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A+ Networking 901 > Lesson 13 Networking > Flashcards

Lesson 13 Networking Flashcards

1
Q

What does OSI stand for?

A

Open Systems Interconnect

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2
Q

What company developed the OSI reference model?

A

International Standards Organization (ISO)

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3
Q

What protocol requires every packet to be transmitted?

A

TCP

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4
Q

What protocol is commonly used for streaming media?

A

UDP

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5
Q

What does UDP stand for?

A

User Datagram Protocol

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6
Q

Where high-level protocols such as SMTP and FTP operate in the TCP/IP model

A

Application Layer in TCP

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7
Q

TCP and UDP use this Layer

A

Transport

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8
Q

What is Layer 5 in the OSI model?

A

Session

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9
Q

IP addressing and routing takes place in this layer(TCP/IP)

A

Internet

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10
Q

What is the Port # for FTP

A

21

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11
Q

What is the Port # for SSH

A

22

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12
Q

What is the Port # for Telnet

A

23

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13
Q

What is the Port # for SMTP

A

25

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14
Q

What is the Port # for DNS

A

53

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15
Q

What is the Port # for HTTP

A

80

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16
Q

What is the Port # for POP3

A

110

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17
Q

What is the Port # for IMAP

A

143

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18
Q

What is the Port # for SLP

A

427

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19
Q

What is the Port # for HTTPS

A

443

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20
Q

What is the Port # for SMB

A

445,137-139

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21
Q

What is the Port # for AFP

A

548

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22
Q

What is the Port # for RDP

A

3389

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23
Q

What port is typically used for web browsing?

A

80

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24
Q

This protocol is allows clients to retrieve email from a mail server.

A

IMAP(Internet message access protocol)/SMTP/POP3

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25
Q

A decentralized naming system for computers

A

DNS

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26
Q

A cryptographic network protocol for operating network services securely over an unsecured network

A

(SSH) Secure Shell

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27
Q

What is RDP?

A

Remote Desktop Protocol

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28
Q

What is AFP?

A

AppleTalk Filing Protocol - file sharing protocol used in AppleTalk network

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29
Q

Large Corporations use this range of IPs

A

Class A - 1-126

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30
Q

What is the IP 127.0.0.1?

A

Loopback address

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31
Q

What headings do APIPA addresses start with?

A

169

32
Q

What does APIPA mean?

A

Automatic Private IP addressing

33
Q

how many bits is an IPv4 network?

A

32bit

34
Q

how many bits is in an IPv6 address?

A

128bit

35
Q

What are the two parts in an IPV4 address?

A

Network portion and host portion

36
Q

How many available ports are there in total used by protocols?

A

65536

37
Q

What is the best protocol to use when securely transferring large files?

A

SFTP

38
Q

What can translate data between different operating systems, or email formats, or between totally different networks?

A

Gateway

39
Q

Which OSI layer signals “all clear” by making sure the data segments are error free?

A

Transport Layer

40
Q

How many devices can a Bluetooth device connect to simultaneously?

A

7

41
Q

A device has an IPv6 address of 2001:0DB8:75a3:0214:0607:1234:aa10:ba01 /64. What is the host identifier of the device?

A

0607:1234:aa10:ba01

42
Q

Which layer of the OSI model is responsible for logical addressing and routing?

A

network

43
Q

When would a printer be considered a network host?

A

when it is connected to a switch

44
Q

Which three layers of the OSI model map to the application layer of the TCP/IP model?

A

Application, Session, Presentation

45
Q

Which two layers of the OSI model correspond to the functions of the TCP/IP model network access layer?

A

Physical, Data Link

46
Q

What standard describes ethernet technology?

A

IEEE 802.3

47
Q

Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges?

A

802.11n

48
Q

Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?

A

switch

49
Q

A type of fiber optic transmission that uses a single one way transmission.

A

Simplex i.e.the signal that is sent from a TV station to your home TV is an example of what type of transmission?

50
Q

What standard describes Wireless LAN technology?

A

IEEE 802.11

51
Q

What encryption protocol does IEEE 802.11i/WPA2 use?

A

AES ( Advanced encryption Standard) considered the strongest encryption protocol.

52
Q

What are 2 non-RG coaxial cables?

A

thicknet(500m) and Thinnet(200m)

53
Q

When both ends of a cable is wired in T568A it is often called what?

A

Straight-through cable(connects a network host to a device)

54
Q

MMF &SMF is used in what type of cable?

A

Multimode & Single mode (fiber cables)

55
Q

What type of fiber connector uses Simplex?

A

LC (Lucent Connector)

56
Q

How many bits is an MAC address?

A

48

57
Q

What command would you type in cmd prompt to display your IPv6 address?

A

ipconfig /all

58
Q

How many hosts are in a class A network?

A

16 777 214

59
Q

How many hosts are in a class C network?

A

254

60
Q

What is CIDR?When is it used?

A

Classless Inter-Domain Router for subnetting

61
Q

When DHCP fails to assign you an address what happens?

A

an APIPA address will be assigned to you.

169 address

62
Q

What protocol is being used when you ping a server?

A

ICMP

63
Q

What is LoS?

A

Line of Sight

64
Q

This type of cloud computing is built to meet a specific need.

A

community cloud

65
Q

This type of cloud is intended for a specific organization or entity such as the government

A

private cloud

66
Q

This type of cloud is made up of two or more clouds connected via a single architecture

A

hybrid cloud

67
Q

This type of cloud is made available to the general public

A

public cloud

68
Q

This type of server stores frequently accessed web pages on the internal network

A

proxy server

69
Q

A technician is investigating a report that a computer is unable to access network resources. The technician discovers that the computer has an IP address of 169.254.27.168. What is a logical first step in diagnosing this problem?

A

check the NIC LED lights

70
Q

A technician uses the nbtstat -A 192.168.0.3 command. What does the technician expect to view in the command output?

A

current connections and statistics

71
Q

Which Cloud computing service would be best for an organization that does not have the technical knowledge to host and maintain applications at their local site?

A

SaaS Software as a Service

72
Q

Besides RDP what is another protocol that provides Remote Assistance?

A

Telnet

73
Q

What is Super G technology?

A

increases a bandwidth of an 802.11 technology (doubling)

74
Q

What command line would you use to find the ip address of www.npower.com?

A

nslookup

75
Q

What command line is used to identify any problems in a particular path?

A

tracert

A+ Networking 901 (2 decks)

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