Network+ Chapter 2 review

Which standards organization developed the OSI model?

ISO (International Organization for Standardization) developed the OSl model.

If the TCP protocol did not receive an acknowledgment for data it transmitted, what would it do?

If the TCP protocol did not receive an acknowledgment for data it transmitted it will ask you to re-transmit the data to the recipient.

Suppose that, at the receiving node, a frame's FCS doesn't match the FCS it was issued at the transmitting node. What happens as a result?

If, at the receiving node, a frame's FCS doesn't match the FCS it was issued at the transmitting node, the receiving node's Data Link layer requests a retransmission.

In which of the following situations would it be most desirable to use a connectionless Transport layer protocol?

It would be most desirable to use a connectionless Transport layer protocol when viewing a movie clip on the Web.

What type of address follows a hierarchical format?

Network addresses follows a hierarchical format.

Under what circumstances would the Transport layer use segmentation?

When the destination node cannot accept the size of the data blocks transmitted by the source node.

What are the sublayers of the Data Link layer as defined in the IEEE 802 standards?

The Logical Link Control sublayer and Media Access Control sublayer are the sublayers of the Data Link layer as defined in the IEEE 802 standards.

In which two layers of the OSI model do NICs belong?

The NICs belong to the Physical and Data Link layers.

Suppose your network is connected to another network via a router. Which OSI model layer provides the information necessary to direct data between the two networks?

The Network layer provides the information necessary to direct data between the two networks.

Which OSI model layer generates and detects voltage so as to transmit and receive signals carrying data?

The Physical layer generates and detects voltage so as to transmit and receive signals carrying data.

Which of the following standards organizations has established guidelines for installing network cables in commercial buildings?

(Telecommunications Industry Association)TIA/EIA (Electronic Industries Alliance)

Which technology does the IEEE 802.3 specification describe?

Ethernet LAN's

Which part of a MAC address is unique to each manufacturer?

The Block ID is the part of a MAC address that is unique to each manufacturer.

Which layer of the OSI model encapsulates Network layer packets?

The Data Link layer of the OSI model encapsulates Network layer packets.

Which of the following IEEE specifications pertains to wireless networking?

The IEEE (Institute of Electrical and Electronics Engineers) specifications that pertain to wireless networking is 802.11

Which OSI model layer is responsible for keeping open a communications path between your computer and the server when you dial in to a remote access server?

The Session layer is responsible for keeping open a communications path between your computer and the server when you dial in to a remote access server.

Which layer of the OSI model is responsible for issuing acknowledgments (ACKs)?

The Transport Layer is responsible for issuing acknowledgments (ACKS).

What is the purpose of the trailer field added to a frame in the Data Link layer?

The purpose of the trailer field added to a frame in the Data Link layer is to mark the end of a frame.

Which of the following would be found in a Data Link layer header?

The source's physical address would be found in a Data Link layer header.

You have just installed a new NIC in your computer and see the following stamped on it: 000A5E1A8DA2. This unique identifier is an example of what kind of address?

This unique identifier is an example of the MAC address.