MIS 3317 CH5

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

If you double the number of states, you can transmit ________ more bit(s) per clock cycle.

1

What is 9 hex in binary?

1001

To transmit five bits per clock cycle, you must have ________ states.

32

How many wires are there is a UTP Ethernet cord?

8

The 802.11ac Wi-Fi standard uses 256 states. How many bits can it send per clock cycle?

8

ARP cache poisoning is ________.

A MAN-IN-THE-MIDDLE Attack

RSTP

Both can increase reliably and was created to break accidental loop

Ethernet addresses were formerly called________ addresses

MAC

Modal dispersion limits transmission distance in ________.

Multimode fiber

What is the quality designator for multimode optical fiber?>

OM

Ethernet is a single-network standard, so it is governed by ________ standards.

Physical and data link layer

UTP categories rate the ________ of UTP cabling.

Quality

What is the path that a frame travels through an Ethernet network?

a data link

Which UTP quality levels are needed to send signals 100 meters at 10 gigabits per second?

category 6A

In optical fiber, light travels through the ________.

core

The path a message takes from the source host to the destination device in an Ethernet network is a ________.

data link

Using RSTP to provide backup links in Ethernet ________.

is challenging

The transmission links that connect pairs of devices are ______.

physical links

Fiber that has a core diameter of 8.3 microns is ________.

singe-mode fiber

850 nm multimode fiber is used in LANs ________.

to keep cost low

________ links connect switches to other switches

trunk

Cat 5e and CAT 6 wiring can carry Ethernet traffic 100 meters up to ________.

1Gbps

In binary signaling, there is (are) ________ state(s)

two

Two switches that are 200 m apart at a speed of 20 Gbps should be connected using ________.

10GBASE-SR with bonding

What is F hex in binary?

1111

What is binary 0000 in hex?

8

To prevent an unauthorized user from sending supervisory commands to switches, companies use ________.

802.1AE

After an ARP cache poisoning attack, the ARP cache gives the ________.

EUI-48 address of the router the MITM attacker

The ability to transmit in two directions simultaneously is ________.

Full duplex communication

Optical fiber cords typically have two fiber strands. This is done to allow _______.

Full-duplex operation

In Ethernet, switches are organized in a ________.

Hierarchy

4-pair UTP terminates in a(n) ________ connector.

RJ-45

To manage their Ethernet networks, companies rely on ________.

SNMP

Which of the following provides security in Ethernet?

VLANs

The distance between two corresponding points in adjacent cycles is the ________.

Wavelength

The strength of a wave is its ________.

amplitude

Physical layer standards govern ________.

both signaling and physical connectors

________ describe light entering a fiber's core at different angles.

different modes

The messages that travel from the source host to the destination host are __________, forwarding devices are __________, and Ethernet uses __________ instead of IP addresses

frames; switches; EUI-48 data link layer

Ethernet became the dominant LAN technology because of ________.

low cost

________ occurs when the light energies of two pulses arrive at the far end at overlapping times.

modal dispersion

Which of the following is used most often in LANs for fiber transmission links?

multimode fiber

EUI-48 addresses in expressed in hexadecimal notation if used by ________.

neither switches or routers

At what layer is the 100BASE-TX standard?

physical

Ethernet signaling standards govern _________ layer transmission.

physical

Ethernet standards are specified at the ________ layer.

physical

The two tag frames provide information about ________.

priority

Ethernet forwarding devices are ________.

switches

When a user attempts to plug into an Ethernet switch protected by 802.1X, ________.

the user will be required to authenticate himself or herself


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