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Q. What is Shielded Twisted Pair?
- A metal foil or braided-mesh covering encases every pair of insulated conductors to prevent electromagnetic noise called crosstalk
- Crosstalk take place when one line picks up some of the signals travelling over another line
- Uses RJ-45 connectors
- More expensive however less susceptible to noise
- STP also supports high Bandwidth over long distances
What is client/server? Client/server is a type of network wherein one or more computers act as servers. Servers give a centralized repository of resources like printers and fil
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 negat
Q. Explain the Bit-Level Encryption? Bit-Level Encryption - Data is divided into blocks of bits then altered by encoding/decoding, permutation, substitution, exclusive OR
Q. Show Example on Check Sum? Data: 10101001 00111001 Computing Checksum: 10101001 00111001 --------------- Sum 11100010 Receiver Side: 10101
The Internet Layer The internet layer is responsible for routing the data packets to the appropriate destination. Internet protocol (IP) is responsible for ensuring dat
FDDI Media FDDI signifies a 100 Mbps token-passing dual-ring LAN that uses a fiber-optic transmission medium. Even though it operates at faster speeds FDDI is similar to Tok
Tree topology Comments 1 - This features star nodes on a bus network 2 - All the disadvantages and advantages of both types of networks described above apply to this s
Determine the term - Mobility Mobility refers to the types of physical transitions that can be done by a mobile node within an 802.11 environment (no transition, movement from
Question : (a) Several techniques are now available for users to connect to the Internet. (i) A modem is commonly used to dial up to the Internet. Why is a modem needed fo
SONET STS SONET defines a hierarchy of signalling levels called as STSs (Synchronous Transport Signals). Every STS level supports a certain data rate specified in megabits p
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