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Q. What is Bipolar Encoding?
- Uses three voltage levels negative, positive and zero
- Zero level represents binary 0; 1s are represented with alternating positive and negative voltages even when not consecutive
- Alternate mark inversion (AMI)
What is CRC The CRC is computed while transmission and appended to output stream as soon as last bit goes out onto wire. If the CRC were in header, it will be necessary to make
Can you describe the concept of IP multicasting or multicast IP address?
Threats to information can include Deletion of a file or files. Corruption, caused either by hardware problems or by a bug in the software. Theft of company data
State the statements about PPP and SLIP for WAN communications? Ans) a) PPP uses its Network Control Programs (NCPs) component to encapsulate many protocols. b) SLIP
advantage og stored program control automation
Q. Advantages of Fiber Optics? - Higher bandwidth in comparison to twisted-pair and coaxial cable is not limited by medium but by equipment used to generate and receive signals
Q. Use of Two-Layer Switch? - Performs at the physical as well as data link layer - A bridge with many ports designed for faster performance - Allocates unique port to ea
a) Peer-to-Peer Network Computers can act as both servers sharing resources and as clients using the resources. b) Server-based Network Give centralized control of netwo
What is NVT (Network Virtual Terminal) It is a set of rules explaining a very simple virtual terminal interaction. The NVT is used in the begin of a Telnet session.
Explain Wiretapping?
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