CCNA 4 R&S: Connecting Networks Chapter 2 v5.0
Exam Answers
1.
Which WAN technology is cell-based and well suited to
carry
voice and video traffic?
VSAT ISDN
Frame Relay
ATM*
2.
Which WAN connectivity method would be used in a remote location where there are no
service provider networks?
VPN WiMAX
cable VSAT*
3.
Which network scenario will require the use of a WAN?
Employees need to access web
pages that are hosted on the
corporate web servers
in the DMZ within their
building.
Employees need to connect to the corporate email
server through a VPN
while traveling.*
Employee workstations
need
to obtain dynamically assigned IP addresses.
Employees in the branch office need
to share files with
the headquarters
office that is located in a
separate building on the same campus
network.
4
Which two technologies use the PSTN network to provide an Internet connection? (Choose two.)
ATM ISDN* Frame Relay
MPLS
dialup*
5
Which geographic scope requirement would be considered a distributed WAN
scope?
regional
one-to-one
global
global
local
one-to-many
many-to-many*
6.
What are two advantages of packet switching over circuit switching?
(Choose two.)
A connection
through the service provider network
is established quickly before communications start. There are fewer delays
in the data communications processes.
The communication costs
are
lower.
Multiple pairs
of nodes can communicate over the same network channel.*
A dedicated secure circuit
is established between
each
pair of communicating nodes.
7.
Which connectivity method would be best for a corporate employee who
works from home two days
a week, but needs
secure access to
internal corporate databases?
WiMAX
DSL
cable
8.
Place the options in the following order:
not scored
CPE
Local Loop
not scored
DTE
DCE
9.
Which wireless technology provides Internet access
through cellular networks?
satellite
municipal WiFi LTE*
WiMAX
10.
What is
a requirement of a
connectionless packet-switched network?
Full addressing
information must be carried in each data packet.*
A virtual
circuit
is created for the duration of
the packet delivery.
Each packet
has to carry only an identifier.
The network predetermines the
route for a packet.
11.
A customer needs
a WAN virtual connection that provides
high-speed, dedicated bandwidth between two
sites. Which type of WAN
connection would best fulfill this need?
circuit-switched network
packet-switched network
MPLS
Ethernet WAN*
12.
Which WAN technology establishes
a dedicated constant point-to-point connection
between two sites?
ATM
Frame Relay
leased lines* ISDN
13.
A company needs
to interconnect several branch offices across
a metropolitan area.
The
network engineer is
seeking a solution that provides high-speed converged traffic,
including voice,
video,
and data on the same network infrastructure.
The
company also wants
easy integration to
their existing LAN
infrastructure in their office locations.
Which technology
should be recommended?
Frame Relay
Ethernet WAN* ISDN
VSAT
14.
A home user lives within 10
miles (16
kilometers) of the Internet provider network. Which type of technology provides high-speed broadband service with wireless
access for this home user?
WiMAX*
DSL
802.11
municipal
Wi-Fi
15.
Which two devices
are
needed when a
digital leased line is
used to
provide a connection between the
customer and the service provider?
(Choose two.)
dialup modem
access server DSU*
CSU*
Layer 2 switch
16.
Place the options in the following order:
uses traditional video network
uses
traditional
phone network
set up by
a city to provide free Internet access
slow access
(upload speed is about one-tenth download speed)
– not scored -
17.
What is
a feature of dense wavelength-division multiplexing (DWDM) technology?
It replaces SONET
and SDH technologies.
It provides Layer 3 support for long distance data communications.
It provides a 10
Gb/s multiplexed signal
over analog copper telephone lines.
It enables
bidirectional communications over one strand of fiber.*
18.
What is
the recommended technology
to use over a public WAN infrastructure when a branch office is
connected to the corporate site?
municipal
Wi-Fi
VPN*
ATM ISDN
19.
A small company
with 10 employees uses a single LAN
to share information between computers. Which type of connection to the Internet would be appropriate for this company?
a broadband service, such as
DSL, through their local service provider*
a dialup
connection that is supplied by their local telephone
service provider
Virtual
Private Networks that
would enable the company to
connect easily and
securely with
employees private dedicated lines
through their local service provider
20.
What is
a long distance fiber-optic media
technology
that supports both SONET and SDH, and assigns incoming optical
signals to specific wavelengths of light?
MPLS
ISDN
DWDM*
21.
A new corporation needs
a data
network that must meet certain requirements.
The
network must
provide a
low cost connection
to sales people dispersed over a
large geographical
area. Which two types
of WAN infrastructure would meet the requirements? (Choose two.)
private infrastructure dedicated
public infrastructure* Internet*
satellite
22.
What are two common high-bandwidth fiber-optic media
standards?
(Choose two.)
ANSI
ATM
SDH*
SONET*
