Brainscape's Knowledge GenomeTM

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


See full index

A+ 220-801, 220-802 Q&A > CompTIA A+ Cert. Exam Guide Ch. 5 > Flashcards

CompTIA A+ Cert. Exam Guide Ch. 5 Flashcards

1
Q

What is a resource?

A

Anything one computer might share with another computer

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

What three things must a network have to share and access resources?

A
  1. Something that defines and standardizes the design and operation of cabling, network cards, and the interconnection of multiple computers
  2. An addressing method that enables clients to find servers and enables servers to send data to clients, no matter the size of the network
  3. Some method of sharing resources and accessing those shared resources
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

On a network, what is a client?

A

The user’s machine; the machine requesting access to a resource

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

On a network, what is a server?

A

The machine hosting the resource

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

What are the two most famous web server programs?

A

Apache HTTP Server and Internet Information Server (IIS)

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

What piece of hardware does a client/server machine need to function on a network?

A

Network Interface Card or

Network Interface Controller (NIC)

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

What is a Network Topology?

A

A network’s topology describes the way that computers connect to each other in that network.

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

Wat are the most common types of network topologies?

A

Bus, Ring, Star, and Mesh

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

Logical Topology

A

How the network is laid out on paper

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

Physical Topology

A

How the network is laid out physically

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

Bus Topology

A

All computers connect to the network via a main line called a bus cable. Each computer on the network connects to the bus cable.

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

Ring Topology

A

All computers attach to a central ring of cable

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

Star Topology

A

The computers connect to a central wiring point called a switch or hub

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

Mesh Topology

A

Each computer has a dedicated line to every other computer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a Network Technology?

A

A practical application of a topology and other critical standards to provide a method to get data from one computer to another on a network. It defines multiple aspects of a network, including the topology, frame type, cabling, and connectors.

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

What is a MAC address?

A

Media Access Control address; a MAC address is a unique address used to identify a specific NIC; A MAC address is a binary number consisting of 48 bits allowing for more than 281 trillion possible combinations.

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

What is Hexadecimal?

A

Shorthand used to represent binary; refer to the binary key

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

Binary key:

A 
0 = 0000               9 = 1001
1 = 0001                 A = 1010
2 = 0010                B = 1011
3 = 0011                 C = 1100
4 = 0100                D = 1101
5 = 0101                 E = 1110
6 = 0110                 F = 1111
7 = 0111
8 = 1000
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What information does a frame contain?

A
  • The recipient’s MAC address
  • The sender’s MAC address
  • The data
  • Error checking method (e.g., CRC)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is CRC?

A

Cyclic Redundancy Check; it is a method of checking the received data of a frame for errors

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

How fast is 10BaseT?

A

10 Mbps

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

How fast is 100BaseT?

A

100 Mbps

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

How fast is 1000BaseT?

A

AKA Gigabit Ethernet; 1000 Mbps of 1 Gbps

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

What is a star bus network topology?

A

A network in which a switch is used. The switch utilizes the bus topology internally and the computers connect to the switch utilizing the star topology.

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

What is the difference between a switch and a hub?

A

There are two main differences:

  1. With a hub, all computers receive all data transmitted and only the recipient computer opens the data. A switch will forward the data only to the intended recipient.
  2. With a hub, all computers connected will share the bandwidth piped into the hub. With a switch, all computers take advantage of the full bandwidth piped into the switch.
26
Q

What is a segment?

A

The connection between a computer and a switch. Ethernet segments are limited to 100 meters or less.

27
Q

What is Unshielded Twisted Pair (UTP) cable?

A

The specified cabling for 10/100/1000BaseT. It consists of AWG 22-26 guage wire twisted together into color-coded pairs. Each wire is individually insulated and encased as a group in a common jacket.

28
Q

What are the CAT levels of UTP cable?

A
  • CAT 1 - Standard telephone line
  • CAT 3 - Designed for 10 Mbps networks; a variant that used all four pairs of wires supported 100 Mbps speeds
  • CAT 5 - Designed for 100 Mbps networks
  • CAT 5e - Enhanced to handle 1000 Mbps networks
  • CAT 6 - Supports 1000 Mbps networks at 100 meter segments; 10 Gbps networks up to 55 meter segments
  • CAT 6e - Supports 10 Gbps networks at 100 meter segments
29
Q

What is Shielded Twisted Pair (STP) cable?

A

Consists of twisted pairs of wiring shielded to protect them from EMI

30
Q

WHat are the two types of UTP/STP connectors?

A

RJ-11 - used for POTS lines

RJ-45 - used for network cabling

31
Q

What are the two possible setups for UTP cables with an RJ-45 connector?

A

Pin T568A T568B
1 White/Green White/Orange
2 Green Orange
3 White/Orange White/Green
4 Blue Blue
5 White/Blue White/Blue
6 Orange Green
7 White/Brown White/Brown
8 Brown Brown

32
Q

What is the Plenum space?

A

The space in the ceiling, under floors, or in walls through which cable runs

33
Q

What is Plenum-grade cabling?

A

Cable wrapped in a fire-retardant jacket for use in the Plenum space. Cable with a typical jacket material (PVC) produces noxious fumes when overheated.

34
Q

What does Network Protocol software do?

A

It takes incoming data received by the NIC, keeps it organized, forwards it to the application that needs it, and takes data from the application and hands it to the NIC to be send out over the network/internet.

35
Q

What is a protocol stack?

A

The combination by a network protocol software of multiple simple protocols

36
Q

What is a node?

A

Any device that has a network connection

37
Q

What is NetBIOS/NetBEUI?

A

A network protocol developed in the 19080’s by IBM.
Features:
• NetBIOS handled naming conventions while NetBEUI chopped up data for delivery via frames
• Intended for smaller networks of up to 300 computers max
• Nodes were given simple NetBIOS names, allowing only letters
• Relied on individual computers to send out frames addressed to the MAC address FF-FF-FF-FF-FF-FF, which meant everyone. It was a broadcast network

38
Q

What is a LAN?

A

Local Area Network; A group of computers located close to one another, no more than a few hundred meters apart. It is typically contained within a single building. It is also considered a broadcast domain.

39
Q

What is a broadcast domain?

A

A group of computers (a LAN) that are able to “hear” each other when one of them sends a broadcast.

40
Q

What is a WAN?

A

Wide Area Network; A widespread group of computers connected using long-distance technologies. You connect LANs into a WAN via routers.

41
Q

What does TCP/IP stand for?

A

Transmission Control Protocol/Internet Protocol

42
Q

What is an IP address?

A

A unique identification number for your device on the network; part of the address identifies the network, and part identifies the local computer.
An IP address consists of 4 sets of 8 binary numbers separated by periods and range from 0 to 255. An example is 192.168.0.1

43
Q

What is dotted-decimal notation?

A

The format of an IP address: xxx.xxx.xxx.xxx

44
Q

What is the Network ID?

A

The portion of the IP address that is the same for all computers on the network.

For example, the Network ID for IP addresses 192.168 0 1 and 192.168.0.3 is 192.168.0

45
Q

How does a computer know which part of its IP address identifies the Network ID?

A

The Subnet Mask defines Network ID. Where there is a 255 in the subnet mask, that portion of the IP address is part of the network ID.

46
Q

What is a router?

A

A networking device that facilitates communication between computers across a WAN. A router contains two IP addresses: one that connects to the LAN and the other to the WAN/Internet

47
Q

What is DNS?

A

Domain Name Service; it is a service that translates IP addresses into a user friendly format (e.g., 74.125.227.244 translates to www.google.com)

48
Q

What does ICANN stand for?

A

Internet Corporation for Assigned Names and Numbers

49
Q

What is a default gateway?

A

The LAN side IP address of the router that computers use to send out data to the internet.

50
Q

What three groups did Microsoft design Windows to work in?

A

Workgroups, Domains, and Homegroups

51
Q

What are the three permissions settings you can assign to someone when sharing a folder?

A

• Read - The ability to see and open files in the folder
• Read/Write - Same as read with the ability to save file
to the folder
• Owner - Same as Read/Write with the ability to set
permissions for users accessing the folder

52
Q

What is single sign-on?

A

The ability to sign onto any computer on a domain network using a single account

53
Q

How does a Workgroup function?

A
  • No centralized control
  • Sharing folders requires the setup of local user accounts on each machine
  • Usernames and passwords are stored locally on the machine
54
Q

How does a Domain work?

A
  • Requires a computer running a version of Windows Server, referred to as a Domain Controller
  • Offers centralized control over the network
  • Users can log onto any computer on the domain using single sign-on
55
Q

What is a domain controller (DC)?

A

A computer running a version of Windows Server that stores and authenticates the usernames and passwords for users accessing computers on the network

56
Q

What are domain accounts?

A

Accounts setup on a domain controller that give users access to computers and resources on a domain network

57
Q

How do you create a Homegroup for sharing files?

A
  • Open the HomeGroup Control Panel applet
  • Click Create a HomeGroup
  • Select which items you want to share
  • Notate the password for those who with to participate in the HomeGroup
  • Click Finish
58
Q

What are the 5 item type options available for sharing in a HomeGroup?

A
  • Pictures
  • Music
  • Videos
  • Documents
  • Printers
59
Q

How do you join a HomeGroup?

A
  • Open up the HomeGroup Control Panel applet
  • Click Join Now
  • Enter the common password for the HomeGroup you wish to join
60
Q

How do you share other items with your HomeGroup?

A
  • Select ‘How do I share other libraries?’ from the HomeGroup Control Panel applet
  • Right-click an item or folder and select ‘Share with’ from the menu.
61
Q

What 4 options are available to you from the ‘Share with’ menu when you right-click an item/folder?

A
  • Nobody
  • Homegroup (Read)
  • Homegroup (Read/Write)
  • Specific People

A+ 220-801, 220-802 Q&A (22 decks)

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