25. During a routine inspection, a technician discovered that software that was installed on a
computer was secretly collecting data about websites that were visited by users of the
computer. Which type of threat is affecting this computer?
The term Internet refers to the worldwide collection of connected networks.
Intranet refers to a private connection of LANs and WANS that belong to an organization and is
designed to be accessible to the members of the organization, employees, or others with
authorization. Extranets provide secure and safe access to suppliers, customers, and
collaborators. Extendednet is not a type of network.
27. A large corporation has modified its network to allow users to access network resources from
their personal laptops and smart phones. Which networking trend does this describe?
BYOD allows end users to use personal tools to access the corporate network.
Allowing this trend can have major impacts on a network, such as security and compatibility
with corporate software and devices.
28. What is an ISP?
A. It is a standards body that develops cabling and wiring standards for networking.
B. It is an organization that enables individuals and businesses to connect to the Internet.
C. It is a protocol that establishes how computers within a local network communicate.
D. It is a networking device that combines the functionality of several different networking devices in one.
Wireless Internet Service Providers (WISPs) are typically found in rural areas
where DSL or cable access is not available. A dish or antenna on the property of the subscriber
connects wirelessly to a WISP transmitter, eliminating the need for physical cabling outside the
30. What characteristic of a network enables it to quickly grow to support new users and applications
without impacting the performance of the service being delivered to existing users?
Networks must be able to quickly grow to support new users and services, without
impacting existing users and services. This ability to grow is known as scalability.
31. A college is building a new dormitory on its campus. Workers are digging in the ground to install
a new water pipe for the dormitory. A worker accidentally damages a fiber optic cable that
connects two of the existing dormitories to the campus data center. Although the cable has been
cut, students in the dormitories only experience a very short interruption of network services.
What characteristic of the network is shown here?
Fault tolerance is the characteristic of a network which allows it to quickly respond
to failures of network devices, media, or services. Quality of service refers to the measures taken
to ensure that network traffic requiring higher throughput receives the required network
resources. Scalability refers to the ability of the network to grow to accommodate new
requirements. Security refers to protecting networks and data from theft, alteration, or
destruction. Integrity refers to the completeness of something and is generally not used as a
characteristic of networks in the same way as the other terms.
32. What are two characteristics of a scalable network? (Choose two.)
A. Offers limited number of applications
B. Suitable for modular devices that allow for expansion
A router is used to determine the path that the messages should take through the
network. A firewall is used to filter incoming and outgoing traffic. A DSL modem is used to
provide Internet connection for a home or an organization.
34. Which two Internet connection options do not require that physical cables be run to the building?
Home users will go online shopping over the Internet because online vendors are
accessed through the Internet. An intranet is basically a local area network for internal use only.
An extranet is a network for external partners to access certain resources inside an organization.
A home user does not necessarily need a LAN to access the Internet. For example, a PC connects
directly to the ISP through a modem.
36. How does BYOD change the way in which businesses implement networks?
A. BYOD users are responsible for their own network security, thus reducing the need for organizational security policies.
B. BYOD provides flexibility in where and how users can access network resources.
C. BYOD devices are more expensive than devices that are purchased by an organization.
D. BYOD requires organizations to purchase laptops rather than desktops.
A BYOD environment requires an organization to accommodate a variety of devices and access methods. Personal devices, which are not under company control, may be involved, so security is critical. Onsite hardware costs will be reduced, allowing a business to focus on delivering collaboration tools and other software to BYOD users.
37. An employee wants to access the network of the organization remotely, in the safest possible
way. What network feature would allow an employee to gain secure remote access to a company
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. A private network for an organization with
LAN and WAN connections is an intranet.
39. What are two functions of end devices on a network? (Choose two.)
A. They originate the data that flows through the network.
B. They filter the flow of data to enhance security.
C. They provide the channel over which the network message travels.
D. They are the interface between humans and the communication network.
E. They direct data over alternate paths in the event of link failures.
End devices originate the data that flows through the network. Intermediary devices
direct data over alternate paths in the event of link failures and filter the flow of data to enhance
security. Network media provide the channel through which network messages travel.