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Recent questions in Computer Networks
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What are super cookies??
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Computer Networks
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Describe the trends that challenge data communications
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3 days
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Computer Networks
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Explain the terms: Amplitude Shift Keying (ASK), Phase Shift Keying (PSK) and Frequency Shift Keying (FSK)
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Discuss the term wavelength division multiplexing
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Computer Networks
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Frequency and Phase Modulation are special cases of what kind of modulation?
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Discuss the difference between the two (2) types of Time Division Multiplexing (TDM)
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What is the difference between a periodic signal and a causal signal? Give an expression that describes each signal type
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3 days
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Explain the difference between a continuous time signal and a discrete time signal and give an expression that describes each signal type
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1
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Explain the two (2) forms of Multiplexing
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1
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What is Multiplexing. Is it cost-effective?
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3 days
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Differentiate between AM, PM and FM
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3 days
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What's the primary function of a Modem
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Give two (2) reasons for analog modulation of analog signals
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3 days
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Computer Networks
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1
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What is Modulation
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3 days
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1
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Explain thermal noise, Intermodulation noise, Crosstalk and Impulse noise
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Discuss two (2) transmission impairments
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3 days
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1
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Differentiate between analog and digital signals
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3 days
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What is the spectrum of a signal. How is spectrum different from bandwidth
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3 days
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0
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1
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What's the difference between Nyquist channel capacity theory and the Shannon theory
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3 days
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1
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Explain data rate, bandwidth and error rate
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3 days
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0
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1
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Discuss Direct-link, Point-to-Point, Multipoint, Simplex, Half duplex and full duplex
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3 days
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2
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Discuss the two (2) types of transmission media
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5 days
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0
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1
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What is the significance of the protocol architecture
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5 days
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1
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Discuss some of the forces that have consistently driven the architecture and evolution of data communications
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Computer Networks
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0
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1
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What is differential encoding?
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5 days
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Computer Networks
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0
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1
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What is channel capacity
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5 days
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0
votes
1
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What is Attenuation in signals processing
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5 days
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0
votes
0
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What is Multiplexing in Signals Processing
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6 days
ago
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Computer Networks
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0
votes
0
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Why is Statistical Time Division Multiplexing more efficient than Synchronous Time Division Multiplexing
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6 days
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in
Computer Networks
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0
votes
0
answers
What is Synchronous Time Division Multiplexing (TDM)
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6 days
ago
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+1
vote
0
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Determine after how long in the network there will not be any signal (consider a jamming signal of 48 bits). Justify your answer.
asked
Jun 27
in
Computer Networks
by
anonymous
+1
vote
1
answer
TCP waits until it has received three duplicate ACKs before performing a fast retransmit. Why do you think the TCP designers chose not to perform a fast retransmit after the first duplicate ACK for a segment is received
asked
Jun 21
in
Computer Networks
by
(user.guest)
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vote
1
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Do the routers in both virtual-circuit networks and datagram networks use forwarding tables? If so, describe the forwarding tables for both classes of networks.
asked
Jun 20
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Computer Networks
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(user.guest)
+1
vote
1
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Imagine that a two-way handshake rather than a three-way handshake were used to set up a connection. In other words, the third message is not required. Are deadlocks now possible? Give an example or show that none exists
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Jun 10
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Computer Networks
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+1
vote
1
answer
NAT impact on peer to peer (p2p) networks
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Jun 8
in
Computer Networks
by
(user.guest)
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vote
1
answer
What is the difference between a group-shared tree and a source-based tree in the context of multicast routing?
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Jun 2
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Computer Networks
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+1
vote
1
answer
What is a multicast group
asked
Jun 2
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Computer Networks
by
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+1
vote
1
answer
Explain the Distance vector routing algorithm
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Jun 2
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Computer Networks
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(user.guest)
+1
vote
1
answer
What is link state protocol
asked
Jun 2
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
What does switching fabrics in networking refer to
asked
May 30
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
Describe some hypothetical services that the network layer can provide to a single packet, also to a flow of packets. State if any of your hypothetical services are provided by the Internet’s network layer? Are any provided by ATM’s CBR service model?
asked
May 30
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
What are the two most important network layer functions in a datagram network
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May 30
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
What is the solution to avoid the HOL problem occurs at router input port
asked
May 28
in
Computer Networks
by
anonymous
+1
vote
1
answer
Discuss optimal routing.
asked
May 24
in
Computer Networks
by
anonymous
+1
vote
1
answer
Briefly describe how Ethernet's exponential backoff works. What is one reason why Ethernet's exponential backoff might be better than randomizing retransmission attempts over a fixed-length time interval?
asked
May 23
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
Suppose that routers were subjected to conditions that might cause them to fail fairly often. Would this argue in favor of a VC or datagram architecture?
asked
May 23
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
What is a Wireless Access Point
asked
May 23
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
Discuss how a hierarchical organization of the internet has made it possible to scale millions of users
asked
May 23
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
What is a peer to peer network
asked
May 23
in
Computer Networks
by
(user.guest)
+1
vote
1
answer
What does software as a service refer to
asked
May 23
in
Computer Networks
by
(user.guest)
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