Module 7

Which is a type of WAN carrier connection that provides redundancy?

• dual-carrier WAN connection
• single-carrier WAN connection

Which topology type describes the virtual connection between source to destination?

• cabling topology
• logical topology
• physical topology
• wired topology

Which two options describe a WAN? (Choose two.)

• A WAN is owned and managed by an organization or home user.
• A WAN provides networking services over large geographical areas.
• WAN services are provided for a fee.
• WANs guarantee security between the endpoints.
• WANs providers offer low bandwidth speeds over short-distances.

Which type of WAN network design is the most fault-tolerant?

• dual-homed topology
• fully meshed topology
• hub-and-spoke topology
• partially meshed topology
• point-to-point topology

Which communication method is used in all WAN connections?

• Circuit-Switched
• Packet-Switched
• Parallel
• Serial

Which service provider fiber-optic technology increases the data-carrying capacity using different wavelengths?

• DWDM
• SDH
• SONET

Which two devices operate in a similar manner to the voiceband modem but use higher broadband frequencies and transmission speeds. (Choose two.)

• Cable Modem
• CSU/DSU
• DSL Modem
• Optical Converter
• Voiceband Modem

Which two statements about the WAN OSI Layer 1 are true? (Choose two.)

• It describes how data will be encapsulated into a frame.
• It describes the electrical, mechanical, and operational components needed to transmit bits.
• It includes protocols such as PPP, HDLC, and Ethernet.
• It includes protocols such as SDH, SONET, and DWDM.

Which two WAN connectivity options are circuit-switched technologies? (Choose two.)

• ATM
• Ethernet WAN
• Frame Relay
• ISDN
• PSTN

Which two WAN connectivity options are packet-switched technologies? (Choose two.)

• Ethernet WAN
• Frame Relay
• ISDN
• PSTN