Chapter 3 - Ethernet Basics Flashcards
The ___ is unique to each individual NIC.
MAC Address
When extra “filler” data is needed in a packet, a/an _______ is added.
pad
A network connection that can send or receive, but not send and receive, a signal is called a ______ connection.
half-duplex
The ____ in an ethernet frame describes the protocol used in that frame.
type
Appended to the from of the frame is the ____.
preamble
A hub acted as a _______ in that it copied all incoming signals to every connected port.
repeater
Connecting switches incorrectly can create a ____, which can make the whole network stop working
bridging loop
The _____ enables Ethernet nodes to recognize receiving bad data.
frame check sequence (FCS)
___ had a maximum distance between node and hub of 100 meters, whereas _____ had a maximum distance of 2000 meters.
10BaseT, 10BaseFL
A(n) ____ can be used to interconnect different Ethernet types.
media converter
How are the connectors wired on a crossover cable?
A. One end is TIA/EIA 568A; the other end is TIA/EIA 568B.
B. Both ends are TIA/EIA 568A.
C. Both ends are TIA/EIA 568B.
D. One end is an RJ-45; the other end is an RG-6.
One end is TIA / EIA 568A; the other end is TIA / EIA 568B
What items make up the CSMA/CD system used in Ethernet networks? (Select three.)
A. Collision avoidance
B. Carrier sense
C. Multiple access
D. Collision detection
Carrier sense, Multiple access, Collision detection
What happens when two computers transmitted through a hub simultaneously?
A. Nothing happened.
B. The terminators prevented any transmission problems.
C. Their signals reflected back down the cable to their points of origin.
D. A collision occured.
A collision occurred
What is a group of nodes that can at any point send messages at the same time, causing a collision?
A. Collision domain
B. Ethernet
C. Fast Ethernet
D. Sneakernet
Collision domain
Which committee is responsible for Ethernet standards?
A. IEEE 803.2
B. IEEE 803.3
C. IEEE 802.2
D. IEEE 802.3
IEEE 802.3
What type of cabling did the first star-bus topology Ethernet networks use?
A. FTP
B. SFTP
C. STP
D. UTP
UTP
What is the purpose of a preamble in an Ethernet frame?
A. It gives the receiving NIC time to realize a frame is coming and to know when the frame starts.
B. It provides the receiving NIC with the sending NIC’s MAC address so communication can continue.
C. It provides error-checking to ensure data integrity.
D. It contains a description of the data that is to follow so the receiving NIC knows how to reassemble it.
It gives the receiving NIC time to realize a frame is coming and to know when the frame starts.
Which ports must you use to interconnect two switches with a crossover cable?
A. Regular ports on both switches.
B. Uplink port on one switch; regular port on the other switch.
C. Regular port on the root bridge switch; uplink port on the branch switch.
D. You can’t do this; you need to use a straight-through cable.
Uplink port on one switch; regular port on the other switch.
For what purpose is a crimping tool used?
A. To splice a 10BaseT cable with a 10BaseFL cable
B. To attach an RJ-45 connector to a UTP cable
C. To attach a 10BaseT cable to a media converter
D. To connect two switches together
To attach an RJ-45 connector to a UTP cable.
Which of the following is not a limitation on 10BaseT cable?
A. Maximum speed of 10 Mbps
B. Maximum distance between hub and node of 100 feet
C. Maximum of 1024 nodes per hub
D. Minimum Cat 3 or better UTP with RJ-45 connectors
Maximum distance between hub and node of 100ft.
Which of the following is not a limitation on 10BaseFL cable?
A. Maximum speed of 10 Mbps
B. Maximum distance between hub and node of 2000 meters
C. Maximum of 1024 nodes per hub
D. Minimum Cat 3 or better UTP with RJ-45 connectors
Minimum cat 3 or better UTP with RJ-45 connectors
Which part of an Ethernet frame enables a switch to send the frame only to the intended recipient?
A. Preamble
B. Destination MAC address
C. Source MAC address
D. Type
Destination MAC address
Which part of the frame will a NIC automatically expand to make the Ethernet frame up to the 64-byte minimum size?
A. Preamble
B. Type
C. Data
D. Pad
Pad
What feature of switches prevents the problem of bridging loops?
A. STP
B. TCP/IP
C. IEEE 802.3
D. UTP
STP
What feature of switches keeps track of which MAC address goes to each port?
A. FCS
B. SAT
C. STP
D. UTP
SAT
