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Suppose Host A sends two consecutive TCP segments to Host B over a TCP connection. The first segment has sequence number 2 9 ; the

Suppose Host A sends two consecutive TCP segments to Host B over a TCP connection. The first segment has sequence number 29 ; the second has sequence number 61. How much data is in the first segment?
a.31 bytes.
b.32 bytes.
c.34 bytes.
d.35 bytes.
e.59 bytes.
Host A received a segment through a TCP connection from Host B with sequence number I532 and 150 bytes of data. Then Host A sends one segment with sequence number 1160 and 70 bytes of data to Host B. In this same segment the acknowledgment number is:
a.1681.
b.1682.
c.1531.
d.1532.
e. None of the above.
A UDP connection is identified by:
a. Source port number and destination port number.
b. Sourec and destination 1P addresses and port numbers.
c. Destination port number.
d. Source IP address and destination IP address.
e. None of the above.
The security attack in which the attacker is sending traffic prefending to a destination that does not exist is:
a. Spoofing,
b. Sniffing.
c. DOS.
d. DDos:
e. None of the above.
Layer 3 of the OSI model is:
a. Presentation.
b. Network.
c. Application.
d. Session.
e. Transport
Which of the following protocols uses TCP?
a. OSPF
b. ICMP.
c. RIP.
d. SMTP.
e. None of the above.
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