CN Final (6.0)

Which statement best describes a WAN?

• A WAN interconnects LANs over long distances.

• A WAN is a public utility that enables access to the Internet.

• WAN is another name for the Internet.

• A WAN is a LAN that is extended to provide secure remote network access.

Connecting offices at different locations using the Internet can be economical for a business. What are two important business policy issues that should be addressed when using the Internet for this purpose? (Choose two.)

• addressing

• bandwidth

• privacy

• security

• WAN technology

What is a disadvantage of a packet-switched network compared to a circuit-switched network?

• higher cost

• fixed capacity

• less flexibility

• higher latency

A company is considering updating the campus WAN connection. Which two WAN options are examples of the private WAN architecture? (Choose two.)

• cable

• leased line

• Ethernet WAN

• municipal Wi-Fi

• digital subscriber line

Which statement describes a characteristic of dense wavelength division multiplexing (DWDM)?​

• It supports the SONET standard, but not the SDH standard​.

• It enables bidirectional communications over one pair of copper cables.

• It can be used in long-range communications, like connections between ISPs.

• It assigns incoming electrical signals to specific frequencies.

Which WAN technology can serve as the underlying network to carry multiple types of network traffic such as IP, ATM, Ethernet, and DSL?

• ISDN

• MPLS

• Frame Relay

• Ethernet WAN

Which two WAN technologies are more likely to be used by a business than by teleworkers or home users? (Choose two.)

• cable

• DSL

• Frame Relay

• MetroE

• VPN

The security policy in a company specifies that the staff in the sales department must use a VPN to connect to the corporate network to access the sales data when they travel to meet customers. What component is needed by the sales staff to establish a remote VPN connection?

• VPN gateway

• VPN appliance

• VPN concentrator

• VPN client software

A corporation is searching for an easy and low cost solution to provide teleworkers with a secure connection to headquarters. Which solution should be selected?

• dial-up connection

• leased line connection

• site-to-site VPN over the Internet

• remote access VPN over the Internet

How many DS0 channels are bundled to produce a 1.544 Mbps T1 line?

• 2

• 12

• 24

• 28