Networking I - Quiz 5

Modern Ethernet networks are based on the star topology. True False

The smallest LANs do not have a backbone. True False

A serial backbone is the simplest kind of backbone. True False

The most popular method for connecting nodes on a network is circuit switching. True False

A network's access method is its method of controlling how network nodes access the communications channel. True False

A physical topology ____. specifies device types depicts a network in broad scope specifies connectivity methods specifies addressing schemes

Without ____, a bus network would suffer from signal bounce. hubs repeaters terminators jamming

In a ring network, each workstation acts as a(n) ____ for the transmission. repeater amplifier terminator manager

A complex combination of topologies is known as a ____ topology. mixed hybrid compound mulitpart

The most common logical topologies are ____ and ring. bus star wired hybrid

A ____ is simply a linked series of devices. star star-wired ring ring daisy-chain

In packet switching, when packets reach their destination node, the node ____ them based on their control information. disassembles deletes reassembles separates

Collectively, MPLS labels are sometimes called a ____. header shim frame title

All Ethernet networks, independent of their speed or frame type, use an access method called ____. CSMA CSMA/DC CSAM/CD CSMA/CD

A ____ occurs when two transmissions interfere with each other. jam collision carrier sense multiple access event

On an Ethernet network, a(n) ____ is the portion of a network in which collisions occur if two nodes transmit data at the same time. collision domain crash domain interference domain duplicate domain

1000Base-T is a standard for achieving throughputs ____ times faster than Fast Ethernet over copper cable. 2 5 10 100

The 10GBase-T standard is considered a breakthrough for transmitting 10 Gbps over ____ medium. coaxial twisted pair fiber atmosphere

The most common 1-Gigabit Ethernet standard in use today is ____. 1000Base-T 1000Base-SX 10GBase-SR 1000Base-LX

1000Base-SX has a maximum throughput of ____. 1 Gbps 10 Gbps 100 Gbps 1000 Gbps

The 10-gigabit fiber optic standard with the shortest segment length is ____. 10GBase-T 10GBase-SR 10GBase-LR 10GBase-ER

In the 10GBase-LR standard, the L stands for ____. long reach LAN long ring little ring

Given their long-distance capabilities, 10GBase-ER and 10GBase-EW are best suited for use on ____. VANs MANs LANs WANs

Within Ethernet frame types, the ____ signals to the receiving node that data is incoming and indicates when the data flow is about to begin. FCS header preamble frame

Together, the FCS and the header make up the ____-byte "frame" for the data. 15 18 21 24

The Ethernet II frame type contains a 2-byte ____ field that differentiates it from other Ethernet frame types. data length source type