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Networking Fundamentals > Networking > Flashcards

Networking Flashcards

1
Q

What port is DNS?

A

53

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2
Q

As packets traverse a network, each router is known as a “ “?

A

Hop

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3
Q

What do you use to create VLANs?

A

Layer 3 Switches

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4
Q

What layer of the OSI do MAC addresses and switches use?

A

Data Link

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5
Q

Which of the following are fiber connectors?

a. FC
b. LC
c. MT-RJ
d. RJ-45

A

a. FC
b. LJ
c. MT-RJ

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6
Q

X.25 was replaced with “ “?

A

Frame Relay

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7
Q

What model uses a centralized database for authentication?

A

Client/Server

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8
Q

Which protocol automatically assigns IP configurations to clients?

A

DHCP

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9
Q

Well known ports are between “ “?

A

0-1023

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10
Q

What command shows you the MAC address on a NIC?

A

ipconfig/all

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11
Q

What kind of network enables people outside of the company to access specific resources but not everyone on the Internet?

A

Extranet

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12
Q

What device is used as a high speed modem for a LAN?

A

CSU/DSU

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13
Q

What IPv4 class is used for multi-casting?

A

Class D

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14
Q

What layer includes cables and network adapters?

A

Physical

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15
Q

Which layer of the OSI model is included in the TCP/IP model?

A

Transport

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16
Q

What is an advantage of single-mode fiber?

A

Longer distances for transmissions vs. multi-mode

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17
Q

Which of the following enables a Windows Server to act as a router?

a. DHCP
b. IP Forwarding
c. RDP
d. RDC

A

IP Forwarding

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18
Q

What model is used to describe how data communication occurs between hosts/ two computers?

A

OSI

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19
Q

What is the most common type of cable used today?

A

UTP

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20
Q

For a cross-over cable, if one end is 568A the other end should be “ “?

A

568B

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21
Q

What command enables you to display and modify network configurations on a local computer?

A

Netsh

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22
Q

What speed does T1 run at?

A

1.544 Mbps

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23
Q

Which command would you use to test a computers TCP/IP stack?

A

Ping 127.0.0.1

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24
Q

What type of server is used to translate host names to IPs?

A

DNS

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25
Q

List the 4 steps of a client acquiring an IP from a DHCP server.

A

Discovery, Offering, Request, Acknowledge

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26
Q

What type of address uses 169.254.32.22?

A

APIPA

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27
Q

What type of address is used to send a single set of packets to multiple hosts?

A

Multicast

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28
Q

Which area defines where the responsibility of a network admin ends and the telecommunications provider takes ownership?

A

Demarc

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29
Q

What type of firewall blocks packets based on port numbers that are closed or IP addresses that are not allowed?

A

Packet Filter

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30
Q

Which VPN technology is the easiest to setup and most commonly used and has the least security?

A

PPTP

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31
Q

A “ “ is a single device or computer that connects to a TCP/IP network?

A

Host & Node

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32
Q

This IPSec component has the highest security?

A

ESP

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33
Q

This type of route never changes and must be defined on the router?

A

Static

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34
Q

What layer of the OSI model enables connections to be created so that a host can begin transferring files?

A

Session

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35
Q

When you are assigned a 169.21.43.11 address, what could be the issue?

A

Not able to find DHCP server

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36
Q

L2TP is used with what protocol for encrypting data?

A

IPSec

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37
Q

I want to ping a computer constantly, which command should I use?

A

Ping -t

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38
Q

Which command displays Ethernet stats such as the number of packets sent and received?

A

Netstat -e

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39
Q

A host with a 180.24.45.120 is from what class?

A

Class B

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40
Q

What is the min category cable used for 100 Mbps?

A

CAT5

41
Q

Why is UDP preferred over TCP for video?

A

Less overhead = faster performance

42
Q

What defines the nearest router for a host?

A

Default gateway

43
Q

What layer of the OSI involves encrypting data?

A

Presentation

44
Q

Max speed supported by 802.11b?

A

11 Mbps

45
Q

You pick up your wireless phone and your wifi connection drops, what is the cause?

A

RFI

46
Q

When running UTP cable through/ near heavy machinery, you should use?

A

STP

47
Q

Which of the following utilizes wires from a telephone company to provide Internet access?

a. DSL
b. Cable
c. 4GTE
d. FDDI

A

DSL

48
Q

DS0 runs at what speed?

A

64 Kbps

49
Q

In Europe, T1 is similar to “ “?

A

E1

50
Q

What port does DHCP use?

A

67

51
Q

What do you use to isolate a group of computers within an organization?

A

VLAN

52
Q

What type of authentication is used for for enterprise networks?

A

802.1x

53
Q

TCP/IP and IPX/SPX are what type of stacks?

A

Protocols

54
Q

Which protocol is connectionless and has faster performance?

A

UDP

55
Q

What port does L2TP use?

A

1701

56
Q

What is the default subnet mask for a class B network?

A

255.255.0.0

57
Q

How many layers does the TCP/IP model have?

A

4

58
Q

What would be used to host/ publish a webstore or a website for a computer?

A

DMZ

59
Q

Multimode fiber is different from single mode fiber because “ “?

A

It uses multiple beams of light

60
Q

Subnet mask of 255.255.240.0 is which of the following CIDR notations?

A

/20

61
Q

Which of the following caches Internet traffic for quicker access and also acts as the middleman?

A

Proxy server

62
Q

What is the most common central device used today to connect computers on a network?

A

Switch

63
Q

To test a cable you would use a “ “?

A

Continuity tester

64
Q

What is the maximum number of hosts you can use for a class C subnet?

A

254

65
Q

What port is HTTP?

A

80

66
Q

What command enables you to add static routes to a windows PC?

A

Route

67
Q

What routing protocol is most commonly used to determine best routes within a network and also utilizes a distance-vector routing algorithm?

A

RIP

68
Q

What is the most common adapter or connector used to connect a computer to a wired network?

A

RJ45

69
Q

What protocol does ping use?

A

ICMP

70
Q

Max speed supported by 802.11g “ “?

A

54 Mbps

71
Q

What type of IP address is assigned by a DHCP server?

A

Dynamic

72
Q

What ports are defined above 49,152?

A

Dynamic

73
Q

What mode uses a wireless access point?

A

Ad Hoc Mode

74
Q

What does TTL stand for?

A

Time To Live

75
Q

What protocol is used to translate IP addresses to MAC addresses?

A

ARP

76
Q

Which of the following is a loopback address?

a. 127.0.0.1
b. Loopback
c. Home
d. Host

A

a. 127.0.0.1

b. Loopback

77
Q

What speed does FDDI use?

A

100 Mbps

78
Q

Which device checks for malicious activity on a network and only reports it?

A

NIDS

79
Q

What describes CSMA/CD?

A

802.3

80
Q

What command would you use to check to see which TCP/ UDP connections are open/active?

A

Netstat

81
Q

What command enables you to connect to a remote computer and execute commands on the command line?

A

Telnet

82
Q

What command shows you ping response times and also each hop a packet takes as it traverses a network?

A

Tracert

83
Q

Why is X.25 no longer used?

A

It’s really slow

84
Q

A DMZ is also known as what?

A

Perimeter network

85
Q

Which would you use to block access to specific websites?

A

Internet Content a Filter

86
Q

What layer compresses data such as video formats?

A

Presentation

87
Q

Which commands do you use to test TCP/IP stack on a computer?

A

Ping localhost

Ping 127.0.0.1

Ping loopback

88
Q

What protocol would be appropriate for transferring/ hosting video?

A

UDP

89
Q

What is the equivalent of terminal services used in Windows Server 2008 R2?

A

Remote Desktop Services

90
Q

What would you use to create VPN tunnels through Windows Server 2008 R2?

A

Microsoft RRAS

91
Q

What component of IPSec enables encryption and authentication?

A

SA

92
Q

What encryption type is most secure?

A

WPA2

93
Q

Which of the following enables one to utilize a computer as if they were on a corporate network despite being on the Internet and not in the office?

A

VPN

94
Q

What layer of the OSI model is responsible for logging on and off?

A

Session

95
Q

What type of server does active directory run on?

A

Network Controller

96
Q

How many bits are in an IPv6 address?

A

128

97
Q

What command enables you to update the assigned DHCP configuration?

A

ipconfig/renew

98
Q

What is used to remap private IP addresses and public addresses to each other?

A

NAT

99
Q

When connecting a cable to a patch panel you must use a what?

A

Punch Down Tool

Networking Fundamentals (4 decks)

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