Networking 1

Question 1

End device examples

Answer 1

• Desktop Computer
• Laptop
• Printer
• IP Phone
• Wireless Tablet

Question 2

Client and server software usually run on separate computers, but it is also possible for one computer to be used for both roles at the same time.

Answer 2

Peer-to-Peer

Question 3

either the source or destination of a message transmitted over the network

Answer 3

end device

Question 4

connect the individual end devices to the network

Answer 4

Intermediary devices

Question 5

Data is encoded into electrical impulses

Answer 5

Metal wires within cables

Question 6

Data is encoded into pulses of light

Answer 6

fiber-optic cable

Question 7

Data is encoded via modulation of specific frequencies of electromagnetic waves

Answer 7

Wireless transmission

Question 8

All computers that are connected to a network and participate directly in network communication are classified

Answer 8

Hosts

Question 9

Intermediary Devices Example

Answer 9

1. Wireless Router
2. LAN Switch
3. Router
4. Firewall appliance
5. Multilayer switch

Question 10

Network Media

Answer 10

1. Wireless Media
2. LAN Media
3. WAN Media

Question 11

physically connects the end device to the network

Answer 11

Network Interface Card

Question 12

A connector or outlet on a networking device where the media connects to an end device or another networking device.

Answer 12

Physical Port

Question 13

Specialized ports on a networking device that connect to individual networks. Because routers connect networks, the ports on a router are referred to as network interfaces.

Answer 13

Interface

Question 14

illustrate the physical location of intermediary devices and cable installation

Answer 14

Physical Topology

Question 15

illustrate devices, ports, and the addressing scheme of the network

Answer 15

Logical topology

Question 16

allows computers in a home office or a remote office to connect to a corporate network, or access centralized, shared resources.

Answer 16

Small Office and Home Office Network

Question 17

connect a few computers to each other and to the internet

Answer 17

Small Home Network

Question 18

such as those used by corporations and schools, can have many locations with hundreds or thousands of interconnected hosts.

Answer 18

Medium to large networks

Question 19

The internet is a network of networks that connects hundreds of millions of computers world-wide.

Answer 19

World Wide Networks

Question 20

a network infrastructure that spans a small geographical area

Answer 20

LAN

Question 21

network infrastructure that spans a wide geographical area.

Answer 21

WAN

Question 22

worldwide collection of interconnected networks

Answer 22

internet

Question 23

designed to be accessible only by the organization’s members, employees, or others with authorization.

Answer 23

intranet

Question 24

• a private network similar to an intranet, but typically open to external parties, such as business partners, suppliers, key customers
• might an organization use to provide secure and safe access to individuals who work for a different organization but require access to the organization’s data

Answer 24

extranet

Question 25

It provides a high bandwidth, high availability, and an always-on connection to the internet

Answer 25

cable

Question 26

provide high bandwidth, high availability, and an always-on connection to the internet. DSL runs over a telephone line

Answer 26

DSL

Question 27

uses a cell phone network to connect

Answer 27

Cellular

Question 28

The availability of satellite internet access is a benefit in those areas that would otherwise have no internet connectivity at all. Satellite dishes require a clear line of sight to the satellite.

Answer 28

satellite

Question 29

An inexpensive option that uses any phone line and a modem. The low bandwidth provided by a dial-up modem connection is not sufficient for large data transfer, although it is useful for mobile access while traveling.

Answer 29

Dial-up Telephone

Question 30

Leased lines are reserved circuits within the service provider’s network that connect geographically separated offices for private voice and/or data networking. The circuits are rented at a monthly or yearly rate.

Answer 30

Dedicated Leased Line

Question 31

This is sometimes known as Ethernet WAN; Extends LAN access technology into the WAN. Ethernet is a LAN technology you will learn about in a later module.

Answer 31

Metro ethernets

Question 32

A popular choice is Symmetric Digital Subscriber Line (SDSL) which is similar to the consumer version of DSL but provides uploads and downloads at the same high speeds.

Answer 32

Business DSL

Question 33

Each network used different technologies to carry the communication signal. Each network had its own set of rules and standards to ensure successful communication. Multiple services ran on multiple networks

Answer 33

Traditional Separate Networks

Question 34

This network infrastructure uses the same set of rules, agreements, and implementation standards. Converged data networks carry multiple services on one network.

Answer 34

Converged Networks

Question 35

prioritize time-sensitive traffic. The type of traffic, not the content of the traffic, is what is important.

Answer 35

Quality of Service

Question 36

network expands quickly to support new users and applications

Answer 36

Scalability

Question 37

network is one that limits the number of affected devices during a failure

Answer 37

Fault Tolerance

Question 38

physically securing devices that provide network connectivity and preventing unauthorized access to the management software that resides on them,

Answer 38

network security

Question 39

only the intended and authorized recipients can access and read data

Answer 39

data confidentiality

Question 40

assures users that the information has not been altered in transmission, from origin to destination

Answer 40

Integrity

Question 41

assures users of timely and reliable access to data services for authorized users

Answer 41

Availability

Question 42

enables end users the freedom to use personal tools to access information and communicate across a business or campus network

Answer 42

Bring Your Own Device (BYOD)

Question 43

“the act of working with another or others on a joint project.”

Answer 43

Online Collaboration

Question 44

allows us to store personal files, even backup an entire drive on servers over the internet

Answer 44

cloud computing

Question 45

applications and services offered in a public cloud are made available to the general population. Services may be free or are offered on a pay-per-use model, such as paying for online storage.

Answer 45

public cloud

Question 46

applications and services offered in a private cloud are intended for a specific organization or entity, such as a government.

Answer 46

private cloud

Question 47

is made up of two or more clouds (example: part private, part public), where each part remains a distinct object, but both are connected using a single architecture

Answer 47

hybrid cloud

Question 48

are used by multiple organizations that have similar needs and concerns. Community clouds are similar to a public cloud environment, but with set levels of security, privacy, and even regulatory compliance of a private cloud

Answer 48

community cloud

Question 49

home networks uses existing electrical wiring to connect devices

Answer 49

Powerline networking

Question 50

an ISP that connects subscribers to a designated access point or hot spot using similar wireless technologies found in home wireless local area networks (WLANs)

Answer 50

Wireless Internet Service Provider (WISP)

Question 51

hese applications help to protect end devices from becoming infected with malicious software.

Answer 51

Antivirus and antispyware

Question 52

blocks unauthorized access into and out of the network. This may include a host-based firewall system that prevents unauthorized access to the end device, or a basic filtering service on the home router to prevent unauthorized access from the outside world into the network.

Answer 52

Firewall filtering

Question 53

These contain malicious software or code running on a user device

Answer 53

Viruses, worms, and Trojan horses

Question 54

These are types of software which are installed on a user’s device. The software then secretly collects information about the user.

Answer 54

Spyware and adware

Question 55

these occur on the first day that a vulnerability becomes known

Answer 55

Zero-day attacks

Question 56

A malicious person attacks user devices or network resources

Answer 56

Threat actor attacks

Question 57

These attacks slow or crash applications and processes on a network device.

Answer 57

Denial of service attacks

Question 58

This attack captures private information from an organization’s network.

Answer 58

Data interception and theft

Question 59

This attack steals the login credentials of a user in order to access private data.

Answer 59

Identity theft

Question 60

These provide more advanced firewall capabilities that can filter large amounts of traffic with more granularity.

Answer 60

Dedicated firewall systemsDedicated firewall systems

Question 61

These further filter access and traffic forwarding based on IP addresses and applications.

Answer 61

Access control lists (ACL)

Question 62

These identify fast-spreading threats, such as zero-day or zero-hour attacks.

Answer 62

Intrusion prevention systems (IPS)