Shared Flashcard Set

Details

Networking
Exam
43
Computer Networking
Undergraduate 1
07/21/2009

Additional Computer Networking Flashcards

 


 

Cards

Term
What best descibes the function of the network medium? 
Definition
It provides the physical connection between networked computers.
Term
What type of network connects local area networks (LANs) in distant locations?
Definition
WAN
Term
What type of network is typically used over copper cable?
Definition
Electric
Term
What statement describes the process of data encapsulation?
Definition
Protocols within the stack perform data encapsulation by adding a header- and, in some cases, a footer- to the information recieved from an upper-layer protocol.
Term
Identify the layer of the open systems interconnection(OSI) model that controls the transmission, reception, and addressing of frames. Also identify the channel access method that Ethernet uses.
Definition
Data-link layer, token passing
Term
What organizations are responsible for developing the 802 series of standards for data-link layer and physical layer protocols?
Definition
Institute of Electric and Electronics Engineers(IEEE)
Term
What layer of the OSI defines the medium, network interfaces, connecting hardware, and signaling methods used on a network?
Definition
Physical
Term
What layer of the OSI model is responsible for the logical addressing of end systems and the routing of datagrams on the network?
Definition
Network
Term
What layer of the OSI model typically provides either conectionless or connection-oriented services to applications
Definition
Transport
Term
What layer of the OSI model is responsible for the translation and formatting of information?
Definition
Presentation
Term
What are the layers of the OSI model in order?
Definition

Application

Presentation

Session

Transport

Network

Data-Link

Physical

Term
You have been hired to implement a network. The client has a small number of users in a single office location. The client wants use a topology that runs 100 megabits per second and allows new systems to be added easily to the network. The client is concerned with cost and maintenance issues, such as cable failures that would cause the network to go down. Given this scenario, What would you recoment the client?
Definition
A star topology using twisted-pair cable
Term
What type of cable and connector is used to attach a television set to a cable television(CATV) network
Definition
A coaxial cable and an F-type connector
Term
What cable type is used for thin Ethernet network segments?
Definition
RG-58
Term
What purpose do the twists serve in twisted-pair cabling?
Definition
They prevent crosstalk from adjacent pairs and limit the effects that EMI has on the signal being carried over the cable.
Term
What type of tool do you use to connect bulk cable runs to wall plates and patch panels?
Definition
A punchdown block tool
Term
You have been hired by a corporation to design the cabling for their network. The corporation just moved in to two different floors of an older building. The building has existing category (CAT3) cable. Your client wants two seperate local area networks (LANS), one on each floor, with  backbone network connecting them. Your client wants a 100-megabit-per-second(Mbps) data rate for each LAN but plans on migrating to 1,000 Mbps in the future. The two networks are approximately 600 meters apart. Which of the following solutions best meets the needs of this corporation?
Definition
Install CAT5e or CAT6 cable for LANs. These cables run at 100 Mbps and provide migration path to 1000 Mbps. Use Multimode fiber-optic cable for the backbone network.
Term
You have been hired by a corporation to design its network. The corporation just moved into one floor of an older building. The building has exsisting CAT3 cable. The previous occupants had a 10-megabit-per-second (Mbps) local area network (LAN) Your client does not have the money to upgrade the cable at this time but wants to use a data rate of 10 Mbps and 100 Mbps. Which solution would you suggest to best meet the needs of your client?
Definition
Advise the client that they can achieve the 100-Mbps data rate desired by keeping the exsisting CAT3 cabling, because it supports the 100Base-T4 Fast Ethernet standard.
Term
What topologies is not used in LANs?
Definition
Mesh
Term
Which topology is used primarily to provide redundant, fault-tolerant paths through an internetwork
Definition
Mesh
Term
What cable connector type is is not used with fiber-optic cable?
Definition
F-type
Term
Which communication method requires seperate channels for stimultaneously transmitting and recieving data without collisions?
Definition
Full-duplex
Term
What best decribes the bus mastering feature?
Definition
It offloads processor cycles by taking over the bus arbitration process when data is being transferred from system memory to a network interface card(NIC).
Term
Which feature cn network interface adapters use to automatically configurethemselves to run at an agreed-apon speed and duplex mode?
Definition
Autonegotiation
Term
What protocols do enterprise networks use to track the performance of critical compoments?
Definition
SNMP
Term
On microsoft windows operating systems(Windows 95 and later), what is the primary tool that you use to manage and configure a network interface adapter, and where it is located?
Definition
The devise manager utility, accessed  from the system properties dialog box in control panel.
Term
You have a network that consists of 3 VLANs defined on all of the switches within the Network. VLAN 10 is the sales VLAN, VLAN 20 is the marketing VLAN, and VLAN 30 is the Accounting VLAN. Users complain that they can't communicate with anyone outside of their own VLAN. What is the problem, and what must you do?
Definition
VLANs are limited to data-link layer communications only. To allow communication VLANs, you must add a router or layer 3 sitch to the network and configure it to route between the VLANs.
Term
Which device enables two computers to communicate when they are using different protocols at each layer of the OSI reference model.
Definition
A gateway
Term
In  the 100base-x or fast ethernet specification, what function of the fast link pulse(FLP) signals sent by hubs and network interface adapters is not provided by the normal link pulse (NLP) signals used by standard Ethernet
Definition
To advertise the capabilities of the interface adapters and negociate the speed and duplex mode of the link.
Term
What is the IEEE standard for 100-megabit-per-second(Mbps) networks using baseband signaling over 4 twisted pairs?
Definition
100Base-T4
Term
Which sublayer is defined i the IEEE 802.2 standard?
Definition
Logical Link Control (LLC)
Term
What is the Minimum legal frame size for Ethernet?
Definition
64 bytes
Term
Which term best descibes the alternating clocking pattern of 1s and 0s sent prior to frame transmission?
Definition
Preamble
Term
Which field within a token ring frame identifies a free token?
Definition
Access Control
Term
What is the name for FDDI devices thatconnect to both the primary and secondary rings?
Definition
DAS
Term
You are a network administrator who has recently deployed 20 new laptop computer's to your company's outside sales force. These salespeople do not have desks in the office, but when they are not on the road they often come to the site and work wherever they can find free space. As a result, you have decided to deploy wireless local area network(WLAN) so that the salespeple can connect to the company network any location in the office and access resourses such as database and e-mail servers. Which wireless scenarios would make this possible?
Definition
Install an infrastructure network with a wireless access point
Term
Hardware addresses with 6 bytes are divided into two parts. Each part is 3 bytes in length. What statement describes these values?
Definition
The first 3 bytes of a MAC address contain the OUI, and the second 3 must be unique for each device on the network.
Term
What 10 gigabit Ethernet specifications calls for the use of copper cable?
Definition
10GBase-CX4
Term
A wireless access point(WAP) enables computers equipped with wireless network interface adapters to function in which of the following topologies?
Definition
Infrastructure
Term
What statement about fragmentation and reassembly of network layer datagrams is true?
Definition
A source end system or an intermediate system can perform fragmentation, and only the destination end performs the reassembly of datagrams.
Term
The default mask for a class B network is 255.255.0.0 How many subnet bits do you need in order to define 600 subnets with 55 hosts per subnet, and what is the new subnet mask for the network?
Definition
10 subnet bits with a mask of 255.255.255.192
Term
Which protocol is a connectionless network layer protocol in the Appletalk suite?
Definition
DDP
Term
If you have a Class B network with an IP address of 172.16.168.2 and a mask of 255.255.240.0, what is the network address of the subnet to which the IP address belongs?
Definition
172.16.168.0
Supporting users have an ad free experience!