TCS Placement: Sample Questions 489 - 491 of 502

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Question 489

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Describe in Detail

Essay▾

What is Redundancy?

Explanation

  • Redundancy includes extra information for detecting or correcting errors.
  • A shorter group of bits is appended to the end of each unit
  • Extra redundant bits are discarded as soon as the accuracy of the transmission has been determined.
Given the Image is Define the Redundancy
  • Sender adds the redundant bits and the receiver checks the complete bit stream through the checking function.

Question 490

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Write in Short

Short Answer▾

One fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. If both do combine in how much time they will finish?

Explanation

  • One fast typist can type matter in 2 hr and another slow typist can type same matter in 3 hr.
  • If both work together then they can complete the work in,

Question 491

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Describe in Detail

Essay▾

What is Proxy ARP?

Explanation

  • Proxy Address Resolution Protocol enables the switch to respond to ARP queries for network addresses by giving it an Ethernet media access control address.
    • Switch captures and routes traffic to the intended destination.
    • Used when hosts are on different physical networks without subnet masking.
    • With proxy enabled, ARP broadcasts do not propagate between hosts on different physical networks- hosts thus do not receive a response to their ARP request if the destination is on a different subnet.
    • Allows hosts to communicate with each other through the switch.
  • Allows a subnet to reach remote subnets without using a routing or a default gateway.
Given the Image is Define the IP Proxy ARP (Proxy Address Resolution Protocol)

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