1.
Using virtual circuits, any site can communicate directly with another.
A. 
B. 
C. 
D. 
2.
Consists of the devices and inside wiring located on the enterprise edge, connecting to a carrier link.
A. 
B. 
C. 
D. 
3.
The customer device that passes data from the customer computer network or host computer for transmission over the WAN
A. 
B. 
C. 
D. 
4.
Consists of devices that put data on the local loop. Provides an interface to connect subscribers to a communication link on the WAN cloud.
A. 
B. 
C. 
D. 
5.
Splits traffic into data packets that are routed over a shared network
A. 
B. 
C. 
D. 
6.
The local loop connects the CPE to the CO
7.
Which two items describe Integrated Services Digital Network (ISDN)
A. 
B. 
C. 
Enables the local loop of a PSTN to carry digital signals
D. 
Contains a 5 byte header followed by a 48 byte payload
8.
Uses labels, which tell the router what to do with the packet.
A. 
B. 
C. 
D. 
9.
How many DS0 channels are bundled to produce a 1.544 Mbps T1 line?
A. 
B. 
C. 
D. 
10.
Which technology requires the use of PPPoE to provide PPP connections to customers?
A. 
B. 
C. 
D. 
11.
PPP authentication is Performed at which OSI layer?
A. 
B. 
C. 
D. 
12.
Which protocol is used by PPP to provide authentication and protection from playback attacks?
A. 
B. 
C. 
D. 
13.
With which layers of the OSI model do the PPP control protocols interface? CHOOSE TWO
A. 
NCP - interface with Layer 3
B. 
NCP interfaces with Layer 2
C. 
LCP interface with Layer 1
D. 
LCP interfaces with layer 3
14.
What function does the NCP perform in the establishment of a PPP session?
A. 
Completes the Specific configuration of the network layer protocol that is being used.
B. 
C. 
D. 
Reduces the amount of bits that must travel across the link.
15.
Which medium do service providers use to transmit data over WAN connections with SONET, SDH, and DWDM?
A. 
B. 
C. 
D. 
16.
A new corporation needs a data network that must meet certain requirements. The network must be fast and reliable to transmit secure video conferencing calls between two branches. If cost is not a consideration, which two types of WAN infrastructure would best meet the requirements? (Choose two.)
A. 
B. 
C. 
D. 
E. 
F. 
17.
Which two WAN infrastructure services are examples of private connections? (Choose two.)
A. 
B. 
C. 
D. 
18.
Which public WAN technology provides security by using encrypted tunnels over Internet connections?
A. 
B. 
C. 
D. 
19.
the default serial encapsulation method when connecting two Cisco routers.
A. 
B. 
C. 
D. 
20.
There are many advantages to using PPP (Choose Two)
A. 
The link quality management feature (LQM) monitors the quality of the link.
B. 
C. 
D. 
Most of the work happens in the application layers
21.
At the physical layer, you can configure PPP on a range of interfaces. The only absolute requirement imposed by PPP is
A. 
B. 
C. 
D. 
LCP work in the Network Layer
22.
At the physical layer, PPP can use Synchronous media or Asynchronous media
23.
Standard ACLs filter IP packets based on...
A. 
Source and Destination Address
B. 
C. 
D. 
E. 
F. 
24.
Extended ACLS filter IP Packets based on several attributes. (choose two)
A. 
Source and Destination Addresses
B. 
Source and Destination TCP and UDP ports
C. 
D. 
25.
This is so much studying and my Brain Hurts!!