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Network and Communication Lec

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

It is an optical fiber Gigabit Ethernet standard for operation over multi-mode fiber using a 770 to 860 nanometer, near-infrared (NIR) light wavelength.

a)

1000BASE-T

b)

1000BASE-LX

c)

1000BASE-SX

d)

1000BASE-CX

2.

Which of the following Gigabit Ethernet media has a Category 6 -UTP cable?

a)

1000BASE-T

b)

1000BASE-LX

c)

1000BASE-SX

d)

1000BASE-CX

3.

Which of the following Gigabit ethernet media has a 10-micron single-mode fiber?

a)

1000BASE-T

b)

1000BASE-LX

c)

1000BASE-SX

d)

1000BASE-CX

4.

It is a line code in which the encoding of each data bit is either low then high or high then low for equal time. 

a)

Network code

b)

Terminal code

c)

Manchester code

d)

Binary code

5.

1000BASE-TX operated over only two of the four pairs in the cable and requires __________ cabling.

a)

CAT5e

b)

CAT5

c)

CAT6

d)

CAT4

6.

Which of the following parameters is not applicable for a 10-Gbps Ethernet operation?

a)

slot time

b)

bit time

c)

interframe spacing

d)

minimum frame size

7.

It is designed to operate over a 4-pair UTP cable and supports full-duplex data transfer at 1000Mbps. 

a)

1000BASE-16

b)

1000GBASE-G

c)

1000BASE-T

d)

100BASE-TX

8.

In a network using (OSI) architecture, the ____________ is the portion of the physical layer that interfaces with the data link layer's medium access control (MAC) sublayer, performs symbol encoding, transmission, reception and decoding and, performs galvanic isolation.

a)

static prompting sublayer

b)

directional sublayer

c)

logical signaling sublayer

d)

physical signaling sublayer

9.

Which of the following is NOT a benefit of a Gigabit Ethernet on Fiber?

a)

excellent distance characteristics

b)

noise immunity

c)

can connect coaxial ports

d)

no grounding potential problems

10.

This version uses two strands of multi-mode optical fiber for receive and transmit.

a)

1 Gbps Ethernet over Coaxial

b)

100 Mbps Ethernet over Fiber

c)

1000 Mbps Ethernet over Serial

d)

10Mbps Ethernet over Static

11.

This may introduce up to 140 bit-times of latency.

a)

Class III Repeater 

b)

Class I Repeater

c)

Class S Repeater

d)

Class II Repeater

12.

This may only introduce a maximum of 92 bit-times latency.

a)

Class III Repeater 

b)

Class I Repeater

c)

Class S Repeater

d)

Class II Repeater

13.

It is a port type for multi-mode fiber and single-mode fiber. It uses four separate laser sources operating at 3.125 Gbit/s and Coarse wavelength-division multiplexing with four unique wavelengths around 1310 nm.

a)

10GBASE-LR

b)

10GBASE-LX4

c)

10GBASE-LX4

d)

10GBASE-SR

14.

It is particularly important in twisted-pair networks because signal integrity is dependent upon maintaining the differential relationship or “common mode” between the wiring pairs.

a)

frequency noise

b)

common mode noise

c)

transmission terminal noise

d)

feedback noise

15.

It is the term applied to transmitting Ethernet frames at a rate of a gigabit per second.

a)

Static Ethernet

b)

Ethernet

c)

Fast Ethernet

d)

Gigabit Ethernet

16.

This links generally consist of a connection between a station and a hub or switch.

a)

Ethernet

b)

Serial Connection

c)

Fast Ethernet

d)

Gigabit Coaxial

17.

The ethernet can do the following process except for __________

a)

detect corrupt data

b)

restrict connected networks

c)

specify recipient

d)

synchronize time intervals

18.

It is also called thick Ethernet, ThickWire, and ThickNet.

a)

10Base2

b)

10Base5

c)

10BaseT

d)

10Base8

19.

200 Mbps transmission is possible because of the separate transmit and receive paths in ____________.

a)

100BASE-FX Ethernet twisted pair 

b)

100BASE-FG network cable

c)

100BASE-FX optical Fiber

d)

100BASE-F6 optical coaxial

20.

It is a binary code in which ones are represented by one significant condition, usually a positive voltage, while zeros are represented by some other significant condition, usually a negative voltage, with no other neutral or rest condition.

a)

non-return-to-zero line code

b)

MAC code

c)

network code

d)

binary code

21.

It is group communication where data transmission is addressed to a group of destination computers simultaneously. 

a)

single cast

b)

multicast

c)

infinite cast

d)

unicast

22.
a)

shared access is a collision domain

b)

collision domain - created by hub

c)

point-to-point

d)

collision domain - extended by repeater

23.
a)

shared access is a collision domain

b)

collision domain - created by hub

c)

point-to-point

d)

collision domain - extended by repeater

24.
a)

shared access is a collision domain

b)

collision domain - created by hub

c)

point-to-point

d)

collision domain - extended by repeater

25.
a)

shared access is a collision domain

b)

collision domain - created by hub

c)

point-to-point

d)

collision domain - extended by repeater

26.

This can consume sufficient network resources so as to render the network unable to transport normal traffic.

a)

broadcast failure

b)

broadcast failure

c)

broadcast error

d)

broadcast storm

27.

It is the accumulation of broadcast and multicast traffic on a computer network. Extreme amounts of broadcast traffic constitute a broadcast storm.

a)

broadcast manipulation

b)

broadcast intersection

c)

broadcast radiation

d)

broadcast connection

28.

A broadcast is forwarded across all bridges whether the receiving host is on the other side bridge or not. This eliminates the benefits of having a ____________.

a)

unstable network

b)

bridged network

c)

parallel network

d)

connected network

29.

This type of network is fine for an isolated network that does not require much data transmission.

a)

unidentified network multiple collision

b)

small network single collision

c)

large network double collision

d)

large network single collision

30.

Which of the following is not part of the STP states?

a)

forwarding

b)

blocking

c)

connecting

d)

learning

31.

Latency in networks is measured in ____________.

a)

miniseconds

b)

microseconds

c)

milliseconds

d)

nanoseconds

32.

It is also referred to as the IEEE way, is a design guideline for Ethernet computer networks covering the number of repeaters and segments on shared-access Ethernet backbones in a tree topology.

a)

2-8-16 rule

b)

1-0-1 rule

c)

1-2-3 rule

d)

5-4-3 rule

33.

It happens when a switch receives the entire frame before sending it out to the destination port.

a)

store and forward

b)

front and backward

c)

split and turn

d)

side and diagonal

34.

It is a logical division of a computer network, in which all nodes can reach each other by broadcast at the data link layer. 

a)

forward packet

b)

proxy domain

c)

broadcast domain

d)

popular domain

35.

It is a network protocol that builds a loop-free logical topology for Ethernet networks.

a)

Server Tree Protocol (STP)

b)

Binary Tree Protocol (BTP) 

c)

Spanning Tree Protocol (STP)

d)

Network Tree Protocol (NTP)

36.

The data through a network flow from _______________.

a)

application to physical >> physical to application layer

b)

session to presentation >> transport to network

c)

physical to application >> application to physical layer

d)

data link to physical >> network to transport layer

37.

It uses a table called the forwarding information base to control the forwarding of frames between network segments. 

a)

broadcast domain

b)

Transparent bridging

c)

Ethernet segmenting

d)

Bridge Porting

38.

The data stream and wire segments are part of the _________ layer.

a)

transport

b)

session

c)

data link

d)

network

39.

It is the time it takes for data or a request to go from the source to the destination.

a)

network stability

b)

network latency

c)

network bandwidth

d)

network attenuation

40.

A process where a switch starts to transfer the frame as soon as the destination MAC address is received

a)

Cut-Through

b)

Cross-Through

c)

Dive-Through

d)

Connect-Through