The transport layer of the OSI is responsible for dialog control and synchronization.

• True

• False

The presentation layer of the OSI is responsible for translation, compression and encryption.

• True

• False

The network layer of the OSI is responsible for the delivery of a message from one process to another.

• True

• False

TCP is a network application protocol in a TCP/IP suite that govern the way a web server and a web client interact.

• True

• False

Ping is an Internet service that operate through Internet Control Message Protocol (ICMP).

• True

• False

Which of the following is Class C IP address?

• 12.0.0.1

• 168.172.19.39

• 172.15.14.36

• 192.168.24.43

The TCP/IP has four layers. Which layer of the TCP/IP is equivalent to the Network layer of the OSI model?

• Application

• Host-to-Host

• Internet

• Network Access

Which class of IP address provides a maximum of only 254 host addresses per network ID?

• Class A

• Class B

• Class C

• Class D

Answer explanation

Class C network address has only 8 bits for defining hosts: 2⁸ - 2 = 254.

Which of the following are TCP/IP protocols used at the Application layer of the OSI model?

1. IP 2. TCP 3. HTTP 4. FTP 5. TFTP

• 1 and 3

• 1, 3 and 5

• 3, 4 and 5

• All of the above

What is the address range of a Class B network address in binary?

• 01xxxxxx

• 0xxxxxxx

• 10xxxxxx

• 110xxxxx