CCNA Introduction to Networks Chapter 1
What is a characteristic of circuit-switched networks? A. If all circuits are busy, a new call cannot be placed. B. Circuit-switched networks can dynamically learn and use redundant circuits. C. If a circuit fails, the call will be forwarded on a new path. D. A single message can be broken into multiple message blocks that are transmitted through multiple circuits simultaneously.
A. If all circuits are busy, a new call cannot be placed.
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? A. TelePresence B. weblog C. instant messaging D. wiki
A. TelePresence
Which statement describes a network that supports QoS? A. The network provides predictable levels of service to different types of traffic. B. The fewest possible devices are affected by a failure. C. Data sent over the network is not altered in transmission. D. The network should be able to expand to keep up with user demand.
A. The network provides predictable levels of service to different types of traffic.
What are two functions of intermediary devices on a network? (Choose two.) A. They direct data along alternate pathways when there is a link failure. B. They form the interface between the human network and the underlying communication network. C. They are the primary source and providers of information and services to end devices. D. They run applications that support collaboration for business. E. They filter the flow of data, based on security settings.
A. They direct data along alternate pathways when there is a link failure. E. They filter the flow of data, based on security settings.
Which two statements about the relationship between LANs and WANs are true? (Choose two.) A. WANs connect LANs at slower speed bandwidth than LANs connect their internal end devices. B. Both LANs and WANs connect end devices. C. WANs must be publicly-owned, but LANs can be owned by either public or private entities. D. The Internet is a WAN. E. WANs are typically operated through multiple ISPs, but LANs are typically operated by single organizations or individuals.
A. WANs connect LANs at slower speed bandwidth than LANs connect their internal end devices. E. WANs are typically operated through multiple ISPs, but LANs are typically operated by single organizations or individuals.
Which two Internet solutions provide an always-on, high-bandwidth connection to computers on a LAN? (Choose two.) A. cable B. cellular C. satellite D. DSL E. dial-up telephone
A. cable D. DSL
Requiring strong, complex passwords is a practice that supports which network security goal? A. ensuring data confidentiality B. ensuring reliability of access C. ensuring redundancy D. maintaining communication integrity
A. ensuring data confidentiality
What two criteria are used to help select network media? (Choose two.) A. the distance the media can successfully carry a signal B. the environment where the media is to be installed C. the types of data that need to be prioritized D. the cost of the end devices utilized in the network E. the number of intermediary devices installed in the network
A. the distance the media can successfully carry a signal B. the environment where the media is to be installed
Which statement describes a characteristic of cloud computing? A. A business can connect directly to the Internet without the use of an ISP. B. Applications can be accessed over the Internet through a subscription. C. Devices can connect to the Internet through existing electrical wiring. D. Investment in new infrastructure is required in order to access the cloud.
B. Applications can be accessed over the Internet through a subscription.
Which expression accurately defines the term congestion? A. a method of limiting the impact of a hardware or software failure on the network B. a state where the demand on the network resources exceeds the available capacity C. a set of techniques to manage the utilization of network resources D. a measure of the data carrying capacity of the network
B. a state where the demand on the network resources exceeds the available capacity
Which three network tools provide the minimum required security protection for home users? (Choose three.) A. powerline networking B. antivirus software C. antispyware software D. a firewall E. an intrusion prevention system F. access control lists
B. antivirus software C. antispyware software D. a firewall
Which two Internet connection options do not require that physical cables be run to the building? (Choose two.) A. dialup B. cellular D. satellite E. DSL F. dedicated leased line
B. cellular D. satellite
The acronym __________ refers to the trend of end users being able to use their personal devices to access the business network and resources.
BYOD
Refer to the exhibit. Which set of devices contains only intermediary devices? A. C, D, G, I B. G, H, I, J C. A, B, D, G D. A, B, E, F
C. A, B, D, G
Which device performs the function of determining the path that messages should take through internetworks? A. a firewall B. a web server C. a router D. a DSL modem
C. a router
Which description correctly defines a converged network? A. a dedicated network with separate channels for video and voice services B. a network that is limited to exchanging character-based information C. a network that allows users to interact directly with each other over multiple channels D. a single network channel capable of delivering multiple communication forms
D. a single network channel capable of delivering multiple communication forms
What type of network must a home user access in order to do online shopping? A. a local area network B. an intranet C. an extranet D. the Internet
D. the Internet
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. intranet B. wired LAN C. extranet D. wireless WAN E. wireless LAN
E. wireless LAN
