Chapter 1 exam questions

Purpose of a DSL Modem

A DSL modem is used to provide Internet connection for a home or an organization.

Which area of the network would a college IT staff most likely have to redesign as a direct result of many students bringing their own tablets and smartphones to school to access school resources?

A college wireless LAN is most likely used by the tablet and smartphone. A wireless WAN would more likely be used by college students to access their cell provider network.

What is a characteristic of a converged network?

A converged network is one in which multiple technologies such as data, telephone, and video are all delivered on the same network infrastructure.

Purpose of a firewall

A firewall is used to filter incoming and outgoing traffic

Which expression accurately defines the term bandwidth?

A measure of the data carrying capacity is bandwidth

Which expression accurately defines the term fault tolerance ?

A method of limiting the impact of a hardware or software failure is fault tolerance

Which device performs the function of determining the path that messages should take through internetworks?

A router is used to determine the path that the messages should take through the network.

Which expression accurately defines the term QoS ?

A set of techniques to manage the utilization of network resources is QoS.

Which expression accurately defines the term congestion?

A state where the demand on the network resources exceeds the available capacity

What is a wired LAN

A wired LAN is when devices are directly connected/ attach to the wired network.

An employee at a branch office is creating a quote for a customer. In order to do this, the employee needs to access confidential pricing information from internal servers at the Head Office. What type of network would the employee access?

An intranet is designed to be accessible only by the organization's members, employees, or others with authorization.

What is an Intranet

An intranet simply describes the network area that is normally accessed only by internal personnel. Intranet is a term used to refer to a private connection of LANs and WANs that belongs to an organization

Which three network tools provide the minimum required security protection for home users?

Antivirus Antispyware Firewall

The acronym ____ refers to the trend of end users being able to use their personal devices to access the business network and resources.

BYOD Bring Your Own Device

Which networking trend involves the use of personal tools and devices for accessing resources on a business or campus network?

BYOD, or bring your own device, is a trend in networking where users are allowed to use personal devices and tools on business and campus networks

Which two connection options provide an always-on, high-bandwidth Internet connection to computers in a home office

Cable and DSL both provide high bandwidth, an always on connection, and an Ethernet connection to a host computer or LAN.

Which two Internet connection options do not require that physical cables be run to the building?

Cellular connectivity requires the use of the cell phone network. Satellite connectivity is often used where physical cabling is not available outside the home or business.

Which statement describes a characteristic of cloud computing?

Cloud computing allows users to access applications, back up and store files, and perform tasks without needing additional software or servers. Cloud users access resources through subscription-based or pay-per-use services, in real time, using nothing more than a web browser.

What criteria are used to help select a network medium from various network media?

Criteria for choosing medium are: The distance the selected medium can successfully carry a signal, The environment in which the selected medium is to be installed The amount of data and the speed at which the data must be transmitted The cost of the medium and its installation.

Which two Internet solutions provide an always-on, high-bandwidth connection to computers on a LAN?

DLS Cable

What are two functions of end devices on a network?

End devices originate the data that flows through the network They are the interface between humans and the communication network.

The assurance of timely and reliable access to data

Ensuring Availability

Requiring strong, complex passwords is a practice that supports which network security goal?

Ensuring data confidentiality Only the intended recipients can access and read the data

What is a characteristic of circuit-switched networks?

If all circuits are busy, a new call cannot be places

A user is implementing security on a small office network. Which two actions would provide the minimum security requirements for this network?

Installing antivirus software, antimalware software, and implementing a firewall will usually be the minimum requirements for home networks

Which statements describe intermediary devices?

Intermediary devices direct the path of the data. Intermediary devices connect individual hosts to the network.

The assurance that the information has not been altered during transmission

Maintaining Integrity

What security violation would cause the most amount of damage to the life of a home user?

On a personal PC, denial of service to servers, worms and viruses, and spyware producing spam emails can be annoying, invasive, and frustrating. However, identity theft can be devastating and life altering.

Which statement describes the use of powerline networking technology?

Powerline networking adds the ability to connect a device to the network using an adapter wherever there is an electrical outlet.​ The network uses existing electrical wiring to send data. It is not a replacement for physical cabling, but it can add functionality in places where wireless access points cannot be used or cannot reach devices.​b

Which tool provides real-time video and audio communication over the Internet so that businesses can conduct corporate meetings with participants from several remote locations?

Tele-Presence

What is the Internet?

The Internet provides global connections that enable networked devices (workstations and mobile devices) with different network technologies, such as Ethernet, DSL/cable, and serial connections, to communicate.

Which statement describes a network that supports QoS?

The network provides predictable levels of service to different types of traffic

What are two functions of intermediary devices on a network?

They direct data along alternate pathways when there is a link failure. They filter the flow of data, based on security settings.

Which two statements about the relationship between LANs and WANs are true?

WANs connect LANs at slower speed bandwidth than LANs connect their internal end devices. WANs are typically operated through multiple ISPs, but LANs are typically operated by single organizations or individuals.

A ________ network is capable of delivering voice, video, text, and graphics over the same communication channels.

When one network is used for all types of communication such as voice, video, text, and graphics, the network is referred to as a converged network.

Which term describes the state of a network when the demand on the network resources exceeds the available capacity?

When the demand on the network resources exceeds the available capacity, the network becomes congested

Which description correctly defines a converged network?

a single network channel capable of delivering multiple communication forms

What is a podcast

an audio-based medium that allows people to deliver their recordings to a wide audience

A network administrator is implementing a policy that requires strong, complex passwords. Which data protection goal does this policy support?

data confidentiality

What is an extranet network

is a network area where people or corporate partners external to the company access data.

What are three characteristics of a peer-to-peer network?

peer-to-peer networks are: easy to create, less complex, have lower costs, no centralized administration, less secure, not scalable,

What is instant messaging

real-time communication between two or more people

What type of network traffic requires QoS?

video conferencing