WorksheetsTCP Performance in Wireless Networking
Total questions: 14
Worksheet time: 12mins
Which of the following statements is true about the relationship between frequency and range of wireless signals?
(A) Higher frequencies have a shorter range and can carry less data.
(B) Higher frequencies have a longer range and can carry more data.
(C) Lower frequencies have a shorter range and can carry less data.
(D) Lower frequencies have a longer range and can carry more data.
What does the snooze state in TCP-F involve?
A) Continuing data transmissions at a reduced rate.
B) Pausing the retransmission timer.
C) Completely stopping data transmissions temporarily.
Which of the following is a challenge specific to wireless systems, not typically encountered in wired systems?
A) Limited bandwidth
B) Physical connection constraints
C) Immunity to signal interference
D) Signal attenuation over long distances
Which of the following is a characteristic of wireless systems compared to wired systems?
A) Consistent and higher transmission rates
B) Immunity to signal interference
C) No limitations on transmission distance
D) Requirement of physical connections
Which of the following is a challenge specific to wireless systems?
A) Unlimited transmission distance
B) Immunity to signal interference
C) Higher transmission rates than wired systems
D) Susceptibility to unauthorized access
Draw a diagram illustrating the signal propagation in a wireless communication system, showing the transmission from a transmitter to a receiver. Include the key components involved in the process.
Which of the following factors contributes to the hidden terminal problem in wireless LANs?
A) Physical obstructions
B) Wired connections
C) Signal amplification
D) Data encryption
Why does CSMA/CD not work well in wireless LANs?
A) Limited bandwidth
B) Susceptibility to unauthorized access
C) Hidden terminal problem
D) Immunity to signal interference
What is multipath propagation?
A) The reflection of radio signals off solid objects
B) The interference between multiple wireless devices
C) The blurring of signals during data transmission
D) The process of signal fading in wireless communication
Multipath propagation occurs when radio signals reflect off (a) objects, creating multiple paths of different lengths between a sender and receiver.
Which of the following is a design goal of a transport layer protocol for wireless ad-hoc networks?
A) Maximizing induced traffic
B) Inducing throughput unfairness
C) Efficient and reliable data transmission
D) Ignoring power and bandwidth constraints
What does a transport layer protocol for wireless ad-hoc networks aim to achieve in terms of fairness?
A) Inducing throughput unfairness
B) Ensuring power and bandwidth constraints
C) Managing dynamic topologies
D) Promoting fairness in resource allocation
What is the purpose of an RFN (Route Failure Notification) packet in Feedback-based TCP (TCP-F)?
A) To notify the receiver of a TCP session about a path break.
B) To update the routing table of intermediate nodes.
C) To notify the sender of a TCP session about a path break.
What happens when an intermediate node receiving an RFN packet has an alternate path to the destination?
A) It switches to the alternate path immediately.
B) It waits for the original path to be repaired.
C) It drops the RFN packet and ignores the path break.
