CCNA 4 Chapter 1 Exam Answers
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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*
Layer 2 switch
CSU* -
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.
The network predetermines the route for a packet.
Each packet has to carry only an identifier. -
What is an advantage of packet-switched technology over circuit-switched technology?
Packet-switched networks do not require an expensive permanent connection to each endpoint.
Packet-switched networks can efficiently use multiple routes inside a service provider network.*
Packet-switched networks are less susceptible to jitter than circuit-switched networks are.
Packet-switched networks usually experience lower latency than circuit-switched networks experience. -
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
public infrastructure*
satellite
Internet*
dedicated -
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?
DWDM*
ISDN
MPLS
ATM -
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?
private dedicated lines 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
a broadband service, such as DSL, through their local service provider* -
Which network scenario will require the use of a WAN?
Employees need to connect to the corporate email server through a VPN while traveling.*
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.
Employees need to access web pages that are hosted on the corporate web servers in the DMZ within their building.
Employee workstations need to obtain dynamically assigned IP addresses. -
Which statement describes a characteristic of a WAN?
A WAN operates within the same geographic scope of a LAN, but has serial links.
A WAN provides end-user network connectivity to the campus backbone.
WAN networks are owned by service providers.*
All serial links are considered WAN connections. -
What are two common types of circuit-switched WAN technologies?
(Choose two.)
ISDN*
DSL
PSTN*
ATM
Frame Relay -
What are two common high-bandwidth fiber-optic media standards?
(Choose two.)
SONET*
SDH*
ANSI
ATM
ITU -
Which WAN technology is cell-based and well suited to carry voice and video traffic?
VSAT
Frame Relay
ISDN
ATM* -
Which two technologies use the PSTN network to provide an Internet connection?
(Choose two.)
MPLS
ATM
dialup*
Frame Relay
ISDN* -
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
ISDN
VSAT
Ethernet WAN* -
Which solution can provide Internet access to remote locations where no regular WAN services are available?
WiMAX
VSAT*
Ethernet
municipal Wi-Fi -
Which WAN technology establishes a dedicated constant point-to-point connection between two sites?
ATM
Frame Relay
ISDN
leased lines* -
A customer needs a metropolitan area WAN connection that provides high-speed, dedicated bandwidth between two sites. Which type of WAN connection would best fulfill this need?
MPLS
Ethernet WAN*
circuit-switched network
packet-switched network -
Which feature is used when connecting to the Internet using DSL?
DSLAM*
LTE
CMTS
IEEE 802.16 -
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
VPN*
cable -
Which wireless technology provides Internet access through cellular networks?
LTE*
municipal WiFi
satellite
WiMAX -
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?
municipal Wi-Fi
DSL
WiMAX*
802.11 -
What is the recommended technology to use over a public WAN infrastructure when a branch office is connected to the corporate site?
VPN*
ATM
ISDN
municipal Wi-Fi -
What can cause a reduction in available bandwidth on a cable broadband connection?
committed information rate
number of subscribers*
distance from the central office of the provider
smaller cells -
Which equipment is needed for an ISP to provide Internet connections through cable service?
access server
CMTS*
CSU/DSU
DSLAM -
Which geographic scope requirement would be considered a distributed WAN scope?
one-to-many
global
regional
local
many-to-many*
one-to-one -
A corporation is looking for a solution to connect multiple, newly established remote branch offices. Which consideration is important when selecting a private WAN connection rather than a public WAN connection?
higher data transmission rate
lower cost
data security and confidentiality during transmission*
website and file exchange service support -
Question as presented:
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Question as presented:
