Term
In which of the folliwing areas does a WAN differ from an internetwork?
a. WANs use service providers for the network connection
b. WANs cant transport network layer protocols
c. WANs use serial connectin technologies that can span miles
d. WANs dont use routers |
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Term
Which of the following is a device used to make WAN connections (choose all that apply)
a. 10BaseT hub
b. CSU/DSU
c. router
d. ethernet repeater |
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Definition
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Term
| What is a digital signal? |
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Definition
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Term
For what purpose is a CSU/DSU used?
a. Moduates a digital signal into an analog signal
b. creates a digitial connection between a LAN device and the WAN link
b. routes packets from the LAN to the WAN
d. creates a WAN connection over the PSTN |
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Definition
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Term
Which of the following is a common WAN connection method?
a. circuit switched
b. Packet leased
c. VPN over POTS
d. packet switched |
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Term
Which of the following is true about ISDN?
a. It uses a modem to modulate/demodulate the signal
b. Its BRI format consists of two B channels and on D channel
c. Its PRI format provides bandwidth up to 128 Kbps
d. It uses a terminal adapter to connect to the network |
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Definition
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Term
Which of the following is a typical situation where leased lines should be considered?
a. occasional use of the WAN link is needed
b. 24/7 access is required
c. fast upstream and downstream comms are needed
d.You want to pay only for the bandwidth you use |
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Definition
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Term
Which of the fing combines several communucation streams into a single faster comms stream?
a. multiplexing
b. demultiplexing
c. CSU
d. DSU |
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Definition
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Term
Which physical topology does SONET readily support?
a. point to point
b. star
c. ring
d. bus |
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Definition
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Term
Which of the following technologies uses packet switching?
a. ISDN
b. Frame relay
c. T1
d. x.25 |
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Definition
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Term
Which of the following technologies provides permanent virtua circuits?
a. PSTN
b. Frame relay
c. x.25
d. ISDN |
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Definition
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Term
| Which technology uses 53 byte cells? |
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Definition
| ATM - anasynchronous transmission mode |
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Term
| To maintain security, WAN connections over the internet should use what? |
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Definition
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Term
What type of device is required to connect to a dedicated digital comms line?
a. modem
b. NIC
c. CSU/DSU
d. LANE |
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Definition
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Term
| Which term best describes the place in a WAN connection where the customers responsibility ends and the providers begins? |
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Definition
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Term
Which of the following places data on the local loop?
a. DCE
b. DTE
c. router
d. CPE |
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Definition
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Term
Which of the following is the equipment at the customers site that is the customers responsibility?
a. DTE
b. DCE
c. Demarcation point
d. CPE |
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Definition
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Term
Which of the following is a VPN protocol supported by windows remote access (choose all that apply)?
a. PPTP
b. L2TP
c. HTTP
d. SSTP |
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Definition
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Term
Which is a component of the PPP protocol?
a. Link control protocol
b. NCP
c. VPN
d. RDP |
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Definition
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Term
Which of the following can best be described as developing apps by using a service providers dev tools and infrastructure?
a. hosted applications
b. hosted networks
c. hosted platforms
d. hosted infrastructure |
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Definition
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Term
| Which wireless WAN technology has a standard for fixed and mobile devices? |
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Definition
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Term
| Which wireless WAN technology might not be suitable for voice applications because of latency? |
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Definition
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