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- Question
Compare Error Detection and Error Correction:
- Correct Answer
- The correction of errors is more difficult than the detection In error detection, checks only any error has occurred In error correction, the exact number of bits that are corrupted and location in the message are known The number of the errors and the size of the message are important factors
- 1. What is the way in which the Asynchronous Transfer Mode works? Discuss
- 2. What is TELNET? Discuss
- 3. What is the (default) class type of 195.152.12.1? Discuss
- 4. What command-line tool would help you discover for which port numbers your computer is listening? Discuss
- 5. When would you use the ping command with the "-t" switch? Discuss
- 6. What do you meant by "triple X" in Networks? Discuss
- 7. Which of the following identifies broadband internet connections?
Options- A. IP, Wi-Fi, FTTP
- B. FTP, OSP, IP
- C. OSP, cellular radio network, FTP
- D. DSL, Wi-Fi, fixed wireless Discuss
- 8. Which of the following topologies has the highest reliability?
Options- A. Mesh
- B. Ring
- C. Bus
- D. Star Discuss
- 9. Give the sequence of execution of the various report triggers? Discuss
- 10. What is the difference between BRD, SRS and Use Case documents? Discuss
Technology problems
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Correct Answer: The Asynchronous Transfer Mode or ATM is a connection technology that works by transmitting data into organized 53 bytes (small) packages through a physical environment with a high efficiency Packing data into small cells reduces transportation delay so the speeds reached by this technology are very high; it can reach even 10 Gb per second
Correct Answer: TELNET is a client-server application that allows a user to log on to a remote machine, giving the user access to the remote system TELNET is an abbreviation of terminal Network
Correct Answer: CLASS B with NET ID 19515200
Correct Answer: netstat -n (on Dos prompt)
Correct Answer: to get the ping back from other computer with no packet loss
Correct Answer: The function of PAD (Packet Assembler Disassembler) is described in a document known as X3 The standard protocol has been defined between the terminal and the PAD, called X28; another standard protocol exists between hte PAD and the network, called X29
Correct Answer: DSL, Wi-Fi, fixed wireless
Explanation:
Internet Service Provider (ISP) is a company offering access to internet. They offer various services:
1. Internet Access
2. Domain name registration
3. Dial-up access
4. Leased line access
There exist several ways to connect to the internet. Following are these connection types available:
* Dial-up Connection
* ISDN
* DSL
* Cable TV Internet connections
* Satellite Internet connections
* Wireless Internet Connections
Correct Answer: Mesh
Explanation:
In the mesh topology, each computer is connected to the other with a separate physical link in a network. It is most reliable topology as the network does not get down in case one of the nodes is failed.
Correct Answer: Before form , After form , Before report, Between page, After report
Correct Answer: BRD - Business Requirement document is consist of functional Business Requirements, Gap Analysis (between current and future scenarios), In scope and Out of scope of the project, Business rules, Assumptions, Risk etc SRS - Source Requirement Specification is consist of Use cases, Use Case Scenarios, Activity flow diagram, Non functional Business Requirements Use cases - are the pictorial representation of user centric view of the system
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