Where does a hub send data?
To all the systems connected to the hub
What uniquely identifies every NIC?
Media Access Control (MAC) address
What Windows utility do you use to find the MAC address for a system?
ipconfig /all
A MAC address is known as a(n) _______ address.
physical
A NIC sends data in discrete chunks called
frames
Which MAC address begins a frame?
Receiving system
A frame ends with a special bit called the frame check sequence (FCS). What does the FCS do?
Verifies that the data arrived correctly
Which layer of the TCP/IP model controls the segmentation and reassembly of data?
The transport layer
Which layer of the OSI seven-layer model keeps track of a systems connections to send the right response to the right computer?
The session layer
What topology requires a termination
Bus
What kind of topology is a Star-bus?
Hybrid
Fault-tolerant topologies
Star
Mesh
A term is used to describe the inter connectivity of network components?
Topology
Coaxial cables all have a(n) ______ rating.
Ohm
Coaxial cable
A single copper wire surrounded by layers of plastic insulation and sheathing; used mainly in cable television and cable Internet service. (RG-59)
A network topology that is connected nodes with a ring of cable?
Ring
A network topology that is mainly seen in wireless networks?
Mesh
What kind of connection is LC?
duplex fiber-optic
What is the most common category of UTP used in new cabling installations?
Cat 6
Ethernet hubs take an incoming packet and ___ it out to the other connected ports?
Repeat
What is appended to the beginning of the Ethernet frame?
A. MAC address
B. Length
C. Preamble
D. FCS
Preamble
What type of bus does 10BaseT use?
Star Bus Topology
What is the maximum distance that can separate a 10BaseT node from its hub?
100 meters
When used for Ethernet, unshielded twisted pair uses what type of connector?
RJ-45
What is the maximum number of nodes that can be connected to a 10BaseT hub?
1024
Which of the following is not true of crossover cables?
A. They are a type of twisted-pair cabling
B. They reverse the sending and receiving wire pairs
C. They are used to connect hubs
D. Both ends of a crossover cable are wired according the TIA/EIA 568B
D. Because one end is wired according to TIA/EIA 568B standard; and the other is wired according to TIA/EIA 568A standard
Which of the following connectors are used by 10BaseFL cable? (Select two)
A. SC
B. RJ-45
C. RJ-11
D. ST
A. SC
D. ST
Which networking devices can use the Spanning Tree Protocol (STP)?
A. Hubs
B. Media converters
C. UTP cables
D. Switches
D. Switches
What device directs packets based on MAC addresses?
D. Switch
With 100BaseT what is the max distance between the hub (or switch) and the node?
100 meters
What type of cable and connector does 100BaseFX use?
Multimode fiber with ST or SC connectors
How many pairs of wires do 10BaseT and 100BaseT use?
2
What standard does IEEE 802.3ab describe
1000BaseT aka Gigabit Ethernet
What is the big physical difference between 1000BaseSX and 100BaseFX?
1000BaseSX uses the SC connector exclusively
What is the maximum distancefor 1000BaseLX without repeaters?
5000 meters (5 kilometers)
What is a big advantage to using fiber-optic cable?
Fiber is not affected by EMI
How many wire pairs does 1000BaseT use?
4
What is the standard connector for the 10 GbE fiber standard?
There is no standard
What is the maximum cable length of 10GBaseT on Cat 6?
55
Which of the following should never be used in a structured cabling installation?
A. UTP
B. STP
C. Fiber-optic
D. Coax
Coax
Which of the following enables you to use multiple NICs in a computer to achieve a much faster network speed?
A. Bonding
B. Linking
C. SLI
D. Xing
A. Bonding
How many pairs of wires are in a Cat 5e rated cable?
4 wires
A _____________ organizes and protects the horizontal cabling in the telecommunications room.
patch panel