Computer Knowledge Assessment Test

182 Lesson 5
Knowledge Assessment
Fill in the Blank
Complete the following sentences by writing the correct word or words in the blanks provided. 1. A software routine, which also acts as a filter that blocks certain type of incoming and outgoing traffic, while enabling other types is called a . 2. The _ tool provides a central access point for all of the network controls and connections on a computer running Windows 7. 3. A device that connects one network to another is called a . 4. The most common method for illustrating the operations of a networking stack is the , which consists of layers. 5. Protocols that do not guarantee delivery of their data, but do operate with a very low overhead that conserve network bandwidth are called . 6. The Windows 7 command-line utility that can tell you if the TCP/IP stack of another system on the network is functioning normally is called . 7. The Windows 7 command-line utility that enables you to generate DNS request messages and then transmit them to specific DNS servers on the network is called . 8. Most networks use to dynamically assign addresses and configure computers to use them.
9. The Windows 7 utility that displays a list of the routers currently forwarding packets to a particular destination is called .
10. The top and bottom layers of the OSI model are called the and layers.
True / False
Circle T if the statement is true or F if the statement is false.
F 1. The purpose of Network Diagnostics is to display error messages only.
F 2. Transport layer protocols are not concerned with addressing packets to the correct system.
F 3. The Network Map utility uses a new protocol called Link Layer Topology Discovery (LLTD) to discover information about the network and the devices attached to it.
F 4. The protocols that Windows uses by default at the network and transport layers are collectively called TCP/IP.
F 5. Home and work computers have Network Discovery turned on, and public com-puters have it turned off.
F 6. There are two basic types of port numbers: ephemeral port numbers and well-known port numbers.
F 7. A Windows 7 computer that is connected to a LAN has a hardware address and a computer that is connected to the Internet has an IP address.
F 8. The only two layers of the OSI reference model that do not have individual proto-cols associated with them are the transport layer and the session layer.
F 9. Because the configuration of the Internet is constantly changing, the only way you can know for certain what route packets are taking to a specific destination is to use Tracert.exe.
F10. The IPv6 addresses Windows 7 computers use at die network layer are six-byte hexa-decimal sequences, hard coded into each network interface adapter by the manufacturer.