Chapter 1 Flashcards
(16 cards)
- 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 Internet solutions provide an always-on, high-bandwidth connection to computers on a LAN?
DSL
cable
The acronym ____ refers to the trend of end users being able to use their personal devices to access the business network and resources.
BYOD
- Which description correctly defines a converged network?
a single network channel capable of delivering multiple communication forms
Not suited for heavily wooded areas
typically has very low bandwidth
splits the access line into three signals
uses coaxial cable as a medium
Satellite
Dialup phone
DSL
Cable
Web pages that groups of people can edit and view together ->
Interactive websites where people created and share user-generated content with friends and family ->
real-time communication of between two or more people ->
an audio-based medium that allows people to deliver their recordings to a wide audience ->
Wiki
Social media
Instant messaging
Podcast
- > the assurance that the information has not been altered during transmission
- > only the intended recipients can access and read the data
- > the assurance of timely and reliable access to data
maintaining integrity
ensuring confidentiality
ensuring availability
Which statement describes a characteristic of cloud computing?
Applications can be accessed over the Internet through a subscription.
- What is a characteristic of circuit-switched networks?
If all circuits are busy, a new call cannot be placed.
- Requiring strong, complex passwords is a practice that supports which network security goal?
ensuring data confidentiality
- What two criteria are used to help select network media?
The distance the media can successfully carry a signal
the environment where the media is to be installed
- Which statement describes a network that supports QoS?
he network provides predictable levels of service to different types of traffic
- Which device performs the function of determining the path that messages should take through internetworks?
router
- Which two statements about the relationship between LANs and WANs are true?
WANs are typically operated through multiple ISPs, but LANs are typically operated by single organizations or individuals.
WANs connect LANs at slower speed bandwidth than LANs connect their internal end devices.
Which three network tools provide the minimum required security protection for home users?
antivirus software
antispyware software
a firewall
- Which expression accurately defines the term congestion?
a state where the demand on the network resources exceeds the available capacity
