ISDS 4120 Quiz 2
Which of the following can increase latency on a network?
Adding 50 meters to the length of the network
The goal of ____ is to establish international technological standards to facilitate the global exchange of information and barrier free trade.
ISO
Which standards organization developed the OSI model?
ISO
. ____ oversees the IAB (Internet Architecture Board).
ISOC
____ oversees the IAB (Internet Architecture Board).
ISOC
Which statement accurately describes the OSI model?
It describes a theoretical representation of what happens between two nodes communicating on a network
What is the purpose of cladding in a fiber-optic cable?
It reflects the signal back to the core.
Which Data Link sublayer manages flow control?
LLC
What are the sublayers of the Data Link layer as defined in the IEEE 802 standards?
Logical Link Control sublayer and Media Access Control sublayer
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?
MAC address
In which OSI model layer does IP operate?
Network
An IP address is an example of what type of address?
Network layer
At what OSI model layer do protocols manage data delivery priorities?
Network layer
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?
Network layer
In which OSI model layer do hubs operate?
Physical
In which OSI model layer(s) do NICs operate?
Physical and Data Link
In which two layers of the OSI model do NICs belong?
Physical and Data Link layers
Which OSI model layer generates and detects voltage so as to transmit and receive signals carrying data?
Physical layer
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 code
In which of the following situations would it be most desirable to use a connectionless Transport layer protocol?
When viewing a movie on the Web
Which technology does the IEEE 802.11 specification describe?
Wireless networks
Standards define the ____ performance of a product or service.
minimum acceptable
One of the most common transmission flaws affecting data signals is ____.
noise
The ____ is a fixed number associated with a device's NIC
physical address
The ____ is a fixed number associated with a device's NIC.
physical address
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?
. MAC address
What is the purpose of the trailer field added to a frame in the Data Link layer?
. To mark the end of a frame
A wave with which of the following frequencies would have the longest wavelength?
100GHz
Which IEEE standard describes specifications for wireless transmissions?
802.11
Which IEEE standard describes Ethernet?
802.3
You are configuring clients to communicate over an Ethernet LAN. Which of the following IEEE specifications will identify which frame type your client should use?
802.3
In which of the following network links might you use SC connectors?
A fiber-optic connection between a server and router.
Which OSI model layer initiates the flow of information?
Application
The serial interface on the back of the connectivity device is often labeled "____."
Console
Which layer of the OSI model encapsulates Network layer packets?
Data Link layer
Which technology does the IEEE 802.3 specification describe?
Ethernet LANs
You are helping to install a cable broadband system in your friend's home. She wants to bring the signal from where the service provider's cable enters the house to a room on another floor, which means you have to attach a new cable to the existing one. What type of cable should this be?
RG-6
____ is the process of reconstructing segmented data.
Reassembly
Which of the following network transmission media offers the highest potential throughput over the longest distances?
SMF
_____ is a unit of data that results from subdividing a larger protocol data unit.
Segment
Transport layer protocols break large data units into ____.
Segments
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?
Session layer
What part of a cable protects it against environmental damage?
Sheath
Which of the following standards organizations has established guidelines for installing network cables in commercial buildings?
TIA/EIA
Which part of a MAC address is unique to each manufacturer?
The block ID or OUI Correct
Which of the following would be found in a Data Link layer header?
The source's physical address
In which OSI model layer does TCP operate?
Transport
Which layer of the OSI model is responsible for issuing acknowledgements (ACKs)?
Transport layer
Which term describes the hardware that makes up the enterprise-wide cabling system?
cable plant
Which type of protocol is useful when data must be transferred quickly?
connectionless
The points where circuits interconnect with other circuits is known as ____.
cross-connect facilities
Ethernet relies on which of the following transmission types?
full-duplex
Many network problems can be traced to poor cable ____ techniques.
installation
The process of determining the best path from Point A on one network to Point B on another is known as ____.
routing
. Transport layer protocols break large data units into ____.
segments
Which term identifies a room containing connectivity for groups of workstations in its area?
telecommunications closet
Each network node has ____ types of addresses
two