Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
39 Cards in this Set
- Front
- Back
|
ARP
Address Resolution Protocol |
A Network layer protocol used to convert a numeric IP address into a physical address, such as a MAC address Used for direct or indirect routing.
|
|
|
bind
|
The act of ataching a networking protocol to a network adapter such as NIC.
|
|
|
datagram
|
A packet at the Network layer of the OSI/RM.
|
|
|
frame
|
A scrollable region in which pages can be displayed; a single element of a frameset. Each frame has its own URL. 2) A packet at the Data Link layer, used to travers an Ethernet network.
|
|
|
connection-oriented protocols
|
Require that a host establish a connection or session, before they transfer information.
|
|
|
connectionless or stateless protocols
|
Rely on best effort technology that sends the informatn to the network, hoping that the data wll reach the intended system.
|
|
|
routable protocols (TCP/IP and UDP/IP)
|
Essential tools for creating the Internet.
|
|
|
non-routable protocols
|
Include NetBIOS, SNA. Nonroutable because they use predefined routes (static routes) that cannot be changed.
|
|
|
UDP
User Datagram Protocol |
A connectionless protocol that, like TCPm runs on the top of IP networks and also works at Layer 4, the TRansport layer of the OSI/RM.
|
|
|
ARP
Address Resolution Protocol |
Protocol used to convert a numeric IP address nto a physical address, such as a MAC address.
|
|
|
open standard
|
An open standard is based on specifications that are available to anyone.
|
|
|
switching hub
|
Works at layer 1; it is a faster version of a traditional hub.
|
|
|
LAN switch
|
Works at layer 2, the Data Link laer, to filter and forward packets to network segments based upon their MAC addresses.
|
|
|
Layer-4 switch
|
Looks at the port information conained in the TCP or UDP header.
|
|
|
router switch
|
Works as a regular switch does, but also has many features of a router.
|
|
|
bind
|
Whenever you use a networking protocol such as TCP/IP, you must attach or bind it to your NIC within your operating system. By binding the network rotocol, you allow the computer to use the protocol in network communications.
|
|
|
Open Systems Inerconnectin Reference Model (OSI/RM)
|
A seven-layer model used to break down the many tasks involved in moving data from one host to another.
The OSI/RM has three practical functions: 1. The model gives developers necessary, universal concepts so they can develop and refine networking protocols. 2. The model explains the framework used to connect heterogeneous systems. 3. The model describes the process of packet creation. |
|
|
header
|
Each layer adds its own information called a "header" to the packet. This information enables each layer to communicae with the othes and also allows he receiving computer to process the information.
|
|
|
Which of the OSI/RM layers is responsible for preparing data so it can be sent over a cable?
A. Transport B. Data Link C. Physical D. Presentation |
Layer 2, DATA LINK layer, prepares data to be placed on a transmission medium such as a cable.
|
|
|
Layer 3 of the OSI/RM provides services that most closely match which of the following?
A. Transmits bits on a wire. B. Provides an end user inerface to network data. C. Organizes data into packets. D. Converts data into readable text format. |
Layer 3 (Network Layer), organizes data into packets.
|
|
|
Which of the following statements best describes the OSI/RM?
A. The model describes how to design network topologies. B. The model describes key concepts used in networking protocols. C. The model contains standards fo network operating systems. D. The model explains how to configure a web server. |
B. The model describes key concepts used in networking protocols.
|
|
|
What does the acronym OSI/RM mean?
|
Open Systems Interconnection Reference Model
|
|
|
Which one of the following choices is not part of the packet structure?
A. Trailer B. Data C. Certificate D. Header |
C. There is no certificate portion to the packet.
|
|
|
TCP is an example of what kind of protocol?
|
Routable and stateful.
|
|
|
What best describes a non routable protocol?
|
Nonroutable protocols use static routes to send nformation from one network node to another.
|
|
|
Which of he following choices is an appropriate use for the User Datagram Protocol?
A. Transmitting FTP files B. Sending e-mail messages C. Web bowsing D. Streaming audio |
D. UDP does not provide error-corection services. If one or mre packets arrive in a damaged state, the computer will simply discard them.
|
|
|
Which of the following statements about TCP/IP and the OSI/RM is the most correct?
A. IP works at the Network layer, while TCP works at the Transport layer. B. IP works at the Data Link layer, while TCP works at the Presentation layer. C. IP works at the Transport layer, while TCP works at the Session layer. D. IP works at the Application layer, while TCP works at the Data Link layer. |
A. IP works at Layer 3, the Network layer, and provides IP address and packet routing services to TCP.
|
|
|
User Datagram Protocol was originally developed to provide which one of the following services?
A. Error-free file transfer B. Rapid delivery of short network messages. C. E-mail D. Videoconferencing |
B. Rapid delivery of short network messages.
|
|
|
Which of the followingprotocols map numeric IP addresses to physical IP addresses on a LAN?
A. DNS B. ARP C. TCP D. IP |
B. Address Resolution Protocol
|
|
|
According to the OSI/RM, the function of Novell's SPX networking protocol is best compared to which of the following network protocols?
A. IP B. SNA C. TCP D. Ethernet |
C. TCP
|
|
|
Which one of the following protocols maps numeric IP addresses to physical IP addresses on a LAN?
A. DNS B. ARP C. TCP D. IP |
B. Address resolution protocol
|
|
|
According to the OSI/RM, the function of Novell's SPX networking protocol is best compared to which of the following network protocols?
A. IP B. SNA C. TCP D. Ethernet |
C. TCP
|
|
|
NetBIOS belongs to which layer of the OSI/RM?
A. Network B. Transport C. Data Link D. Session |
D. NetBIOS works at the session layer to identify computers on a LAN.
|
|
|
Aimee is trying to trace her path of a packet from her computer through her LAN and to the Internet. Which of the following choices describes a sequence of hardware devices that could be used on her LAN?
A. Hub, media, patch panel. B. Patch panel, media, repeater, NIC C. NIC, media, router, CSU/DSU D. CSU/DSU, hub, media, router. |
C. NIC, media, router, CSU/DSU.
|
|
|
How many characters can the Unicode standard handle?
A. 128 B. 256 C. 65,000 D. 1 million |
C. 65,000
|
|
|
Which of the following statements about EBCDIC is not correct?
A. EBCDIC maps uppercase characters to a numbering system. B. EBCDIC is mapped to the Layer 6 of the OSI/RM. C. EBCDIC maps lowercase characters to a numbering system. D. EBCDIC is mapped to the Presentation layer of the OSI/RM. |
C. EBCDIC is an older, Layer 6 standard that maps uppercase characters, numbers, and a few symbols to a numbering scheme.
|
|
|
On Ethernet networks, what is the DLC address usually called?
A. IP address B. MAC address C. DNS entry D. E-mail address |
B. The Data Link Control is called the Media Access Control address in the IEEE 802.2 networking standards.
|
|
|
Which layer of the OSI/RM corresponds most closely to an e-mail client?
A. Network B. Application C. Session D. Data Link |
B. E-mail client applications work at the Application layer, Layer 7 of the OSI/RM.
|
|
|
Which of the following choices describes the OSI/RM layer at which a brouter operates?
A. Layers 5 and 6 B.Layers 2 and 3 C. Layers 3 and 4 D. Layers 1 and 2 |
B. A brouter is a combination of a router and a bridge. Thus, it works at the Data Link and Network layers of the OSI/RM, Layers 2 and 3. The bridge function connects two or more network segments at Layer 2. The router function works at Layer 3.
|
