Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Networking IT 2400 > Test ch. 6-8 > Flashcards

Test ch. 6-8 Flashcards

1
Q

What is a Default Gateway?

A

In a TCP/IP network, the IP address of the router that interconnects the LAN to a wider network, usually the Internet. This router’s IP address is part of the necessary TCP/IP configuration for communicating with multiple networks using IP.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is NAT?

A

Network Address Translation - A means of translating a system’s IP address into another IP address before sending it out to a larger network. NAT manifests itself by a NAT program that runs on a system or a router. A network using NAT provides the systems on the network with private IP addresses. The system running the NAT software has two interfaces: one connected to the network and the other connected to the larger network.
The NAT program takes packets from the client systems bound for the larger network and translates their internal private IP Addresses to its own public IP address, enabling many systems to share a single IP address.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

When subnetting, do not think of each subnet mask in dotted decimal, rather work with it in binary and another notation that uses a slash and is named for the method of generating blocks of IP addresses.

A

CIDR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Every IP node on a network has a routing table.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Routers work primarily with the source IP address of each packet.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Nat is the same as routing.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

At which layer of the OSI model do routers work?

A

Network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The process of installing a large structured cabling system is so simple and logical that even a novice network tech can do it, following the published guidelines.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which of the following is not an accurate description of the differences in stranded core and solid core cabling.

A

Stranded core is UTP while solid core is fiber-optic cabling.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which of the following IP addresses is an APIPA address?

A

169.254.1.30

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What network protocol do Linux and Apple (Macintosh) systems most commonly use today?

A

TCP/IP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Of the following, which would probably not be true of a network that occupies multiple stories of a large building?

A

one telecommunications room supporting the entire network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is structured cabling?

A

Standards defined by the TIA/EIA that define methods of organizing the cables in a network for ease of repair and replacement.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name 3 important elements of basic structured cabling network.

A
  1. Telecommunications room
  2. Horizontal Cabling
  3. Work Area
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the telecommunications room?

A

Equipment goes in here. All cables run horizontally from here. IDF (intermediate distribution frame)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is horizontal cabling?

A

Cabling that connects the equipment room to the work areas.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is a run?

A

A single piece of of installed horizontal cabling.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the work area?

A

An office or cubicle that contains a PC and telephone.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Who sets the standards fo cabling?

A

TIA/EIA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is solid core?

A

Uses a single solid wire, better conductor, but stiff and will break if handled too much. TIA/EIA says horizontal cabling should be solid core.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is stranded core?

A

Each wire is a bundle of tiny wire strands. Not as good as a conductor as solid core, but handles more handling without breaking.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Equipment racks

A

All equipment racks are 19 inches wide. Vary in height.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is a patch panel?

A

A box with a row of female connectors (ports) in the front and permanent connections in the back, to which you connect the horizontal cables.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is a 110 block?

A

Also called a 110-punchdown block. A connector for a patch panel. Use a punchdown tool.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is a patch cable?

A

Short, UTP cables. Stranded. Patch cables add extra distance between the switch and the PC.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is a demarc?

A

Connections from the outside world that come into a building at a location. aka demarcation point.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is a NIU?

A

Network Interface Unit. In a private home, the DSL or cable modem supplied by your ISP.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is a smart jack?

A

Special NIU that determines if the customer has disconnected from the NIU. Set up a remote loopback - critical for loopback testing when you’re at one end of the connection and the other connection is blocks or even miles away.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Demarc Extension

A

Any cabling that runs from the network interface to whatever box is used by the customer as a demarc.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Multiplexer

A

A device that merges information from multiple input channels to a single output channel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Vertical cross-connect

A

The main patch panel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

MDF

A

Main Distribution Frame. Stores all the equipment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Cable Drop

A

The location where the cable comes out of the wall in the workstation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Raceways

A

Products that adhere to the wall. Running cables along the walls.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Determining the Telecommunications room

A
  1. Distance - Won’t require cable runs longer than 90 meters.
  2. Power - Make sure there is enough power.
  3. Humidity - none
  4. Cooling - Keep cool
  5. Access - only authorized people
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Continuity

A

A complete, functioning connection

37
Q

Cable tester

A

A generic name for a device that tests cables. Some common tests are continuity, electrical shorts, crossed wires or other electrical characteristics.

38
Q

Near-end Crosstalk

A

NEXT

39
Q

Far-end Crosstalk

A

FEXT

40
Q

Attenuation

A

A signal progresses down a piece of wire and becomes weaker.

41
Q

Cable Certifiers

A

A powerful cable testing device used by professional installers to test the electrical characteristics of a cable and then generate a certification repot, proving that cable runs pass TIA/EIA standards

42
Q

OTDR

A

Optical Time Domain Reflector - determines continuity and breaks

43
Q

Loopback test

A

Sends data out of the NIC and checks to see if it comes back.

44
Q

UPS

A

Uninterruptible Power Supply

45
Q

Toner

A

tone generator and tone probe

46
Q

IP

A

Internet Protocol - works at the Internet layer, taking data chunks from the Transport layer, adding addressing, and creating the final IP packet.

47
Q

IPv4

A

Internet Protocol version 4, Typical IP address: 192.168.1.115

48
Q

IPv6

A

Internet Protocol version6, longer address

49
Q

ICMP

A

Internet Control Message Protocol, used with Ping

50
Q

RTT

A

Round Trip Time or Real Transfer Time

51
Q

Internet Layer

A

IPv4, IPv6, ICMP

52
Q

IP Address

A

The numeric address of a computer connected to a TCP/IP network, such as the Internet. IPv4 addresses are 32 bits long, written as four octets of 8-bit binary. IPv6 addresses are 128 bits long, written as eight sets of four hexadecimal characters. IP addresses must be matched with a valid subnet mask, which identifies the part of the IP address that is the network ID and the part that is the host ID.

53
Q

IP addresses are part of the Network/Internet layer

A

True

54
Q

TTL

A

Time To Live

55
Q

Connection-oriented

A

TCP - Transmission Control Protocol, use when you want to make sure it gets there in good order

56
Q

Connectionless

A

UDP - User Datagram Protocol, not a big deal to miss a bit or two.

57
Q

Continuity tester

A

Inexpensive network tester that can only test for continuity on a line.

58
Q

Wiremap

A

Term that techs use to refer to the proper connectivity of wires in a network.

59
Q

Time Domain Reflector

A

TDR - Advanced cable tester that tests the length of cables and their continuity or discontinuity, and identifies the location of any discontinuity due to a bend, break, unwanted crimp, and so on.

60
Q

Subnet Mask

A

The value used in TCP/IP settings to divide the IP address of a host into its component parts: network ID and host ID. A string of ones followed by some number of zeros, always exactly 32 bits, typed into every TCP/IP host.

61
Q

CIDR

A

Classless Inter-Domain Routing - Method of categorizing IP addresses inorder to distribute them

62
Q

Subnetting

A

Taking a single class of IP addresses and chopping it into multiple smaller groups.

63
Q

Dotted Decimal Notation

A

Shorthand method for discussing and configuring binary IP addresses.

64
Q

ipconfig

A

A command-line utility for Windows that displays the current TCP/IP configuration of the machine; similar to UNIC/Linux’s ifconfig.

65
Q

ifconfig

A

A command-line utility for Linux servers and workstation that displays the current TCP/IP configuration of the machine, similar to ipconfig for Windows systems.

66
Q

Network ID

A

A number used in IP networks to identify the network on which a device or machine exists.

67
Q

Host ID

A

The portion of an IP address that defines a specific machine in a subnet.

68
Q

Routing Table

A

Actual instructions that tell the router what to do with incoming packets and where to send them.

69
Q

00000000

A

0

70
Q

11111111

A

255

71
Q

ARP

A

Address Resolution Protocol

72
Q

IANA

A

Internet Assigned Numbers Authority - formed to track and disperse IP addresses.

73
Q

Jon Postel

A

Initially handled IANA.

74
Q

Class Licenses

A

IANA passes out IP addresses in contiguous chunks.

75
Q

Class A

A

First Decimal Value: 1-26; Addresses: 1.0.0.0-126.255.255.2555; Hosts/Network ID: 16,277,244

76
Q

Class B

A

First Decimal Value: 128-191; Addresses: 128.0.0.0.-191.255.255.255; Hosts/Network ID: 65,534

77
Q

Class C

A

First Decimal Value: 192-223; Addresses: 192.0.0.0-223.255.255.255; Hosts/Network ID: 254

78
Q

Class D

A

First Decimal Value: 1-26; Addresses: 1.0.0.0-224.0.0.0-239.255.255.255; Hosts/Network ID: Multicast

79
Q

Class E

A

First Decimal Value: 1-26; Addresses: 240.0.0.0-254.255.255.255; Hosts/Network ID: Experimental

80
Q

Broadcast

A

Every computer on the LAN hears the message

81
Q

Unicast

A

Ehere one computer sends a message directly to another user

82
Q

Multicast

A

A single computer sends a packet to a group of interested computers. Often used when routers talk to each other.

83
Q

2^X-2=

A

X Represents the number of zeroes in the subnet mask.

84
Q

DSM

A

Default Subnet Mask

85
Q

NE

A

Network ID Extension

86
Q

H

A

Hosts

87
Q

Convert /25 into dotted decimal.

A

First write out 25 ones followed by 7 zeroes. Subnet masks are always 32 binary digits long. 11111111.11111111.11111111.10000000
Then convert to dotted decimal. 255.255.255.128

88
Q

OSPF

A

Open Shortest Path First - An interior gateway routing protocol developed for IP networks based on the shortest path first or link-state algorithm.

Networking IT 2400 (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions