3. In the receiving computer, UDP receives a datagram from the __________ layer.
ID: 668407 • Letter: 3
Question
3. In the receiving computer, UDP receives a datagram from the __________ layer.
a. transport
b. network
c. physical
d. data link
e. application
5. Which of the following statements are not true about TCP? (Multiple answers)
a. TCP provides a process-to-process communication
b. TCP is a connection oriented protocol
c. The uses the silly window mechanism to provide flow control
d. A process is identified by the IP address of the sending computer
e. TCP segment sizes are allowed to vary
6. Which of the following statements is not true about rdt3.0?
a. Underlying channel is error free
b. Retransmits when ACK is not received within timeout period
c. Sequence number for the packets
d. Sender waits for ACK until timeout
7. Which of the following statements is not true about the sliding window mechanism used in TCP?
a. The size of the window is determined by the receiver.
b. The size of the window is used by the sender to determine the number of bytes that can be sent without an acknowledgment.
c. The size is determined at connection establishment and the same size must be used during the entire connection.
d. When an acknowledgment is received the window slides to allow the sender to send more bytes.
8. Which of the following statements is not true about the TCP opening and closing of connections?
a. TCP uses a three-way handshake to open a connection.
b. The sequence number is a random number selected by the sending computer.
c. The SYN bit is set to 1 in the last segment used to close a connection.
d. The first segment used to open a connection has the SYN bit set to 1.
10. A store and forward switching strategy is generally used in ______ switched network.
a. packet
b. circuit
c. asynchronous
d. synchronous
11. Transmission delay is the time for a signal to travel from source to destination.
a. true
b. false
12. Bandwidth is the data storage capacity in a router expressed in MBytes.
a. true
b. false
Explanation / Answer
3. In the receiving computer, UDP receives a datagram from the __________ layer.
a. transport
b. network
c. physical
d. data link
e. application
Answer: b. network
5. Which of the following statements are not true about TCP? (Multiple answers)
a. TCP provides a process-to-process communication
b. TCP is a connection oriented protocol
c. TCP uses the silly window mechanism to provide flow control
d. A process is identified by the IP address of the sending computer
e. TCP segment sizes are allowed to vary y
Answer: c. The uses the silly window mechanism to provide flow control
6. Which of the following statements is not true about rdt3.0?
a. Underlying channel is error free
b. Retransmits when ACK is not received within timeout period
c. Sequence number for the packets
d. Sender waits for ACK until timeout
Answer: a. underlying channel is error free
7. Which of the following statements is not true about the sliding window mechanism used in TCP?
a. The size of the window is determined by the receiver.
b. The size of the window is used by the sender to determine the number of bytes that can be sent without an acknowledgment.
c. The size is determined at connection establishment and the same size must be used during the entire connection.
d. When an acknowledgment is received the window slides to allow the sender to send more bytes.
Answer: c. the size is determined at connection establishment and the same size must be used during the entire connection.
8. Which of the following statements is not true about the TCP opening and closing of connections?
a. TCP uses a three-way handshake to open a connection.
b. The sequence number is a random number selected by the sending computer.
c. The SYN bit is set to 1 in the last segment used to close a connection.
d. The first segment used to open a connection has the SYN bit set to 1.
Answer: c. The SYN bit is set to 1 in the last segment used to close a connection
10. A store and forward switching strategy is generally used in ______ switched network.
a. packet
b. circuit
c. asynchronous
d. synchronous
Answer: a. Packet
11. Transmission delay is the time for a signal to travel from source to destination.
a. true
b. false
Answer: b. false
12. Bandwidth is the data storage capacity in a router expressed in MBytes.
a. true
b. false
Answer: b. false
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