Exam 2: Networks and the Internet

No protocols operate at the physical layer of the OSI model.

Which device can connect many computers and sends data only out of one port?

Which TCP/IP protocol operates on port 80 and displays web pages?

The TCP protocol works at the network layer of the OSI model.

The first four bytes of the MAC address identify the vendor.

Which device can relay packets from one network to another and is usually programmable?

The session layer of the OSI model provides the mechanism to manage the dialogue between end-user application processes.

Which device is used to boost a signal?

If an IP address has the number 191 in the first octet,it is a class ______ address.

Which TCP/IP protocol operates on ports 20 and 21 and is used for transferring files between computers?

Which TCP/IP protocol operates on port 53 and translates URLs into Web addresses?

The name you type into a browser's address bar,such as www.microsoft.com,is known as the IP locator.

If an IP address has the number 192 in the first octet,it is a class _______ address.

The IP command-line command to determine your computer's IP address,subnet mask,and default gateway is ping.

The notation used to perform variable-length subnet asking for IP addresses is CIDR.

What is the binary equivalent of the decimal number 240?

An IP address consists of four numbers,separated by dots.Each number is called a(n)________.

MAC addresses are unique addresses for each NIC.

A host is a machine with data on it,to which you can connect.

Which device can connect many computers and sends packets out every port?