Computer Networks

Compared to its individual clients, why does Amazon Web Services achieve higher server utilization?

AWS' clients have different demand cycles.

What is the difference between SaaS and Cloud Computing?

Cloud is an infrastructure that is used by servers and computers. SaaS is software applications which users can use by using cloud.

Cloud services security policies vary by Cloud provider, so it's important to research policies before signing a service level agreement (SLA). Some important questions to ask a vendor about Cloud services security include which of the following? More than one answer may be selected.

Does the vendor have any specific security certifications? What type of disaster plans are in place?* Does the vendor go through regular security audits?

Examples of Internet of Things (IoT) devices include which of the following? More than one answer may be selected.

Smart TVs Home Security Cameras Smart Speakers

Connect a variety of devices between two or more geographic locations.

WAN

Controls the movement of packets throughout the network

internet

Which of Intuit's applications were migrated to the cloud first?

those with highly cyclical demand

An investment firm creates a network designed to facilitate information exchange between devices at its offices in New York City and New Haven, Connecticut. Which type of network would the company use to exchange information?

wide area network (WAN)

Select the potential applications/benefits of 5G networks. More than one answer may be selected.

5G networks may eventually allow for autonomous vehicles to safely interact with each other and their environment. 5G connectivity has the potential to create truly connected cities. 5G connectivity will greatly improve what businesses and individuals can do with connected devices.

Which of the following are true statements about cryptocurrencies? More than one answer may be selected.

A cryptocurrency only exists on a computer. You can create new cryptocurrency using a process called mining.

What are some changes that Microsoft faced in their transition to Office 365?

A few changes that Microsoft had to make in order to transition to Office 365 were being able to improve some of their services and making changes to their product development.

Collaboration software is designed to enhance the productivity of teams, groups, and organizations. Select the correct statements about collaboration software.

Allows for the creation of a dedicated workspace where users can add data and workflows. Many of today's collaboration software programs are cloud-based, removing the need to users to have specific software download on a device. Dedicated workspaces are viewable and editable (based on assigned privileges) by users regardless of their physical location

Which of the following are considered major cloud service providers? More than one answer may be correct.

Amazon Web Services (AWS) offers a broad set of global cloud-based products. Google Cloud offers a suite of modular cloud computing services. Kamatera Performance Cloud offers a range of flexible cloud infrastructure services.

Allow smartphones to receive an analog sound wave, such as a person's voice, and convert it to a digital signal that can be processed and stored by a computer.

Analog-Digital Converter (ADC)

Transmits cell phone signals to the cellular system's mobile switching station.

Base Transceiver Station (BTS)

According to the National Institute of Standards and Technology (NIST) which of the following are characteristics of Cloud computing? More than one answer may be selected.

Broad network access Resource pooling On-demand self-service

Why is the software market so difficult for some companies to enter?

Building and maintaining a software can be very complex because it can be a long process which requires a great team with knowledge and expertise.

Select the true statements about Content Delivery Networks (CDN).

CDNs provide more efficient delivery of Internet and Web content because the closer the CDN server is to the user geographically, the faster the content will be delivered. PoPs include various caching servers that assist in delivering content to website visitors within its operational proximity. CDNs are geographically distributed network server groups that work together to deliver web pages and other web content to users.

What is the key reason to implement cloud computing into one's personal and/or business data and information processing?

Cloud computing diminishes the need to store files and software on a local drive.

Reduces expenditures on IT infrastructure and hard disk space

Cost Savings

Select all of the characteristics of that explain how the Internet works.

Data is transferred from one network to another network through hardware called routers. Data on the Internet is usually stored on specialized computers called servers. The connections points in the Internet are called nodes.

Select the true statements about sending information on the Internet.

Devices connect to the Internet or a network using network cables or wireless technologies. Each device connecting to the Internet or a network must have a network interface card (NIC) installed. Modems and routers are connected to the Internet via an Internet Service Provider (ISP).

A small computer within your smartphone that analyzes the sounds entering your phone through the analog/digital converter.

Digital Signal Processor (DSP)

Allows IP addresses to be translated in to recognizable words which are much easier to remember than a set of numbers.

Domain Name System (DNS)

Common methods to connect a LAN to the Internet include which of the following?

Ethernet cables Fiber optic cables Coaxial cables

Software as a Service has many benefits. Which of the following is not one of the benefits of SaaS?

Even though there is a large investment needed for SaaS, it can still be very beneficial to organizations of all sizes.

A server is a group of two or more devices/computers that are connected to allow them to exchange information and share resources.

False A group of two or more devices/computers that are connected to allow for the exchange of information and the sharing of resources (such as printers, files, and servers) is called a network, not a server.

Cryptocurrency allows people to share a digital ledger across a network of computers without a central source of control because no single entity has the ability to tamper with the records.

False Cryptocurrency is a digital currency that exists only on computers. Blockchain is what allows people to share a tamper-proof digital ledger across a network of computers. While cryptocurrency transfers are recorded via blockchain, the cryptocurrency itself does not have the same properties as blockchain.

Trello is a collaboration hub that is composed of channels where teams and members of the organization can communicate, thus replacing email and making communication seamless.

False Trello is not a collaboration hub focused on seamless communication without email; it supports collaboration using visual representations of data.

The number that is assigned to all information technology devices (routers, modems, etc.) which identifies the device and allows the device the ability to communicate with each other on a computer network, including the Internet is called an Internet ___ adress

IP

Four-decimal notation such as 182.124.7.9. This allows for approximately 4 billion IPv4 addresses.

IPv4

Uses a format such as 2001:0db8:85a3:0000:0000:8a2e:0370:7334 and can accommodate at least 340 undecillion addresses.

IPv6

Select the correct statements about Infrastructure as a Service (IaaS).

IaaS is an instant computing infrastructure composed of processing, data storage, and a variety of other computing resources provided by a cloud vendor. IaaS helps organizations avoid the cost of acquiring and managing their own physical servers and datacenter architecture.

Select what's true about Cloud computing in today's business environment. More than one answer may be selected.

In the United States, 96% of all organizations use the Cloud in one form or another. 70% of global businesses backup some portion of their data using a Cloud service provider. 93% of small businesses backup some portion of their data using a Cloud provider.

Connect LANs, WANs, and other internets together.

Internets

What are the characteristics of cryptocurrency?

It is not issued by a central bank. It is not backed by any assets. Its value depends largely on the supply and demand for it.

What are two characteristics of cryptocurrency?

It is not portable. It has a fluctuating price.

A type of network that connects devices at a single site within a limited geographic range is called a __ area

LAN

Connect a variety of devices at a single site such as an office or retail store.

LAN

While there are many benefits of Cloud computing, there are also some disadvantages. One of the disadvantages is __. Cloud infrastructure is owned, managed, controlled, and monitored by the Cloud service provider. This means the customer often has little control over Cloud service processes and procedures.

Limited Control

Why are so many companies switching to Office 365?

Many companies are switching to Office 365 because this application allows their employees to work from anywhere.

Which of the following are examples of Software as a Service (Saas)? More than one answer may be selected.

Microsoft Office 365 Smartsheet Google apps

Controls all the transmissions between cellular phone towers and their base transceiver stations.

Mobile Switching Station

What's the main advantage for deploying modular applications to the cloud?

Modular applications are easier to change.

Which of the following services are often provided by Platform as a Service (PaaS) vendors. More than one answer may be selected.

Multi-language program development Provide mobile software development kits (SDKs) that assist in app development. Hosting of hardware and software

Select what is true about computer networks. More than one answer may be selected.

Networks range in size from small home networks to the Internet, which is the world's largest network A network is a group of two or more devices/computers connected together Computer networks support many different software applications

Connect devices around an individual. PANs typically involve laptops, tablets, and smartphones.

PAN

The basic types of computer networks include which of the following? More than one answer may be correct.

PAN,LAN,WAN

Which of the following are considered a basic type of computer network? You may select more than one.

Personal area network (PAN) Local area network (LAN) Wide area network (WAN)

Which of the following functions are provided by an Internet Service Provider (ISP)? More than one answer may be selected.

Provide access or a gateway to the resources on the Internet Your ISP pays for access to the Internet Provide an Internet Protocol (IP) address

What is Software as a Service or SaaS and how is it used?

SaaS is a service that allows users to gain access to an application using the Internet.

SaaS is a growing industry and many organizations want to enter the market. Which of the following is not something to consider when trying to enter this market?

Sales representatives are not necessary because SaaS can sell itself.

What were some of the challenges that Microsoft faced when they transitioned to Office 365?

Some of the challenges that Microsoft faced when they transitioned to Office 365 were keeping the user accounts secure and the fact that support was taken care of by the providers.

IP address that are permanently assigned.

Static IP address

Why did Microsoft decide to transition to providing Software as a Service?

The employees of Microsoft believed that the customers of Microsoft would prefer to purchase Microsoft 365 because it can be easily downloaded using the Internet.

A project manager needs to assess how much progress her team has made on the project, to provide executives with a weekly update. Which collaboration software program will be most useful for assessing the project's status?

Trello

Platform as a service is a cloud-based computing model where cloud service providers host the hardware and software needed for development on their own infrastructure, removing the need for developers to install this on their own devices.

True

Web 3.0 is the next evolution in the development of the World Wide Web and is built to support a variety of applications and services including: (More than one answer may be selected.)

Ubiquitous computing IoT Saas

Select all of the correct statements about Transmission Control Protocol/Internet Protocol.

Used as a private network communications protocol for private networks including intranets and extranets Covers how software applications communicate across networks and how data packets are assembled and reassembled once they reach their destination A suite of communication protocols (standards/rules/guidelines) used to connect devices to the Internet

Virtual Private Networks (VPNs) are commonly used by organizations to securely send communications. Select the correct statements about VPNs.

VPN software authenticates the users and establishes a secure connection. A VPN creates a secure connection between two computers. Used by organizations whose employees need access to a company network remotely.

Which of the following are correct statements about web services? More than one answer may be selected.

Web services allow for the exchange of information between two systems and are not tied to any one operating system or programming language. Web services are a set of software technologies that are able to exchange information with each other using standardized web communication protocols and languages. Web services can be used to create apps that link different systems of different organizations and to build open-standard based web applications.

What is the second step that occurs when placing a call on a cellular network?

Your voice is converted by your phone to an electrical signal that is transmitted via radio waves to the nearest cell tower.

How much network capacity should businesses typically maintain?

about twice peak demand

If a company wants to create a secure computer network that can be accessed and used solely by its employees, it should create

an intranet.

The group of applications that require network communication and are used by people to facilitate communication. These include email and messaging applications

application

Allowing people to share a digital ledger across a network of computers, ___ uses computer code to create concatenated (linked together) blocks of transactions.

blockchain

A computing model where processing, storage, software, applications, and a variety of services are provided over a network, mainly access via the Internet is called _ computing

cloud

Offers a broad set of global Cloud-based products including compute, storage, databases, analytics, networking, mobile, developer tools, management tools, IoT, security, and enterprise solutions. matches Choice, Amazon Web Services (AWS) Amazon Web Services (AWS) Offers a suite of modular Cloud computing services including data storage, data analytics, computing, and machine learning. Google also offers serverless computing, IaaS, and PaaS. matches Choice, Google Cloud Google Cloud Offers a range of flexible Cloud infrastructure services including Cloud servers, cloud block storage, private cloud network, cloud firewall, and fully managed Cloud. matches Choice, Kamatera Performance Cloud Kamatera Performance Cloud Offers cloud solutions for Customer Relationship Management (CRM) and Enterprise Resource Planning (ERP). matches Choice, Salesforce Salesforce

cloud providers

Amazon, Kamatera, Salesforce, and Google are all examples of

cloud service providers.

Cloud services are subject to planned and unplanned downtime. Downtime can occur because of maintenance, system/mechanical failure, natural disasters, and outside intrusions/attacks. matches Choice, Downtime Downtime Cloud service providers do their best to implement the best security measures they can. These security measures often align with security and governmental standards. matches Choice, Security Security Cloud infrastructure is owned, managed, controlled, and monitored by the Cloud service provider. This means the customer often has little control over cloud service processes and procedures. matches Choice, Limited Control Limited Control Also known as vendor lock-in, vendor agreements make switching between cloud services somewhat difficult. A vendor agreement is a signed contract with the Cloud service provider for their services. matches Choice, Vendor Agreements Vendor Agreements

cloudss

Enables organizations to communicate and share data/information more efficiently. Collaboration is facilitated because multiple users can share and work on files at the same time.

collaboration

What fundamental concern initially led Intuit to adopt Amazon Web Services?

costs of idle hardware

Handles the physical parts of sending and receiving data. Data can be sent via wireless networks, Ethernet cable, network interface cards (NIC), etc.

datalink

Makes data backup and recovery easier because critical data are stored offsite and in multiple locations.

disaster recovery

Businesses have found that though their reliance on internal IT infrastructure has increased, while their costs are reduced when using the cloud.

false Businesses, large and small, decrease reliance on their IT infrastructures and also reduce costs by taking advantage of cloud technologies.

Allows for the access of data, files, and programs when you are off-site or at home via web-enabled devices.

flexibility

The name "Blockchain" refers to how data are stored using this technology. Blockchain stores transaction data in blocks. Each block in the blockchain contains a _____ that is a digital fingerprint or unique identifier that helps to create secure transactions.

hash

An instant computing infrastructure composed of processing, data storage, and a variety of other computing resources provided by a Cloud vendor to assist in running an organization's information systems is referred to as _ as a service

infrastructure

While bitcoin is one of the most well-known cryptocurrencies, there are others. Which of the following are popular cryptocurrencies? More than one answer may be selected.

litecoin and ethereum

A PaaS vendor offers its clients the ability to quickly build a customer loyalty app that allows customers to earn points for every purchase. The client chooses what features they'd like the app to have from a predetermined list of choices. What is this an example of?

mobile software development kit

A group of two or more devices/computers connected together to allow for the exchange of information and for the sharing of resources is call a _____.

network

What type of computer users are considered miners?

people who validate cryptocurrency transactions on the digital ledger

A Cloud-based computing model where Cloud service providers offer hardware and software tools need for application/software development via the Internet is called _ as a service

platform

When a user has determined their destination, GIS can assist in providing directions. This is called

route information.

After Intuit migrated numerous applications to Amazon Web Services, it

shut down data centers; they were no longer needed.

An online project management software solution. This software focuses on the collaborative aspects of project management. You can create web forms and sheets (similar to a spreadsheet). matches Choice, Smartsheet Smartsheet A collaboration hub that aims to replace email and make communication seamless. This software is composed of channels where teams and members of the organization can communicate. matches Choice, Slack Slack A collaboration tool that organizes projects into boards. This creates a visual representation of what's being worked on, who's doing the work, and where something is in a process. matches Choice, Trello Trello

smartsheet

There are a number of Cloud service vendors that provide a variety of Cloud services. Generally, Cloud computing services are classified in three ways: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and _ as a Service (SaaS).

software

Which Web 2.0 feature utilizes application programming interfaces (APIs) to automate web content and/or processes?

software as a service (SaaS)

What is the second criteria necessary for adding a block to the blockchain?

transaction verification

Divides data into packets and acknowledges the packets have been received

transport

Created in 2015, ethereum is the second most valuable cryptocurrency after bitcoin. Its cryptocurrency is called an ether.

true