Information Technology Reference
In-Depth Information
Q&A
1.
D. After analyzing the customer requirements, the next step is to characterize the
existing network.
2.
B. The enterprise edge modules connect to the enterprise campus via the campus core
module.
3.
D. The high speeds and relatively low cost of DSL make this a popular Internet access
technology for the enterprise telecommuter.
4.
C and D. DMZ/E-commerce, Internet, remote-access VPN, and WAN/MAN are mod-
ules that are found in the enterprise edge.
5.
A. The window size defines the upper limit of frames that can be transmitted without
getting a return acknowledgement. A larger window size uses a smaller number of
acknowledgements than smaller window sizes.
6.
B. WFQ is the default QoS mechanism on interfaces below 2.0 Mbps.
7.
A, B, and D. The PPDIOO design methodology includes the process of analyzing net-
work requirements, characterizing the existing network, and designing the topology.
8.
D. DMZ/e-commerce, Internet, remote-access VPN, and WAN/MAN are modules that
are found in the enterprise edge.
9.
C and D. DMZ/e-commerce and Internet are modules that are found in the enterprise
edge.
10.
A. The remote-access/VPN module connects to PSTN-type connectivity.
11.
B. WAN/MAN modules are used to connect to Frame Relay and ATM networks in the
enterprise edge.
12.
B. After you analyze the network requirements and characterize the existing network,
the design of the topology occurs, which includes the implementation planning.
13.
D. The WAN/MAN functional area or module provides connectivity to the remote
sites via Frame Relay, TDM, ATM, or MPLS services.
14.
D. The framing for dark fiber is determined by the enterprise not the provider.
15.
D. Low-latency queuing (LLQ) adds a strict priority queue to CBWFQ.
16.
24 timeslots are used in a T1.
17.
C. Wireless bridges are used to connect two separate wireless networks together, typi-
cally located in two separate buildings.
18.
DWDM maximizes the use of the installed base of fiber used by ser v ice prov iders and
is a critical component of optical networks.
19.
CMTS. The equipment used on the remote access side is the cable modem, which con-
nects to the Cable Modem Termination System or (CMTS) on the Internet service
provider side.
