known as a host language.    Because the host language cannot parse SQL, the inserted SQL is parsed by an embedded SQL preprocessor.   Embedded SQL is a robust and convenient method of combining the computing power of a programming language with SQL's specialized data management and manipulation capabilities.  
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Explain Database architecture

Explain Database architecture   There are following three levels or layers of DBMS architecture:   • External Level   •Conceptual Level   • Internal Level   Objective of the Three Level Architecture   The objective of the three level architecture is to separate each user's view of the database from the Way the database is physically represented. There are several reasons why this separation is desirable:     • Each user should be able to access the same data, but have a different customized view of the data. Each user should be able to change the way he or she views the data, and this change should not affect other users.   • Users should not have to deal directly with physical database storage details, such as indexing or hashing. In other words a user's interaction with the database should be independent of storage considerations.   • The Database Administrator (DBA) should be able to change the database storage structures without affecting the user's views…
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Mistakes to avoid during a job interview

Mistakes to avoid during a job interview - Job interview tips    Mistakes to avoid during a job interview - Job interview tips 6 Mistakes to Avoid While Conducting an Interview Taking over. Rhetorical questions about the job description. Probing too deep into how they spend their personal time. Stress interviewing. Sparing newbies the difficult questions. Falling for the well-presented candidate.   (adsbygoogle = window.adsbygoogle || []).push({}); Common job interview mistakes to avoid Dressing inappropriately. Neglecting hygiene. Getting to the interview late. Arriving too early. Eating or drinking during the interview. Checking your phone. Knowing nothing about the job or company. Lying on your resume. Mistakes to avoid during a job interview - Job interview tips. (adsbygoogle = window.adsbygoogle || []).push({}); Anchor Suma Interview With KTR, KTR Interview On G…
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Talking About Types of Shops – English Vocabulary

Talking About Types of Shops – English Vocabulary   Types of Shops Vocabulary 1. bakery – a place where bread and cakes are baked, or a shop where they are sold 2. barber – a shop where men can have their hair cut 3. café – a small restaurant where you can buy drinks and simple meals 4. market – a time when people buy and sell goods, food, … or the place, usually outside or in a large building, where this happens 5. bookshop – a shop that sells books 6. candy shop – a happy place where innocent little children go to buy candy 7. clothes shop – a shop selling clothes 8. pawn shop – a pawnbroker’s shop 9 (adsbygoogle = window.adsbygoogle || []).push({}); . boutique – a small shop that sells fashionable clothes or other objects 10. computer shop – a store that sells computers to the small businessperson or personal user 11. butcher’s – a shop where you can buy meat 12. DVD rental – a physical retail business that rents home videos such…
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Sri Hanuman, ఆంజనేయస్వామి అవతారాలెన్ని?

ఆంజనేయస్వామి అవతారాలెన్ని?     ఆంజనేయస్వామి కూడా శ్రీ విష్ణుమూర్తిలా అవతారాలెత్తారు. మహావిష్ణువు దశావతారం ధరిస్తే.. ఆంజనేయస్వామివారు తొమ్మిది అవతారాలు ధరించారు.    (adsbygoogle = window.adsbygoogle || []).push({}); ... అవేంటంటే..   1. ప్రసన్నాంజనేయస్వామి 2. వీరాంజనేయస్వామి 3. వింశతి భుజ ఆంజనేయస్వామి 4. పంచముఖ ఆంజనేయస్వామి 5. అష్టదశ భుజ ఆంజనేయస్వామి 6. సువర్చలాంజనేయస్వామి 7. చతుర్బుజ ఆంజనేయస్వామి 8. ద్వాత్రింశద్భుజ ఆంజనేయస్వామి 9. వానరాకార ఆంజనేయస్వామి. ఆంజనేయస్వామి రుద్రాంశ సంభూతుడు. నవ అవతార ఆంజనేయస్వామి ఆలయం ఒంగోలులో ఉంది. ఇక్కడ పంచముఖ ఆంజనేయస్వామి ప్రధాన దైవం. ఆలయాన్ని పంచముఖ ఆంజనేయస్వామి ఆలయం అని పిలుస్తారు. ఆంజనేయస్వామి గురించి కొన్ని ... ఆంజనేయ స్వామికి పూజచేయవలసిన ప్రత్యేక రోజులు - శనివారం, మంగళవారం మరియు గురువారం. పురాణకథ ప్రకారం, ఒక సారి శని ఆంజనేయస్వామిని తన ప్రభావంతో వశపరచుకోవాలని ప్రయత్నించగా, స్వామి అతడిని తలక్రిందలుగా పట్టి, ఎగురవేయసాగాడు. శని తన అపరాధాన్ని మన్నించమని వేడగా, స్వామి తనను, తన భక్తులను యెప్పుడూ పీడించనని …
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Lord Venkateswara Rupam, iiQ8, TTD వేంకటేశ్వర స్వామి అవతారానికి 3 ప్రధాన కారణాలు

వేంకటేశ్వర స్వామి అవతారానికి 3 ప్రధాన కారణాలు... There are 3 main reasons for the incarnation of Lord Venkateswara Swamy ...  1. ఒక నాడు నారద ముని శ్రీ మహావిష్ణువు దగ్గరకు వెళ్లి అడిగారుట. కలియుగంలో మానవులు తక్కువ కాలం జీవిస్తున్నారు, భగ...వంతుడి మీద అస్సలు మనస్సు లేదని. అప్పుడు శ్రీ మహావిష్ణువు అన్నారుట, నేను వారి పాపాలని కడగడానికి, వారిని ఉద్ధరించడానికి శ్రీ వేంకటేశ్వరునిగా అవతరిస్తాను. వారు ఒక్కసారి నా కొండకి వచ్చి,  devotional, islam, quran, hindu, ramayan, bhagavad gita, telugu bhagavad gita, bhagavad geetha, telugu bhagavad geetha, bible, christian, muslim, yoga, meditation, health, knowledge base 2 u , telugu quran, telugu bible , slokam, telugu bhakti, prayer, devudu, temple, church, masjeed తల నీలాలు సమర్పించి, నా దర్శనం చేసుకుని, ఒక్క ఆర్జిత సేవ చేసినా (కలియుగంలో అశ్వమేథయాగం చేసినంత పుణ్యం. అసలు కలియుగంలో చెయ్యడం చాలా కష్టం మరియు నిషిద్ధం కూడా) వారి పాపాలని నేను తీసేస్తాను. వారి డబ్బు వెయ్యకపోయినా సరే, తల నీలాలు సమర్పిస్తే చాలు. (adsb…
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About Yoga 1 – యోగా 1 – Yoga in Telugu Pdf , What is YOGA ?

యోగా - Yoga -  योगः   అంటే వ్యాయామ సాధనల సమాహారాల ఆధ్యాత్మిక రూపం. ఇది హిందూత్వ అధ్యాత్మిక సాధనలలో ఒక భాగం. మోక్షసాధనలో భాగమైన ధ్యానం అంతఃదృష్టి, పరమానంద ప్రాప్తి లాంటి అధ్యాత్మిక పరమైన సాధనలకు పునాది. దీనిని సాధన చేసే వాళ్ళను యోగులు అంటారు. వీరు సాధారణ సంఘ జీవితానికి దూరంగా మునులు సన్యాసులవలె అడవులలో ఆశ్రమ జీవితం. 20 Signs of High Blood Sugar, iiQ8 health, Symptoms of Blood Sugar hyperglycemia   గడుపుతూ సాధన శిక్షణ లాంటివి నిర్వహిస్తుంటారు. ధ్యానయోగం ఆధ్యాత్మిక సాధనకు మానసిక ఆరోగ్యానికి చక్కగా తోడ్పడుతుంది. హఠయోగములో భాగమైన శారీరకమైన ఆసనాలు శరీరారోగ్యానికి తోడ్పడి ఔషధాల వాడకాన్ని తగ్గించి దేహధారుడ్యాన్ని, ముఖ వర్చస్సుని ఇనుమడింప చేస్తుంది. బుద్ధమతం, జైనమతం, సిక్కుమతం మొదలైన ధార్మిక మతాలలోనూ, ఇతర ఆధ్యాత్మిక సాధనలలోను దీని ప్రాధాన్యత కనిపిస్తుంది. (adsbygoogle = window.adsbygoogle || []).push({}); యోగా యోగాసనాలు - :  యోగా విధానములో శరీర వ్యాయామ విధానాలనే యోగాసనాలు అని వ్యవహరిస్తాము. యోగాసనాలు అంటే శారీరక వ్యాయామ విధాన క్రియలు. ఈ ఆసనాల ద్వార…
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