QuestionQuestion

1. IP addresses.
a. What is the maximum number of hosts that can be addressed in IPv6 and IPv4?
b. Compute the binary, octal and hexadecimal representation of IP address 199.3.105.217.
c. Compute the binary, octal and decimal representation of MAC address AD-45-C3-F5-27-06.
d. Compute the octal, decimal and hexadecimal representation of the following IP in binary format: 01111010.01101101. 11011101. 00001101.

2. Write a brief description of the following protocols between TCP, UDP, RTP, HTTP, HTTPS, SSL, TLS protocols.

3. This question is based on the database introduced in the tutorial. You are required to write SQL statements to extract the information described.
a. Find all doctors and the number of patients they treated. Show only doctors’ full name and the number of patients.
b. Find the doctor with the maximum number of patients. Show only the doctor’s full name and the number of patients.
c. Find the doctor with the minimum number of patients. Show only the doctor’s full name and the number of patients.
d. Find all patients with no lab results. Show only patient full name.
e. Find the patients with the maximum and minimum number of labs. Show the patients full name and the number of labs in one report.

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1. IP addresses.
a. What is the maximum number of hosts that can be addressed in IPv6 and IPv4?
• IPv4 : 232
• IPv6 : 2128
b. Compute the binary, octal and hexadecimal representation of IP address 199.3.105.217.
• Decimal: 199.3.105.217
• Binary: 11000111 00000011 01101001 11011001
• Octal: 307.3.151.331
• Hexadecimal: C7.3.69.D9...
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