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CRST > Network > Flashcards

Network Flashcards

1
Q

Thick ethernet cables use what type of connector?
A) BNC
B) DX
C) AUI
D) RJ45

A

BNC

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2
Q

A 10base2 cable is connected to a NIC using what type of connector

A

BNC

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3
Q

Fast ethernet is also called

A

100-Mbps Ethernet

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4
Q

On a null modem cable the following wires are cross connected

A

2 and 3

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5
Q

max recommended length of a complete SCSI chain is _____?

A

15 ft

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6
Q

Which system can be classified as a bus topology?
A) Ethernet
B) Token Ring
C) Arcnet
D) Fiberlink

A

ethernet

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7
Q

Thinnet ethernet boasts the following advantages over thicknet

A

better bend radius

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8
Q

Which DOS command can be used to test the connection between 2 devices on an ethernet network if the TCP/IP address of the device is known

A

ping

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9
Q

what is broadcast loopback IP address

A

127.0.0.1

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10
Q

which of the following IPV4 address is the loopback address

A

127.0.0.1

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11
Q

What is the size of todays standard IPV4 IP addresses

A

4 bytes 32bits

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12
Q

ARCNet can be classified as what topology

A

bus or star or mixture

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13
Q

Which type of network only lets clients transmit data when they have a turn

A

token ring

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14
Q

what is basic unit of ethernet traffic?
A) Frame
B) File
C) Stream
D) Packet

A

frame

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15
Q

which system can be classified as a star topology by mistake

A

token ring

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16
Q

client / server LAN

A

employs dedicated station as a server

17
Q

when connecting two hubs together us a ___

A

patch cable

18
Q

why does fiber optic cable has a high degree of data security as far as data communication are concerned?
A) loses signal strength when tapped into; does not radiate signal; does not tap easily
B) loses signal strength when tapped into
C) does not radiate signal
D) does not tap easily

A

loses signal strength when tapped into; does not radiate signal; does not tap easily

19
Q

in a token ring enviroment

A

token is passed counter-clockwise around the ring

20
Q

twisted pair network uses ____ conductors

A

10base T

21
Q

transferring an entire data word over serial conductors at one time is what type of communication

A

parallel

22
Q

When connecting two hubs together use a ___cable

A

cross over

23
Q

What is most common type of LAN topology

A

Star

24
Q

Broadcast loopback IP address is 10.10.10.1.

A

False

Loop back address is 127.0.0.1

25
Q

On a serial data analyzer, alpha-numeric characters appear in the “sent” data field and blinking hex characters appear in the “receive” data field. Why?

A

received data does not match protocol

26
Q

What is a modem?

A

modulates RS-232 digital data for transmission; De-modulates phone line data into RS-232 digital data; connects to an RS-232

27
Q

What is used to boost a digital signal?
A) repeater
B) Booster
C) Amplifier
D) Multiplier

A

Repeater

28
Q

The recommended maximum length of an RS-232 serial connection is?
A) 50 feet (15M)
B) 10 feet (3M)
C) 25 feet ( 8.5 M)
D) 100 feet (33M)

A

50 feet (15M)

29
Q

An RJ-45 connector is most commonly used with?
A) Unshielded twisted pair cable
B) Disk drive units
C) Fiber Optic cable
D) Coaxial cable

A

Unshielded twisted pair cable

30
Q

Maximum length of 10Base-2 Ethernet network segment is?
A) 185M
B) 15M
C) 520M
D) 1050M

A

185M

31
Q

What protocol is required for internet access?
A) TCP/IP
B) NetBEUI
C) FTP
D) HTTP

A

TCP/IP

32
Q

To connect your PC to a network you will need a _____?

A

Network interface card (NIC)

33
Q

Characteristics of 10Base2 cable?

A

185 Meters, 10Mbps

CRST (6 decks)

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