CCNA 4 Chapter 1 V6.0 Answers

1. Match the connectivity type to the description. (Not all options are used.)

cable => uses traditional video network

DSL => uses traditional phone network

municipal Wi-Fi => set up by a city to provide free Internet access

satellite Internet => slow access (upload speed is about one-tenth download speed)

 

2. Match the type of WAN device or service to the descriptions. (Not all options are used.)

devices and inside wiring that are located on the enterprise edge and connect to a carrier link => CPE

a physical connection from the customer to the service provider POP => Local Loop

customer devices that pass the data from a customer network for transmission over the WAN => DTE

devices that provide an interface for customers to connect to within the WAN cloud => DCE

 

3. Which geographic scope requirement would be considered a distributed WAN scope?

global

one-to-one

one-to-many

many-to-many

local

regional

 

4. What can cause a reduction in available bandwidth on a cable broadband connection?

committed information rate

distance from the central office of the provider

number of subscribers

smaller cells

 

5. 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.

 

6. 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

ATM

VPN

ISDN

 

7. Which feature is used when connecting to the Internet using DSL?

DSLAM

IEEE 802.16

CMTS

LTE

 

8. Which statement describes a characteristic of a WAN?

All serial links are considered WAN connections.

WAN networks are owned by service providers.

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.

 

9. Which two technologies use the PSTN network to provide an Internet connection? (Choose two.)

dialup

Frame Relay

MPLS

ISDN

ATM

 

10. Which WAN technology establishes a dedicated constant point-to-point connection between two sites?

Frame Relay

ISDN

ATM

leased lines

 

11. 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.

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.

Employees need to connect to the corporate email server through a VPN while traveling.

 

12. 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?

Ethernet WAN

circuit-switched network

packet-switched network

MPLS

 

13. 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.)

DSU

Layer 2 switch

access server

CSU

dialup modem

 

14. What are two common types of circuit-switched WAN technologies? (Choose two.)

ATM

ISDN

DSL

Frame Relay

PSTN

 

15. 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

MPLS

ISDN

ATM

 

16. What are two common high-bandwidth fiber-optic media standards? (Choose two.)

SONET

ITU

ATM

ANSI

SDH

 

17. 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 are less susceptible to jitter than circuit-switched networks are.

Packet-switched networks can efficiently use multiple routes inside a service provider network.

Packet-switched networks usually experience lower latency than circuit-switched networks experience.

 

18. Which wireless technology provides Internet access through cellular networks?

satellite

LTE

WiMAX

municipal WiFi

 

19. Which solution can provide Internet access to remote locations where no regular WAN services are available?

Ethernet

VSAT

municipal Wi-Fi

WiMAX

 

20. 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

Internet

public infrastructure

satellite

 

21. 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?

DSL

WiMAX

VPN

cable

 

22. 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 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

private dedicated lines through their local service provider

 

23. 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

WiMAX

802.11

DSL

 

24. 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

VSAT

ISDN

 

25. Which WAN technology is cell-based and well suited to carry voice and video traffic?

VSAT

ATM

Frame Relay

ISDN

 

26. Which equipment is needed for an ISP to provide Internet connections through cable service?

DSLAM

CMTS

access server

CSU/DSU

 

27. 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

website and file exchange service support

data security and confidentiality during transmission