Study for final Flashcards
Which three technologies have presented challenges to network administrators when designing corporate networks? (Choose three.) --collaboration tools personal devices PoE QoS virtualization
collaboration tools
personal devices
virtualization
In a new network design, an organization has decided to manage all of its wireless access points using a wireless network controller. In which network design module of the campus network architecture would the centralized wireless network controllers be found?
services
In a hierarchical network design, which layer is characterized by the use of port security and Power over Ethernet (PoE)?
access
Which layer of the hierarchical design model is a control boundary between the other layers?
distribution
What is a definition of a two-tier LAN network design?
distribution and core layers collapsed into one tier, and the access layer on a separate tier
what is the structured engineering principle for hierarchical network design with the description:
The network has been designed with the following sections: enterprise campus, services block, data center, and Internet edge.
modularity
Which Cisco Borderless Network service is used to deliver anywhere, anytime access to information from any device?
Cisco Motion
Branch office networks and corporate headquarter networks can be connected together using
_______
VPN connections through the Internet infrastructure.
site to site
What are two common types of circuit-switched WAN technologies?
PSTN
ISDN
devices and inside wiring that are located on the enterprise edge and connect to a carrier link?
customer premises equipment
a point that is established in a building or complex to separate customer equipment from service provider equipment
demarcation point
customer devices that pass the data from a customer network or host computer for transmission over the WAN
data terminal equipment
devices that put data on the local loop
data communications equipment
Which statement correctly describes a WAN technology?
- The 53-byte ATM cell operates more efficiently for big frames.
- MPLS can be used to deliver any type of packet between sites.
- VSATs create a public WAN while providing connectivity to remote locations.
MPLS can be used to deliver any type of packet between sites.
Which one of the WAN technologies is inadequate for video traffic but operates adequately for voice traffic?
ISDN BRI
Which two WAN infrastructure services are examples of private connections? -T1/E1 -wireless -DSL -cable frame relay
T1/E1
Frame Relay
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.) _ dedicated -switched private infrastructure internet -public infra
dedicated
private infrastructure
Which two functions are provided by the NCP during a PPP connection?
bringing the network layer protocol or protocols up and down
- the negotiation of options for the IP protocol
With which layers of the OSI model do the PPP control protocols interface?
NCP interfaces with Layer 3; LCP interfaces with Layer 1
What is the purpose of a null modem cable?
to connect between two DTE devices
How many DS0 channels are bounded to produce a 1.544 Mb/s DS1 line?
24
The default encapsulation for WAN interfaces is
_______
on Cisco
hdlc
Which two statements are true about time-division multiplexing (TDM)?
_TDM relies on Layer 3 protocols to operate.
-Multiple channels can transmit over a single link.
_Original data streams must be reconstructed at the destination.
It allows information from multiple channels to be allocated bandwidth on multiple wires.
Multiple channels can transmit over a single link.
Original data streams must be reconstructed at the destination.
Which command would be used to troubleshoot serial interface encapsulation?
debug ppp packet
